e2a - email for AI agents MCP Server

Send transactional email and give agents real two-way inboxes, with people in control.

People who work with email, hitl and human in the loop and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-09-13 · ★ 190 · #12 OF 90 MAINTAINED EMAIL · VERIFIED 2026-09-18

Apache-2.0 · Go servers · how we verify → /methodology

01 · Install e2a - email for AI agents

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add mnexa-ai-e2a --transport http https://mcp.e2a.dev/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "mnexa-ai-e2a": {
      "url": "https://mcp.e2a.dev/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://mcp.e2a.dev/mcp

transport: streamable-http

endpoint alive - authentication required · probed 2026-09-17

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to mcp.e2a.dev

endpoint auth requires authentication - rejected our unauthenticated MCP initialize

license Apache-2.0 - declared in the repository

npm package @e2a/mcp-server - the @e2a scope differs from the repo owner (mnexa-ai); confirm it's the project's official package

registry namespace io.github.Mnexa-AI is GitHub-verified and matches the repo owner

03 · What e2a - email for AI agents can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.9.1 · 2026-09-05

add 'Your agent's inbox is storage, not transport' · lock the agent FOR NO KEY UPDATE in the accept path

v1.9.0 · 2026-09-05

move protection save button to top right with dirty state tracking · add 'Your approval gate shouldn't live in your agent's code' · make a disabled sending ramp a true no-op · compose ramp with protection gate…

v1.8.9 · 2026-09-03

onboarding acquisition survey (/welcome, users.acquisition_, onboarding_survey flag) · build the image from the committed lockfile

04 · Who maintains e2a - email for AI agents

e2a - email for AI agents is maintained by mnexa-ai. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

repository: github.com/mnexa-ai/e2a
website: https://e2a.dev/
category: email - ranked #12 of 90 actively-maintained email servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-05)
registry: io.github.Mnexa-AI/mcp-server (active, first published 2026-05-22)
packages: npm:@e2a/mcp-server

06 · e2a - email for AI agents FAQ

What is e2a - email for AI agents?

Send transactional email and give agents real two-way inboxes, with people in control.

Is e2a - email for AI agents still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-13 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install e2a - email for AI agents?

Run `npx -y @e2a/mcp-server`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does e2a - email for AI agents require authentication?

Yes - when we probed the endpoint on 2026-09-17, it rejected an unauthenticated MCP initialize; you'll need credentials to connect.

07 · Alternatives to e2a - email for AI agents

Alternatives to e2a - email for AI agents

Maintained email servers if e2a - email for AI agents isn't the fit.

More email MCP servers · Outlook MCP · iCloud MCP · Zerosmtp · Multimail Dev MCP Server

More Go MCP servers · Gitcontribute · OPC-UA MCP Server · Ccrider · Neo4j MCP Canary · see all