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

# Developers and integrators

- [Contracts and protocol](https://docs.feel.cash/developers-and-integrators/contracts.md): Identify Feel.cash launches by chain, contract, onchain launch proof, and public API records. Review supported networks and protocol infrastructure.
- [Public API v1](https://docs.feel.cash/developers-and-integrators/api.md): Integrate Feel.cash Public API v1 to discover launches and retrieve coin data, using public endpoints, cursor pagination, and polling.
- [Launch with x402](https://docs.feel.cash/developers-and-integrators/x402-launches.md): Learn how AI agents launch coins on Feel.cash through x402 payments on Base, with supported chains, request formats, and launch constraints.
- [Integration guide](https://docs.feel.cash/developers-and-integrators/integration-guide.md): Integrate Feel.cash coins into wallets, exchanges, and indexers. Verify official launches using chain identity, API records, and onchain proof.
- [Brand assets](https://docs.feel.cash/developers-and-integrators/brand-assets.md): Download official Feel.cash logos, icons, and wordmarks for wallets, exchanges, explorers, and integrations, with guidance on product naming.
- [Partner Launch API](https://docs.feel.cash/developers-and-integrators/partner-launch-api.md): Review the Feel.cash Partner Launch API for approved teams, including authentication, supported chains, and one-call or prepare-and-execute launches.