MCP Server
AllRatesToday exchange rates (hosted)
com.allratestoday/mcp
What this MCP does
Provides live, historical, and official central-bank exchange rates, currency metadata, and rate comparisons.
Capabilities
Tools
9
tools
compare_official_rates
Compare one pair across every bank
One currency pair across ALL institutions at once — 'what does each central bank say USD/EUR is?', 'spread between official USD/LKR rates'. Returns every covered bank's latest official rate for the pair plus { min, max, median, spread_bps } over fresh sources. Banks are never mixed: derived rates are cross-computed within each bank's own table. API key required (free tier). Methodology: https://allratestoday.com/official-rates-methodology/
Read only
Open world
Input schema
{'type': 'object', 'required': ['source', 'target'], 'properties': {'source': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}, 'target': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}}}
get_exchange_rate
Get live exchange rate
Use this when the user asks 'what is X in Y?', 'convert X to Y', 'current rate of EUR/USD', or any single fiat-to-fiat exchange rate question. Returns { rate, source } meaning 1 source = rate target. Without an API key it answers from the official ECB daily reference table (~30 majors) and says so in `note` — relay the `rate_date`. With a key it is the real-time mid-market rate for 160+ currencies. For several targets at once use get_rates_authenticated; for a time series use get_historical_rates; for a specific institution's official rate use get_official_rates.
Read only
Open world
Input schema
{'type': 'object', 'required': ['source', 'target'], 'properties': {'source': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}, 'target': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}}}
get_historical_rates
Get historical rate time-series
Fixed-window time series ending now: 'how has EUR/USD moved this week', 'last month of GBP/JPY', '1-year AUD/USD'. Returns { source, target, period, data: [{ date, rate, timestamp }] }. Sampling: 1d=hourly, 7d/30d=daily, 1y=weekly. Requires an API key (free tier). For a specific past datetime use get_rates_authenticated with `time`.
Read only
Open world
Input schema
{'type': 'object', 'required': ['source', 'target'], 'properties': {'period': {'enum': ['1d', '7d', '30d', '1y'], 'type': 'string', 'description': "Lookback window ending now. Defaults to '7d'."}, 'source': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}, 'target': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}}}
get_official_rate_history
Get a bank's official rate history
Date-by-date series of one bank's OFFICIAL rates — 'ECB USD rate for every day of 2025', 'how did the CBSL rate move last quarter'. Returns { series: [{ date, rate, rate_type, derived, method }] }. Give either `symbol` (vs the bank's home currency) or a source+target pair; from/to default to the last year. API key with a paid plan, BILLED BY VOLUME: one call per month of history covered — keep ranges narrow. For publication dates without values use get_publication_calendar.
Read only
Open world
Input schema
{'type': 'object', 'required': ['bank'], 'properties': {'to': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'End date. Defaults to today.'}, 'bank': {'type': 'string', 'pattern': '^[A-Za-z0-9-]{2,20}$', 'description': "Bank/authority code as returned by list_central_banks (lowercase, e.g. 'ecb', 'fed', 'boj', 'hmrc', 'cbsl'). Codes are short abbreviations of the institution, not country codes."}, 'from': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Start date. Defaults to one year ago.'}, 'source': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}, 'symbol': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "One currency vs the bank's home currency, e.g. 'USD'. Alternative to source+target."}, 'target': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}}}
get_official_rates
Get a bank's official published rates
OFFICIAL rates a named institution published — 'what is the ECB rate for USD?', 'Bank of Japan rate on 2026-03-14', 'HMRC rate for invoicing'. These are the fixed, citable rates for compliance, tax, customs and accounting — NOT live market rates. Omit `date` for the newest published table (no API key needed); give `date` (API key, paid plan) for the table in force that day — weekends/holidays roll back to the last published date and the response's `rate_date` says which. Omit source/target for the full table; give both for one pair — cross-computed inside the bank's own table when not directly published, flagged `derived`. Always cite the returned `rate_date`.
