Anthropic API provides direct access to Claude models via REST: Messages API, tool use, vision, streaming, token counting, batches, and files. Auth via x-api-key header. Pay-per-token API pricing (separate from free Claude chat tier). Docs: https://docs.anthropic.com (redirects to https://platform.claude.com/docs). Base: https://api.anthropic.com.
Trust signals
Pricing
FREEMIUM
Auth
API_KEY
CORS
Yes
Rate limit
Pay-per-token; varies by model
Health
179ms
Trust score
97 (A)
Excellent production-readiness signals.
Links
- Homepageanthropic.com
- Documentationdocs.anthropic.com/
- Base URLdocs.anthropic.com/
Integration checklist
- Auth is API_KEY— no credit card required
- CORS enabled — callable directly from browsers.
- Rate limit: Pay-per-token; varies by model