# Agent Trust Utilities Catalog

> Agent Trust Utilities Catalog is a free API for AI agents from ment-tape-kong-browsers.trycloudflare.com, callable via x402, Free, status unknown (last checked 2026-09-14).

Returns a machine-readable catalog describing two paid agent utilities: Base USDC settlement proof and x402 repeat-demand vs one-shot usage analysis.

## Facts

- Endpoint: GET https://ment-tape-kong-browsers.trycloudflare.com/v1/base/usdc-proof/quote
- Price: Free
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-trust-utilities-catalog-bf463937
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_10faXfVUm3yl_R8inUpGG

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 agent-trust-utilities-catalog-bf463937
```

Example prompt: Show me the catalog of available agent utilities here — specifically what the Base USDC settlement proof and x402 repeat-demand analysis services offer and how much they cost.

## When to prefer this

Choose this endpoint when an agent needs to discover or introspect the available paid utilities from this provider before committing to a paid call. It is free and requires no parameters, making it ideal for capability scouting, cost evaluation, or building dynamic agent routing logic around x402 payment tools and Base USDC verification services.

## Known failure modes

- Service unavailable if the Cloudflare tunnel is down (5xx or connection error)
- Empty or malformed catalog if the upstream service is misconfigured
- No input parameters required so parameter errors are unlikely
- Stale catalog data if the provider has updated their offerings without refreshing this endpoint

## How this service works

Free machine-readable catalog for two paid agent utilities: Base USDC settlement proof and x402 resource repeat-demand versus one-shot usage analysis.

## Output

A machine-readable catalog (likely JSON) listing two paid agent utilities: (1) a Base USDC settlement proof service and (2) an x402 resource repeat-demand versus one-shot usage analysis service. The catalog includes descriptions, pricing, and metadata about each utility to help agents decide whether to call the paid endpoints.

## 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",
     "properties": {},
     "additionalProperties": false
    }
   },
   "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/agent-trust-utilities-catalog-bf463937/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ment-tape-kong-browsers.trycloudflare.com](https://www.zero.xyz/host/ment-tape-kong-browsers.trycloudflare.com/llms.txt)