Read only
Open world
Input schema
{'type': 'object', 'required': ['bank'], 'properties': {'bank': {'type': 'string', 'pattern': '^[A-Za-z0-9-]{2,20}$', 'description': "Bank/authority code as returned by list_central_banks (lowercase, e.g. 'ecb', 'fed', 'boj', 'hmrc', 'cbsl'). Codes are short abbreviations of the institution, not country codes."}, 'date': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Optional YYYY-MM-DD. Omit for the latest table.'}, 'source': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': 'Optional. With target, narrows to one pair.'}, 'target': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': 'Optional. With source, narrows to one pair.'}}}
get_publication_calendar
Get a bank's publication calendar
Which dates a bank actually published a rate table — 'did the ECB publish on 2026-01-01?', 'how often does the US Treasury publish?'. Dates only, no values, so it is on every plan (API key required, free tier). Give `year` or a from/to range; large ranges are capped and flagged `truncated`.
Read only
Open world
Input schema
{'type': 'object', 'required': ['bank'], 'properties': {'to': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Calendar date, YYYY-MM-DD.'}, 'bank': {'type': 'string', 'pattern': '^[A-Za-z0-9-]{2,20}$', 'description': "Bank/authority code as returned by list_central_banks (lowercase, e.g. 'ecb', 'fed', 'boj', 'hmrc', 'cbsl'). Codes are short abbreviations of the institution, not country codes."}, 'from': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Calendar date, YYYY-MM-DD.'}, 'year': {'type': 'string', 'pattern': '^\\d{4}$', 'description': "Whole calendar year, e.g. '2026'."}}}
get_rates_authenticated
Get multi-target or point-in-time rates
One source against several targets in a single call ('USD vs EUR, GBP, JPY'), or the rate at a specific past datetime, optionally bucketed by hour/day/week/month. Returns { rates: [{ rate, source, target, time }] }. Requires an API key (free tier).
Read only
Open world
Input schema
{'type': 'object', 'required': ['source', 'target'], 'properties': {'time': {'type': 'string', 'description': "ISO 8601 UTC timestamp, e.g. '2025-03-14T12:00:00Z'. Omit for latest."}, 'group': {'enum': ['hour', 'day', 'week', 'month'], 'type': 'string', 'description': 'Aggregation bucket. Omit for raw output.'}, 'source': {'type': 'string', 'pattern': '^[A-Za-z]{3}$', 'description': "ISO 4217 currency code, 3 letters, case-insensitive (e.g. 'USD', 'EUR', 'GBP'). Fiat only — no crypto, no commodities."}, 'target': {'type': 'string', 'pattern': '^[A-Za-z]{3}(,[A-Za-z]{3})*$', 'description': "One or more ISO 4217 codes, comma-separated, no spaces: 'EUR' or 'EUR,GBP,JPY'."}}}
list_central_banks
List covered central banks & tax authorities
Call this FIRST when you need a bank code, or for 'which central banks do you cover?' / 'do you have rates from X?'. Returns every covered source — 121 central banks plus 3 tax authorities (HMRC, US Treasury, Swiss BAZG) — with `code` (what every other official-rates tool takes as `bank`), name, latest publication date and whether it is behind schedule. No API key needed.
Read only
Open world
Input schema
{'type': 'object', 'properties': {}}
list_currencies
List supported currencies
Call this when unsure whether a currency code is supported, or for 'what currencies do you support?' / 'what is the symbol for X?'. Returns { currencies: [{ code, name, symbol }], count } for 150+ ISO 4217 fiat currencies. No API key needed; cheap to call.
Read only
Open world
Input schema
{'type': 'object', 'properties': {}}
History
Recent tool changes
Changed
list_central_banks
Sept. 29, 2026, 3:01 a.m.
Changed
list_central_banks
Sept. 21, 2026, 2:59 a.m.
Added
get_publication_calendar
Sept. 17, 2026, 12:33 p.m.
Added
compare_official_rates
Sept. 17, 2026, 12:33 p.m.
Added
get_official_rate_history
Sept. 17, 2026, 12:33 p.m.
Added
get_official_rates
Sept. 17, 2026, 12:33 p.m.
Added
list_central_banks
Sept. 17, 2026, 12:33 p.m.
Added
list_currencies
Sept. 17, 2026, 12:33 p.m.
Added
get_rates_authenticated
Sept. 17, 2026, 12:33 p.m.
Added
get_historical_rates
Sept. 17, 2026, 12:33 p.m.
Added
get_exchange_rate
Sept. 17, 2026, 12:33 p.m.
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