MCP Server
Duo Data Utilities
com.duoleads.api/data-utilities
What this MCP does
Provides pay-per-call utilities for identifiers, hashing, text processing, statistics, dates, currencies, geographic calculations, country references, and blockchain formats.
Capabilities
Tools
33
tools
chain_address
Blockchain address format detection and checksum validation
Identify which blockchain an address belongs to and validate its encoding: EVM EIP-55 checksum, Bitcoin base58check and bech32/bech32m with witness version, Solana base58 and on-curve check, Cosmos bech32 with its HRP, Tron, XRP, Litecoin, Dogecoin, Cardano, Polkadot SS58 and Algorand. Returns every chain the address is valid for (ambiguous when several match), the checksummed form for EVM addresses, and the reason a check failed, including unrecognised_format. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['address'], 'properties': {'expect': {'enum': ['evm', 'bitcoin', 'solana', 'cosmos', 'tron', 'xrp', 'cardano', 'polkadot', 'algorand', 'litecoin', 'dogecoin'], 'type': 'string', 'description': 'Restrict the check to one chain id. Accepted: evm, bitcoin, solana, cosmos, tron, xrp, cardano, polkadot, algorand, litecoin, dogecoin.'}, 'address': {'type': 'string', 'description': 'Address to identify and validate. Accepted: at most 128 characters.'}, 'chain_id': {'type': 'string', 'description': 'EVM chain id; enables EIP-1191 chain-salted checksum validation. Accepted: a positive integer chain id.'}}}
chain_selector
Keccak-256 hash, 4-byte function selector and 32-byte event topic from a Solidity signature
Compute the Keccak-256 hash of a Solidity function or event signature and derive the 4-byte function selector and the 32-byte event topic. Normalises the signature first — strips parameter names, expands uint to uint256 and the other aliases, flattens tuples — so a signature copied from source code produces the same selector as the canonical form. Also hashes arbitrary text or hex bytes with Keccak-256. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'data': {'type': 'string', 'description': 'Alternative to signature: raw data to Keccak-256 hash. Accepted: at most 8192 characters.'}, 'kind': {'enum': ['function', 'event', 'error'], 'type': 'string', 'description': 'function (default), event or error. Accepted: function, event, error.'}, 'encoding': {'enum': ['utf8', 'hex'], 'type': 'string', 'description': 'Encoding of data: utf8 (default) or hex. Accepted: utf8, hex.'}, 'signature': {'type': 'string', 'description': 'Solidity function, event or error signature, e.g. transfer(address to, uint amount). Accepted: at most 1024 characters.'}}}
code_hash
SHA-2, SHA-3, BLAKE2 and HMAC digests of supplied text or base64 bytes
Compute a cryptographic digest of supplied data: SHA-256, SHA-384, SHA-512, SHA-1, SHA3-256, SHA3-512, Keccak-256, BLAKE2b-256 and BLAKE2b-512, plus HMAC with any of them. Input is UTF-8 text, base64 or hex bytes; output is hex, base64, base64url or base32. Returns the digest, the byte length of the input, and the exact algorithm identifier used. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['algo', 'data'], 'properties': {'out': {'enum': ['hex', 'base64', 'base64url', 'base32'], 'type': 'string', 'description': 'Digest output encoding: hex (default), base64, base64url or base32. Accepted: hex, base64, base64url, base32.'}, 'algo': {'enum': ['sha256', 'sha384', 'sha512', 'sha1', 'sha3-256', 'sha3-512', 'keccak256', 'blake2b-256', 'blake2b-512'], 'type': 'string', 'description': 'Digest algorithm. Accepted: sha256, sha384, sha512, sha1, sha3-256, sha3-512, keccak256, blake2b-256, blake2b-512.'}, 'data': {'type': 'string', 'description': 'Input data, interpreted per encoding. At most 8192 characters. An empty value hashes the empty string. Accepted: at most 8192 characters.'}, 'encoding': {'enum': ['utf8', 'base64', 'base64url', 'hex'], 'type': 'string', 'description': 'Encoding of data: utf8 (default), base64, base64url or hex. Accepted: utf8, base64, base64url, hex.'}, 'hmac_key': {'type': 'string', 'description': 'If present, computes HMAC with this key. Accepted: at most 512 characters.'}, 'hmac_key_encoding': {'enum': ['utf8', 'base64', 'base64url', 'hex'], 'type': 'string', 'description': 'Encoding of hmac_key, as encoding. Accepted: utf8, base64, base64url, hex.'}}}
code_idn
IDNA2008 / punycode conversion and domain-label validation
Convert internationalised domain names between Unicode and ASCII punycode in either direction, label by label, and validate each label against IDNA2008: length, leading and trailing hyphens, the hyphen-hyphen rule at positions 3 and 4, disallowed code points and bidirectional rules. Returns both forms, the per-label breakdown and the first rule violated. Strict mode is IDNA2008 (UTS 46 non-transitional); it may reject names /v1/code/url displays. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'to': {'enum': ['ascii', 'unicode', 'both'], 'type': 'string', 'description': 'ascii, unicode or both (default). Validated only: the response always carries both forms. Accepted: ascii, unicode, both.'}, 'domain': {'type': 'string', 'description': 'Domain name in Unicode or punycode form. Accepted: at most 512 characters.'}, 'strict': {'enum': ['true', 'false'], 'type': 'string', 'description': 'true (default) applies IDNA2008 strictly; false uses UTS 46 transitional (IDNA2003-compatible) processing, which maps e.g. ß to ss; current browsers and /v1/code/url use non-transitional processing, so its output can differ from them. Accepted: true or false.'}}}
