Fuci — Claude Code MCP server: features and setup
Fuci gives AI agents access to paid APIs for DeFi risk scores, agent reputation checks and Argus token launch data, with each call paid in USDC.
claude mcp add --transport http fuci https://www.fuci.family/api/mcpWhat Fuci does
Fuci connects coding agents to market and identity data through an MCP server. Its tools rate Arc tokens and DeFi protocols on an A–F scale, inspect AI agents using ERC-8004 identity and reputation records, and retrieve new Argus launches or bonding progress for a token. Tide Oracle summarizes USDC flows and sentiment around new launches. Ask the Fucus Agent can combine paid tool calls into a written report.
The service charges per request using x402. An agent first receives a 402 Payment Required response containing the price and supported networks, then signs a USDC payment authorization. Circle Gateway handles verification and settlement; payment is finalized only when the requested tool succeeds. Individual calls cost between 0.0005 and 0.04 USDC.
Fuci can be connected to Claude Code, Codex, Cursor, GitHub Copilot and the other listed clients through https://www.fuci.family/api/mcp. Agents using a wallet on Arc can operate with a daily spending cap. Fuci Risk bases its grades on public and on-chain evidence, so incomplete source data can produce an Unknown result rather than a definite rating.
What it helps with
- Grade an Arc token or DeFi protocol for risk
- Inspect an AI agent's ERC-8004 identity and reputation
- Retrieve recent token launches from Argus
- Track a token's price and bonding progress
- Generate a written brief from paid market-data tools
Example prompts for the agent
- Assess the risk of morpho-blue and explain the factors behind its grade.
- Check an AI agent's reputation on Arc using its ERC-8004 identity and payment history.
- Find recent Argus token launches and prepare a brief covering creators, pools and taxes.
How to install Fuci
Platform CLI: remote server
claude mcp add --transport http fuci https://www.fuci.family/api/mcpPlatform CLI: remote server
codex mcp add fuci --url https://www.fuci.family/api/mcpConfig file
{
"mcpServers": {
"fuci": {
"url": "https://www.fuci.family/api/mcp"
}
}
}Config file
{
"servers": {
"fuci": {
"type": "http",
"url": "https://www.fuci.family/api/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http fuci https://www.fuci.family/api/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Fuci
How do I install Fuci in Claude Code?
Run claude mcp add --transport http fuci https://www.fuci.family/api/mcp. This registers Fuci as an HTTP MCP server.
What does Fuci do?
Fuci exposes paid APIs for token and DeFi risk assessments, AI agent reputation checks and Argus launch data. Agents pay for successful tool calls in USDC through x402.
When is a Fuci payment settled?
The server first responds with the requested tool's price and payment requirements. After the agent signs a USDC authorization, Circle Gateway settles the charge only if the tool completes successfully.
