JSON & Schemas
Provider Schema Compatibility Checker
Check strict tool schemas against dated OpenAI and Anthropic rules, with exact paths and unknown coverage.
Processed on our CPU server.Submitted input is processed for this run and is not stored.
2048 KiB limitInput
Result
A useful result starts here.
Paste your input or load an example,
then run the tool.
Supported formats & limitations
- Base-model strict tool rules only; not non-strict or fine-tuned modes. Root must explicitly be an object. Unknown keywords, regex grammar and references stay unknown.
- OpenAI: closed objects, all properties required, selected primitive/array/numeric constraints and documented size/depth limits. Anthropic: optional properties allowed, numerical/string bounds unsupported, minItems only 0/1.
- No API calls, automatic conversion, complete grammar certification or guarantee of model adherence. Rule date appears in findings and report.
- Sources: https://developers.openai.com/api/docs/guides/structured-outputs and https://platform.claude.com/docs/en/build-with-claude/structured-outputs
- Original input is preserved. Explicit exports only; nothing is submitted to a provider or training service.
- Submitted input is processed without history. Public release and MCP access remain tracked separately.
Execution budget: 5s; output limit: 4096 KiB. Browser worker startup has a separate 3s allowance.