CircleCI · AsyncAPI Specification
Circleci Webhooks
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CI/CDContinuous IntegrationContinuous DeploymentDevOpsPipelinesWorkflowsDeveloper ToolsAsyncAPIEvents
AsyncAPI Specification
generated: '2026-10-04'
method: searched
generator: extract-docs-artifacts.py (local)
source: https://circleci.com/docs/reference/outbound-webhooks-reference/
sources:
- https://circleci.com/docs/reference/outbound-webhooks-reference/
- https://circleci.com/docs/guides/integration/outbound-webhooks/
- https://circleci.com/docs/guides/orchestrate/custom-webhooks/
- https://circleci.com/docs/guides/integration/slack-integration/
description: CircleCI outbound webhooks deliver event notifications for workflow and job completions.
events:
- event: workflow-completed
description: A workflow has reached a terminal state.
- event: job-completed
description: A job has reached a terminal state.
delivery:
auth: Optional secret token; each request includes a `circleci-signature` header containing a versioned HMAC‑SHA256 signature of the request
body.
signature: The `circleci-signature` header is a comma‑separated list of versioned signatures, e.g. `v1=...`. Only the latest version (v1) is
used.
retries: If the receiving server does not return a 2xx response or does not respond within 10 seconds, CircleCI will retry the delivery later.
docs: https://circleci.com/docs/reference/outbound-webhooks-reference/
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