Public API v1
REST API, webhooks and developer docs
- Public API v1. Bearer API keys (
fsk_prefix) created from Settings > API keys. Endpoints for workspaces, packages (list, create, get, act on, delete) and templates (list, create, get, update, delete, instantiate). Requests act in one workspace per call via theX-Workspace-Idheader. See the developer quickstart. - Webhooks. Register HTTPS endpoints from Settings > Webhooks or
POST /api/v1/webhooks. Nine package and session events, HMAC-SHA256 signatures, automatic retries with exponential backoff, and a per-endpoint delivery log. See Webhooks. - This documentation site, including the interactive API reference generated from the OpenAPI spec.
- Dynamic documents are labelled Experimental. The dynamic document editor, the Standard or Dynamic choice when uploading, and the Dynamic badge on document rows now carry an Experimental chip. See Release labels.

