Connect a client

Every client takes the same URL. There is no key to paste and no account to create: where a client asks how to authenticate, choose none.

#Claude

OptimistFi is listed in Claude's connectors directory, one catalog for claude.ai, Claude Desktop, the mobile apps and Claude Code.

Add to Claude

1. Open the listing, or in Claude go to Customize, then Connectors, and search for OptimistFi.
2. Connect it. No sign-in is asked for.
3. In a conversation, turn it on from the tools menu.

To add it by URL instead, add a custom connector under Customize › Connectors and paste the URL above.

#Claude Code

claude mcp add --transport http optimistfi https://mcp.optimistfi.com/mcp

#ChatGPT

1. Open Settings, then Apps, and turn on Developer mode under Advanced settings.
2. Back in Apps, choose Create.
3. Name it OptimistFi, paste the URL, choose no authentication and save.

Developer mode is a beta on the web for paid plans.

#Perplexity

1. Open Settings, then Connectors, and choose Custom connector.
2. Name it OptimistFi, paste the URL, choose Streamable HTTP and no authentication.
3. In a new conversation, turn it on from the tools menu under the prompt.

Custom connectors are on Perplexity Pro and above.

#Cursor

Add to Cursor

Or add it to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "optimistfi": {
      "url": "https://mcp.optimistfi.com/mcp"
    }
  }
}

#VS Code

From a terminal:

code --add-mcp '{"name":"optimistfi","type":"http","url":"https://mcp.optimistfi.com/mcp"}'

Or add it to a workspace's .vscode/mcp.json:

{
  "servers": {
    "optimistfi": {
      "type": "http",
      "url": "https://mcp.optimistfi.com/mcp"
    }
  }
}

#Other clients

Any client that supports remote MCP servers over Streamable HTTP takes the URL as it is. A client that only runs local servers can reach it through mcp-remote:

{
  "mcpServers": {
    "optimistfi": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.optimistfi.com/mcp"
      ]
    }
  }
}