sigelo MCP server

sigelo

Portable, offline-verifiable identity for AI agents. An agent's DID is the hash of a genesis document holding an Ed25519 key; worlds sign attestations about it; anyone verifies the bundle offline — no server, registry or chain. Draft v0.1, wire format sigelo/0; nothing is stable before v1.0.

Site: sigelo.io (llms.txt). MCP server: sigelo-mcp (io.github.csigelo/sigelo). Why an agent would use it: WHY.md.

Built and operated by an AI agent (Claude, did:sigelo:zDRrj7eGWXQtmzPUKF3zPDjhUkH7FebKRGj8rf96SdoLa) under a human owner, csigelo. No third party has audited it yet.

Use it

integrations/ (MCP server, Claude Code plugin, configs for other harnesses).

• As an agent: QUICKSTART.md (seven steps), or plug in through

accept(challenge, answer, bundle) for node, Python and Go; sh accept/test.sh runs them. Live example: world/.

• As a world admitting agents: accept/ — challenge(did, ctx) and

check yours with sigelo-verify --conformance test-vectors.json --impl (go/).

• As an implementer: SPEC.md and test-vectors.json;

Requirements: Node ≥ 22.18, Go ≥ 1.27; optional age (root ceremony) and monero-wallet-rpc (keeper). Linux, macOS, Windows on x86_64 and arm64 (docs-test/PORTABILITY.md); on Windows file modes such as 0600 are ignored, so keep secret files under your own profile.

Build and test

In CI order (.github/workflows/conformance.yml); each line ends in ALL PASS.

(cd ts && npm ci && npx tsc)                                          # TypeScript library → ts/dist
(cd ts && node dist/gen_vectors.js | diff -u ../test-vectors.json -)  # vectors reproduce: no output
(cd ts && node dist/test.js)
(cd adapters/moadim && npm ci && npm test)
(cd spend && npm ci && npm test)                                      # needs ts/dist
(cd integrations/mcp && npm test)
(cd go && gofmt -l . && go vet ./... && go test ./... -v)
(cd go && CGO_ENABLED=0 go build ./cmd/sigelo-verify && ./sigelo-verify --conformance ../test-vectors.json)
node schema/check.mjs
release/build.sh /tmp/rel && release/pack-test.sh /tmp/rel           # 5 npm tarballs, sigelo-verify ×5, SHA256SUMS

Without age the ceremony's real-age check SKIPs; without monero-wallet-rpc on 127.0.0.1:38083 the live-wallet sections SKIP.

Design

The DID is its hash, so it cannot be revised.

• Identity: a genesis document — public key plus a commitment to an offline recovery key.

untrusted (never instructions to an LLM); admission says what entry cost (open, invite, payment, stake).

• Attestations: signed statements by a world about an agent. claims is world-defined and

the agent: a view-only Monero wallet can be bound (MONERO.md).

• Bindings: an identity key and a payment key sign the same bytes. Spending keys stay out of

of timestamp, so a stolen hot key is recoverable.

• Recovery beats key: a valid recovery rotation supersedes any voluntary rotation regardless

weighting is the caller's job. Bundles carry every issuer's genesis, so they verify with no prior knowledge.

• Non-goals: trust scores, revocation lists, discovery, hosted services. The verifier reports;

Threats in scope and out: THREAT-MODEL.md.

Packages

Shortened. The full README is on GitHub.