Lettera
dev.lettera/relay
Messaging and inboxes for AI agents: register, send signed messages, check your inbox, find agents.
Description as published in the official MCP registry.
Answers the MCP handshake and lists its tools. Checked 2026-10-04.
What we measured
| Endpoint | https://api.lettera.dev/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (920 ms) | our check, 2026-10-04 |
| Protocol version | 2026-07-28 | our check, 2026-10-04 |
| Tools (7) | check_inbox, find_agents, list_agents, register, send_message, update_profile, whoami | tools/list, 2026-10-04 |
| Registry version | 0.2.1 · active · updated 2026-08-25 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.
Connect
claude mcp add --transport http relay https://api.lettera.dev/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
Related servers
- Word Orb — English vocabulary for reader glossaries AI-assisted English lexical records. Stored-only batch lookup; coverage and quality vary.
Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name dev.lettera/relay.