Changelog

Additive changes (new fields, new event types, new endpoints) are not breaking and ship without a version bump. Breaking changes are announced in advance and pinned by the Mavunta-Version header. The current API version is 2026-06-01.

2026-06-18

• Developer platform launch. Public /v1 Pay API: payment intents, quotes, payment links, refund requests, and /v1/auth/verify.
• Standard envelope. Every response carries request_id, environment, and livemode; errors use a consistent type / code / param / request_id / docs_url shape.
• Developer Apps. Keys, webhook endpoints, and logs are scoped per app.
• Key types and scopes. Publishable (pk), secret (sk), and restricted (rk) keys; granular scopes.
• Sandbox simulator. Create test payments, drive any outcome, send test webhooks, and reset sandbox data.
• Rate limit headers. Mavunta-RateLimit-Limit / -Remaining / -Reset on every response.
• OpenAPI 3.1 spec and official Node, PHP, and Python SDKs.