# Web3 Identity API Documentation - LLM Context
# https://docs.web3identity.com/llms.txt

> Official documentation for the Web3 Identity API. 966 endpoints for ENS, DeFi, prices, wallets, and Web3 identity. This site explains how to use the API effectively.

## Documentation Structure

- **Getting Started** - Quick setup and first API call
- **Authentication** - SIWE, API keys, x402 payments
- **API Reference** - All endpoint categories
- **Guides** - Best practices, error handling, rate limits
- **Tutorials** - Build a price ticker, wallet tracker
- **Legal** - Terms, privacy, SLA

## Quick Links

| Section | URL | Purpose |
|---------|-----|---------|
| Quickstart | /docs/quickstart | First API call in 2 minutes |
| Authentication | /docs/auth/overview | Auth methods explained |
| API Reference | /docs/api | Endpoint documentation |
| x402 Payments | /docs/concepts/x402-payments | Pay-per-request guide |
| Rate Limits | /docs/concepts/rate-limits | Usage limits by tier |
| Error Handling | /docs/guides/error-handling | Handle errors gracefully |

## Key Concepts

### Authentication Tiers
1. **Anonymous** - 100 calls/day, no auth needed
2. **SIWE** - 200 calls/day, sign with wallet
3. **API Key** - 250 calls/day, include header
4. **x402** - Unlimited, pay per request

### Response Format
All APIs return JSON with `data`, `source`, `cached`, `timestamp` fields.

### Error Codes
- 400: Bad request
- 402: Payment required
- 404: Not found
- 429: Rate limited

## API Categories

- **ENS** - Name resolution, avatars, records
- **Prices** - Token prices, batch lookups
- **DeFi** - TVL, protocols, yields
- **Wallets** - Balances, transactions
- **Chains** - Multi-chain data
- **NFTs** - Collections, marketplaces
- **Social** - Farcaster, Lens

## Related Resources

- **API Base URL:** https://api.web3identity.com
- **OpenAPI Spec:** https://api.web3identity.com/openapi.json
- **Main Site:** https://web3identity.com
- **Support:** support@web3identity.com