API conventions

The details common to every FINAP endpoint.

Transport

Protocol

HTTPS

Production API traffic is encrypted in transit.

Format

JSON

Request and response bodies use application/json.

Base URL

https://api.finap.uk/api/v1

Version 1 of the public REST API.

Casing

camelCase

Response object keys use JavaScript-style camel casing.

Timing

Billable service responses include durationMs. It measures FINAP’s handling and upstream round trip, not the full client-observed network time.

Rate limits

FINAP does not currently publish a numerical rate-limit contract or rate-limit response headers. Build retries around status and network conditions rather than assuming a fixed quota window.