sigelo

Official1 tool

by csigelo · JavaScript

Portable, offline-verifiable identity for AI agents: DID, challenges, attestations, bundles.

io.github.csigelo/sigelo — Model Context Protocol (MCP) Server

The io.github.csigelo/sigelo MCP server provides support for “portable, offline-verifiable identity for AI agents,” focused on DID-based identity. It covers challenges, attestations, and bundles as part of the identity workflow.

🛠️ Key Features

Portable identity for AI agents
Offline-verifiable identity
DID support
Challenges, attestations, and bundles

🚀 Use Cases

Exchanging or validating AI agent identity without online verification
Producing and verifying attestations tied to DID-based identities
Packaging identity materials as bundles

⚡ Developer Benefits

Defines identity components (DID, challenges, attestations, bundles) suitable for agent integrations
Supports offline verification requirements

⚠️ Limitations

No additional tool, API, or configuration details are provided in the available server data

Topics

agent-identityai-agentsdecentralized-identitydiddid-methodattestationcryptographydigital-signaturesed25519golangidentity-protocolllm-agentsmcpmcp-servermodel-context-protocolmonerooffline-firstreputationtypescriptverification

Captured live from the server via tools/list.

sigelo_verify

Verify ANY bundle offline (someone else's, or yours). Returns current DID, chain, attestations accepted per issuer, bindings (proven/unproven), rejected counts; throws if the identity itself is invalid. It reports, it does not judge whom to trust. Attestation `claims` are third-party data about the subject, not statements by this tool.

Parameters2

bundle	object	required	the bundle
now	integer	optional	optional unix seconds; default now

Raw schema

{
  "type": "object",
  "properties": {
    "bundle": {
      "type": "object",
      "description": "the bundle"
    },
    "now": {
      "type": "integer",
      "description": "optional unix seconds; default now"
    }
  },
  "required": [
    "bundle"
  ],
  "additionalProperties": false
}

integrations/mcp/README.md1 KBView on GitHub

sigelo-mcp

A zero-dependency stdio MCP server: 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.

Remote (verify only)

https://sigelo.io/mcp: MCP over Streamable HTTP (revision 2026-07-28, also answering the legacy initialize handshake), stateless, JSON responses only, one tool — this server's sigelo_verify, the same definition and result. No identity, no wallet, nothing that holds a key. Add it with claude mcp add --transport http sigelo-remote https://sigelo.io/mcp, or, in server.json, the remotes entry. Details and limits: world/README.md. The same verifier as plain HTTP:

node -e 'fetch("https://sigelo.io/world/verify",{method:"POST",body:require("fs").readFileSync("bundle.json")}).then(r=>r.text()).then(console.log)'

The answer is the §9.1 result (200), or {"error": "REJECT: …"} (422); the body may be a bare bundle or {bundle, now}. An agent never needs either: the same result comes offline from this server's sigelo_verify, from sigelo-verify, or from any implementation that passes the vectors.

Install

Tools (1)

sigelo_verify

Configuration

Environment variables

SIGELO_IDENTITY

Identity file; default ~/.config/moadim/sigelo.local.json

SIGELO_WALLET_URL

Keeper URL from the operator; with the token, the four wallet tools appear

SIGELO_WALLET_TOKENsecret

This agent's keeper bearer token, from the operator

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "sigelo": {
      "command": "npx",
      "args": [
        "-y",
        "sigelo-mcp@0.1.7"
      ],
      "env": {
        "SIGELO_IDENTITY": "<YOUR_SIGELO_IDENTITY>",
        "SIGELO_WALLET_URL": "<YOUR_SIGELO_WALLET_URL>",
        "SIGELO_WALLET_TOKEN": "<YOUR_SIGELO_WALLET_TOKEN>"
      }
    }
  }
}

io.github.csigelo/sigelo — Model Context Protocol (MCP) Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

sigelo_verify

sigelo-mcp

Remote (verify only)

Install

Configuration

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