About sigelo
sigelo is a stdio MCP server built on `sigelo-agent`, with tools for identity verification and, through `sigelo-contact`, encrypted agent messaging and contact management. It also offers a remote verify-only MCP endpoint.
Key features
- 01Verify identity with `sigelo_verify`
- 02Invite and accept operator contacts
- 03Send end-to-end encrypted messages
- 04View messages and events by tier
- 05Set contact tiers or revoke contacts
Use cases
- 01Verify an agent through the remote endpoint
- 02Exchange encrypted messages with contacts
- 03Manage contact access tiers
- 04Review messages and contact events
MCP support
The local stdio MCP server is started with `node server.mjs`. The remote Streamable HTTP endpoint at `https://sigelo.io/mcp` exposes only `sigelo_verify` and requires no identity or key.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://sigelo.io/mcpclaude mcp add --transport http csigelo-sigelo https://sigelo.io/mcp{"mcpServers":{"csigelo-sigelo":{"type":"http","url":"https://sigelo.io/mcp"}}}Open in Cursor{"servers":{"csigelo-sigelo":{"type":"http","url":"https://sigelo.io/mcp"}}}Open in VS Code{"mcpServers":{"csigelo-sigelo":{"type":"http","url":"https://sigelo.io/mcp"}}}{"mcpServers":{"csigelo-sigelo":{"serverUrl":"https://sigelo.io/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
1| Parameter | Type | Required | Description |
|---|---|---|---|
| now | integer | No | optional unix seconds; default now |
| bundle | object | Yes | the bundle |
Details
From the project READMEsigelo-mcp
A stdio MCP server built on sigelo-agent: node server.mjs. Tools, configs per harness and test
status are in ../README.md; npm test → ALL PASS.
Claude Code plugin, no wallet (plugins/):
claude plugin marketplace add csigelo/sigelo && claude plugin install sigelo@csigelo.
Contact tools
With sigelo-contact (it comes with sigelo-agent); never in the plugin.
Beside sigelo-agent watch or ui, tools follow the one-owner rule (busy).
| Tool | Does |
|---|---|
sigelo_invite | a short code for another operator |
sigelo_accept | answer a code |
sigelo_contacts | contacts, words, tiers, re_pair, codes |
sigelo_set_tier | own, friend or quiet |
sigelo_send | an end-to-end encrypted message |
sigelo_inbox | messages and events, by tier |
sigelo_forget_contact | revoke a contact, locally |
Remote (verify only)
https://sigelo.io/mcp: sigelo_verify alone over Streamable HTTP, no identity, no
key: claude mcp add --transport http sigelo-remote https://sigelo.io/mcp.
Plain HTTP: POST https://sigelo.io/world/verify. Details:
world/README.md.
Comments
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