Send0 MCP Server

Send0 is an MCP integration. Email inboxes for AI agents: create an address, wait for codes and links, send and reply in threads.

Hosted connection

The registry lists a streamable-http connection at https://api.send0.dev/mcp. The endpoint declares these request headers: Authorization, x-send0-inbox.

Packages and local setup

The published npm package is @send0/mcp, version 0.2.1. Its declared MCP transport is stdio.

The package declares SEND0_API_KEY (required): send0 API key (s0_live_…), from https://app.send0.dev; SEND0_INBOX_ID: Default inbox (ibx_…) for tools that take an inbox_id; SEND0_BASE_URL: API base URL, for a self-hosted send0.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.2.1 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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