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tools

com.fluentedi/tools
Business & Operations Developer Tools Public & reachable MCP 2026-07-28

What this MCP does

Provides general-purpose utilities for document extraction, HTTP checks, JSON processing, time and math operations, WHOIS, cryptography, and X12 EDI.

Capabilities

Tools

19 tools
cron_next
Validate a cron expression, explain it in English, and list its next run times.
Parses a standard 5-field cron expression (or 6-field with leading seconds, or a macro like @daily), validates it, describes it in plain English, and computes the next run times in a given timezone with daylight-saving handled. Use it before writing a schedule to config — cron's day-of-month/day-of-week OR-semantics and step syntax are a common source of silently wrong schedules.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['expression'], 'properties': {'from': {'type': 'string', 'default': 'now', 'description': 'Compute run times after this instant instead of now.'}, 'count': {'type': 'integer', 'default': 5, 'maximum': 100, 'minimum': 1, 'description': 'How many upcoming run times to return.'}, 'timezone': {'type': 'string', 'default': 'UTC', 'examples': ['America/New_York'], 'description': 'IANA timezone the schedule runs in.'}, 'expression': {'type': 'string', 'examples': ['0 9 * * 1-5'], 'maxLength': 200, 'description': 'Cron expression, e.g. "*/15 * * * *", "0 9 * * 1-5", "@daily".'}}, 'additionalProperties': False}
doc_extract
Extract the text of a PDF, Word, Excel or other document as markdown or plain text.
Converts a document to markdown or plain text: pass a public URL or the file itself as base64, and get back the content with headings, tables and lists preserved, at a fraction of the tokens that rendered pages cost. Use it when a harness has no native reader for the format — .docx, .xlsx, .odt and .numbers rarely have one — when a document is only a URL away, or when a long PDF's text matters and its layout does not. Handles PDF (.pdf), Word (.docx), Excel (.xlsx, .xlsm, .xlsb, .xls), OpenDocument (.odt, .ods), Apple Numbers, CSV, HTML, XML, and plain-text formats such as .txt and .md. The format is detected from magic bytes, not trusted from the file name, so a PDF served from a .php URL still converts. Two honest limits: a scanned PDF with no text layer has nothing to extract (this is conversion, not OCR), and legacy binary .doc and .ppt files are not readable — resave them as .docx or .pptx. Images are refused rather than described. Documents up to 10 MB.
Read only Open world Idempotent
Input schema 
{'type': 'object', 'required': [], 'properties': {'url': {'type': 'string', 'examples': ['https://arxiv.org/pdf/1706.03762'], 'maxLength': 4000, 'description': 'Public URL of the document to fetch and convert.'}, 'base64': {'type': 'string', 'default': '', 'maxLength': 14000000, 'description': 'The file content as base64 (or a data: URI) instead of a URL, for documents not publicly reachable. Up to 10 MB decoded.'}, 'format': {'enum': ['markdown', 'text'], 'type': 'string', 'default': 'markdown', 'description': 'Output style: markdown keeps headings, tables and lists; text strips them.'}, 'filename': {'type': 'string', 'default': '', 'maxLength': 300, 'description': 'Original file name, e.g. "report.docx". Only needed when the format cannot be detected from the URL or the bytes.'}, 'max_chars': {'type': 'integer', 'default': 200000, 'maximum': 2000000, 'minimum': 100, 'description': 'Truncate the extracted content beyond this many characters.'}, 'timeout_ms': {'type': 'integer', 'default': 15000, 'maximum': 30000, 'minimum': 1000, 'description': 'Fetch timeout in milliseconds when url is used.'}}, 'additionalProperties': False}
domain_lookup
WHOIS for a domain or IP: registration and expiry dates, registrar, nameservers, status — or the network that owns an address.
Answers the questions WHOIS used to answer, over RDAP — the structured protocol the registries themselves now serve — with no key and no scraping: who registered a domain, when it expires, which registrar and nameservers it uses, whether transfers are locked, and whether DNSSEC is signed. Give it an IP address instead and it returns the owning network: name, CIDR range, and the responsible registry. A domain that does not resolve in RDAP is reported as likely available to register — an answer, not an error. These are live registry facts that no training corpus can supply: registrations, expiries and transfers happen daily, and an agent that guesses at them guesses wrong.
Read only Open world Idempotent
Input schema 
{'type': 'object', 'required': ['query'], 'properties': {'query': {'type': 'string', 'examples': ['example.com'], 'maxLength': 253, 'description': 'Domain name or IP address to look up.'}}, 'additionalProperties': False}
edi_build
Generate a valid X12 856 ASN or 850 purchase order from JSON, with correct HL pointers and envelope counts.
