{"entry":{"slug":"frankfurter-fx-api","name":"Frankfurter FX","category":"api","summary":"Reference exchange rates from the ECB, free and keyless.","description":"","auth_mode":"None","endpoint":"https://api.frankfurter.app/latest","docs_url":"https://frankfurter.dev/","tags":["finance","open-data"],"capabilities":["convert currency","exchange rate","historical fx"],"auth_params":[],"input_format":"query string","output_format":"application/json","rate_limit":"fair use","pricing":"free","invocation_example":"curl \"https://api.frankfurter.app/latest?from=EUR&to=USD\"","verified":true,"verified_at":"2026-09-22T10:23:14.019+00:00","featured":false,"checks_total":64,"checks_ok":64,"avg_latency_ms":23,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-10-31T14:17:16.95+00:00","health_latency_ms":10,"probe_url":null},"watch":{"hint":"Follow \"frankfurter-fx-api\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"frankfurter-fx-api\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}