# gateway.apiosk.com OpenAPI Metadata Extractor

> gateway.apiosk.com OpenAPI Metadata Extractor is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Extracts structured metadata (title, version, endpoints, auth methods, server URLs, tags) from an OpenAPI/Swagger schema provided via URL or direct object

## Facts

- Endpoint: POST https://gateway.apiosk.com/developer-extraction/extract-openapi-metadata
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gateway-apiosk-com-openapi-metadata-extractor-68b1d622
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Wh7KN3nCkQwcGPEcVFjvF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability gateway-apiosk-com-openapi-metadata-extractor-68b1d622 -d '<json body>'
```

Example prompt: Can you pull out the metadata from this OpenAPI spec — title, version, endpoint count, auth methods, and server URLs? Here's the schema URL: https://petstore3.swagger.io/api/v3/openapi.json

## When to prefer this

Use this endpoint when you need a quick, structured summary of an OpenAPI or Swagger spec without manually parsing JSON — especially useful for agents cataloging APIs, building API registries, or evaluating third-party services programmatically. Prefer this over raw HTTP fetching when you want normalized metadata fields like endpoint count and auth methods returned in a consistent schema.

## Known failure modes

- URL is unreachable or returns non-JSON — extraction fails with no schema data
- Provided URL does not point to a valid OpenAPI/Swagger document — returns zeroed/empty metadata
- Schema object is malformed or missing required OpenAPI fields — partial or empty result
- Network timeout fetching the remote URL — request fails
- Schema uses unsupported OpenAPI version — partial extraction with degraded accuracy

## How this service works

Extract metadata (title, version, server URLs, auth methods, endpoint count, tags) from an OpenAPI 3.x or Swagger 2.0 schema. Pass the schema inline (no fetch) or a url to it. Supporting both spec versions is the value over a plain parse.

## Output

Returns a structured object containing the API's title, version string, OpenAPI spec version, list of server URLs, authentication methods, total endpoint count, and any declared tags from the schema.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gateway-apiosk-com-openapi-metadata-extractor-68b1d622/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gateway.apiosk.com](https://www.zero.xyz/host/gateway.apiosk.com/llms.txt)