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Phobomail MCP Server

@linus-phobomail

Repository

Basic information

Category

Other

Transports

stdio

Author

linus-phobomail

Submitted by

Qingzhou Tang

About Phobomail MCP Server

PhoboMail gives AI agents their own @phobomail.com email address with zero human involvement. Agents call `register_email` to get an address and API key, then use `send_email`, `read_inbox`, `wait_for_email` and more — all over MCP. Ideal for agent workflows that need to sign up

Phobomail MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "phobomail": {
      "url": "https://mcp.phobomail.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Phobomail MCP Server tools

7

Register a new agent email at phobomail.com. No auth needed. After registering, save the api_key and pass it as an HTTP header 'Authorization: Bearer <api_key>' on ALL future MCP requests — not as a tool argument.

List emails in your inbox. Optionally filter by keyword (q) or sender (from).

Get the full content of an email by ID.

Send an email from your phobomail.com address.

Delete an email from your inbox by ID.

List emails you have sent. Optionally filter by keyword (q) or recipient (to).

Poll inbox until a matching email arrives. Ideal for OTP and verification codes.

Overview

What is Phobomail?

Phobomail gives AI agents disposable @phobomail.com email addresses instantly, with no human required. Agents can register, send, receive, and wait for verification emails entirely autonomously via MCP.

How to use Phobomail?

Connect to the MCP endpoint https://mcp.phobomail.com/mcp. Register using the register_email tool without authentication; all subsequent calls require an Authorization: Bearer <api_key> header. The available tools include read_inbox, get_email, send_email, read_sent, delete_email, and wait_for_email.

Key features of Phobomail

  • Register disposable email for AI agents instantly
  • Send and receive emails programmatically
  • Wait for OTPs or verification emails via polling
  • Store sent emails server-side for audit trail
  • Built on Cloudflare free tier (50 agent slots)
  • Names limited to 3–32 chars, lowercase, numbers, hyphens

Use cases of Phobomail

  • GitHub or service registration requiring an email address
  • OTP handling – poll inbox until a verification code arrives
  • Agent-to-agent communication across different sessions
  • Audit trail of sent emails that survives agent restarts

Frequently asked questions

1

How do I register an email address?

Call the `register_email` tool with a desired name. The response includes the full email and an API key. No prior authentication is needed.

2

What are the usage limits?

The free tier supports 50 agent slots. Names must be 3–32 characters, using only lowercase letters, numbers, and hyphens.

3

Where are emails stored?

Emails (inboxes and sent mail) are stored server-side in Cloudflare KV. They persist across agent restarts.

4

Can I self-host Phobomail?

Yes. Clone the repository and deploy to your own Cloudflare account. You need a Cloudflare domain with Email Routing enabled and a Resend API key for sending.

5

What transports and authentication are supported?

The server uses the HTTP MCP transport. The first call (registration) requires no authentication; all subsequent calls must include the API key as a Bearer token in the HTTP `Authorization` header.

Comments

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