provider · Anthropic

Claude API

The Claude API is Anthropic's developer API: raw programmatic access to the Claude models from your own code. You call client.messages.create() via the anthropic SDK (Python or TypeScript) or the REST endpoint, choosing the model, shaping every prompt, and paying per token across the Haiku, Sonnet, and Opus tiers. It gives you the most control of any Claude product — and the least scaffolding: there is no agent loop or memory unless you build it. For a biology student it is the tool for batch jobs, such as classifying 500 PubMed abstracts by method into structured JSON from your own script.

  • byok
  • cloud
  • Commercial

What it can help with

  • language model api
  • text generation
  • batch processing
  • json extraction
  • python sdk
  • typescript client
  • rest endpoint
  • token billing
  • prompt engineering