LLM API Integration Guide
Hands-on tutorials · Price analysis · Integration solutions
What Is Function Calling? The Key Capability Behind AI Agents That Can Use APIs
Function calling is the key capability that lets AI agents use external tools and APIs. This guide explains how it works, when to use it, common implementation mistakes, and how to test it with APIBox.
How to Connect Dify to APIBox: Use Claude, Gemini & DeepSeek in Your Workflows
Step-by-step guide to connecting Dify to APIBox. Access Claude, GPT-5, Gemini, and DeepSeek through a single OpenAI-compatible endpoint—no region restrictions, at roughly 1/7 the official cost.
What Is OpenAI-Compatible API? The Standard Powering Every AI App
OpenAI-compatible API is the de facto standard interface for large language models. This guide explains what it is, how it works, and why almost every AI tool supports it—including how to use it with APIBox.
How to Fix Anthropic APIConnectionError: A Practical Troubleshooting Guide
A practical guide to fixing Anthropic APIConnectionError, covering network failures, timeout settings, environment variables, base_url mistakes, and more stable integration paths.
How to Fix DeepSeek API 429, 503, and Timeout Errors
A practical troubleshooting guide for developers hitting DeepSeek API 429, 503, and timeout errors, with a focus on rate limits, concurrency, retries, and more stable access patterns.
Claude API Migration Guide: Move from the Official API with Minimal Code Changes
A practical Claude API migration guide for teams that want to move away from the official Anthropic endpoint with minimal code changes and clear validation steps.
How to Use the Gemini API in China: 2026 Practical Integration Guide
A practical guide for developers in China who want to use the Gemini API with lower setup friction, simpler payment, and OpenAI-compatible integration.
DeepSeek API Unstable? Fix Rate Limits and Save Money with an Aggregated Relay
DeepSeek's official API frequently hits 429 rate limit errors and suffers outages during peak hours. This guide shows how to use APIBox's multi-source load-balanced relay for reliable DeepSeek access at lower cost.
GPT-5 API in China: Cheapest Access with CNY Payment — No Foreign Card Needed
GPT-5 API is blocked in China and requires a foreign credit card to pay. APIBox solves both problems: direct China access and CNY top-up via Alipay, with prices significantly below OpenAI official rates.