OpenAPI explorer

List operations from a local API description.

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OpenAPI explorer processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Updated 2026-09-20

OpenAPI explorer explained

Browse a JSON OpenAPI 3.0 or 3.1 description as a list of methods, paths, summaries, parameter names and response codes. The tool never calls the described service, so an API document can be inspected offline.

Next: JSON formatter

A worked example

A get operation under /items becomes a GET /items row with its listed response codes. A deprecated flag appears explicitly rather than hiding the operation.

Before you use the result

JSON input only. This is an outline, not an OpenAPI compliance validator or an API client. References are displayed but not resolved; authentication and schema correctness are not inferred.

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ToolOctopus. “OpenAPI explorer.” Updated 2026-09-20. https://tooloctopus.com/openapi-explorer.

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