Compiles structured JSON into standards-valid X12. The parts that get documents rejected are exactly the parts a language model cannot hold in its head: the 856 hierarchy needs sequential HL IDs where every level names its parent's ID, and on a multi-carton, multi-SKU shipment that bookkeeping goes wrong silently. The ISA header is fixed-width — 106 characters exactly, every element space-padded to size — and one character out crashes the receiver's translator. Segment counts in SE01, CTT01, GE01 and IEA01 must agree with what was actually emitted. All of that is computed here rather than written by hand.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['data'], 'properties': {'data': {'type': 'object', 'description': 'Document content. For 856: {shipment_id, ship_date, orders:[{po_number, packs:[{sscc, items:[{upc, quantity, unit}]}]}], parties:[{role,name,id}]}. For 850: {po_number, order_date, lines:[{quantity, unit, unit_price, upc, description}], parties:[...]}.'}, 'document': {'enum': ['856', '850'], 'type': 'string', 'default': '856', 'description': 'Transaction set to build.'}, 'sender_id': {'type': 'string', 'default': 'SENDER', 'maxLength': 15, 'description': 'ISA06 sender identifier.'}, 'timestamp': {'type': 'string', 'default': '', 'description': 'ISO instant for the envelope date/time. Defaults to now.'}, 'receiver_id': {'type': 'string', 'default': 'RECEIVER', 'maxLength': 15, 'description': 'ISA08 receiver identifier.'}, 'control_number': {'type': 'integer', 'default': 1, 'minimum': 1, 'description': 'Interchange control number (ISA13). Also seeds GS06 and ST02.'}, 'test_indicator': {'type': 'boolean', 'default': True, 'description': 'Mark the interchange as test (ISA15 = T) rather than production (P).'}, 'include_envelope': {'type': 'boolean', 'default': True, 'description': 'Wrap the transaction set in ISA/GS ... GE/IEA.'}, 'sender_qualifier': {'type': 'string', 'default': 'ZZ', 'maxLength': 2, 'description': 'ISA05 qualifier, e.g. ZZ, 01 (DUNS), 12 (phone).'}, 'receiver_qualifier': {'type': 'string', 'default': 'ZZ', 'maxLength': 2, 'description': 'ISA07 qualifier.'}}, 'additionalProperties': False}
edi_parse
Parse an X12 EDI document (850, 856, 810, 855, 997 and others) into structured JSON.
Reads a raw ASC X12 interchange and returns it as JSON: delimiters taken from the ISA header, the ISA/GS/ST envelope decoded, every segment split into named elements, and a document-specific summary - purchase order lines for an 850, the HL shipment hierarchy and SSCCs for an 856, invoice totals for an 810. EDI is positional and delimiter-sensitive, and unreadable without a spec table; reading it by inspection produces confident nonsense, which is why this is a tool rather than a prompt.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['input'], 'properties': {'input': {'type': 'string', 'maxLength': 2000000, 'description': 'Raw X12 EDI text, beginning with ISA where available.'}, 'include_segments': {'type': 'boolean', 'default': True, 'description': 'Include the flat segment list alongside the summary.'}}, 'additionalProperties': False}
edi_validate
Check an X12 document's envelope integrity and 856 HL hierarchy for the errors that cause rejections.
Runs the structural checks a trading partner runs before rejecting a file: control numbers matching between the ISA/IEA, GS/GE and ST/SE header and trailer pairs, declared counts matching actual counts, and - for an 856 - the HL hierarchy. HL faults are the usual cause of ASN rejections and chargebacks: a parent ID naming no existing node, a duplicate HL01, an unknown level code, a missing carton level. Every finding names the segment and states what the value should have been.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['input'], 'properties': {'input': {'type': 'string', 'maxLength': 2000000, 'description': 'Raw X12 EDI text.'}, 'require_levels': {'type': 'array', 'items': {'type': 'string'}, 'default': [], 'description': 'HL level codes that must be present in an 856, e.g. ["S","O","P","I"] for a pack-level ASN.'}}, 'additionalProperties': False}
hash
Hash or HMAC-sign text with MD5, SHA-1, SHA-256/384/512 or CRC32.
