About these docs

Avail is a modular blockchain stack. It is split into two products, and this site documents both of them.

Avail DA is a data availability layer. Rollups and other chains post their transaction data to Avail DA and can prove that the data was published, without every participant having to download all of it. The docs cover submitting and reading data, running full nodes and validators, light clients, network endpoints and chain specs, and the node API across TypeScript, Rust and Go.

Avail Nexus is a cross-chain unification layer. It gives applications a single balance and a single transaction flow across many chains, through an SDK or through drop-in UI widgets. The docs cover the SDK reference, bridging, swaps, supported chains and tokens, and the widget components.

Content is split by product: everything under /docs/da is Avail DA, and everything under /docs/nexus is Avail Nexus. Each product has its own Get Started path, conceptual material, and API reference.

These docs are published in machine-readable form as well as HTML. /llms.txt is an intent-based index of the whole site, with per-product dumps at /llms-da.txt and /llms-nexus.txt. Any documentation URL returns clean markdown if you append .md to it or send an Accept: text/markdown header, and structured reference data is available at /api/reference.json.

Every page has a feedback control, and the docs are open source. If something here is wrong or missing, please tell us — see Contact for the ways to reach the team.