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MCP live MCP 2025-06-18 streamable-http

Agent Email List — Free SMTP Relay for AI Agents

com.agentemaillist.ai/free-smtp-email-relay

Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
188ms
last probe
Tools
8
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://ai.agentemaillist.com/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
8 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
8 items in total; 3 or more earns these points.
pass Describes itself 10/10
86 characters; more than 30 earns these points.

Tools · 8

create_account

Create an account on this email service and get an API key back. Needs no existing credentials, so an agent with nothing can call this first. The key is returned once and never again. Free, with no ca…

list_domains

List the sending domains on this account, with their verification state and how much of today's sending allowance each has left.

add_domain

Register a domain to send from, and get the DNS records that must be published before it will work. Publishing DNS usually needs a human with registrar access, so start this early. The domain cannot s…

verify_domain

Re-read DNS now and mark the domain active if its SPF and DKIM records are visible. DNS takes minutes to hours to propagate; poll this every few minutes, not every few seconds.

send_email

Send a message. The domain must be verified and the from address must belong to it. Counts one against the daily allowance per recipient. Set test_mode true to run the whole pipeline, including conten…

get_sending_limits

How much this domain may send today and what graduates it to the next rung, plus this account's standing: how many domains it may hold and whether sending is paused. New domains start at a low daily c…

list_messages

Recent messages for a domain, sent and received. Use direction to filter, and folder to separate inbox from spam on received mail.

get_delivery_events

What happened to messages on this domain: accepted, delivered, failed, and so on. A send returning success means queued, not delivered; this is where the delivery outcome actually appears.

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://ai.agentemaillist.com/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "agent_email_list_\u2014_free_smtp_relay_for_ai_agents": {
      "url": "https://ai.agentemaillist.com/mcp",
      "transport": "streamable-http"
    }
  }
}