> For the complete documentation index, see [llms.txt](https://docs.carbonmark.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.carbonmark.com/carbonmark-x402.md).

# CARBONMARK x402 ENDPOINT

- [Introduction to Carbonmark's x402 Endpoint](https://docs.carbonmark.com/carbonmark-x402/carbonmark-x402.md)
- [Retire carbon with x402](https://docs.carbonmark.com/carbonmark-x402/retire-carbon-with-x402.md)
- [Gasless retirement (paid relay)](https://docs.carbonmark.com/carbonmark-x402/gasless-retirement-paid-relay.md)
- [Use x402 from an AI agent](https://docs.carbonmark.com/carbonmark-x402/use-x402-from-an-ai-agent.md)
- [x402 Reference](https://docs.carbonmark.com/carbonmark-x402/x402-reference.md)