# Superhighway Web Search for AI Agents

> Superhighway Web Search for AI Agents is a paid API for AI agents from superhighway.walls.sh, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).

Searches the live web and retrieves recent news or any page as clean markdown, optimized for AI agent consumption

## Facts

- Endpoint: GET https://superhighway.walls.sh/fx
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/superhighway-web-search-for-ai-agents-b47d3c3d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EsGPMZ682Ij_X1hx0fv4i

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 superhighway-web-search-for-ai-agents-b47d3c3d
```

Example prompt: Search the live web for the latest news on OpenAI's new model releases and give me the results as clean text I can read through.

## When to prefer this

Choose this endpoint when an AI agent needs real-time web information, recent news, or the ability to read arbitrary web pages as clean markdown — especially in pay-per-call contexts where a free tier and low per-call cost ($0.001 USDC) are desirable over subscription-based search APIs.

## Known failure modes

- URL not reachable or returns non-200 status
- Search query returns no results
- Page behind paywall or login wall cannot be accessed
- Rate limit exceeded
- Payment not accepted or insufficient balance

## How this service works

Web search built for AI agents. Search the live web, pull recent news, and read any page as clean markdown — pay per call, free tier to start.

## Output

Returns live web search results or the content of a specific URL rendered as clean markdown, suitable for direct consumption by AI agents without HTML noise.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "from"
 ],
 "properties": {
  "to": {
   "type": "string",
   "description": "Target currency; omit to get all rates for the base."
  },
  "from": {
   "type": "string",
   "description": "Base currency, 3-letter code (e.g. USD)."
  },
  "amount": {
   "type": "number",
   "description": "Amount to convert (default 1)."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/superhighway-web-search-for-ai-agents-b47d3c3d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from superhighway.walls.sh](https://www.zero.xyz/host/superhighway.walls.sh/llms.txt)