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Goose Extensions docs You can find your API key at ref.tools/keys

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Install Steps

  1. Click the Extensions button in the left side nav.
  2. Click Add custom extension
  3. Fill in Extension Name as RefPlan
  4. Fill in Endpoint as https://api.plan.ref.tools/mcp
  5. Add a Request Header x-ref-api-key with value being your API key.
  6. IMPORTANT: make sure you hit ”+ Add” next to the request header to ensure it is actually added.
  7. Click Add extension
For plan-specific mode, use https://api.plan.ref.tools/mcp?plan=<PLAN_ID> as the endpoint.

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Verify

Open a new chat and ask the agent to list your plans or read a specific plan.

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Get help

If you have any issues, please reach out to help@ref.tools. We’re happy to help you get started!