code_jwt
JWT structural decode: header, claims, expiry state — no signature verification
Decode a JSON Web Token without verifying it: returns the header, the claims, the signature length and algorithm, and a computed view of the time claims — whether exp has passed, whether nbf is in the future, and the remaining lifetime in seconds against a supplied or current instant. Reports structural problems such as a missing part, invalid base64url or an alg of none. It does not and cannot verify the signature; do not use it to decide trust. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['token'], 'properties': {'at': {'type': 'string', 'description': 'Instant to evaluate exp/nbf against: RFC 3339 or epoch seconds. Default now. Accepted: RFC 3339 timestamp or integer epoch.'}, 'token': {'type': 'string', 'description': 'The JWT to decode (not verified). At most 8192 characters. Accepted: at most 8192 characters.'}}}
code_semver
Semantic-version parse, compare, and range satisfaction
Parse a semantic version into major, minor, patch, prerelease and build parts; compare two versions by precedence including prerelease ordering; or test whether a version satisfies a range expression using caret, tilde, hyphen, x-ranges and comparator sets. Returns the parsed structure, the comparison result and the reason a range did not match. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'a': {'type': 'string', 'description': 'First version for op=compare. Accepted: at most 256 characters.'}, 'b': {'type': 'string', 'description': 'Second version for op=compare. Accepted: at most 256 characters.'}, 'op': {'enum': ['parse', 'compare', 'satisfies', 'sort'], 'type': 'string', 'description': 'parse (default), compare, satisfies or sort. Accepted: parse, compare, satisfies, sort.'}, 'range': {'type': 'string', 'description': 'Range expression for op=satisfies, e.g. ^1.2.0. Accepted: at most 256 characters.'}, 'version': {'type': 'string', 'description': 'Version to parse (op=parse) or test (op=satisfies). Accepted: at most 256 characters.'}, 'versions': {'type': 'string', 'description': 'Comma-separated versions for op=sort, at most 100. Accepted: at most 100 versions.'}}}
code_url
URL parse, canonicalise, and registrable-domain (eTLD+1) extraction
Parse and canonicalise a URL, and extract its registrable domain using the Public Suffix List — the part an agent needs to decide whether two URLs belong to the same owner. Returns scheme, host, port, path, decoded query parameters and fragment, the public suffix, the registrable domain (eTLD+1), the subdomain, whether the suffix is an ICANN or a private entry, plus a canonical form with default port, dot-segments and percent-encoding normalised. unicode_host uses WHATWG/UTS 46 (non-strict). Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'Absolute URL, or a bare hostname (https:// assumed). Accepted: an absolute URL, or a hostname.'}, 'base': {'type': 'string', 'description': 'Base URL to resolve url against as a relative reference. Accepted: an absolute URL.'}}}
geo_distance
Geodesic distance, initial bearing and destination point on WGS-84
Distance and direction between WGS-84 coordinates: geodesic distance by Vincenty with a haversine fallback, initial and final bearing, the midpoint, and the destination point reached from a start point on a given bearing and distance. Also computes the cumulative length of a supplied coordinate path. Results in metres, kilometres, nautical miles and miles. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'op': {'enum': ['distance', 'destination', 'midpoint', 'path'], 'type': 'string', 'description': 'distance (default), destination, midpoint or path. Accepted: distance, destination, midpoint, path.'}, 'lat1': {'type': 'string', 'description': 'Start latitude. Accepted: a number between -90 and 90.'}, 'lat2': {'type': 'string', 'description': 'End latitude. Accepted: a number between -90 and 90.'}, 'lon1': {'type': 'string', 'description': 'Start longitude. Accepted: a number between -180 and 180.'}, 'lon2': {'type': 'string', 'description': 'End longitude. Accepted: a number between -180 and 180.'}, 'path': {'type': 'string', 'description': 'Comma-separated lat,lon pairs for op=path, at most 200 points. Accepted: comma-separated lat,lon pairs, at most 200 points.'}, 'method': {'enum': ['vincenty', 'haversine'], 'type': 'string', 'description': 'vincenty (default, WGS-84) or haversine. Accepted: vincenty, haversine.'}, 'bearing': {'type': 'string', 'description': 'Initial bearing in degrees for op=destination. Accepted: number 0-360.'}, 'distance_m': {'type': 'string', 'description': 'Distance in metres for op=destination, 0 to 1e9 (about 25 Earth circumferences); larger values are 400 INVALID_PARAM. Accepted: a number between 0 and 1e9 (metres).'}}}
geo_geohash
Geohash encode and decode with neighbour cells
