Zero Data Retention

Require ZDR on individual Wafer Serverless requests.

Serverless keys do not require Zero Data Retention (ZDR) by default. To require ZDR for a Serverless request, send Wafer-ZDR: required.

curl -sS "https://pass.wafer.ai/v1/chat/completions" \
  -H "Authorization: Bearer <YOUR_WAFER_API_KEY>" \
  -H "Wafer-ZDR: required" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "GLM-5.1",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

If the selected model supports ZDR, Wafer routes the request normally. If the selected model does not support ZDR, Wafer rejects the request before routing it upstream and returns model_zdr_not_supported.

Some GUI harnesses do not expose custom request headers. For those apps, use a harness-specific custom header path when available (for example, Claude Code’s ANTHROPIC_CUSTOM_HEADERS) so ZDR can still be enforced per request.