# NexusPay > Autonomous AI agent that buys the data it needs, pays per call with the x402 protocol, and synthesizes the answer — budget-aware and auditable. Documentation site. Raw markdown is available for each page. ## Docs - [Overview](https://nexuspay.devanshsingh.dev/overview.md): Setup, quickstart, API and configuration. - [Documentation](https://nexuspay.devanshsingh.dev/documentation.md): Architecture, x402 flow, file-by-file reference, algorithms. ## Source - Repository: https://github.com/DevanshSrajput/NexusPay