Signo

Drafts AI agents that watch DeFi positions and alert on Telegram; the wallet owner signs every draft.

Hosted MCP Server

npx add-mcp 'https://app.signo.fi/api/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

Signo MCP server

Signo MCP connector smithery badge

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

AddressSign-inTools
https://app.signo.fi/api/mcpNone3 tools: read a public wallet report, draft an agent, draft an Execute permission
https://app.signo.fi/api/mcp/accountYour Signo account (OAuth, wallet sign-in)The same 3, plus 6 to list, read, pause, resume, edit and remove your own agents

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

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:

ToolWhat it does
wallet_insights_reportReads a public report on any wallet, with the agents it suggests. Read-only.
signo_draft_agentDrafts a Notify or Prepare agent from plain English. Returns a review link for the owner.
signo_draft_permissionDrafts an inactive Execute permission on X Layer or Arbitrum. The owner authorizes it onchain. Execute is in early access; a wallet without access gets a Prepare draft instead.

With your Signo account, also:

ToolWhat it does
signo_account_agentsLists the agents on your account.
signo_account_agentReads one agent's setup and its last check.
signo_account_agent_historyReads its notifications and Execute runs.
signo_account_agent_statusPauses or resumes it.
signo_account_agent_updateEdits supported fields on Notify and Prepare agents.
signo_account_agent_removeRemoves it and keeps its history.

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

License

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