# Arch Tools Web Search

> Arch Tools Web Search is a paid API for AI agents from archtools.dev, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-14).

Performs a web search and returns a configurable number of source results as JSON

## Facts

- Endpoint: POST https://archtools.dev/v1/tools/web-search
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arch-tools-web-search-65e55d42
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZA0egQWBU6oBQsgDQNrmv

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 arch-tools-web-search-65e55d42 -d '<json body>'
```

Example prompt: Search the web for the latest developments in quantum computing and give me the top 10 results.

## When to prefer this

Choose this endpoint when you need live, up-to-date web search results from the open internet, especially within an agent workflow that already uses the Arch Tools ecosystem (which includes complementary tools like extract-page, extract-entities, and sentiment-analysis). It is well-suited for retrieving current news, fact-checking, or gathering source URLs for further processing. Prefer it over static knowledge bases when recency of information matters.

## Known failure modes

- Empty or overly vague query may return poor-quality results
- Limit parameter set to 0 or invalid integer may cause a request error
- Query for very niche or obscure topics may return few or no results
- Service may return a 402 Payment Required if USDC payment is not attached or insufficient
- Rate limiting may occur under heavy usage

## How this service works

Arch Tools — web-search

## Output

A JSON object containing a list of web search results, each typically including a title, URL, and snippet/summary from the matched web page, up to the configured limit (default 5).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 5,
   "description": "Number of source results"
  },
  "query": {
   "type": "string",
   "description": "Search query"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arch-tools-web-search-65e55d42/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from archtools.dev](https://www.zero.xyz/host/archtools.dev/llms.txt)