# x402 Catalog Search

> x402 Catalog Search is a paid API for AI agents from bj7e26lfpo4fthvr35hczdipby.srv.us, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Searches across multiple x402 paid-API catalogs to discover endpoints matching a natural language capability query.

## Facts

- Endpoint: GET https://bj7e26lfpo4fthvr35hczdipby.srv.us/v1/x402-search
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-catalog-search-1987df69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xEBR-vSprDZ20AFXpDqCs

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-catalog-search-1987df69
```

Example prompt: Search the x402 catalog for any available paid endpoints that do FCC license lookup and show me up to 10 results with their prices.

## When to prefer this

Use this endpoint when an AI agent needs to dynamically discover which x402 paid APIs exist for a given capability at runtime, especially when the target service is not already known. It aggregates multiple x402 catalogs (bazaar, toll402, etc.) in a single call, making it more comprehensive than querying any single catalog. Prefer this over hardcoded endpoint lists when the space of available x402 tools is evolving or unknown.

## Known failure modes

- Missing required query parameter 'q' returns a 400 or schema validation error
- Payment not provided or insufficient USDC causes a 402 Payment Required response
- Upstream catalogs (bazaar, toll402) may be unavailable, returning partial or empty results
- Limit parameter out of range (outside 1-25) may be rejected or clamped
- Query too broad may return up to 25 low-relevance results requiring further filtering

## How this service works

Seven account-free paid tools for source integrity, x402 catalog search, preflight, liveness, routing, price drift, and batch verification.

## Output

A JSON object containing a list of matching endpoints (each with resource URL, price in USDC, description, network chain ID, and discovery sources), per-catalog metadata showing how many results each upstream catalog returned and their latency, the total number of unique results, and the search schema version used.

## 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": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "What capability you are looking for"
      },
      "limit": {
       "type": "string",
       "description": "Max results, 1-25, default 10"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "query": "fcc license lookup",
  "results": [
   {
    "network": "eip155:8453",
    "sources": [
     "bazaar",
     "toll402"
    ],
    "resource": "https://api.govparse.io/v1/fcc/licenses/search",
    "price_usdc": 1.25,
    "description": "FCC ULS licence search by company"
   }
  ],
  "sources": [
   {
    "ok": true,
    "catalog": "bazaar",
    "returned": 6,
    "latency_ms": 761,
    "upstream_filtered": true
   },
   {
    "ok": true,
    "catalog": "toll402",
    "returned": 0,
    "latency_ms": 1014,
    "upstream_filtered": true
   }
  ],
  "total_unique": 6,
  "searchVersion": "1.0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-catalog-search-1987df69/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bj7e26lfpo4fthvr35hczdipby.srv.us](https://www.zero.xyz/host/bj7e26lfpo4fthvr35hczdipby.srv.us/llms.txt)