Computes cryptographic digests and HMAC signatures. Returns hex and base64 at once, so a webhook signature can be compared in whichever encoding the provider uses. MD5 and CRC32 are included for checksums and legacy fixtures; they are not secure for authentication.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['input'], 'properties': {'input': {'type': 'string', 'examples': ['hello world'], 'maxLength': 200000, 'description': 'Text to hash.'}, 'hmac_key': {'type': 'string', 'default': '', 'maxLength': 4096, 'description': 'When set, computes HMAC-<algorithm> with this key instead of a plain digest. Not supported for md5/crc32.'}, 'algorithms': {'type': 'array', 'items': {'type': 'string'}, 'default': ['sha256'], 'examples': [['sha256', 'md5']], 'description': 'Any of: md5, sha1, sha256, sha384, sha512, crc32.'}, 'input_encoding': {'enum': ['utf8', 'hex', 'base64'], 'type': 'string', 'default': 'utf8', 'description': 'How to read `input` into bytes.'}}, 'additionalProperties': False}
http_assert
Verify a URL actually returns what you expected — status, headers, JSON values — and return a pass/fail proof.
The difference between an agent believing it succeeded and knowing it did. http.check tells you a URL is alive; this tells you it is correct. Assert the status, response headers, values at JSONPath expressions, substrings in the body and a latency ceiling, and get back one boolean plus a per-check breakdown showing expected against actual. An agent that has just deployed, migrated or reconfigured something can prove the outcome rather than reporting the absence of an error, which is the usual way agents claim a success they have not actually achieved.
Read only Open world Idempotent
Input schema 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'examples': ['https://fluentedi.com/health'], 'maxLength': 4000, 'description': 'URL to call.'}, 'body': {'type': 'string', 'default': '', 'maxLength': 100000, 'description': 'Request body for POST, PUT and PATCH.'}, 'method': {'enum': ['GET', 'HEAD', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'], 'type': 'string', 'default': 'GET', 'description': 'HTTP method.'}, 'headers': {'type': 'object', 'default': {}, 'description': 'Request headers to send.'}, 'timeout_ms': {'type': 'integer', 'default': 10000, 'maximum': 30000, 'minimum': 1000, 'description': 'Request timeout.'}, 'expect_json': {'type': 'object', 'default': {}, 'description': 'JSONPath expressions mapped to required values, e.g. {"$.status":"ok","$.items[0].id":1}.'}, 'expect_status': {'default': '', 'description': 'Required status: a number, an array of acceptable numbers, or a class such as "2xx".'}, 'expect_headers': {'type': 'object', 'default': {}, 'description': 'Response headers that must exist and contain a substring, e.g. {"content-type":"json"}.'}, 'max_response_ms': {'type': 'integer', 'default': 0, 'maximum': 30000, 'minimum': 0, 'description': 'Fail if the response takes longer than this. 0 disables the check.'}, 'expect_body_contains': {'type': 'array', 'items': {'type': 'string'}, 'default': [], 'description': 'Substrings that must appear in the body.'}}, 'additionalProperties': False}
http_check
Check whether a URL is still live: status, redirect chain, and whether a citation still says what it said.
Resolves a URL and reports what actually happens to it — final status, the full redirect chain, content type and page title. Link rot is faster than it feels: one agent measured seven dead URLs out of 286 across fourteen days. This handles the three cases a naive checker gets wrong: an arXiv v1 to v2 redirect is a version change, not a break; a 403 is a blocked crawler, not a dead page; and a DOI can return 200 while the page behind it is now a retraction notice, which is the worst case because a simple status check passes and the reader gets something else. Response bodies are never returned — only status, headers, title and flags.
Read only Open world Idempotent
Input schema 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'examples': ['https://arxiv.org/abs/1706.03762'], 'maxLength': 4000, 'description': 'URL to check.'}, 'timeout_ms': {'type': 'integer', 'default': 8000, 'maximum': 20000, 'minimum': 1000, 'description': 'Per-request timeout in milliseconds.'}, 'max_redirects': {'type': 'integer', 'default': 5, 'maximum': 10, 'minimum': 0, 'description': 'How many redirects to follow.'}}, 'additionalProperties': False}
json_query
Extract values from a JSON document with a JSONPath expression.
Runs a JSONPath query and returns the matching values with their concrete paths. Supports property access, array indexing (including negative indices), slices, wildcards, recursive descent (`..`) and filters (`[?(@.price > 10)]`). Pull three fields out of a large API response without carrying the whole document through context.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['json', 'path'], 'properties': {'json': {'maxLength': 1000000, 'description': 'The JSON document, as an object or a JSON string.'}, 'path': {'type': 'string', 'examples': ['$.items[*].id'], 'maxLength': 1000, 'description': 'JSONPath expression, e.g. "$.items[*].id" or "$..author".'}, 'first_only': {'type': 'boolean', 'default': False, 'description': 'Return only the first match.'}}, 'additionalProperties': False}
json_repair
Repair malformed JSON and pinpoint the exact line and column when it cannot be repaired.
