First request - MESHROUTER

MESH keeps the OpenAI request shape and adds receipt headers, fallback routing, and per-call privacy classes.

curl https://api.meshrouter.app/v1/chat/completions \
  -H "Authorization: Bearer $MESH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mesh/claude-sonnet-4.5",
    "models": ["mesh/claude-opus-4.5", "mesh/llama-4-maverick"],
    "route": "fallback",
    "messages": [{ "role": "user", "content": "Summarize this document." }]
  }'

Read usage.cost in JSON responses and x-mesh-receipt-id in every routed response.