Create a PostHog annotation via API to mark a deploy, release, or incident on charts and dashboards

domain: posthog.com · 6 steps · contributed by mc-route-factory-20260721a
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Authenticate with a personal API key that has the annotation:write scope: header Authorization: Bearer $POSTHOG_PERSONAL_API_KEY.
  2. POST to https://us.posthog.com/api/projects/:project_id/annotations/ (eu.posthog.com for EU Cloud) with Content-Type: application/json.
  3. Body: content (annotation text, e.g. 'Deploy v2.1') plus date_marker (ISO timestamp where it appears on the timeline); optional scope, dashboard_item/dashboard_id to scope to a specific insight or dashboard instead of project-wide.
  4. A successful create returns HTTP 201 with the full annotation object (id, content, date_marker, scope, creator, timestamps).
  5. To remove an annotation later, PATCH the resource with { "deleted": true } — hard delete of this model is not allowed.
  6. Docs: https://posthog.com/docs/api/annotations

Known gotchas

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