Claude Fable 5.1 & GPT-6 Astra packages are live— install now and get the most powerful standards for your agent

open-api

API

OpenAPI specifications that stay true — generating from code, gating breaking changes in CI, and producing docs and SDKs from one source.

Pick the model family

Available for 11 model families. Same engineering substance in each; the structure and the injected defenses are tuned per family.

Claude

Deepseek

Gemini

Glm

Grok

Kimi

Minimax

Mistral

Open Ai

Qwen

Sarvam Ai