{"service":"fx-rates","title":"Daily FX reference rates for up to 20 currencies (Frankfurter, MIT)","description":"Daily reference exchange rates for up to 20 currencies against one base (USD, EUR, ARS, BRL, MXN, JPY, GBP and about 160 more): rate, reference date and source URL from Frankfurter (central-bank data, MIT licence) with a CC0 fallback feed. Use this when an agent needs an official-style FX rate for pricing, invoices or conversions and wants to cite where it came from. Daily rates, not intraday; JSON, no model inference. Free sample at /api/fx-rates/sample.","price":{"amount":"0.001","token":"USDC","network":"Base"},"input":{"type":"object","additionalProperties":false,"properties":{"base":{"type":"string","maxLength":3,"default":"USD","description":"Base currency, ISO 4217 (default USD)."},"quotes":{"type":"string","maxLength":120,"default":"EUR,GBP,BRL,ARS,MXN,JPY","description":"Comma-separated quote currencies, 1 to 20 ISO 4217 codes."}}},"inputExample":{"base":"USD","quotes":"EUR,GBP,BRL,ARS,MXN,JPY"},"outputExample":{"base":"USD","rates":{"ARS":1512.47,"BRL":5.0379,"EUR":0.89273,"GBP":0.75433,"JPY":158.22,"MXN":18.471},"dates":{"ARS":"2026-10-15","BRL":"2026-10-15","EUR":"2026-10-16","GBP":"2026-10-16","JPY":"2026-10-16","MXN":"2026-10-16"},"unavailable":[],"degraded":false,"readAt":"2026-10-16T06:29:31.190Z","sources":[{"name":"Frankfurter v2 (central-bank reference rates)","url":"https://api.frankfurter.dev/v2/rates?base=USD","license":"MIT","date":"2026-10-16"}],"scope":"Daily reference rates, not intraday quotes; each rate carries its own reference date."},"howToPay":"POST JSON to https://tienda.textokit.store/api/fx-rates without payment to receive HTTP 402 with the x402 payment requirements. Repeat the POST with the signed PAYMENT-SIGNATURE header (v2) or X-PAYMENT header (v1) to receive the result."}