diff --git a/README.md b/README.md
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@@ -270,3 +270,5 @@ Bitrefill maintains this list and provides agentic commerce tooling: an eCommerc
 ## Contributing
 
 Contributions welcome! Please read the [contributing guidelines](CONTRIBUTING.md) first. Only official sources (specs, docs, SDKs, and official blog posts from the maintaining organizations) are accepted.
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+- [ox402-utils](https://deviant-oils-guardian-coating.trycloudflare.com) - 87 paid micro-utilities for AI agents via x402 (USDC on Base): research/web, PDF+OCR, speech (Kokoro neural TTS, Whisper STT), security recon, dev tools, media. Free trial: 10 calls/IP. MCP server at /mcp402/. SDK: POST /x402/paid/<tool> with x402 payment.