Encode a WGS-84 latitude and longitude to a geohash at a chosen precision, or decode a geohash back to its bounding box, centre point and error bounds in metres. Encoding also returns the eight neighbouring cells, which is what a caller needs to do proximity search over a geohash-indexed store without a spatial database. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'op': {'enum': ['encode', 'decode'], 'type': 'string', 'description': 'encode (default): lat/lon to geohash. decode: geohash to bounding box. Accepted: encode, decode.'}, 'lat': {'type': 'string', 'description': 'WGS-84 latitude, -90 to 90. Required when op=encode. Accepted: a number between -90 and 90.'}, 'lon': {'type': 'string', 'description': 'WGS-84 longitude, -180 to 180. Required when op=encode. Accepted: a number between -180 and 180.'}, 'geohash': {'type': 'string', 'description': 'Geohash to decode, 1-12 characters. Required when op=decode. Accepted: base32 geohash alphabet, excluding a, i, l and o.'}, 'precision': {'type': 'string', 'description': 'Geohash length 1-12, default 9 (about 4.8 m). Accepted: integer 1-12.'}}}
geo_pluscode
Open Location Code (plus code) encode and decode
Encode coordinates as an Open Location Code (plus code) at a chosen length, or decode a full code back to its bounding box and centre. Also shortens a full code against a reference coordinate and recovers a shortened code given a reference, which is how plus codes are normally exchanged in text. Returns code length, precision in metres and validity. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'op': {'enum': ['encode', 'decode', 'shorten', 'recover'], 'type': 'string', 'description': 'encode (default), decode, shorten or recover. Accepted: encode, decode, shorten, recover.'}, 'lat': {'type': 'string', 'description': 'Latitude for op=encode. Accepted: a number between -90 and 90.'}, 'lon': {'type': 'string', 'description': 'Longitude for op=encode. Accepted: a number between -180 and 180.'}, 'code': {'type': 'string', 'description': 'Plus code for decode, shorten or recover. Accepted: at most 20 characters.'}, 'length': {'type': 'string', 'description': 'Integer code length for op=encode: one of 2,4,6,8,10 (default),11,12,13,14,15. Other integers in 2-15 are 400 UNSUPPORTED_VALUE. Accepted: one of 2,4,6,8,10,11,12,13,14,15.'}, 'ref_lat': {'type': 'string', 'description': 'Reference latitude for op=shorten/recover. Accepted: a number between -90 and 90.'}, 'ref_lon': {'type': 'string', 'description': 'Reference longitude for op=shorten/recover. Accepted: a number between -180 and 180.'}}}
geo_polygon
Point-in-polygon, bounding box, centroid and area on supplied GeoJSON
Geometric predicates on a GeoJSON geometry supplied in the request: point-in-polygon with correct hole handling, bounding box, centroid, signed area in square metres, perimeter length, and ring winding order. Accepts Polygon and MultiPolygon, and a GeoJSON Feature wrapping either. Area and length are geodesic on the WGS-84 ellipsoid, correct at any latitude; containment is planar in lon/lat. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['geometry'], 'properties': {'lat': {'type': 'string', 'description': 'Point latitude; with lon, runs the containment test. Accepted: a number between -90 and 90.'}, 'lon': {'type': 'string', 'description': 'Point longitude; with lat, runs the containment test. Accepted: a number between -180 and 180.'}, 'ops': {'type': 'string', 'description': 'Comma-separated subset of contains,bbox,centroid,area,perimeter,winding. Default all. Accepted: comma-separated subset of contains, bbox, centroid, area, perimeter, winding.'}, 'geometry': {'type': 'string', 'description': 'URL-encoded GeoJSON Polygon, MultiPolygon or a Feature wrapping one. At most 3072 characters and 2000 coordinate pairs. Accepted: valid GeoJSON.'}}}
id_gs1
GS1 identifier validation: GTIN-8/12/13/14, GLN, SSCC
Validate and convert GS1 identifiers: GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14, GLN and SSCC. Returns the check-digit verdict, the computed correct check digit, the GTIN-14 form with its indicator digit, and conversion between GTIN-8, GTIN-12, GTIN-13 and GTIN-14. No company-prefix split is returned: GS1's prefix-length table is no longer public data. Also computes a missing check digit from a partial code. Structure only, no product database. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['value'], 'properties': {'op': {'enum': ['validate', 'checkdigit', 'convert'], 'type': 'string', 'description': 'validate (default), checkdigit (compute the missing final digit) or convert. Accepted: validate, checkdigit, convert.'}, 'to': {'enum': ['gtin8', 'gtin12', 'gtin13', 'gtin14'], 'type': 'string', 'description': 'Target format. Required when op=convert. Accepted: gtin8, gtin12, gtin13, gtin14.'}, 'value': {'type': 'string', 'description': 'GS1 code, digits with optional spaces or hyphens. For op=checkdigit, omit the final digit. Accepted: 8, 12, 13, 14 or 18 digits.'}}}
id_iban
IBAN validation: length, per-field character classes, mod-97-10, decomposed bank/branch/account
Validate an IBAN: length for its country, permitted character classes per field, and the ISO 7064 mod-97-10 check digits. Returns the verdict with a specific failure reason, the electronic and print formats, and the decomposed bank code, branch code and account number according to that country's registered layout. Covers the 89 countries of the SWIFT IBAN registry. Structure and checksum only, it does not confirm the account exists. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['iban'], 'properties': {'iban': {'type': 'string', 'description': 'The IBAN. Spaces and non-breaking spaces are stripped; lowercase is accepted and uppercased. Accepted: an IBAN of at most 64 characters.'}}}
id_iban-build
Construct an IBAN from a country code and BBAN or bank/branch/account, computing mod-97-10
