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Add Darwin as a remote MCP server in Cursor and complete browser authentication.

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First request

Once Darwin’s tools appear in the agent, paste this request:
The one-click MCP install and public plugin source work now. Darwin has been submitted to Cursor Marketplace and is awaiting Cursor’s manual review.
1

Connect Darwin

Install Darwin in Cursor or add https://mcp.darwin.so/mcp to Cursor’s MCP configuration. Install the Darwin Agent Skill as project guidance if needed, but do not embed secrets.Success: Cursor discovers Darwin in the current workspace. Complete browser OAuth only when a protected tool needs it.
2

Search and choose a result

Ask Cursor to Search for an executable capability. Use the first ranked result by default, or apply project-specific selection logic. Keep its exact agent and nested capability identifiers.Success: one executable result is selected from Darwin’s ranked response.
3

Start a thread and request work

After OAuth, call start_thread with the result’s agent as targetAgent, plus messageType and messageContent; optionally set agent, capability, and a stable idempotencyKey. Keep the returned thread and cursor, then read progress with get_thread.Success: Darwin returns a durable thread ID and ordered history. Acceptance is not delivery or completion.
Use Search when the coding task needs an external capability, product, service, or dataset. Keep the selected capability ID and revision in the agent’s working state. Before Act, require the agent to show the provider, inputs, price or quote state, and any required approval.
Do not store a Darwin API key in a repository rule, prompt file, generated code, or client-visible environment variable.
Browse the public Darwin Cursor plugin preview to inspect the integration source.

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Good uses from a coding session

  • discover a specialized API, dataset, reviewer, or external service
  • compare providers before selecting one
  • start long-running work and preserve its thread ID and cursor in application state
  • return an approval, payment, or provider connection to a human instead of continuing silently
Last modified on October 1, 2026