# πŸ”§ Chain API

Welcome to the NULS AI Chain API documentation! This section provides comprehensive API documentation for developers who want to integrate with the NULS AI blockchain platform.

# 🎯 What You'll Find

The Chain API documentation covers all the interfaces and protocols you need to interact with the NULS AI blockchain, from basic queries to advanced smart contract interactions.

# πŸš€ Quick Start

# For New Developers

If you're new to NULS AI APIs, start with these essential guides:

  1. JSON-RPC API - Learn the core RPC interface
  2. RESTful API - Use HTTP-based API endpoints
  3. RPC Protocol - Understand the protocol specifications

# For Experienced Developers

If you're already familiar with blockchain APIs:

  1. Advanced RPC Methods - Advanced API features
  2. WebSocket Integration - Real-time data streaming
  3. Protocol Extensions - Custom protocol extensions

# πŸ“– API Categories

# πŸ“‘ Core APIs

Essential APIs for basic blockchain operations:

# πŸ”— Integration APIs

APIs for integrating with external systems:

# 🌐 Network APIs

APIs for network and consensus operations:

# 🎯 Developer Roles

# πŸ‘¨β€πŸ’» Frontend Developers

Focus: Web application integration

# πŸ”§ Backend Developers

Focus: Server-side integration

# πŸ—οΈ System Integrators

Focus: Enterprise system integration

# πŸ”§ Development Tools

# Essential Tools

  • NULS SDK - Official SDK for multiple languages
  • API Explorer - Interactive API testing tool
  • Postman Collection - Pre-configured API requests

# Development Resources

  • Code Examples - Sample code in multiple languages
  • API Reference - Complete API documentation
  • Testing Environment - Sandbox for API testing

# πŸ“š Learning Path

# Beginner Path (1-2 weeks)

  1. Week 1: Basic API concepts

  2. Week 2: Core operations

# Intermediate Path (2-4 weeks)

  1. Week 3-4: Advanced features

# Advanced Path (1-2 months)

  1. Month 1-2: Expert level
    • Deep dive into Cross-Chain APIs
    • Advanced protocol extensions
    • Custom API development

# πŸ› οΈ Common Use Cases

# Quick Reference

# Integration Patterns

# πŸ” API Reference

# Core Methods

  • Account Methods - Account creation, balance, and management
  • Transaction Methods - Transaction creation, signing, and broadcasting
  • Block Methods - Block information and validation
  • Contract Methods - Smart contract deployment and interaction

# Advanced Features

  • WebSocket Support - Real-time data streaming
  • Batch Operations - Multiple operations in single request
  • Error Handling - Comprehensive error codes and messages
  • Rate Limiting - API usage limits and best practices

# πŸ“Š API Performance

# Performance Metrics

  • Response Times - Typical response times for different operations
  • Throughput - Maximum requests per second
  • Availability - API uptime and reliability
  • Scalability - How APIs scale with load

# Best Practices

  • Caching Strategies - How to cache API responses
  • Connection Management - Managing API connections efficiently
  • Error Recovery - Handling API failures gracefully
  • Security - API security best practices

# πŸ”’ Security & Authentication

# Authentication Methods

  • API Keys - Simple authentication for basic operations
  • JWT Tokens - Secure token-based authentication
  • OAuth 2.0 - Standard OAuth authentication
  • Custom Authentication - Custom authentication schemes

# Security Features

  • HTTPS Only - All APIs use secure connections
  • Rate Limiting - Protection against abuse
  • Input Validation - Comprehensive input validation
  • Audit Logging - Complete audit trail for all operations

# πŸ“ž Getting Help

# Developer Support

  • API Documentation: Complete reference documentation
  • Code Examples: Sample code in multiple languages
  • SDK Documentation: Official SDK guides

# Community Support

# Enterprise Support

  • Technical Support: Dedicated support for enterprise users
  • Custom Integration: Help with custom integrations
  • Training: API training and workshops

# πŸ”„ API Updates

# Versioning

  • API Versioning: How we version our APIs
  • Migration Guides: How to upgrade to new versions
  • Deprecation Policy: Our deprecation and sunset policy

# Latest Updates

  • Release Notes: Latest API changes and improvements
  • New Features: Recently added API features
  • Breaking Changes: Important changes that may affect your code

πŸš€ Ready to Integrate?

Start building with NULS AI APIs today!

πŸ”§ Start Coding