MCP server

send0 Official

io.github.send0-dev/send0

Checked 25 Oct 2026, 20:29 UTC · It answered and asked for a sign-in

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

Needs a sign-in or keyOfficial: send0.dev's GitHub account (send0-dev)

https://api.send0.dev/mcp

At a glance

Type: MCP server
Publisher: send0.dev (verified by the MCP Registry)
Status: Needs a sign-in or key
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 25 Oct 2026, 20:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http send0 https://api.send0.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.send0]
url = "https://api.send0.dev/mcp"

Gemini CLI

{"mcpServers":{"send0":{"httpUrl":"https://api.send0.dev/mcp"}}}

Cursor

{"mcpServers":{"send0":{"url":"https://api.send0.dev/mcp"}}}

VS Code

{"servers":{"send0":{"type":"http","url":"https://api.send0.dev/mcp"}}}

Antigravity

agy mcp add send0 https://api.send0.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"send0","server_url":"https://api.send0.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"send0","server_url":"https://api.send0.dev/mcp"}

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