> ## Documentation Index
> Fetch the complete documentation index at: https://developers.1-funnel.org/llms.txt
> Use this file to discover all available pages before exploring further.

# AsyncAPI specification

> Machine-readable AsyncAPI 3.0.0 outbound webhook contract.

<Warning>
  **Developer Preview**

  This documentation describes the upcoming 1Funnel External Integration API.

  The documented API endpoints and authentication services are not yet available
  for public integration.

  You can explore the API specifications, request and response schemas, webhook
  events, and integration guides.

  Sandbox and production availability will be announced separately.
</Warning>

## Canonical editable source

`asyncapi/external-integration-webhooks/asyncapi.yaml`

## Published artifact

Self-contained AsyncAPI 3.0.0 document:

[`/specs/external-integration-webhooks.asyncapi.yaml`](/specs/external-integration-webhooks.asyncapi.yaml)

* Contract version: `0.1.0-draft`
* Event types: 9
* Envelope `api_version`: `v1`

Developer-facing pages under [Event payload reference](/api-reference/events/overview)
are generated from the editable AsyncAPI examples
(`npm run generate:event-reference`).

Related guides: [Verify signatures](/guides/webhooks/verify-signatures),
[Retries and duplicates](/guides/webhooks/retries-duplicates),
[Event compatibility](/guides/webhooks/event-compatibility).


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