API
OpenAPI Viewer
Paste or upload an OpenAPI document and inspect its endpoints without remote fetching, API calls, or token entry.
How this tool works
Explore local OpenAPI 3.x YAML or JSON by tag, path, operation, and schema.
The viewer supports OpenAPI 3.x and local references only; it does not execute requests or prove an implementation matches the contract.
Examples
- Browse a synthetic Orders API.
- Search operations by summary.
- Inspect request and response schemas.
Common use cases
Common mistakes
- The viewer supports OpenAPI 3.x and local references only; it does not execute requests or prove an implementation matches the contract.
- Validate the output in the system that will consume it.
- Use synthetic data when sharing debugging evidence.
Privacy and limitations
Processing is local to this browser tab. Device, extension, clipboard, and shared-screen risks still apply, so redact secrets before using any browser tool.
Representative valid workflow
Valid example
Browse a synthetic Orders API.
Expected: Use the tool output only after validating it in the receiving system.
Failure workflow
Invalid/failure example
The viewer supports OpenAPI 3.x and local references only; it does not execute requests or prove an implementation matches the contract.
QA checklist
- Exercise a valid input.
- Exercise malformed or unsupported input.
- Verify copy or download output.
- Confirm the input remains local during the interaction.
Documented limitation
The viewer supports OpenAPI 3.x and local references only; it does not execute requests or prove an implementation matches the contract.
Invalid or unsafe assumption
Invalid/failure example
A Swagger 2.0 document or remote reference is outside this viewer's supported local OpenAPI 3.x workflow.
Mistakes to avoid
- Treating documentation as proof of live behavior.
- Entering credentials even though request execution is disabled.
- Assuming unresolved remote references were loaded.
Limits of this workflow
Only OpenAPI 3.0.x/3.1.x and local references are supported.
The viewer does not execute requests or validate a deployment.
Local-processing and privacy boundary
Specifications are parsed locally; remote URLs, API operations, and remote references are never fetched.
Practical workflow
- Paste or upload a synthetic/local specification.
- Resolve syntax and structure issues.
- Search and inspect operations and schemas.
- Compare documented behavior with separate API tests.
Official references
FAQ
Does the OpenAPI Viewer upload my input?
No. The operation runs in the browser and does not send tool input to a DevPouch processing service.
What are the limits of the OpenAPI Viewer?
The viewer supports OpenAPI 3.x and local references only; it does not execute requests or prove an implementation matches the contract.
Will the viewer call endpoints from the specification?
No. Try-it-out, token entry, proxying, and remote fetching are intentionally absent.