# 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, $0.005/call, status healthy (last checked 2026-10-12, last successful call 2026-10-08).

Searches the live web, retrieves recent news, and returns page content as clean markdown for a given research query

## Facts

- Endpoint: GET https://superhighway.walls.sh/research?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: healthy
- Last checked: 2026-10-12
- Last successful call: 2026-10-08
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/superhighway-web-search-for-ai-agents-752a3e82
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gdlDoZrnGG5d90B8XK_G1

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-752a3e82
```

Example prompt: Search the live web for the latest news on OpenAI's GPT-5 release — read the top 3 results and give me the content as clean text, focusing only on pages from techcrunch.com and theverge.com.

## When to prefer this

Use this endpoint when an agent needs live, up-to-date web information that is not available in a training dataset — especially for recent news, current events, or domain-restricted research. Prefer this over static knowledge bases when freshness matters, and over general scraping tools when you want clean markdown output ready for LLM consumption at a low per-call cost.

## Known failure modes

- No results found for the query — empty or minimal response
- Requested domains in allowlist have no matching results, falls back to all results
- Query parameter missing — returns 400 error
- Rate limit or payment failure — returns 402 payment required
- Target page is paywalled or inaccessible — partial or no content returned
- Pages value out of range (less than 1 or greater than 3) — returns validation error

## 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

Clean markdown content extracted from the top web pages matching the query, including recent news and live web results, limited to 1–3 pages as specified

## 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": "The question or topic to research."
      },
      "pages": {
       "type": "integer",
       "default": 2,
       "maximum": 3,
       "minimum": 1,
       "description": "How many top results to read (1–3)."
      },
      "domains": {
       "type": "string",
       "description": "Comma-separated domain allowlist — restrict page reading to these domains (e.g. nih.gov,pubmed.ncbi.nlm.nih.gov). Falls back to all results if none match."
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/superhighway-web-search-for-ai-agents-752a3e82/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)