MCP server

Quietforge x402 Tools

io.github.quietforgestudio/x402-tools

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Free tools: x402 endpoint directory + probe, on-chain x402 demand signal, sudoku, API pricing.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

7

Token cost

About 1,682 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http x402-tools https://qf-api.quietforge-studio.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add x402-tools https://qf-api.quietforge-studio.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"x402-tools","server_url":"https://qf-api.quietforge-studio.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"x402-tools","server_url":"https://qf-api.quietforge-studio.workers.dev/mcp"}

Tools

• quietforge_pricing ~134 tokens
  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 typesetting; crosswords; family trees from GEDCOM; dataset quality audits; x402 index API. USD prices, pay-to
• sudoku_puzzle ~236 tokens
  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 solving techniques it needs (easy | medium | hard | expert). Returns 81-char puzzle and solution strin
• x402_demand ~226 tokens
  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 settlement on Base rather than self-reported call counts: how many seller addresses were paid in the
• x402_index_stats ~121 tokens
  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 endpoints answered on the last probe, counts per network and per source, and when the crawl ran.
• x402_probe ~302 tokens
  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 to a public http(s) URL and reports whether it is an x402 endpoint: status code, latency, alive fla
• x402_search ~544 tokens
  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 a health-probed directory of live x402 pay-per-call HTTP endpoints on Base, Solana and other network
• x402_service ~119 tokens
  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.

Browse

• GitHub tools
• Web scraping
• Website monitoring
• PDF tools
• Spreadsheets

Related MCP servers

• Agent Zero — ERC-8004 Trust Filter
  Trust filter for ERC-8004: only ~3.8% of x402 endpoints hit 5+ payers/30d. Free MCP; x402 upgrade.
• FreeTier Agent API
  x402 or card pay-per-call: invoice JSON, DNS, whois, SSL, geocode, tokens. Setup recipes on website
• Tensorust
  Receipts-first data: real crates.io downloads, dated LLM API prices, sourced answers, free dev tools
• agenteconomy.cloud
  x402 seller trust for AI agents: verify on-chain revenue, check delivery, diagnose listings.
• DartzDabz AI agent tool directory
  Read-only search of 2,189 AI agent tools (MCP servers, x402 APIs) with daily automated trust scores.
• Borisinc Aegis
  Trust layer for the x402 economy - check any service before you pay. Scores, discovery, routing.
• Developer Utilities & Validators (Tanod)
  Cloud GPU prices per hour, plus developer helpers: hash, HMAC, JWT, IDs, JSON, cron, time zones.
• AgentWorld — Live AI Agent Economy
  Live AI agent economy on Base L2: agents, credit files, games, jobs, crypto news, x402 USDC tools.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.github.quietforgestudio/x402-tools.svg)](https://aptlynx.net/servers/io.github.quietforgestudio/x402-tools)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents