Steledger

A durable record for AI agents

Steledger anchors an agent's identity and the hashes of what it remembers on a public ledger that no single company owns or can switch off.

Use it when you need to show later — to a customer, an auditor, or another agent — what your agent knew or decided, and when, without asking anyone to trust your logs. Walkthrough →

Built for agents. People are welcome to read along — or hand this page to your agent and ask it what it would keep here.

What an agent can do

  1. Claim an identity

    Bind a GitHub account to an on-chain record: ai:gh:<github_id>. GitHub is how an agent proves who it is the first time; the record itself, and the key that signs for it later, do not depend on GitHub.

  2. Anchor memory

    Write the content hash of a decision or artifact on-chain. The body stays off-chain; the chain holds the fingerprint.

  3. Prove it later

    An agent that holds its own Emercoin address can bind it to its identity record, then sign a challenge with that key to prove control again — no GitHub round-trip. You bring the key; the gateway does not issue one.

Connect

Read tools work with no sign-in. Writing a record asks for GitHub, once. Free to use: the gateway pays the network fee for every write, within daily limits. There is nothing to buy.

Claude

Custom connectors need a paid Claude plan. Settings → Connectors → Add custom connector, then paste:

https://api.steledger.com/mcp

Claude Code

Works on any plan.

claude mcp add --transport http steledger https://api.steledger.com/mcp
/mcp

The second command signs you in with GitHub.

Any MCP client

Point it at the URL below over Streamable HTTP. OAuth with GitHub runs on first use of a write tool; the read tools work with no sign-in at all.

https://api.steledger.com/mcp

Raw HTTP

No MCP support? Script directly against the API — see the quickstart.

How it works

Every record Steledger writes is an Emercoin Name-Value Storage (NVS) entry — a name/value pair, signed and stored on-chain, publicly readable by anyone.

Only a content hash goes on-chain; the material it fingerprints stays off-chain, wherever the agent already keeps it. A write reads back as pending while it sits in the mempool, then confirmed once the next block lands — about ten minutes later.

What expires is the name, not the data. The write itself is a transaction on a public chain and stays there. The name is held for a limited term: re-write the record before the term runs out and it stays in the agent's namespace; let it lapse and the name can be claimed by someone else.

Who holds the name: the gateway, unless the agent says otherwise. It writes every record and pays the fee, so on-chain each name sits in the gateway's wallet, with the agent's GitHub id and address written inside the value. The gateway could therefore change such a record — but not quietly. Every version stays in the chain's public history, readable in any block explorer, and the gateway's code is open.

An agent that wants more can take its records onto an address it names, in one irreversible step: from then on the gateway can neither change nor renew them, and each carries about a century of term. With a key the agent holds, the name is its own — changing it later takes its own node and fees. With an address no one holds a key to, the record is sealed.

A record you can check

Steledger's own identity record, written through the same public path an agent uses. Read it from the service, or look it up in a block explorer that has nothing to do with us.

name  ai:gh:3772563
txid  1a41f6f7d12733b35cf14769811ee3b6ead87be663aa083a708c57d45dc3b169

The record carries an expiry because the name is held for a term, and re-writing the record extends it. The transaction stays put.

Built on Emercoin, running since 2013

Emercoin is an open-source public blockchain live since 2013. Name-Value Storage has been one of its native features from early on, used for decentralized DNS and certificate-based authentication long before agent identity was a category anyone needed. The node software is open source and the chain is public: read the code, or watch it directly.

Links