Back to search
100
MCP live MCP 2026-07-28 streamable-http

Quietforge x402 Tools

io.github.quietforgestudio/x402-tools

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

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
1937ms
last probe
Tools
7
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://qf-api.quietforge-studio.workers.dev/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
7 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
7 items in total; 3 or more earns these points.
pass Describes itself 10/10
94 characters; more than 30 earns these points.

Tools · 7

x402_search

Use this to find a pay-per-call x402 API for a given task, network or price cap before calling it (mostly USDC on Base; check each row's network and asset, some are testnet or other assets). Searches …

x402_service

Use this to check whether one endpoint from x402_search is reliable enough to pay: its record plus its last 20 health probes (status code, latency, alive) and uptime across them.

x402_index_stats

Use this to see how much this index covers (it is a subset of the x402 market, not all of it) and to sanity-check x402_search coverage before relying on it. Summary of the index: totals, how many endp…

x402_demand

Use this to answer "is anyone actually paying for x402 APIs today" with settled on-chain numbers instead of listings. Market-level demand signal for the x402 ecosystem, verified against on-chain USDC …

x402_probe

Use this to check a URL you are about to pay (or one you operate) for a well-formed x402 challenge before sending funds; a challenge is no guarantee the service delivers. Makes ONE live unpaid request…

sudoku_puzzle

Use this when a user wants a sudoku to play or print, or an app needs a verified puzzle at a named difficulty. Generates ONE sudoku puzzle with a unique solution, 180-degree symmetry, graded by the so…

quietforge_pricing

Price-check Quietforge's paid x402 HTTP routes before paying (free read-only list, not tools here): convert docx, xlsx, pptx, csv to pdf; PDF text; URL/HTML to PNG; sudoku books; manuscript typesettin…

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://qf-api.quietforge-studio.workers.dev/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "quietforge_x402_tools": {
      "url": "https://qf-api.quietforge-studio.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}