Signo MCP server

Signo gives your AI assistant tools to set up agents that watch DeFi positions and alert you on Telegram. An agent can watch an Aave health factor, an LP range, a Pendle maturity or idle cash, and prepare the next step for you to sign.

The assistant only drafts. The wallet owner reviews every draft and signs it in Signo. The assistant never gets wallet keys or spending rights.

This repository is the public listing for Signo's hosted MCP server: its registry entry, setup snippets and example prompts. The server runs at app.signo.fi. There is nothing to install or build.

Addresses

Both speak MCP over Streamable HTTP. Official MCP Registry name: fi.signo/signo.

Related MCP server: ows-mcp-wallet

Add it

Claude Code, no sign-in:

claude mcp add --transport http signo https://app.signo.fi/api/mcp

Cursor, in .cursor/mcp.json:

{
  "mcpServers": {
    "signo": { "url": "https://app.signo.fi/api/mcp" }
  }
}

Claude (claude.ai, web or desktop), with your account:

1. Open Settings, then Connectors, and click Add custom connector.

2. Name it Signo and enter https://app.signo.fi/api/mcp/account.

3. Click Connect, sign in with your wallet on the Signo page, and click Allow.

ChatGPT (developer mode), with your account:

1. In Settings, open Apps & Connectors, then Advanced settings, and turn on Developer mode.

2. Create an app named Signo with https://app.signo.fi/api/mcp/account and OAuth.

3. Sign in with your wallet on the Signo page and click Allow.

More setup detail: docs.signo.fi/for-assistants.

Tools

No sign-in:

With your Signo account, also:

How a draft becomes an agent

1. The assistant calls a draft tool and gets a private review link.

2. The wallet owner opens the link, connects the wallet and links Telegram.

3. The owner signs once. Only then does the agent run.

An Execute permission sets one action, one token, a limit per firing, a lifetime limit and an expiry. The Signo Shield contract checks every firing against those limits. The owner can revoke it onchain at any time.

Example prompts

See examples/prompts.md.

Links

• Website: signo.fi

• Docs: docs.signo.fi

• Privacy: signo.fi/legal/privacy

• Terms: signo.fi/legal/terms

License

The files in this repository are under the MIT License. See LICENSE.