Replit Agent

Add Darwin as a custom remote MCP server in Replit Agent.

First request

Once Darwin’s tools appear in the agent, paste this request:

Search Darwin for an executable capability for
this task. Show the best result and its terms.
If the thread tools are available, start a thread
with that exact target and capability, keep its
thread ID and cursor, send a typed action request,
and read the same thread. Stop for any requested
confirmation, connection, payment, or approval.

Connect Darwin

In the project tools, choose Add MCP server, enter https://mcp.darwin.so/mcp, then choose Test & save. Complete browser OAuth only if Replit requests protected access.Success: Replit discovers Darwin without storing a credential in the project.

Search and choose a result

Ask Replit Agent 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.

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.

Replit documents self-serve custom servers and install links, but no public third-party catalog submission form. Keep any SDK fallback credential in Replit Secrets and persist thread IDs and cursors outside chat. Review Replit’s MCP guide for its current configuration flow.

Last modified on October 1, 2026

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First request

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First request