Claude Code, Cursor and other MCP clients

The snippets below are the ones PostDelegate shows under Settings > Agents / Dev in the app, with the address filled in. The configuration formats belong to each client and may change, so if a client rejects a snippet, check its own MCP documentation and use the address and header from this page.

Prefer sign in with PostDelegate where the client supports OAuth. The client opens your browser and you approve it once. Use an API key for clients that cannot do that. Replace YOUR_API_KEY with the key from Settings > Agents / Dev and keep it out of anything you commit.

Claude Code

Sign in with PostDelegate:

claude mcp add postdelegate --transport http "https://app.postdelegate.com/mcp-oauth-dynamic"

Then run /mcp inside Claude Code and authenticate the postdelegate server. With an API key instead:

claude mcp add --transport http postdelegate https://app.postdelegate.com/api/mcp --header "Authorization: Bearer YOUR_API_KEY"

Cursor

Add to .cursor/mcp.json in your project.

{
  "mcpServers": {
    "postdelegate": {
      "url": "https://app.postdelegate.com/mcp-oauth-dynamic"
    }
  }
}

With an API key:

{
  "mcpServers": {
    "postdelegate": {
      "url": "https://app.postdelegate.com/api/mcp",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
    }
  }
}

VS Code and GitHub Copilot

Add to .vscode/mcp.json.

{
  "servers": {
    "postdelegate": {
      "type": "http",
      "url": "https://app.postdelegate.com/mcp-oauth-dynamic"
    }
  }
}

With an API key, use "url": "https://app.postdelegate.com/api/mcp" and add "headers": { "Authorization": "Bearer YOUR_API_KEY" }.

Codex

Add to ~/.codex/config.toml:

[mcp_servers.postdelegate]
url = "https://app.postdelegate.com/mcp-oauth-dynamic"

Then run codex mcp login postdelegate. With an API key:

[mcp_servers.postdelegate]
url = "https://app.postdelegate.com/api/mcp"
http_headers = { "Authorization" = "Bearer YOUR_API_KEY" }

Windsurf

Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "postdelegate": {
      "serverUrl": "https://app.postdelegate.com/mcp-oauth-dynamic"
    }
  }
}

Gemini CLI

Add to ~/.gemini/settings.json:

{
  "mcpServers": {
    "postdelegate": {
      "url": "https://app.postdelegate.com/mcp-oauth-dynamic"
    }
  }
}

Amp

amp mcp add postdelegate https://app.postdelegate.com/mcp-oauth-dynamic

Warp, Hermes, OpenClaw and NanoClaw

Settings > Agents / Dev in the app has ready-made configuration for Warp, Hermes, OpenClaw and NanoClaw, with your own address and, if you pick the API key option, your key.

Any other client

If your client supports remote MCP servers over streamable HTTP, give it one of these:

If a client only speaks the older server-sent-events transport, use https://app.postdelegate.com/api/sse/YOUR_API_KEY. Treat that address as a secret, because it contains your key.

Check it from a terminal

You can confirm that a key works with a single request. A reply that is not 401 means the key was accepted.

curl -i https://app.postdelegate.com/api/mcp \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Real clients send an initialize request first, so a bare tools/list may still return a protocol error. That is fine for this check. A 401 is what to worry about.

For what the tools do, see MCP tools.