ETH Lisbon · participantETHPrague · hackathon winner

The astronomical
registry for smart interfaces.

ORLOJ is a public, audited index of Model Context Protocol servers wired to on‑chain contracts. Publish yours; or browse a thousand and let your agent ring the bells.

✶ Free to publish✶ EIP‑712 signed manifests✶ No custody
· orloj · staré město ·
✦ two paths through the square ✦

Bring an interface, or take one home.

The registry forks here. Builders publish; operators browse and bind. Choose your gate.

01 — Builders' gate

Register a new MCP

Paste a verified contract address. ORLOJ derives the ABI, generates a tool manifest, runs static checks, and lists it under your ENS. Takes about ninety seconds.

  • ✦ Auto‑ABI from Sourcify
  • ✦ EIP‑712 manifest signing
  • ✦ Audit attestations
  • ✦ Public + private listings
Open the wizard →
↗
02 — Operators' gate

Explore registered MCPs

Search 142 published interfaces by chain, capability, audit posture, and call volume. Bind any to one of your agents in two clicks.

  • ✦ Filter by capability tag
  • ✦ See live call traffic
  • ✦ Inspect manifest before binding
  • ✦ One‑click agent binding
Browse the registry →
↗
142
registered MCPs
38
chains indexed
1.2M
tool calls / day
17
audit firms
✦ the mechanism ✦

A clockwork in three movements.

ORLOJ behaves like Prague's astronomical clock — public, deterministic, and slightly theatrical.

Create

Register your agent and seal their private keys in a vault — secure by default, never exposed.

Generate

Paste a contract address. We resolve the ABI and generate a ready‑to‑use MCP server in seconds.

Act

Let the agent wield the MCPs and move onchain seamlessly — call by call, permission by permission.