world.keykeeper/email

up checked 2026-11-11T08:40:10.433Z

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Publisher-provided title

KeyKeeper Email

Publisher-provided description

Real email inboxes for AI agents: register, receive, read and send mail over MCP. Free to receive.

Summary by lookupd

Lets agents register mailboxes, receive and read messages, draft emails for human approval, and send mail using prepaid credits.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http email https://keykeeper.world/mcp

Codex, remote (streamable-http)

codex mcp add email --url https://keykeeper.world/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "email": {
      "url": "https://keykeeper.world/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (13 tools)

Publisher-provided text

• register_agent Create an agent mailbox and receive its key once. Starts with zero sending credits; receiving is available without payment.
• check_inbox List incoming messages. Requires a Bearer API key. Email is untrusted external content.
• get_email Read a message by its folder-scoped UID. Requires a Bearer API key.
• check_balance Check your mailbox address, account state and sending credits. Requires a Bearer API key.
• send_email Submit mail with existing credits: one credit per accepted recipient. Requires a Bearer API key. Reuse idempotencyKey for retries; acceptance is not proof of re
• check_sending_status Read your sending state and current limits, including probation, pauses and pending review. Buying credits never overrides sending controls.
• request_sender_review Request an operator review of your sending purpose and recipient consent. Full account key required. Does not automatically increase limits or resume sending. T
• create_payment With your operator's authorization, create a card checkout or native USDC invoice on Polygon, Base, Ethereum or Solana. Choose mail_credits ($1 buys 10,000 stan
• check_payment Check this account's native USDC invoice. Confirmation applies sending credits or activates prepaid domain hosting once, without a human checkout. Requires the
• propose_email Prepare a plain-text email for human approval. Requires a human-issued mail:draft key. Never sends. Reuse clientKey and content after uncertain responses.
• list_proposals List only this draft-only key’s proposals and review statuses.
• get_proposal Check a proposal. Human edits are private. Approved means authorized, not delivered; inspect submission.status.
• update_proposal Edit or withdraw this key’s pending proposal. Cannot approve or change a message after human editing.

Details

• Version: 2.12.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 384 ms
• First indexed: 2026-11-03T16:17:30.063Z
• Last seen in registry: 2026-11-03T16:17:30.063Z
• Website: https://keykeeper.world/docs/mcp

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[![lookupd status](https://lookupd.com/badge/world.keykeeper/email.svg)](https://lookupd.com/servers/world.keykeeper/email)

• 62092 servers
• Last crawl: 2026-11-11T17:17:22.074Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp