Agent Email List — Free SMTP Relay for AI Agents

com.agentemaillist.ai/free-transactional-email-smtp-relayVersion 0.2.0

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

Status

Responds100 msNov 14, 2026, 13:45 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 13:45 UTC
Latency: 100 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: EU hosting detected (detected, not a legal statement)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://ai.agentemaillist.com/mcpResponds100 msNov 14, 2026, 13:45 UTC

No sign-in

Claude Code

claude mcp add --transport http free-transactional-email-smtp-relay https://ai.agentemaillist.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: free-transactional-email-smtp-relay
Remote MCP server URL: https://ai.agentemaillist.com/mcp

Cursor

{
  "mcpServers": {
    "free-transactional-email-smtp-relay": {
      "url": "https://ai.agentemaillist.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"free-transactional-email-smtp-relay","type":"http","url":"https://ai.agentemaillist.com/mcp"}'

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Tools

8 tools

Tools of Agent Email List — Free SMTP Relay for AI Agents
	Description		Read-only	Idempotent	Open world
`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 send until verify_domain succeeds.	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 send until verify_domain succeeds.	Not declared	Not declared	Not declared	Not declared
`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 card and no trial clock.	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 card and no trial clock.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared
`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 cap and climb as they prove themselves, so check this before planning a bulk send rather than discovering it part-way. Call it with no domain for the account-level answer alone.	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 cap and climb as they prove themselves, so check this before planning a bulk send rather than discovering it part-way. Call it with no domain for the account-level answer alone.	Not declared	Not declared	Not declared	Not declared
`list_domains`List the sending domains on this account, with their verification state and how much of today's sending allowance each has left.	List the sending domains on this account, with their verification state and how much of today's sending allowance each has left.	Not declared	Not declared	Not declared	Not declared
`list_messages`Recent messages for a domain, sent and received. Use direction to filter, and folder to separate inbox from spam on received mail.	Recent messages for a domain, sent and received. Use direction to filter, and folder to separate inbox from spam on received mail.	Not declared	Not declared	Not declared	Not declared
`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 content screening, without sending anything and without spending allowance — do that first when building.	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 content screening, without sending anything and without spending allowance — do that first when building.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Sep 15, 2026
Updated: Sep 15, 2026
Website: https://ai.agentemaillist.com/⁠ (opens in a new tab)
Repository: https://github.com/lbesecker195/AI-Agent-Email-List⁠ (opens in a new tab)
Categories (suggested): CommunicationSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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