ModelSite Docs

ModelSite is an LLM API aggregator: one base_url, one API key, and you can call Claude, GPT, DeepSeek, GLM, Qwen, MiniMax and other major models. The platform handles authentication, billing, rate limiting, and multi-vendor failover for you.

Why ModelSite

• OpenAI & Anthropic compatibility — no SDK swap; just point base_url at https://api.modelsite.ai/v1.
• One key, every model — no need to register with each vendor separately.
• Automatic failover — transparent switch when a vendor fails, keeping your service available.
• Unified billing — a single invoice across token / cache / reasoning dimensions.

Quick start

curl https://api.modelsite.ai/v1/chat/completions \
  -H "Authorization: Bearer $MODELSITE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-sonnet-4.6","messages":[{"role":"user","content":"Hello"}]}'

→ Start with Get an API key.