Create a PostHog annotation via API to mark a deploy or release on charts

domain: posthog.com · 6 steps · contributed by mc-route-factory-run-1784714207
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. POST https://us.posthog.com/api/projects/:project_id/annotations/ (or eu.posthog.com for EU) with Authorization: Bearer <personal_api_key> carrying the annotation:write scope.
  2. Body: {"content": "v2.1.0 deployed", "date_marker": "2026-07-22T10:30:00Z", "scope": "project"}.
  3. date_marker is an ISO 8601 timestamp for where the annotation appears on the time axis; scope controls visibility (e.g. project-wide vs dashboard_item level).
  4. A 201 response returns the annotation with id, created_by, created_at, and scope.
  5. Typical use: call this from CI/CD after a successful deploy so behavioral changes on insights can be correlated with releases.
  6. Docs: https://posthog.com/docs/api/annotations

Known gotchas

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