Construct an IBAN from a country code and the domestic account parts, computing the ISO 7064 mod-97-10 check digits. Takes either a single BBAN string or named parts (bank code, branch code, account number); digit fields are left-padded with zeros to the country's registered widths. Returns the IBAN in electronic and print formats with its bank, branch and account parts. Covers the 89 SWIFT registry countries. Named parts work only where they span the whole BBAN; otherwise pass the BBAN. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['country'], 'properties': {'bank': {'type': 'string', 'description': 'Bank code. Requires account. Accepted: a bank code of at most 16 characters.'}, 'bban': {'type': 'string', 'description': 'The whole domestic account number (BBAN), alphanumeric. Use this or bank plus account. Accepted: an alphanumeric BBAN of at most 34 characters.'}, 'branch': {'type': 'string', 'description': 'Branch code, for countries whose layout has a branch field. Accepted: a branch code of at most 16 characters.'}, 'account': {'type': 'string', 'description': 'Account number. Requires bank. Accepted: an account number of at most 32 characters.'}, 'country': {'type': 'string', 'description': 'ISO 3166-1 alpha-2 country code in the SWIFT IBAN registry, case-insensitive. Accepted: an ISO 3166-1 alpha-2 code in the IBAN registry.'}}}
id_national
National identity- and company-number validation, 23 countries
Validate a national identity, tax or company registration number against its country's official checksum rule. Covers 23 countries including NL BSN, ES NIF/NIE/CIF, IT codice fiscale, FR SIREN/SIRET, DE Steuer-ID, BE/PL/CZ national numbers, SE/NO/DK/FI personal numbers, BR CPF/CNPJ, AU ABN/TFN, UK NINo, IE PPS, US NPI/EIN. Structure and check digit only — no registry lookup; the number itself is never stored (logs keep only its length and character types). Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['country', 'kind', 'value'], 'properties': {'kind': {'type': 'string', 'description': 'Identifier type for that country, e.g. bsn, nif, cf, cpf. Accepted: an identifier kind supported for the country.'}, 'value': {'type': 'string', 'description': 'The identifier. Separators (space . - /) are stripped before checking. Accepted: at most 64 characters.'}, 'country': {'type': 'string', 'description': 'ISO 3166-1 alpha-2 country code, case-insensitive. One of the 23 supported countries; the United Kingdom is accepted as UK or GB (the response echoes what you sent). Accepted: one of the 23 supported ISO 3166-1 alpha-2 codes.'}}}
id_security
ISIN, CUSIP, SEDOL and FIGI check-digit validation
Validate the check digit of a financial security identifier: ISIN (ISO 6166), CUSIP, SEDOL and FIGI. Returns the verdict, the computed correct check character, and for an ISIN the issuing country prefix and the embedded NSIN. Also builds an ISIN from a country code plus a 9-character NSIN. Format and checksum only, no security master lookup. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'op': {'enum': ['validate', 'build-isin'], 'type': 'string', 'description': 'validate (default) or build-isin. Accepted: validate, build-isin.'}, 'nsin': {'type': 'string', 'description': 'Exactly 9 alphanumeric characters. Required when op=build-isin. Accepted: exactly 9 alphanumeric characters.'}, 'value': {'type': 'string', 'description': 'ISIN, CUSIP, SEDOL or FIGI to validate. Required when op=validate. Accepted: an alphanumeric security identifier of at most 24 characters.'}, 'country': {'type': 'string', 'description': 'ISO 3166-1 alpha-2 code or XS. Required when op=build-isin. Accepted: at most 16 characters.'}}}
num_allocate
Split a money amount into shares with no rounding loss
Split a money amount into shares without losing or inventing a cent. Divide evenly into N parts, or by a list of ratios, and the remainder is distributed one minor unit at a time by a named, deterministic rule — largest-remainder, first-wins or last-wins — so the parts always sum exactly to the original. Uses the ISO 4217 minor-unit exponent of the currency, so zero- and three-decimal currencies work (JPY 0, KWD 3); metals and XXX are rejected. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['amount', 'currency'], 'properties': {'rule': {'enum': ['largest-remainder', 'first', 'last', 'round-robin'], 'type': 'string', 'description': 'Remainder rule: largest-remainder (default), first, last or round-robin. Accepted: largest-remainder, first, last, round-robin.'}, 'parts': {'type': 'string', 'description': 'Number of equal parts, 1-1000. One of parts or ratios. Accepted: integer 1-1000.'}, 'amount': {'type': 'string', 'description': 'Decimal amount, absolute value below 1e12. Accepted: a decimal amount with absolute value below 1e12.'}, 'ratios': {'type': 'string', 'description': 'Comma-separated non-negative ratios, at most 1000, each with at most 15 integer digits and 15 decimal places. One of parts or ratios. Accepted: comma-separated non-negative numbers, at most 1000.'}, 'currency': {'type': 'string', 'description': 'ISO 4217 alpha-3 code. Accepted: an ISO 4217 alpha-3 code.'}}}
num_radix
Integer conversion between arbitrary numeric bases 2–36
