AllRatesToday exchange rates (hosted)

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    "title": "AllRatesToday exchange rates (hosted)",
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  "tools": [
    {
      "name": "get_exchange_rate",
      "title": "Get live exchange rate",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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.…"
    },
    {
      "name": "get_historical_rates",
      "title": "Get historical rate time-series",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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=…"
    },
    {
      "name": "get_rates_authenticated",
      "title": "Get multi-target or point-in-time rates",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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, ta…"
    },
    {
      "name": "list_currencies",
      "title": "List supported currencies",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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+ IS…"
    },
    {
      "name": "list_central_banks",
      "title": "List covered central banks & tax authorities",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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 — 123 central banks plus 6 tax authorities (HMRC, US…"
    },
    {
      "name": "get_official_rates",
      "title": "Get a bank's official published rates",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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,…"
    },
    {
      "name": "get_official_rate_history",
      "title": "Get a bank's official rate history",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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 }] }. G…"
    },
    {
      "name": "compare_official_rates",
      "title": "Compare one pair across every bank",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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 p…"
    },
    {
      "name": "get_publication_calendar",
      "title": "Get a bank's publication calendar",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "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,…"
    },
    {
      "name": "get_reference_rate",
      "title": "Get the Daily Reference Rate (16:00 London)",
      "readOnly": true,
      "destructive": false,
      "openWorld": true,
      "description": "AllRatesToday's once-a-day, never-revised mid-market rate: the per-currency median of five samples in a five-minute window centred on 16:00 London, published each business day. Use it when the user n…"
    },
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      "readOnly": false,
      "destructive": false,
      "openWorld": true,
      "description": "Self-issue an AllRatesToday API key with 100 lifetime calls, valid 7 days, with no account and no email. Use it when another tool answered \"needs an API key\" and the user wants real-time rates, histo…"
    }
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