Takes JSON that almost parses and makes it parse: markdown code fences, prose wrapped around the object, trailing commas, single or smart quotes, unquoted keys, Python True/False/None, comments, NaN, and brackets left open by a truncated response. Every change is reported, so the caller learns what its generator got wrong rather than silently depending on a fixer. When the input cannot be salvaged it returns the precise line, column and a caret pointing at the offending character — which is what makes the next attempt succeed instead of guessing.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['input'], 'properties': {'input': {'type': 'string', 'maxLength': 1000000, 'description': 'The malformed JSON text.'}, 'close_truncated': {'type': 'boolean', 'default': True, 'description': 'Close brackets left open by a cut-off response.'}}, 'additionalProperties': False}
math_eval
Evaluate a mathematical expression exactly.
Evaluates arithmetic with correct operator precedence, parentheses, exponentiation, factorials, named variables and 30+ functions. Language models perform arithmetic by pattern-matching and quietly get long multiplications and compounding wrong; this computes the number instead of predicting it.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['expression'], 'properties': {'precision': {'type': 'integer', 'default': 10, 'maximum': 15, 'minimum': 0, 'description': 'Decimal places to round the formatted result to.'}, 'variables': {'type': 'object', 'default': {}, 'description': 'Named values usable in the expression, e.g. {"rate": 0.07}.'}, 'expression': {'type': 'string', 'examples': ['sqrt(2) * 10^3'], 'maxLength': 2000, 'description': 'Expression to evaluate, e.g. "(1+0.07)^30 * 1000".'}}, 'additionalProperties': False}
time_convert
Convert a timestamp between timezones.
Converts one instant into any number of timezones, handling daylight saving transitions correctly. Naive inputs (no Z or offset) are read as wall-clock time in `from`; inputs carrying an offset are absolute.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['to'], 'properties': {'to': {'type': 'array', 'items': {'type': 'string'}, 'default': ['UTC'], 'examples': [['Asia/Tokyo', 'America/New_York']], 'description': 'Target timezones.'}, 'from': {'type': 'string', 'default': 'UTC', 'examples': ['America/New_York'], 'description': 'Timezone the input is expressed in (used only when it carries no offset).'}, 'time': {'type': 'string', 'default': 'now', 'examples': ['2026-08-22T14:30:00'], 'description': 'The instant to convert: ISO 8601, a naive wall-clock time, a unix timestamp, or "now".'}}, 'additionalProperties': False}
time_diff
Duration between two dates, in every unit.
Computes the elapsed time between two instants: exact totals in each unit, a calendar breakdown (years/months/days rather than 'thirteen and a half months'), the count of weekdays in between, and a human phrase. Negative when `to` precedes `from`.
Read only Idempotent
Input schema 
{'type': 'object', 'required': [], 'properties': {'to': {'type': 'string', 'default': 'now', 'description': 'End instant: ISO 8601, unix timestamp, or "now".'}, 'from': {'type': 'string', 'default': 'now', 'examples': ['1990-05-14'], 'description': 'Start instant: ISO 8601, unix timestamp, or "now".'}, 'timezone': {'type': 'string', 'default': 'UTC', 'examples': ['America/New_York'], 'description': 'IANA timezone identifier, e.g. "UTC", "America/New_York", "Asia/Kolkata", "Europe/London".'}}, 'additionalProperties': False}
time_now
Current date and time in any IANA timezone.
Returns the authoritative current time in one or more timezones, with UTC offset, ISO week number, day of year, weekend flag, and daylight-saving state. Use this instead of guessing the date: a language model has no clock, and its training cutoff is not today.
Read only Idempotent
Input schema 
{'type': 'object', 'required': [], 'properties': {'also': {'type': 'array', 'items': {'type': 'string'}, 'default': [], 'examples': [['Asia/Tokyo', 'Europe/Berlin']], 'description': 'Additional timezones to report alongside the primary one.'}, 'timezone': {'type': 'string', 'default': 'UTC', 'examples': ['America/New_York'], 'description': 'IANA timezone identifier, e.g. "UTC", "America/New_York", "Asia/Kolkata", "Europe/London".'}}, 'additionalProperties': False}
time_window
Test whether an instant falls inside a time window, and by how much it misses.
