{
  "markdown": "# NanoTools — x402 pay-per-call API for AI agents\n\n**44 tools. No signup. No API keys. Pure [x402](https://www.x402.org/) micropayments on Base mainnet.**\n\nAgents pay per call with USDC ($0.001–$0.03) via the x402 protocol — the HTTP 402 flow is fully automatic\nwith any x402-capable client/wallet.\n\n## 🔗 Discovery endpoints\n\n| What | URL |\n|---|---|\n| Tool catalog for LLMs | https://nano.stacknodehost.com/llms.txt |\n| OpenAPI 3 spec (x402 prices in extensions) | https://nano.stacknodehost.com/openapi.json |\n| x402 discovery | https://nano.stacknodehost.com/.well-known/x402 |\n| A2A agent card | https://nano.stacknodehost.com/.well-known/agent.json |\n| Health | https://nano.stacknodehost.com/health |\n\n## 🧰 Tool groups\n\n- **Trends & SERP** — Google Trends (timeline, related queries, regions), Google SERP, Yandex SERP, wordstat regions\n- **SEO** — meta audit, robots.txt audit, readability audit, IndexNow submit\n- **Chromium tools** — page screenshot, page PDF, OG-image generation (real headless Chromium)\n- **Data** — weather (open-meteo), FX rates (ECB), whois (RDAP), RSS parse\n- **Utilities** — QR, JWT, cron parse, hash, uuid, base64, url encode, slug, datetime, ... ($0.001 tier)\n\n## 💳 Payment\n\nx402 `ExactEvmScheme` on **Base (eip155:8453)**, payTo `0x4F568Bf0cE8537CBE7a0DAF1A43C955e0a648db9`,\nfacilitator `https://facilitator.openx402.ai`. Prices are declared per-tool in the discovery endpoints\n(`x-price-usd` extension in OpenAPI).\n\n## 🚀 Quick start with any x402 client\n\nPoint your agent at any tool URL from `llms.txt` — the first call returns `402` with payment requirements,\nthe client signs USDC, retries with `X-PAYMENT` header and gets the result.\n",
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  "sha": "95610cc12cfaba53df80420af9682af2d13bd3ff9a4fb55071505bc34699484a",
  "repo_slug": "nanotools-x402/nanotools",
  "fonte": "repo",
  "truncated": false,
  "api": "https://agentalog.com/api/listings/mcp_io_github_nanotools_x402_nanotools_decb3e7e/readme"
}