# x402 Batch Quote Inspector

> x402 Batch Quote Inspector is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Fetches and inspects x402 payment quote metadata from one or more HTTP endpoints in a single batch request.

## Facts

- Endpoint: GET https://gpt55.558686.xyz/v1/tools/x402-batch-quote-inspector
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-batch-quote-inspector-ae4ed654
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fI89HR2OhnEpaycQKcVeU

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 x402-batch-quote-inspector-ae4ed654
```

Example prompt: Can you batch-inspect the x402 payment quotes for these three endpoints and tell me what each one charges and what currency they accept: https://api-a.example.com/v1/chat, https://api-b.example.com/v1/complete, https://api-c.example.com/v1/embed?

## When to prefer this

Use this endpoint when you need to audit, compare, or programmatically inspect x402 payment quotes from multiple HTTP endpoints in a single call rather than querying each one individually. Ideal for agents building payment-aware routing logic or monitoring x402 API pricing.

## Known failure modes

- One or more URLs are unreachable or return non-402 responses
- timeout_ms exceeded for slow endpoints
- Invalid or malformed URLs in the input array
- Upstream endpoint does not serve x402 payment headers
- Payment of $0.002 USDC not settled, blocking the request

## How this service works

Inspect up to 10 public x402 endpoints in one paid request, without paying the target endpoints. Returns per-endpoint quote status, schemes, amounts, network, asset, payTo, resource metadata, and aggregate buyer-readiness warnings. This deterministic endpoint does not call an upstream model. GET variant for agents, crawlers, and wallets that prefer query parameters over a JSON body. Pay up to $0.002 per request with x402 USDC on Base.

## Output

Returns a structured JSON object with ok status, tool name, and a summary of x402 payment quote data fetched from each provided URL, including pricing, currency, and fetch timestamps.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "urls": [
    "https://api.example.com/v1/status"
   ],
   "timeout_ms": 5000
  }
 }
}
```

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "additionalProperties": true
    },
    "queryParams": {
     "type": "object",
     "anyOf": [
      {
       "required": [
        "urls"
       ]
      },
      {
       "required": [
        "endpoints"
       ]
      }
     ],
     "properties": {
      "body": {
       "type": "object",
       "additionalProperties": true
      },
      "urls": {
       "type": "array",
       "items": {
        "type": "string",
        "maxLength": 2048,
        "minLength": 1
       },
       "maxItems": 10,
       "minItems": 1
      },
      "method": {
       "enum": [
        "GET",
        "POST",
        "PUT",
        "PATCH",
        "DELETE"
       ],
       "type": "string"
      },
      "endpoints": {
       "type": "array",
       "items": {
        "type": "string",
        "maxLength": 2048,
        "minLength": 1
       },
       "maxItems": 10,
       "minItems": 1
      },
      "timeout_ms": {
       "type": "integer",
       "maximum": 12000,
       "minimum": 1000
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "tool": {
       "type": "string"
      },
      "fetchedAt": {
       "type": "string"
      }
     },
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-batch-quote-inspector-ae4ed654/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gpt55.558686.xyz](https://www.zero.xyz/host/gpt55.558686.xyz/llms.txt)