# Script Master Labs x402 Web Search API

> Script Master Labs x402 Web Search API is a paid API for AI agents from mcp-x402.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Performs a web search query and returns results, paid per-call in USDC via the x402 payment protocol on Base.

## Facts

- Endpoint: GET https://mcp-x402.onrender.com/x402/web-search
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/script-master-labs-x402-web-search-api-53e2ecae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E3K6yQy68S8fj09Vl12vd

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 script-master-labs-x402-web-search-api-53e2ecae
```

Example prompt: Search the web for the latest updates on U.S. federal housing assistance programs and give me the top 5 results.

## When to prefer this

Choose this endpoint when you need real-time web search results and are operating in a crypto-native or x402-enabled agent stack where micropayment-per-call billing in USDC is acceptable or preferred. It is particularly suited for agents that want pay-as-you-go access without API key subscriptions, and for use cases involving U.S. federal or government data alongside general web queries.

## Known failure modes

- Missing required 'q' query parameter returns a validation error
- Payment not settled via x402 results in a 402 Payment Required response
- Empty or overly broad queries may return low-relevance results
- Service may be rate-limited or unavailable on the Render free tier
- Response schema is minimally documented, so result structure may vary

## How this service works

Pay-per-call crypto, RWA, federal, SEC, Section 8/HUD housing, and compliance APIs via x402. Primary: USDC on Base (eip155:8453). Also accepts Global Dollar (USDG) on Robinhood Chain (eip155:4663) via sovereign X-PAYMENT-TX. Hyphen routes only (e.g. /x402/gas-tracker, /x402/pha-lookup, /x402/sec-8k). MARKETPLACE REVIEW: use free /x402/playground/* (no key, no payment). Production /x402/* returns 402 unless paid via x402 or X-Api-Market-Key / X-API-Key from seller dashboard.

## Output

Returns a set of web search results matching the query string, likely including page titles, URLs, and snippets. The number of results can be limited via the optional 'limit' parameter. Each call is billed $0.001 USDC via x402 on Base.

## 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": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string"
      },
      "limit": {
       "type": "integer"
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/script-master-labs-x402-web-search-api-53e2ecae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402.onrender.com](https://www.zero.xyz/host/mcp-x402.onrender.com/llms.txt)