Convert an integer between any two numeric bases from 2 to 36, with arbitrary precision so values far beyond 2^53 are exact. Accepts an optional sign and common prefixes (0x, 0b, 0o), validates every digit against the source base, and returns the value in the target base, in decimal, and as its bit length and digit count. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['value'], 'properties': {'to': {'type': 'string', 'description': 'Target base 2-36, default 10. Accepted: integer 2-36.'}, 'case': {'enum': ['lower', 'upper'], 'type': 'string', 'description': 'Digit case for bases above 10: lower (default) or upper. Accepted: lower, upper.'}, 'from': {'type': 'string', 'description': "Source base 2-36, or auto (default) to read a 0x/0b/0o prefix. Accepted: integer 2-36, or 'auto'."}, 'value': {'type': 'string', 'description': 'Integer to convert; optional sign and 0x/0b/0o prefix. Accepted: at most 1024 characters.'}, 'prefix': {'enum': ['true', 'false'], 'type': 'string', 'description': 'Emit 0x/0b/0o where conventional. Default false. Accepted: true or false.'}}}
num_stats
Descriptive statistics and percentiles for a supplied numeric array
Descriptive statistics for a supplied numeric array in one call: count, sum, mean, median, mode, variance and standard deviation with variance and standard deviation honouring ddof (default 1, the sample form; 0 gives the population form) and always-population *_population fields, min, max, range, the quartiles and interquartile range, skewness, kurtosis, and any requested percentiles. Percentiles use a named interpolation method so the result is reproducible rather than implementation-defined. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['values'], 'properties': {'ddof': {'type': 'string', 'description': 'Delta degrees of freedom for variance/stdev: 1 (default, sample, n-1) or 0 (population, n). The *_population fields are always population. Accepted: integer 0-1.'}, 'method': {'enum': ['linear', 'nearest', 'lower', 'higher', 'midpoint'], 'type': 'string', 'description': 'Percentile interpolation (NumPy/R names): linear (default), nearest, lower, higher, midpoint. Accepted: linear, nearest, lower, higher, midpoint.'}, 'values': {'type': 'string', 'description': 'Comma-separated finite numbers, at most 500 values. Accepted: comma-separated finite numbers.'}, 'percentiles': {'type': 'string', 'description': 'Comma-separated percentiles 0-100, at most 20. Default 25,50,75. Accepted: numbers between 0 and 100.'}}}
num_words
Number spelled out in words, 12 locales, with ordinal and currency forms
Spell a number out in words in English, Dutch, German, French, Spanish, Italian, Portuguese, Polish, Russian, Turkish, Swedish or Japanese, in cardinal, ordinal or currency form. Currency form agrees the number with the currency noun and gives real minor-unit names for 19 currencies (EUR, USD, GBP, CHF, SEK, NOK, DKK, PLN, RUB, TRY, CNY, INR, BRL, MXN, CAD, AUD, NZD, CZK, HUF); any other ISO 4217 code uses a fraction such as 56/100. Values up to 10^15. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['value'], 'properties': {'case': {'enum': ['lower', 'sentence', 'title'], 'type': 'string', 'description': 'lower (default), sentence or title. Accepted: lower, sentence, title.'}, 'form': {'enum': ['cardinal', 'ordinal', 'currency', 'year'], 'type': 'string', 'description': 'cardinal (default), ordinal, currency or year. Accepted: cardinal, ordinal, currency, year.'}, 'lang': {'enum': ['en', 'nl', 'de', 'fr', 'es', 'it', 'pt', 'pl', 'ru', 'tr', 'sv', 'ja'], 'type': 'string', 'description': 'Language, ISO 639-1. Default en. Accepted: en, nl, de, fr, es, it, pt, pl, ru, tr, sv, ja.'}, 'value': {'type': 'string', 'description': 'Integer or decimal, absolute value below 1e15. Accepted: absolute value below 1e15.'}, 'currency': {'type': 'string', 'description': 'ISO 4217 code. Required when form=currency, rejected otherwise. Accepted: an ISO 4217 alpha-3 code.'}}}
ref_airport
Airport lookup by IATA or ICAO code with coordinates and elevation
Look up an airport by IATA or ICAO code and get its name, city, country, ISO 3166-2 region code, WGS-84 coordinates, elevation and IANA time zone, or find the nearest airports to a coordinate within a radius. Covers every airport worldwide that holds a three-letter IATA code and scheduled service. Returns the code type that matched and the distance in kilometres for proximity results. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'code': {'type': 'string', 'description': '3-letter IATA or 4-letter ICAO code, case-insensitive. Accepted: a 3-letter IATA or 4-letter ICAO code.'}, 'near': {'type': 'string', 'description': 'lat,lon to search around. Accepted: lat,lon.'}, 'limit': {'type': 'string', 'description': 'Maximum results 1-25, default 5. Only with near. Accepted: integer 1-25.'}, 'country': {'type': 'string', 'description': 'ISO 3166-1 alpha-2 filter. Accepted: an ISO 3166-1 alpha-2 code.'}, 'radius_km': {'type': 'string', 'description': 'Search radius in km, 1-1000, default 100. Only with near. Accepted: number 1-1000.'}}}
ref_country
ISO 3166-1 country record: codes, currency, TLD, UN M49 region, ISO 3166-2 subdivisions
Look up a country or territory by ISO 3166-1 alpha-2, alpha-3 or numeric code, or by name, and get the other codes, the official and common English names, the UN M49 region and sub-region, the currencies in use, the country-code top-level domain, and optionally the full ISO 3166-2 subdivision list with each subdivision's type. Also resolves an ISO 3166-2 subdivision code such as NL-NH directly. Names are matched case- and accent-insensitively. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'code': {'type': 'string', 'description': 'ISO 3166-1 alpha-2, alpha-3 or numeric code, or an ISO 3166-2 subdivision code such as NL-NH. Accepted: ISO 3166-1 alpha-2/alpha-3/numeric, or an ISO 3166-2 subdivision code.'}, 'name': {'type': 'string', 'description': 'Substring search on country names, case- and accent-insensitive. Accepted: at most 128 characters.'}, 'include': {'type': 'string', 'description': 'Comma-separated: subdivisions, m49, currency, tld. Default m49,currency,tld. Accepted: comma-separated subset of subdivisions, m49, currency, tld.'}}}
