Configure your LLM API request visually — choose a provider, model, and parameters, then copy production-ready code in cURL, Python, Node.js, or PHP. No account needed.
Build your request here, then estimate costs or optimize your prompts.
This tool generates sample code. Tokonomics tracks your actual token usage and costs in production — with budget alerts and hard caps.
Start Free →No. This tool generates code you can copy and run locally with your own API key. Nothing is sent to any LLM provider from this page. Replace YOUR_API_KEY in the generated code with your actual key.
OpenAI uses a messages array with role/content pairs sent to /v1/chat/completions. Anthropic uses a separate system parameter and sends messages to /v1/messages with a required max_tokens field. This tool handles these differences automatically.
Costs vary by model: GPT-4o costs $2.50 per million input tokens, while GPT-4o-mini costs $0.15/M — a 17x difference. Use our cost calculator to estimate monthly spend based on your specific volume and model choice.
For most use cases: OpenAI (GPT-4o-mini) for cost efficiency, Anthropic (Claude Sonnet) for complex reasoning, DeepSeek for budget-conscious teams (90% cheaper than GPT-4o). See our cheapest LLM guide for detailed comparisons.
The budget-first AI cost metering proxy for any stack. Track every LLM token, set budget alerts, and never get surprised by your AI bill again.