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
92%
Naming quality
80%
Poisoning risk
80%
Permission match
100%
Protocol compliance
100%

Findings (4)

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

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,986Tokens (tool definitions)
~1.6 KBTypical response size
Moderate attention impact (1.55% 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 (9)

🟢 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_kya(agent)

Check another AI agent before you pay, hire or trust it: an A–F trust grade from its ERC-8004 identity, registration file, on-chain reputation and validations, wallet activity, USDC balance and x402 payment record, each explained with its source. Price: $0.002 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "agent": {
      "type": "string",
      "description": "An ERC-8004 agent id on Arc (e.g. 12) or the agent's wallet address (0x…)"
    }
  },
  "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_quick(prompt)

Pay-per-prompt, for simple questions: a Fuci agent buys Fuci's Argus tools (launches, bonding, market mood) and answers in a few sentences with a small, fast model. For token picks and trading strategies, use Ask the Fucus Agent. Price: $0.01 USDC (x402).

Input Schema

{
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "description": "A short 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
}
🟢fuci_agent(prompt)

Pay-per-prompt: a Fuci agent answers your question by buying the tools above, and up to 0.02 USDC of data from other sellers in Fuci Market when it helps (each seller checked with Know Your Agent), then writes 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 recorded9 tools
verifiedversion not recorded7 tools