Anthropic HTTP gốc

curl https://api.orcarouter.ai/v1/messages \
  -H "Authorization: Bearer sk-orca-..." \
  -H "Content-Type: application/json" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "anthropic/claude-sonnet-4.6",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

curl ... -d '{... "stream": true}'

event: message_start
data: {...}

event: content_block_delta
data: {...}

event: message_stop
data: {...}