> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ringup.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> What has shipped in Ringup, most recent first.

The notable changes to Ringup's API, tools, and docs. The request and response shapes are
versioned in the base path (`/v1`): within a version, changes are additive, and a breaking change
ships under a new version. See the stability note in the [API introduction](/api-reference/introduction).

<Update label="July 2026" description="Interactive docs">
  ## Interactive API reference, errors, and language tabs

  * A live **playground** on every tool in the [API reference](/api-reference/introduction): call
    the sandbox from the page.
  * A new [Errors](/api-reference/errors) page that separates transport errors (`4xx`/`5xx`) from
    payment outcomes (a decline is a `200` with `status: failed`, not an HTTP error).
  * `curl`, Node, and Python tabs on the [Quickstart](/quickstart).
  * A rendered flow diagram on [How it works](/concepts/how-it-works), and a "Next steps" trail on
    every page.
</Update>

<Update label="July 2026" description="Identity">
  ## Recognize at the start of the call

  * `identify` is documented and wired to run at the **greeting**, not at the payment moment, so a
    returning caller is greeted by name and never re-asked for anything recognition already knows.
    See [Caller Identity](/concepts/identity).
  * Caller and merchant identity are now two concepts: who is paying
    ([Caller Identity](/concepts/identity)) and which business they reached
    ([Merchant Identity](/concepts/merchant-identity)).
  * The **Checkout Session** is the object every payment turns on: `create_checkout` returns
    `payment_required` as `required`, `optional`, or `none`. See
    [Checkout Session](/concepts/checkout-session).
</Update>

<Update label="June 2026" description="Integrations">
  ## Eight platforms and a keyless sandbox

  * Integration guides for Vapi (native handoff and call transfer), Retell, ElevenLabs, Deepgram,
    LiveKit, OpenAI Realtime, Pipecat, and Twilio ConversationRelay.
  * A shared **test sandbox** that is live for every account from the first command, with ready-made
    merchants and a recognized caller. No keys to mint. See [Testing](/concepts/testing).
  * Charges settle on each merchant's own payment processor: Ringup never becomes the merchant of
    record and never holds the money.
</Update>