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Abstract sunset in warm orange and purple Read and update your systems graph with the Flow API. Flow’s REST API gives you access to projects, entities, relationships, and automations through authenticated HTTPS requests.

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Get started

  • Quickstart — Authenticate and read data from your first project.
  • Authentication — Create an API key and understand its permissions.
  • API reference — Explore endpoints, request examples, and the interactive playground.

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Explore examples

Use API conventions for pagination, branches, and error handling. Follow the examples to read entities or write in batches.

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Connect an AI client

Use Flow MCP to connect an AI client to your systems graph. Follow Connect a client, then use Flow tools to read and update project data.

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Run automations

Learn how automations and triggers work together. Set up a webhook automation, then start runs and poll their results. API updates are included in the release notes.