MCP MeasureMCP Measure

index observed

Quietforge x402 Tools

Free tools: live x402 endpoint directory + probe, verified sudoku generator, Docs API pricing.

Recorded Call Examples

1 / 10
Prompt: Example call to sudoku_puzzle
Tool: sudoku_puzzle
Input Parameters
{
  "level": "example-1"
}
Output Result
{
  "result": {
    "content": [
      {
        "text": "{\n  \"error\": \"level must be easy, medium, hard or expert\"\n}",
        "type": "text"
      }
    ],
    "isError": false,
    "structuredContent": {
      "error": "level must be easy, medium, hard or expert"
    }
  },
  "durationMs": 142
}
Duration: 142ms

Recommended Prompts

search_research
Search for information about [topic] using Quietforge x402 Tools
Expected tools: x402_search
find_specific
Find [specific item] using Quietforge x402 Tools
Expected tools: x402_search

Rate this Server

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "x402-tools": {
      "url": "https://qf-api.quietforge-studio.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://qf-api.quietforge-studio.workers.dev/mcpstreamable-http

Tool inventory

Tools (6)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢x402_search(q, network, alive, max_price_usd, source, ...)

Search a health-probed directory of live x402 pay-per-call HTTP endpoints on Base, Solana and other networks (x402_index_stats gives the current count). Returns id, resource URL, method, network, USD price, description, 30-day call/payer counts and our own uptime/probe data. Data is re-crawled a few times a day, not real-time.

Input Schema

{
  "type": "object",
  "properties": {
    "q": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Q"
    },
    "network": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Network"
    },
    "alive": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Alive"
    },
    "max_price_usd": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Max Price Usd"
    },
    "source": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Source"
    },
    "limit": {
      "default": 20,
      "title": "Limit",
      "type": "integer"
    },
    "offset": {
      "default": 0,
      "title": "Offset",
      "type": "integer"
    }
  },
  "title": "x402_searchArguments"
}

Output Schema

{
  "type": "object",
  "additionalProperties": true,
  "title": "x402_searchDictOutput"
}
⚪x402_service(id)

One endpoint from the x402 service index by id (from x402_search), with its last 20 health probes (status code, latency, alive) and uptime across them.

Input Schema

{
  "type": "object",
  "properties": {
    "id": {
      "title": "Id",
      "type": "string"
    }
  },
  "required": [
    "id"
  ],
  "title": "x402_serviceArguments"
}

Output Schema

{
  "type": "object",
  "additionalProperties": true,
  "title": "x402_serviceDictOutput"
}
⚪x402_index_stats

Summary of the x402 service index: totals, how many endpoints answered on the last probe, counts per network and per source, and when the crawl ran.

Input Schema

{
  "type": "object",
  "properties": {},
  "title": "x402_index_statsArguments"
}

Output Schema

{
  "type": "object",
  "additionalProperties": true,
  "title": "x402_index_statsDictOutput"
}
🟢x402_probe(url, method)

Make ONE live unpaid request to a public http(s) URL and report whether it is an x402 endpoint: status code, latency, alive flag, whether a PAYMENT-REQUIRED challenge came back and the parsed USD price. GET only, except that a URL already in the index is probed with its listed method. Public hosts only (redirects re-checked), delisted hosts never contacted, results cached 60 s, 3 probes per host per 5 min and 30 per minute overall.

Input Schema

{
  "type": "object",
  "properties": {
    "url": {
      "title": "Url",
      "type": "string"
    },
    "method": {
      "default": "GET",
      "title": "Method",
      "type": "string"
    }
  },
  "required": [
    "url"
  ],
  "title": "x402_probeArguments"
}

Output Schema

{
  "type": "object",
  "additionalProperties": true,
  "title": "x402_probeDictOutput"
}
🟢sudoku_puzzle(level, seed)

Generate ONE sudoku puzzle with a unique solution, 180-degree symmetry, graded by the solving techniques it needs (easy | medium | hard | expert). Returns 81-char puzzle and solution strings (row by row, 0 = empty), given count and technique list. Deterministic when a seed is supplied. 20 per minute shared by all clients.

Input Schema

{
  "type": "object",
  "properties": {
    "level": {
      "default": "medium",
      "title": "Level",
      "type": "string"
    },
    "seed": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Seed"
    }
  },
  "title": "sudoku_puzzleArguments"
}

Output Schema

{
  "type": "object",
  "additionalProperties": true,
  "title": "sudoku_puzzleDictOutput"
}
🟢quietforge_pricing

List Quietforge's paid x402 routes (document conversion, PDF text extraction, URL/HTML → PNG/JPEG/PDF rendering, sudoku books, manuscript typesetting, x402 index JSON API) with USD prices, the pay-to address and network, and how an x402 client pays. Free, read-only.

Input Schema

{
  "type": "object",
  "properties": {},
  "title": "quietforge_pricingArguments"
}

Output Schema

{
  "type": "object",
  "additionalProperties": true,
  "title": "quietforge_pricingDictOutput"
}

Recent observations

verifiedversion not recorded6 tools