Answers the questions a deadline actually poses: is this instant inside the window, how long until it opens or closes, and if it is outside, by how much. Optionally compares two windows for overlap. A window comparison that silently succeeds against the wrong bounds is a failure mode that does not raise an error anywhere — the ship window is missed, or the ASN is late, and the only symptom is a chargeback later. This computes the boundary instead of assuming it.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['start'], 'properties': {'end': {'type': 'string', 'default': '', 'description': 'Window closes at this instant. Omit if using `duration_hours`.'}, 'start': {'type': 'string', 'examples': ['2026-08-24T09:00:00Z'], 'description': 'Window opens at this instant: ISO 8601, unix timestamp, or "now".'}, 'instant': {'type': 'string', 'default': 'now', 'description': 'The instant to test against the window.'}, 'timezone': {'type': 'string', 'default': 'UTC', 'examples': ['America/New_York'], 'description': 'IANA timezone used to read naive inputs and render output.'}, 'compare_end': {'type': 'string', 'default': '', 'description': 'End of the second window.'}, 'compare_start': {'type': 'string', 'default': '', 'description': 'Start of a second window, to test for overlap with the first.'}, 'duration_hours': {'type': 'number', 'default': 0, 'description': 'Window length in hours, used when `end` is omitted.'}}, 'additionalProperties': False}
tool_call
Invoke any tool by name, including ones not in the default listing.
Dispatches to any tool in the catalogue. Most clients cap how many tools they will hold at once — Cursor drops everything past roughly forty across all servers combined — so only a core set is listed by default. Everything else is reachable here. Find a name with tool.search, check its shape with tool.describe, then call it through this.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['tool'], 'properties': {'args': {'type': 'object', 'default': {}, 'description': 'Arguments for that tool.'}, 'tool': {'type': 'string', 'examples': ['gs1.checkdigit'], 'maxLength': 100, 'description': 'Name of the tool to invoke.'}}, 'additionalProperties': False}
tool_describe
Get the full parameter schema and worked examples for one tool.
Returns everything needed to call a tool correctly: its complete JSON Schema, every parameter with type and default, and examples known to work. Pair it with tool.search — search to find the name, describe to learn the shape, then call. This exists so the catalogue does not have to be loaded into context up front.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['name'], 'properties': {'name': {'type': 'string', 'examples': ['time.window'], 'maxLength': 100, 'description': 'Tool name, e.g. "time.window". Underscores and slashes are accepted too.'}}, 'additionalProperties': False}
tool_search
Find the right tool for a task by describing it in plain language.
Searches every tool by name, summary, description and keywords, and returns the closest matches with their endpoints and parameters. Use this instead of loading the whole catalogue: describe the job ("check whether a shipment is late", "fix broken JSON", "validate a barcode check digit") and call what comes back. Each result says why it matched, so a wrong match is obvious rather than plausible.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['q'], 'properties': {'q': {'type': 'string', 'examples': ['check if a date falls inside a shipping window'], 'maxLength': 300, 'description': 'What you are trying to do, in plain language.'}, 'limit': {'type': 'integer', 'default': 5, 'maximum': 25, 'minimum': 1, 'description': 'Maximum matches to return.'}, 'detail': {'type': 'boolean', 'default': False, 'description': 'Include full parameter schemas and worked examples for each match.'}}, 'additionalProperties': False}
History

Recent tool changes

Added
tool_call
Sept. 17, 2026, 12:34 p.m.
Added
tool_describe
Sept. 17, 2026, 12:34 p.m.
Added
tool_search
Sept. 17, 2026, 12:34 p.m.
Added
edi_build
Sept. 17, 2026, 12:34 p.m.
Added
edi_validate
Sept. 17, 2026, 12:34 p.m.
Added
edi_parse
Sept. 17, 2026, 12:34 p.m.
Added
domain_lookup
Sept. 17, 2026, 12:34 p.m.
Added
http_assert
Sept. 17, 2026, 12:34 p.m.
Added
http_check
Sept. 17, 2026, 12:34 p.m.
Added
math_eval
Sept. 17, 2026, 12:34 p.m.
Added
hash
Sept. 17, 2026, 12:34 p.m.
Added
doc_extract
Sept. 17, 2026, 12:34 p.m.
Added
json_repair
Sept. 17, 2026, 12:34 p.m.
Added
json_query
Sept. 17, 2026, 12:34 p.m.
Added
cron_next
Sept. 17, 2026, 12:34 p.m.
Added
time_window
Sept. 17, 2026, 12:34 p.m.
Added
time_diff
Sept. 17, 2026, 12:34 p.m.
Added
time_convert
Sept. 17, 2026, 12:34 p.m.
Added
time_now
Sept. 17, 2026, 12:34 p.m.
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