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curl / HTTP

Anthropic OpenAI

Call the API directly.

Base URL

choose by protocol (below)

API Key

sk-... (create in Console → API Keys)

Recommended

claude-opus-4-8 · claude-sonnet-4-6 · claude-haiku-4-5

Setup steps

Anthropic protocol (/v1/messages):

curl https://llmapi.pro/v1/messages \
  -H "x-api-key: sk-YOUR_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{"model":"claude-opus-4-8","max_tokens":1024,"messages":[{"role":"user","content":"Hello"}]}'

OpenAI protocol (/v1/chat/completions):

curl https://llmapi.pro/v1/chat/completions \
  -H "Authorization: Bearer sk-YOUR_KEY" \
  -H "content-type: application/json" \
  -d '{"model":"claude-opus-4-8","messages":[{"role":"user","content":"Hello"}]}'

Client not listed? Any "OpenAI-compatible" app works: Base URL = https://llmapi.pro/v1, key = your sk-..., type the model name. Or email [email protected].

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