ref_currency
Currency record (ISO 4217 codes, names and minor units; CLDR cash rounding)
Look up a currency by its ISO 4217 alphabetic or numeric code: the official English name, minor-unit exponent, fund flag, the smallest cash denomination where it differs from the minor unit, the territories that use it, and historic codes on request. Returns the correct rounding increment for cash amounts, which is what a caller needs to render or settle a price. This route returns currency facts only and never an exchange rate. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'code': {'type': 'string', 'description': 'ISO 4217 alpha-3 or 3-digit numeric code. Accepted: a 3-letter alphabetic or 3-digit numeric ISO 4217 code.'}, 'country': {'type': 'string', 'description': 'ISO 3166-1 alpha-2; returns the currencies in use there. Accepted: an ISO 3166-1 alpha-2 code.'}, 'include': {'type': 'string', 'description': 'Comma-separated: territories, historic. Default none. Accepted: comma-separated subset of territories, historic.'}}}
ref_nuts
NUTS statistical region code lookup for the EU
Look up a NUTS statistical region of the European Union: resolve a NUTS code to its name, country and level, walk up to its parents or down to its children, or search regions by name. Covers all four levels (country, major region, basic region, small region) for the 27 member states and 12 further reporting countries, from the NUTS 2024 classification. Returns the Latin-script and local-language names plus the urbanisation, coastal and mountain typologies. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'code': {'type': 'string', 'description': 'NUTS code, 2-5 characters, case-insensitive (level-3 codes may contain letters, e.g. NL32B). A GR or GB prefix is accepted for EL or UK. Accepted: 2 to 5 characters matching ^[A-Z]{2}[0-9A-Z]{0,3}$.'}, 'name': {'type': 'string', 'description': 'Substring search on region names, case- and accent-insensitive. Up to 25 matches. Accepted: at most 128 characters.'}, 'level': {'type': 'string', 'description': 'Restrict a name search to one level, 0-3. Accepted: integer 0-3.'}, 'country': {'type': 'string', 'description': 'ISO 3166-1 alpha-2 country filter (UK/GB and EL/GR both accepted). Accepted: an ISO 3166-1 alpha-2 code.'}, 'include': {'type': 'string', 'description': 'Comma-separated: parents, children, typology. Default parents,typology. Accepted: comma-separated subset of parents, children, typology.'}}}
text_similarity
String distance and phonetic keys: Levenshtein, Jaro-Winkler, Soundex, Metaphone
Compare two strings and return every standard similarity measure in one call: Levenshtein and Damerau-Levenshtein edit distance, normalised similarity, Jaro and Jaro-Winkler, longest common subsequence, Dice coefficient on character bigrams, and the Soundex, Metaphone and NYSIIS phonetic keys of each string. Optional case folding, accent folding and whitespace normalisation before comparison. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['a', 'b'], 'properties': {'a': {'type': 'string', 'description': 'First string, at most 512 characters. Accepted: at most 512 characters.'}, 'b': {'type': 'string', 'description': 'Second string, at most 512 characters. Accepted: at most 512 characters.'}, 'fold': {'type': 'string', 'description': 'Comma-separated folds before comparing: case, accents, space, punct. Default case. Accepted: comma-separated subset of case, accents, space, punct.'}, 'only': {'type': 'string', 'description': 'Comma-separated measure names to compute: levenshtein, damerau_levenshtein, normalised_similarity, jaro, jaro_winkler, lcs_length, dice, phonetic (all three keys), soundex, metaphone, nysiis. Default all. Accepted: comma-separated subset of levenshtein, damerau_levenshtein, normalised_similarity, jaro, jaro_winkler, lcs_length, dice, phonetic, soundex, metaphone, nysiis.'}}}
text_slug
Unicode-aware URL slug with transliteration
Turn arbitrary text into a URL-safe slug. Decomposes accents, transliterates German umlauts, Scandinavian and Turkish letters, the ligatures that lose meaning under plain NFD, and Cyrillic (Russian, Ukrainian, Belarusian, Bulgarian, Serbian, Macedonian; language from lang or inferred from the letters). Lowercases, collapses separators, truncates on a word boundary. Returns the slug plus what was removed. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['text'], 'properties': {'max': {'type': 'string', 'description': 'Maximum slug length 1-512, default 96. Truncates at the last complete word. Accepted: integer 1-512.'}, 'case': {'enum': ['lower', 'preserve', 'upper'], 'type': 'string', 'description': 'lower (default), preserve or upper. Accepted: lower, preserve, upper.'}, 'lang': {'type': 'string', 'description': 'ISO 639-1 code for locale-sensitive folding (de: ü->ue) and the Cyrillic table (ru, uk, be, bg, sr, mk). Default locale-neutral; for Cyrillic the language is then inferred from letters unique to Ukrainian, Belarusian, Serbian or Macedonian, else Russian BGN/PCGN letters with ISO 9 (accents folded) for the rest. Accepted: an ISO 639-1 language code.'}, 'text': {'type': 'string', 'description': 'Text to slugify, at most 2048 characters. Accepted: at most 2048 characters.'}, 'separator': {'enum': ['-', '_', '.', ''], 'type': 'string', 'description': 'Separator: - (default), _, . or empty. Accepted: -, _, . or empty.'}}}
