How do I install Nextmail?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Nextmail need an API key?

No required environment variable is listed on this record.

When was Nextmail last checked?

Last checked 2026-11-10. AI-native email for businesses, developers, and AI agents.

Nextmail MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://api.nextmail.sh/mcp

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http sh.nextmail-mcp https://api.nextmail.sh/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "sh.nextmail-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://api.nextmail.sh/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.0.6
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

Nextmail for AI agents

Email for AI agents and for the people who build them, from Nextmail. This repository connects your agent to your own Nextmail mailbox, and teaches it the jobs people most often hand to an agent: sending email from code, working through an inbox, catching verification emails in tests, and moving from Resend.

What is in it

One MCP server, https://api.nextmail.sh/mcp, the remote server Nextmail runs. Your client signs in with OAuth in the browser, and on the consent page you choose which permissions and which addresses the agent may use. You can narrow or remove the connection later under Account, Connected apps.

Four skills, in skills/: sending email with the SDKs, the API or the CLI; working in a mailbox over MCP; disposable inboxes for sign-up tests; and moving from Resend.

Install

Claude Code

/plugin marketplace add nextmailhq/mcp /plugin install nextmail@nextmail

Claude, ChatGPT and other chat apps. Add https://api.nextmail.sh/mcp as a custom connector.

Codex. Add this to ~/.codex/config.toml:

[mcp_servers.nextmail] url = "https://api.nextmail.sh/mcp"

Gemini CLI

gemini extensions install https://github.com/nextmailhq/mcp

Any agent that reads skills

npx skills add nextmailhq/mcp

What it runs, sends and fetches

Nothing in this repository runs on your machine. The skills are written instructions, and the plugin adds one remote MCP server, which your client reaches over HTTPS at https://api.nextmail.sh/mcp once you have signed in. Its tools act on your Nextmail workspace, with the permissions you approved, and every tool is marked as reading or as making changes, so your client can ask before anything is sent or changed. The skills link to the documentation at https://nextmail.sh, and to the Nextmail SDK and CLI packages, which are installed only if you choose to.

Privacy, terms and support

License

MIT. See LICENSE.

Nextmail

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Nextmail?

Does Nextmail need an API key?

What transport does Nextmail use?

When was Nextmail last checked?

Documentation

Nextmail for AI agents

What is in it

Install

What it runs, sends and fetches

Privacy, terms and support

License