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One

Find, document and execute authenticated API calls across 1000+ apps via one MCP server

Official TypeScript Cloud Remote

★ 12 stars Last pushed 2026-11-10 License: MIT

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Connect

Review any command before running it. Package names and URLs come from the server's own registry entry.

Remote (streamable-http)

https://mcp.withone.ai/mcp Requires auth (checked 2026-11-09)

Claude Code:

claude mcp add --transport http mcp https://mcp.withone.ai/mcp

Or add to your MCP client config:

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.withone.ai/mcp"
    }
  }
}

Package (npm 2.5.1)

npx -y @withone/[email protected]

Or add to your MCP client config:

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@withone/[email protected]"
      ],
      "env": {
        "ONE_SECRET": "<YOUR_VALUE>"
      }
    }
  }
}

ONE_SECRET required secret — One API key from https://app.withone.ai/settings/api-keys
ONE_PERMISSIONS — Restrict actions by what they do: read (read actions only), write (read and write actions) or admin (all, including delete)
ONE_APPROVAL — Ask the user to approve actions before they run: off, delete (delete actions) or write (write and delete actions). Needs a client that supports MCP elicitation
ONE_CONNECTION_KEYS — Comma-separated connection keys the agent may see, or * for all
ONE_ACTION_IDS — Comma-separated action IDs the agent may see and run, or * for all
ONE_KNOWLEDGE_AGENT — Set true to drop execute_one_action and run in knowledge-only mode
ONE_IDENTITY — Scope connections to a single user, team, organization or project identifier
ONE_IDENTITY_TYPE — Type of ONE_IDENTITY: user, team, organization or project