# NERO Chain Documentation

NERO Chain is a Layer-1 blockchain with native account abstraction, paymaster-based gas sponsorship, and Web2-friendly authentication (social logins, password-based security, MetaMask). These docs cover the protocol architecture, developer tools, and integration tutorials.

## Start here

- [Introduction](https://docs.nerochain.io/en/getting-started/introduction.md) — what NERO is and why it exists
- [dApp architecture](https://docs.nerochain.io/en/getting-started/nero-dapp-architecture.md) — how the components fit together
- [Key features](https://docs.nerochain.io/en/getting-started/key-features.md) — the capabilities you can build on

## Build

- [Developer Tools](https://docs.nerochain.io/en/developer-tools) — Paymaster API, UserOp SDK, AA Platform, AA Wallet UI
- [Cookbook](https://docs.nerochain.io/en/tutorials) — deploy your first contract, send gasless transactions, integrate AA wallets
- [Paymaster OpenAPI](https://docs.nerochain.io/specs/paymaster-openapi.yaml)

## Learn

- [White Paper](https://docs.nerochain.io/en/core-concepts) — architecture, consensus, data availability, fee sharing, native account abstraction
- [Node Validators](https://docs.nerochain.io/en/node-validators) — run a NERO validator
- [FAQ](https://docs.nerochain.io/en/faq.md)

## For AI agents

- [AI resources hub](https://docs.nerochain.io/en/ai-resources) — MCP endpoint, bundles, install snippets
- [llms.txt](https://docs.nerochain.io/llms.txt) — curated index
- [llms-full.txt](https://docs.nerochain.io/llms-full.txt) — full corpus
- [site-index.json](https://docs.nerochain.io/site-index.json) — metadata for every page