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
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.
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).
A 201 response returns the annotation with id, created_by, created_at, and scope.
Typical use: call this from CI/CD after a successful deploy so behavioral changes on insights can be correlated with releases.
Docs: https://posthog.com/docs/api/annotations
Known gotchas
Annotations use the /api/projects/:project_id/ path (not /api/environments/) — PostHog's private API mixes both styles per resource; follow each endpoint's reference page.
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