text_transliterate
Cyrillic-to-Latin transliteration (ISO 9:1995, BGN/PCGN Russian)
Transliterate Cyrillic text into Latin using a named standard: ISO 9:1995 (one-to-one, with diacritics, covering the full standard: Russian, other Slavic, historic and non-Slavic Cyrillic letters) or BGN/PCGN, which is the Russian system only (Ukrainian, Serbian and other letters are passed through unmapped). Returns the transliteration, the source script, the standard, the mapped fraction and the unmapped characters. Other scripts are rejected with UNSUPPORTED_VALUE. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['text'], 'properties': {'case': {'enum': ['preserve', 'lower', 'upper'], 'type': 'string', 'description': 'preserve (default), lower or upper. Accepted: preserve, lower, upper.'}, 'from': {'type': 'string', 'description': 'Source script name (cyrillic), or auto (default). Accepted: cyrillic or auto.'}, 'text': {'type': 'string', 'description': 'Text to transliterate, at most 2048 characters. Accepted: at most 2048 characters.'}, 'standard': {'type': 'string', 'description': 'Romanisation standard: iso-9 (default; all ISO 9:1995 Cyrillic letters) or bgn-pcgn (BGN/PCGN Russian system, Russian letters only). Accepted: iso-9 or bgn-pcgn (Russian letters only) for cyrillic.'}}}
text_unicode
Unicode normalisation, script detection and confusable/homoglyph analysis
Analyse a string at the Unicode level: apply NFC, NFD, NFKC or NFKD, report which forms it is already in, list the scripts present (all Unicode scripts), and flag confusable and homoglyph characters — Cyrillic а in a Latin word, fullwidth or mathematical look-alikes, all-look-alike words — plus zero-width joiners, bidirectional overrides, invisible and blank characters. Returns per-character detail with code points, names and the ASCII character each imitates. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['text'], 'properties': {'form': {'enum': ['nfc', 'nfd', 'nfkc', 'nfkd'], 'type': 'string', 'description': 'Normalisation form to apply, default nfc. Accepted: nfc, nfd, nfkc or nfkd.'}, 'text': {'type': 'string', 'description': 'Text to analyse, at most 1024 characters. Accepted: at most 1024 characters.'}, 'detail': {'enum': ['summary', 'full'], 'type': 'string', 'description': 'summary (default) or full per-code-point detail (capped at 256 entries). Accepted: summary, full.'}}}
time_business-days
Business-day arithmetic with a caller-supplied weekend mask and holiday list
Business-day arithmetic with a caller-supplied calendar: add or subtract N working days from a date, or count the working days between two dates. The weekend is a weekday mask (Friday-Saturday and Sunday-only weeks work) and holidays are an explicit date list, so nothing depends on a stale holiday table. Returns the result date, the day count and the skipped dates with reasons. The skipped list is capped at 1,000 entries (skipped_truncated flags it); skipped_total is always exact. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['from'], 'properties': {'op': {'enum': ['add', 'count'], 'type': 'string', 'description': 'add (default) N business days to from, or count business days between from and to. Accepted: add, count.'}, 'to': {'type': 'string', 'description': 'End date YYYY-MM-DD, may precede from. Required when op=count. Accepted: a calendar date as YYYY-MM-DD.'}, 'days': {'type': 'string', 'description': 'Business days to add, -3650 to 3650. Required when op=add. Accepted: integer between -3650 and 3650.'}, 'from': {'type': 'string', 'description': 'Start date, YYYY-MM-DD. Accepted: a calendar date as YYYY-MM-DD.'}, 'weekend': {'type': 'string', 'description': 'Comma-separated weekday names or ISO numbers. Default sat,sun. Empty string = no weekend. Accepted: comma-separated weekday names (mon..sun) or ISO numbers 1-7.'}, 'holidays': {'type': 'string', 'description': 'Comma-separated YYYY-MM-DD holiday dates. Accepted: comma-separated YYYY-MM-DD dates, at most 2048 characters.'}, 'inclusive': {'enum': ['start', 'both', 'neither'], 'type': 'string', 'description': 'For op=count: start (default, half-open [from, to)), both or neither. Accepted: start, both, neither.'}}}
time_calendar
Gregorian conversion to Hijri, Hebrew and Japanese-era dates, plus Easter
Convert a Gregorian date to other calendar systems: Islamic (both the tabular civil calendar and the Umm al-Qura variant), Hebrew, Japanese imperial era, Republic of China, Buddhist and Persian. Also computes Easter Sunday for a year in both the Gregorian and Julian reckonings. Uses the calendar support built into the runtime, with the algorithm named in every response. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'op': {'enum': ['convert', 'easter'], 'type': 'string', 'description': 'convert (default) a Gregorian date, or easter for a year. Accepted: convert, easter.'}, 'to': {'type': 'string', 'description': 'Comma-separated calendar ids: islamic, islamic-umalqura, hebrew, japanese, roc, buddhist, persian. Default all. Accepted: islamic, islamic-umalqura, hebrew, japanese, roc, buddhist, persian.'}, 'date': {'type': 'string', 'description': 'Gregorian date YYYY-MM-DD. Required when op=convert. Accepted: a calendar date as YYYY-MM-DD.'}, 'rite': {'enum': ['western', 'eastern'], 'type': 'string', 'description': 'Easter reckoning: western (default) or eastern. Accepted: western, eastern.'}, 'year': {'type': 'string', 'description': 'Year for op=easter, 326-9999. Accepted: integer 326-9999.'}}}
