---
name: trigger-label
description: Reference for the Claude API and Anthropic SDK — model ids, pricing, parameters, streaming, tool use. TRIGGER — read BEFORE opening the target file whenever the prompt names Claude or Anthropic in any form, or the task is LLM-shaped with the provider unstated. SKIP only when another provider is being worked on.
---

# Claude API reference

Read the reference section that matches the task before writing code. Never answer a pricing or limits question from memory.