Convert currencies and crypto at current rates
Two calls cover it: official ECB reference rates for everyday currencies and historical dates, from $0.002, and live crypto against fiat (or crypto to crypto), from $0.001.
Add it to Claude or Cursor free (30 seconds) See a live answer first
Which one to use
- Everyday currencies, and past dates: the ECB rates ($0.002) give the European Central Bank's official euro reference rates for about 30 currencies, converted to any base (GBP, USD, EUR and more), for today or any date back to 1999. Good for invoices, reports and month-end.
- Crypto: the crypto converter ($0.001) converts BTC, ETH, SOL, USDC and hundreds more against USD, GBP, EUR and 150+ currencies, and cross-checks the rate against a second exchange, showing the gap.
Reading the numbers
ECB rates are published once each working day (around 16:00 Central European Time) and are reference rates, not rates you can trade at. For a date without a rate (a weekend), the last published rate is used.
Crypto rates are indicative mid-market prices, and the exchange you use will add its own spread and fees. This is information, not financial advice.
Use it from your AI assistant or code
Add it to Claude or Cursor and ask "What was £2,500 in euros at the ECB rate on 30 June?" or "How much is 0.5 BTC in pounds right now?". Or call it directly and pay per call with x402 or prepaid credits.
curl -i "https://aayatai.com/eu/fx?base=GBP&symbols=USD%2CEUR%2CJPY"Live example
Live ECB rates: 1 pound in dollars, euros and yen
Free, no sign-up: a real answer from our own health check for this input. Your own questions cost $0.002 a call, and the first 20 a day are free in Claude or Cursor.
https://aayatai.com/eu/fx?base=GBP&symbols=USD%2CEUR%2CJPY Ask your AI assistant
Once it's added, just ask in plain words. For example:
What was £2,500 in euros at the ECB rate on 30 June?Get a free key and add it All tools and prices
Tools on this page
4 of these 4 are in the free trial (20 calls a day over MCP). Prices come straight from our live price list; failed calls are never charged.
| Tool | What it answers | Price per call |
|---|---|---|
| EU FX | Official ECB euro foreign-exchange reference rates for about 30 currencies, converted to any base (GBP, USD, EUR...). | $0.002free to try |
| Convert crypto to money and back | Convert between crypto and fiat at live rates: BTC, ETH, SOL, USDC and hundreds more against USD, GBP, EUR and 150+ currencies, either way, or crypto to crypto. | $0.001free to try |
| Stablecoin depeg | Stablecoin depeg monitor across 400+ USD, EUR, GBP and other stablecoins: which trade below their peg now and how badly, which are seeing fast redemptions (supply falling, often a run), which trade at a premium, and the status of the 10 largest. | $0.005free to try |
| Token price | Live price of any token on Base, Solana, Ethereum, BNB, Arbitrum, Polygon, Optimism or Avalanche from DEX data: USD price, total liquidity, 24h volume, buys/sells, price change (5m/1h/6h/24h), market cap, FDV, pair count and pool age. | $0.005free to try |
Questions people ask
Where do the rates come from?
Fiat rates are the European Central Bank's published euro reference rates. Crypto rates come from Coinbase, cross-checked against Kraken where it lists the pair.
Can I use it for accounting?
ECB reference rates are widely used for reporting, but check which rate your accountant or tax authority requires (HMRC publishes its own).
Can I convert on a past date?
Yes for fiat: any date since 1999. Crypto answers are current only.
How much does it cost?
From $0.001 a call, charged only when it succeeds. In Claude or Cursor the first 20 calls a day are free, with no sign-up.
Related
- Time zone converter API: convert a meeting time between cities
- IBAN checker: validate an IBAN before you pay
- Stablecoin depeg checker: is USDC or USDT off its peg?
More: every use case · developer docs · llms.txt