world.keykeeper/email · v2.12.0 · communication
KeyKeeper Email is healthy: it completed an MCP handshake in 1529 ms and exposes 13 tools.
Real email inboxes for AI agents: register, receive, read and send mail over MCP. Free to receive.
Endpoint: https://keykeeper.world/mcp (streamable-http)
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| Users (last 30 days) | 0 |
| Handshake | Healthy |
| Auth needed | None |
| Tool count | 13 |
| Latency | 1529 ms |
| Last checked (UTC) | 2026-11-03T20:35:28.541Z |
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-11-03T20:35:28.541Z | Healthy | 1529 |
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 remote delivery. |
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. Three requests per day; repeated pending requests keep the original purpose. |
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 standard sends) or hosting at $1 per 30 days: domain_hosting for the first domain, domain_addon plus domainId for another verified domain under |
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 same account's API key. |
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. |