time_dst
Next daylight-saving transitions for an IANA time zone
List the daylight-saving transitions for an IANA time zone over a date range: the exact instant of each shift, the offset before and after, and whether local clocks jump forward or back. Returns the current offset and DST state, and the next transition from a given instant. Zones without DST return an empty transition list rather than an error. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['zone'], 'properties': {'from': {'type': 'string', 'description': 'Start of the range: RFC 3339 or YYYY-MM-DD. Default now. Accepted: RFC 3339 timestamp or YYYY-MM-DD.'}, 'zone': {'type': 'string', 'description': 'IANA time zone id. Accepted: an IANA time zone id, e.g. Europe/Amsterdam.'}, 'years': {'type': 'string', 'description': 'Length of the range in years, 1-10. Default 2. Accepted: integer 1-10.'}}}
time_rrule
RFC 5545 RRULE expansion into concrete occurrence timestamps
Expand an RFC 5545 recurrence rule into concrete occurrence timestamps. Accepts an RRULE string with DTSTART, an IANA time zone, and optional EXDATE and RDATE lists, and returns up to 200 occurrences as both local wall-clock times and UTC instants. Supports FREQ, INTERVAL, COUNT, UNTIL, BYDAY, BYMONTHDAY, BYMONTH, BYSETPOS and WKST. Occurrences moved by a DST gap carry gap: true. Rules needing over 50,000 candidate evaluations are rejected. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['rrule', 'dtstart', 'zone'], 'properties': {'zone': {'type': 'string', 'description': 'IANA time zone id. Accepted: an IANA time zone id, e.g. Europe/Amsterdam.'}, 'after': {'type': 'string', 'description': 'RFC 3339 instant; skip occurrences before it. Accepted: RFC 3339 timestamp.'}, 'count': {'type': 'string', 'description': 'Maximum occurrences to return, 1-200. Default 20. Accepted: integer 1-200.'}, 'rdate': {'type': 'string', 'description': 'Comma-separated local datetimes to add. Accepted: at most 1024 characters.'}, 'rrule': {'type': 'string', 'description': 'RFC 5545 RRULE, e.g. FREQ=MONTHLY;BYDAY=-1FR;COUNT=6. Accepted: at most 512 characters.'}, 'exdate': {'type': 'string', 'description': 'Comma-separated local datetimes to exclude. Accepted: at most 1024 characters.'}, 'dtstart': {'type': 'string', 'description': 'First occurrence, YYYY-MM-DDTHH:MM:SS local to zone. Accepted: YYYY-MM-DDTHH:MM:SS.'}}}
time_zone
Instant to wall-clock time in an IANA zone, with offset and DST state
Convert an instant to wall-clock time in a named IANA time zone, or a wall-clock time in a zone back to an instant. Returns the local date and time, the UTC offset in ±HH:MM and seconds, the zone abbreviation, whether DST is in effect, the ISO week date, and the day of year. Handles the ambiguous and skipped local times at DST boundaries explicitly rather than guessing. Price: $0.05 per successful call, paid over x402 (USDC on Base).
Read only
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['zone'], 'properties': {'zone': {'type': 'string', 'description': 'IANA time zone id, e.g. Europe/Amsterdam. Accepted: an IANA time zone id, e.g. Europe/Amsterdam.'}, 'local': {'type': 'string', 'description': 'Wall-clock time YYYY-MM-DDTHH:MM[:SS] in zone, converted back to an instant. Mutually exclusive with instant. Accepted: YYYY-MM-DDTHH:MM[:SS].'}, 'instant': {'type': 'string', 'description': 'RFC 3339 timestamp or integer Unix seconds/milliseconds. Defaults to now. Mutually exclusive with local. Accepted: RFC 3339 timestamp or integer epoch.'}, 'ambiguous': {'enum': ['earlier', 'later', 'reject'], 'type': 'string', 'description': 'Only with local: which instant a repeated local time maps to. Default earlier. Accepted: earlier, later, reject.'}}}
History
Recent tool changes
Changed
id_national
Oct. 2, 2026, 2:40 a.m.
Added
num_allocate
Sept. 30, 2026, 2:40 a.m.
Added
num_stats
Sept. 30, 2026, 2:40 a.m.
Added
num_words
Sept. 30, 2026, 2:40 a.m.
Added
num_radix
Sept. 30, 2026, 2:40 a.m.
Added
ref_country
Sept. 30, 2026, 2:40 a.m.
Added
ref_currency
Sept. 30, 2026, 2:40 a.m.
Added
ref_airport
Sept. 30, 2026, 2:40 a.m.
Added
ref_nuts
Sept. 30, 2026, 2:40 a.m.
Added
chain_selector
Sept. 30, 2026, 2:40 a.m.
Added
chain_address
Sept. 30, 2026, 2:40 a.m.
Added
geo_distance
Sept. 30, 2026, 2:40 a.m.
Added
geo_polygon
Sept. 30, 2026, 2:40 a.m.
Added
geo_pluscode
Sept. 30, 2026, 2:40 a.m.
Added
geo_geohash
Sept. 30, 2026, 2:40 a.m.
Added
code_jwt
Sept. 30, 2026, 2:40 a.m.
Added
code_hash
Sept. 30, 2026, 2:40 a.m.
Added
code_semver
Sept. 30, 2026, 2:40 a.m.
Added
code_idn
Sept. 30, 2026, 2:40 a.m.
Added
code_url
Sept. 30, 2026, 2:40 a.m.
Added
text_similarity
Sept. 30, 2026, 2:40 a.m.
Added
text_unicode
Sept. 30, 2026, 2:40 a.m.
Added
text_transliterate
Sept. 30, 2026, 2:40 a.m.
Added
text_slug
Sept. 30, 2026, 2:40 a.m.
Added
time_calendar
Sept. 30, 2026, 2:40 a.m.
Added
time_rrule
Sept. 30, 2026, 2:40 a.m.
Added
time_business-days
Sept. 30, 2026, 2:40 a.m.
Added
time_dst
Sept. 30, 2026, 2:40 a.m.
Added
time_zone
Sept. 30, 2026, 2:40 a.m.
Added
id_iban-build
Sept. 30, 2026, 2:40 a.m.
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