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 Estimate LLM API Costs: Token Math, Pricing Tables, and Budgeting That Actually Works
LLM API costs are easy to underestimate. This guide explains token math, input/output pricing, multi-turn cost growth, retries, and model selection so developers can build realistic budgets and control spend.
APIBox User Tier and Pricing Rules
An explanation of the current APIBox Default, VIP, and SVIP tiers, including model access scope, upgrade rules, and cross-tier pricing multipliers.
LLM API Free Tier Guide 2026: How to Test OpenAI, Claude, Gemini, and DeepSeek Efficiently
A practical 2026 guide to testing LLM APIs with free tiers, covering OpenAI, Claude, Gemini, and DeepSeek, what free access is good for, and when to switch to a low-friction production setup.
CherryStudio Setup Guide (Desktop AI Client)
How to configure CherryStudio, a cross-platform desktop AI client. Connect to APIBox for an all-in-one chat interface.
Claude Code Installation Guide (macOS/Linux)
Install and configure Claude Code in 5 minutes using the official npm package. Learn how to bypass regional restrictions by pointing the API to APIBox.
Claude Code Installation Guide (Windows)
A complete guide to installing Claude Code on Windows 10/11 using PowerShell. Learn how to configure your environment to use APIBox for unblocked access.
Cline Extension Setup Guide (VSCode AI Assistant)
How to install the official Cline extension in VSCode and configure it with APIBox for high-performance AI coding.
OpenClaw Installation Guide
Learn how to install and configure OpenClaw, the open-source personal AI assistant platform. Connect it to APIBox for fast, unblocked LLM access.
Zero-Config Setup Guide via OpenCode
Use the built-in AI assistant in OpenCode to automatically configure your environment for Claude Code or OpenClaw via simple chat commands.