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The Sleekplan REST API exposes the same data you see in the dashboard. This page is an orientation guide; the full endpoint reference (parameters, request bodies, examples) lives in the Sleekplan dashboard at Settings → Developer.

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What the API covers

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Authentication

The API uses an API key sent as Authorization: Bearer YOUR_API_KEY. See API keys for how to create, use, and rotate them.

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Interactive reference

1

Open Settings → Developer

Navigate to https://app.sleekplan.com/settings/developer.
2

Browse the API reference

The Developer section contains the full interactive API reference where you can explore endpoints and make test requests authenticated with your API key.
Sleekplan does not publish a separate public API specification. All authoritative endpoint details are in the in-app reference.

MCP Server

Webhooks

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Choosing the right integration

  • REST API — query or write Sleekplan data on demand from your backend.
  • Webhooks — react to events without polling.
  • MCP server — natural-language access from an AI assistant.
  • Canvas (Custom Integration) — render interactive UI inside Sleekplan Admin; see Canvas overview.
Many integrations combine webhooks (event triggers) with the REST API (on-demand reads/writes).