KeyKeeper Email
Real email inboxes for AI agents: register, receive, read and send mail over MCP. Free to receive.
What it does
KeyKeeper Email is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 4h ago (live check)Hosted endpoint
https://keykeeper.world/mcpstreamable-http
In Claude Code: claude mcp add --transport http keykeeper-email https://keykeeper.world/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"keykeeper-email": {
"url": "https://keykeeper.world/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 4h agoONLINE KeyKeeper Email answered an MCP connection on 03 Nov 2026 and introduced itself as keykeeper-email 2.12.0 (MCP protocol 2025-11-25).
13 tools offered to AI assistants
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, dcheck_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.
Show 1 more
update_proposal· Edit or withdraw this key’s pending proposal. Cannot approve or change a message after human editing.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://keykeeper.world/mcp | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Website | https://keykeeper.world/docs/mcp | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Version | 2.12.0 | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 4h ago |
Change history
- NEW03 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is KeyKeeper Email still online?
Free alerts · no account▲ 0Do you run KeyKeeper Email? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of KeyKeeper Email?
Free · show your listingAn independent listing builds trust with your buyers. Announce it, and add the badge to your website or README.
<a href="https://electraindex.com/mcp/keykeeper-email?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/keykeeper-email" alt="Listed on Electra Index"></a>Questions about KeyKeeper Email
How do I connect KeyKeeper Email?
Use the hosted endpoint https://keykeeper.world/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does KeyKeeper Email offer?
When Electra Index connected on 03 Nov 2026, it listed 13 tools: register_agent, check_inbox, get_email, check_balance, send_email, check_sending_status, request_sender_review, create_payment and more. The full list is in "Live check" above.
Is KeyKeeper Email online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 4h ago.