# Superhighway Web Search — /case endpoint

> Superhighway Web Search — /case endpoint 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).

Converts input text to a web search or page-read result, returning clean markdown content from the live web

## Facts

- Endpoint: GET https://superhighway.walls.sh/case
- 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-case-endpoint-e54a1d96
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z_2QJn2bGcuDmMMWGSWUD

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-case-endpoint-e54a1d96
```

Example prompt: Search the live web for 'latest developments in quantum computing 2025' and give me the results as clean markdown.

## When to prefer this

Choose this endpoint when an AI agent needs live, up-to-date web content or news that isn't in its training data, especially when a pay-per-call micropayment model ($0.001 USDC) is acceptable and the result needs to be clean markdown ready for further processing.

## Known failure modes

- Empty or missing 'text' parameter returns a 400 validation error
- Paywalled or JavaScript-heavy pages may return incomplete or no content
- Rate limits may apply beyond the free tier, resulting in 429 errors
- Payment failure via x402 protocol results in a 402 Payment Required response
- Ambiguous queries may return irrelevant results

## 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 clean markdown-formatted content pulled from the live web — either a list of search results with snippets, recent news articles, or the full readable text of a web page — suitable for direct consumption by an AI agent.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "The text to convert."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/superhighway-web-search-case-endpoint-e54a1d96/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)