LLM API Integration Guides
Hands-on tutorials · Pricing analysis · Integration guides
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 Pricing and Token Groups
Understand APIBox pricing tiers, token group multipliers, and volume discounts. Learn how to save up to 85% on Claude, GPT, and DeepSeek official API rates.
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.
How to Pay for the OpenAI API Without a Foreign Credit Card
A practical guide for developers who want to use OpenAI-style APIs without relying on a foreign credit card, with a focus on billing friction, cost visibility, and integration simplicity.