# SiteSignal Public OpenAPI JSON Inventory

> SiteSignal Public OpenAPI JSON Inventory is a paid API for AI agents from holder-victor-nova-mag.trycloudflare.com, paid per call via x402, $0.03/call, status down (last checked 2026-09-15).

Fetches and inventories the structure and contents of a public OpenAPI 3.x or Swagger 2.0 JSON document from a given URL

## Facts

- Endpoint: GET https://holder-victor-nova-mag.trycloudflare.com/x402/openapi-inventory
- Price: $0.03/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-public-openapi-json-inventory-09ad8bee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Kc1kA4UDiQnvkNEDqNKyr

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 sitesignal-public-openapi-json-inventory-09ad8bee
```

Example prompt: Can you fetch and inventory all the endpoints and schemas from this OpenAPI spec at https://petstore3.swagger.io/api/v3/openapi.json?

## When to prefer this

Use this endpoint when you need to programmatically discover and inventory the structure of a public OpenAPI or Swagger JSON specification document. It is ideal for agents that need to understand what endpoints a third-party API offers without manually reading documentation. Prefer this over generic HTTP fetchers when the target is specifically an OpenAPI/Swagger JSON file and structured inventory output is needed.

## Known failure modes

- URL does not point to a valid OpenAPI 3.x or Swagger 2.0 JSON document — returns parse error or empty inventory
- Target URL is unreachable or returns non-200 status — request fails with connectivity error
- Document is too large or complex — may return partial or truncated inventory
- URL points to a YAML spec rather than JSON — may not be supported
- Payment of $0.03 USDC not provided or rejected — 402 Payment Required response

## How this service works

Returns inventory data from an OpenAPI-backed inventory service.

## Output

Returns structured inventory data derived from the OpenAPI JSON document, including discovered endpoints, operations, schemas, and other spec-level metadata found at the provided public URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "Public OpenAPI 3.x or Swagger 2.0 JSON document."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitesignal-public-openapi-json-inventory-09ad8bee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from holder-victor-nova-mag.trycloudflare.com](https://www.zero.xyz/host/holder-victor-nova-mag.trycloudflare.com/llms.txt)