Claude Opus 5.5 API

Find Claude Opus 5.5 model IDs, request examples, and current availability on ModelPort.

Call GET /v1/models with your key and check available before submitting.

Send a text request

curl "https://api.apimodel.store/v1/chat/completions" \
  -H "Authorization: Bearer $MODELPORT_API_KEY" \
  -H "Idempotency-Key: YOUR_UNIQUE_REQUEST_KEY" \
  -H "Content-Type: application/json" \
  --data '{"model":"claude-opus-5-5","messages":[{"role":"user","content":"Reply with one short sentence."}],"max_tokens":128}'

Text generation API