Anthropic API
Access 7 Anthropic modelsthrough YepAPI's unified API. One API key, OpenAI-compatible endpoint, pay-per-token pricing.
No credit card required. Takes 30 seconds.
Claude Sonnet 4
Text GenerationAccess Claude Sonnet 4 through one API key. Anthropic's best balance of speed and intelligence.
Claude Haiku 4
Text GenerationAccess Claude Haiku 4 through one API key. Anthropic's fastest model for high-volume tasks.
Claude Opus 4.7
Text GenerationAccess Claude Opus 4.7 through one API key. Anthropic's newest and most intelligent model.
Claude Opus 4.6
Text GenerationAccess Claude Opus 4.6 through one API key. Anthropic's previous-generation flagship.
Claude Sonnet 4.6
Text GenerationAccess Claude Sonnet 4.6 through one API key. Anthropic's latest balanced model with 1M context.
Claude Opus 4.6 Fast
Text GenerationAccess Claude Opus 4.6 Fast through one API key. Fastest Opus with 128K output.
Claude Sonnet 4.5
Text GenerationAccess Claude Sonnet 4.5 through one API key. Previous-gen Anthropic flagship.
Start using Anthropic models in 30 seconds
$5 free credit on signup. No credit card required.
Anthropic API through YepAPI
YepAPI provides access to Anthropic models through a unified API endpoint. Instead of managing a separate Anthropic API key and billing account, use your single YepAPI key to call any Anthropic model alongside 60+ other AI models from OpenAI, Anthropic, Google, Meta, and more.
All Anthropic models use the same OpenAI-compatible request format. Switch between models by changing the model parameter — no SDK changes, no code rewrites. Pay per token with no monthly minimums.
Ready to use Anthropic models?
7 Anthropic models included with one API key. $5 free credit on signup. No credit card required.