#281 · Developer Tool

OpenAPI Path Extractor

Turn an OpenAPI JSON document into a compact route inventory before reviewing handlers or writing client code. The extractor walks every Path Item, keeps only standard HTTP operation keys, and reports method, path, operation ID, tags, and parameter count. Path-level parameters are included in the count alongside operation-level parameters. The output is tab-separated, so it can be pasted into a spreadsheet or compared in a pull request without carrying the full specification.

Developer Input

OpenAPI JSON
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How to use this developer tool

  1. Paste a JSON-formatted API document or load the included sample.
  2. Check that the document shape matches the label above the editor.
  3. Select “Extract Paths” or press Ctrl/Cmd + Enter.
  4. Review the summary and download the copy-ready result.

What this developer tool does

The extractor enumerates real HTTP operations under the paths object and produces one stable, method-aware row per operation.

Non-operation Path Item fields such as summary, description, servers, and parameters are not mistaken for HTTP methods.

Rows are sorted by path and method to make changes easier to scan.

Example

The Sample button loads a small specification chosen for this operation. Running it produces the same structured fields shown in the output panel.

{
  "openapi": "3.0.3",
  "info": {
    "title": "Pet API",
    "version": "1.0.0"
  },
  "paths": {
    "/pets": {
      "get": {
        "operationId": "listPets",
        "tags": [
          "pets"
        ],
        "responses": {
          "200": {
            "description": "OK"
          }
        }
      },
      "post": {
        "operationId": "createPet",
        "responses": {
          "201": {
            "description": "Created"
          }
        }
      }
    },
    "/pets/{id}": {
      "get": {
        "operationId": "getPet",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "required": true,
            "schema": {
     
…

Use cases

  • Review an API contract during a pull request.
  • Prepare documentation or deterministic test fixtures.
  • Find migration work before changing generators or clients.
  • Export a focused report without sharing the source document.

Tips for reliable output

  • Bundle remote references before running the page.
  • Keep operation IDs stable across published versions.
  • Prefer explicit examples for domain-specific values.
  • Validate the complete document after applying generated output.
  • Commit the original specification before a conversion.

Processing details

The document is parsed as JSON, then each Path Item is checked against the OpenAPI HTTP method set. Parameter counts combine path-level and operation-level arrays.

JSON input only. The extractor does not resolve external $ref targets or validate whether each operation is semantically complete.

Frequently asked questions

Does this page accept YAML OpenAPI files?

No. This browser-only implementation accepts JSON so parsing behavior stays predictable without loading an external YAML library. Convert YAML to JSON first.

Are external $ref URLs resolved?

No. Local JSON Pointer references are handled where the operation needs them, but remote references are not fetched.

Does the result replace a full OpenAPI validator?

No. OpenAPI Path Extractor performs its documented transformation or audit. Use a standards-aware validator before publishing a specification.

Is the specification uploaded to a server?

No. Processing runs in the current browser tab. The page does not send the pasted document to an API.

Can I download the result?

Yes. Run the tool, then use Download for the primary output or the JSON and CSV buttons when those structured exports are available.

Input contract

ItemRequirement
FormatJSON object
ExecutionLocal browser
Remote refsNot fetched

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