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Changelog

What's changed in the AnyoneIn API, newest first.

The API is versioned in the path (/v1). Within a version we only add things: new optional fields, new values in lists that say they can grow, new endpoints. Anything that would break an integration gets a new version, with notice.

27 September 2026

v1 reference published. The first public reference for the API, based on the product running in pilots today:

  • Confirmations: create, retrieve, list, advance and cancel.
  • Email, text (or WhatsApp) and AI phone call channels, with standard and demo cadences.
  • Signed confirmation.updated webhooks with the X-AnyoneIn-Signature header.
  • A branded customer page for every confirmation (links.customer).
  • Validation that reports every problem at once, as 422 with errors.

Coming next

These are planned and not yet available. We'll list each one here when it ships.

  • Idempotency keys on create.
  • Webhook retries with backoff, a signed timestamp for replay protection, and secret rotation.
  • Rate-limit headers and per-key limits (rate limits).
  • Cursor pagination and filters on list.
  • Replying as the customer through the API in the sandbox.
  • cadence defaulting to standard.
  • Machine-readable error codes alongside error.

Base URL https://api.anyonein.co.uk/v1 is a placeholder until the production domain is confirmed. Found a mistake? Tell us.