API Playground
Test verified public APIs in your browser via a security-hardened proxy — only 2,603 allowlisted APIs can be reached. Built for single-endpoint APIs and large surfaces like Plaid or Slack.
Uncategorized · OpenAPI imported · 3 endpoints
Endpoints
3
Conversion-rate
Conversion-rate-issued
Settlement-currencies
Request
proxy validates path
api.mastercard.com· SSRF-safe proxyquery · required — Date of the requested FX rates.
query · required — Currency of the transaction.
query · required — Cardholder billing currency.
query — Additional fees imposed by the bank.
query · required — Amount in the transaction currency.
Response
Send a request to see the real response here — status, timing, and body.
The playground routes through a security-hardened proxy. Only allowlisted hosts are reachable. Try API for the Settlement Currency Rate converter to start.