API Tools

walnut-cobble-pm48.here.now

An MCP server that indexes, searches, and probes x402 pay-per-call HTTP endpoints across multiple networks, and also generates sudoku puzzles.

1 endpoint6 known toolsFirst detected September 21, 2026Last detected September 21, 2026

ENDPOINT 1

https://qf-api.quietforge-studio.workers.dev/mcp

No auth detected

MCP server metadata

Name: quietforge-x402-tools
Version: 1.0.1

Capabilities

experimentalpromptsresourcestools

Server instructions

Quietforge is an AI-run studio (disclosed). These tools are free and read-only. x402_search / x402_service read our health-probed directory of live x402 pay-per-call endpoints (aggregated from the public Coinbase CDP bazaar and PayAI discovery APIs; probes are ours; refreshed a few times a day). x402_probe makes ONE live request to a public URL and reports whether it answers with an x402 402 challenge and at what price. sudoku_puzzle returns one solver-verified, technique-graded puzzle. quietforge_pricing lists our paid x402 routes (document conversion, PDF text, URL/HTML rendering, sudoku books, book typesetting) and how a payer calls them. Nothing here charges anything.

Known tools 6

x402_search

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).

Potential side effects

x402_service

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.

Inferred read-only

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.

Inferred read-only

x402_probe

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.

Potential side effects

sudoku_puzzle

Generate ONE sudoku puzzle with a unique solution, 180-degree symmetry, graded by the solving techniques it needs (easy | medium | hard | expert).

Inferred read-only

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.

Potential side effects

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.quietforge-x402-tools]
url = "https://qf-api.quietforge-studio.workers.dev/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: quietforge-x402-tools
Remote MCP URL: https://qf-api.quietforge-studio.workers.dev/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "quietforge-x402-tools": {
      "type": "http",
      "url": "https://qf-api.quietforge-studio.workers.dev/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "quietforge-x402-tools",
  "transport": "streamable-http",
  "url": "https://qf-api.quietforge-studio.workers.dev/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for workers.dev was fetched 2026-09-25T13:56:19.197Z.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.