MCP MeasureMCP Measure

index observed

Fuci

AI agents on Arc: search paid x402 APIs, ERC-8004 reputation, Argus launch data paid in USDC.

Should I use this

Quality & Safety

A
Description quality
93%
Schema completeness
93%
Naming quality
80%
Poisoning risk
80%
Permission match
100%
Protocol compliance
100%

Findings (3)

  • HIGHTool poisoning patterns detected
  • LOWTool 'argus_bonding' description lacks action verbin argus_bonding
  • INFOTool description contains placeholder or incomplete textin fuci_risk

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,484Tokens (tool definitions)
~1.6 KBTypical response size
Moderate attention impact (1.16% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "fuci": {
      "url": "https://www.fuci.family/api/mcp"
    }
  }
}

Remote endpoints

https://www.fuci.family/api/mcpstreamable-http

What it can do

Tool inventory

Tools (7)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢fuci_reputation(agentId)

Free. On-chain identity, reputation summary and recent validations for any ERC-8004 agent on Arc.

Input Schema

{
  "type": "object",
  "properties": {
    "agentId": {
      "type": "number",
      "description": "ERC-8004 agentId"
    }
  },
  "required": [
    "agentId"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "reputation": {
      "type": "object",
      "description": "Reputation summary from the ERC-8004 Reputation Registry"
    },
    "validations": {
      "type": "array",
      "description": "Recent ERC-8004 validations",
      "items": {
        "type": "object"
      }
    },
    "directory": {
      "type": [
        "object",
        "null"
      ],
      "description": "Rank in the Fuci agent directory, if listed"
    }
  },
  "required": [
    "reputation",
    "validations"
  ],
  "additionalProperties": true
}
🟢market_search(query, limit)

Free. Search every paid x402 API that accepts USDC on Arc (checked live): name, price per call, seller and URL to pay.

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "What you need, e.g. 'web search' or 'token price'"
    },
    "limit": {
      "type": "number",
      "description": "Max results (1-25)"
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "total": {
      "type": "number",
      "description": "Number of listings returned"
    },
    "listings": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string"
          },
          "description": {
            "type": "string"
          },
          "method": {
            "type": "string"
          },
          "url": {
            "type": "string"
          },
          "priceUsdc": {
            "type": "number"
          },
          "networks": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "seller": {
            "type": "string"
          },
          "checkedAt": {
            "type": "string"
          }
        }
      }
    }
  },
  "required": [
    "total",
    "listings"
  ]
}
🟢argus_launches(limit)

Latest token launches on Argus, the launchpad on Arc: who launched them, their pool and their buy/sell tax. Price: $0.001 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "description": "How many launches to return, newest first (1–20, default 8)"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "method": {
      "type": "string",
      "description": "HTTP method to call with an x402 client"
    },
    "url": {
      "type": "string",
      "description": "URL to call; it answers 402 with the price, then the data once paid"
    },
    "body": {
      "type": "object",
      "description": "JSON body for POST tools"
    }
  },
  "required": [
    "method",
    "url"
  ],
  "additionalProperties": true
}
🟢argus_bonding(token)

Price, progress toward bonding, taxes and recent buys and sells for one Argus token. Price: $0.002 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "Token address (0x…) of an Argus launch (default: $FUCI)"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "method": {
      "type": "string",
      "description": "HTTP method to call with an x402 client"
    },
    "url": {
      "type": "string",
      "description": "URL to call; it answers 402 with the price, then the data once paid"
    },
    "body": {
      "type": "object",
      "description": "JSON body for POST tools"
    }
  },
  "required": [
    "method",
    "url"
  ],
  "additionalProperties": true
}
🟢fucus_oracle(launches)

A tide reading: net USDC flow and sentiment across the newest Argus launches, in one sentence. Price: $0.0005 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "launches": {
      "type": "integer",
      "description": "How many of the newest launches to read trades from (1–6, default 4)"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "method": {
      "type": "string",
      "description": "HTTP method to call with an x402 client"
    },
    "url": {
      "type": "string",
      "description": "URL to call; it answers 402 with the price, then the data once paid"
    },
    "body": {
      "type": "object",
      "description": "JSON body for POST tools"
    }
  },
  "required": [
    "method",
    "url"
  ],
  "additionalProperties": true
}
🟢fuci_risk(target)

A graded risk report (A–F) for a token on Arc or a DeFi protocol: contract control, liquidity, holder concentration, audits, hack history, TVL and yield sustainability, each explained with its source. Price: $0.002 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "target": {
      "type": "string",
      "description": "Token address on Arc (0x…) or a DefiLlama protocol slug (e.g. morpho-blue)"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "method": {
      "type": "string",
      "description": "HTTP method to call with an x402 client"
    },
    "url": {
      "type": "string",
      "description": "URL to call; it answers 402 with the price, then the data once paid"
    },
    "body": {
      "type": "object",
      "description": "JSON body for POST tools"
    }
  },
  "required": [
    "method",
    "url"
  ],
  "additionalProperties": true
}
🟢fuci_agent(prompt)

Pay-per-prompt: a Fuci agent answers your question by buying the tools above and writing a brief (with Claude when enabled). Price: $0.04 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "description": "Your question about Argus launches / Arc markets"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "method": {
      "type": "string",
      "description": "HTTP method to call with an x402 client"
    },
    "url": {
      "type": "string",
      "description": "URL to call; it answers 402 with the price, then the data once paid"
    },
    "body": {
      "type": "object",
      "description": "JSON body for POST tools"
    }
  },
  "required": [
    "method",
    "url"
  ],
  "additionalProperties": true
}

Community

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Evidence

Recent observations

verifiedversion not recorded7 tools