ECB Currency Rates Converter

x402

ECB Currency Rates Converter is a paid API for AI agents from ca-tax-api-mainnet.lxtap.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-23).

Converts a currency amount between two ISO 4217 currencies using the European Central Bank daily reference rate, returning the rate used, converted result, and effective rate date.

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call data for AI agents, paid in USDC on Base with x402: token risk checks (rug check) on Base, Ethereum, Arbitrum, Optimism, Polygon and Solana, onchain reads (balances, transactions, gas, contracts, NFTs, whale trades, new pools, ENS and Basenames), ECB exchange rates, and Canadian sales tax and business days.

Output

Returns the ECB reference exchange rate used (as a decimal), the converted amount in the target currency, and the effective date of the rate. If no date is specified, the latest available ECB rate is used.

Example use cases

Historical invoice reconciliation

“I need to convert 8500 British pounds to euros at the ECB reference rate for 2023-11-30 — what rate was used and what's the euro amount?”

Live travel budget estimate

“How much is 2000 US dollars in Japanese yen at today's ECB rate?”

Cross-currency reporting

“Convert 50000 Canadian dollars to Swiss francs using the ECB official rate from 2024-01-15 — I need the rate and the resulting amount.”

Technical details

Endpoint

GEThttps://ca-tax-api-mainnet.lxtap.workers.dev/fx/convert?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need official, authoritative ECB reference rates rather than commercial or real-time market rates. Ideal for accounting, compliance, invoicing, and reporting use cases where ECB rates are contractually or legally required. Prefer over generic forex APIs when the ECB daily fixing specifically is needed, or when a historical ECB rate for a past date is required.

Side effects

Unsupported currency code (ECB only publishes rates for ~30 major currencies against EUR) — returns error or empty result
Date provided is a weekend or ECB holiday when no rate is published — may return closest prior business day rate or an error
Malformed currency code (not 3 alpha characters) — schema validation error
Amount formatted incorrectly (non-numeric string) — schema validation error
ECB data feed unavailable or delayed — may return stale or missing rate

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "to": "CAD",
    "date": "2026-10-22",
    "from": "USD",
    "rate": 1.4034,
    "amount": 250,
    "result": 350.85,
    "source": "European Central Bank reference rates via frankfurter.dev"
  }
}

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