# aisearch — Cited AI Web Search with x402 Payments

> aisearch — Cited AI Web Search with x402 Payments is a paid API for AI agents from aisearch.x.c00l.site, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).

Performs a multi-step web search and returns both raw results and an AI-synthesised, citation-backed Markdown research report, paid per call in USDC via x402.

## Facts

- Endpoint: POST https://aisearch.x.c00l.site/research
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aisearch-cited-ai-web-search-with-x402-payments-1e5ee8eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AvOkYF80pLumD-151f25E

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 aisearch-cited-ai-web-search-with-x402-payments-1e5ee8eb -d '<json body>'
```

Example prompt: Can you research how production-ready WebGPU is in 2026 and give me a proper cited report — I want sources, not just a summary off the top of your head.

## When to prefer this

Choose this endpoint when you need not just search results but a synthesised, properly cited analytical report — ideal when the answer requires reading and cross-referencing multiple web pages. Prefer it over raw search APIs when citation provenance matters, when the topic requires reasoning across sources, or when you need a ready-to-use Markdown document rather than a list of links. The pay-per-call x402 model means no account setup is required, making it suitable for agent workflows that need on-demand research without subscription overhead.

## Known failure modes

- Payment not received or x402 handshake fails — request rejected before processing
- Query too broad or ambiguous — report may be shallow or miss key sources
- Web pages return 403/blocked — pagesRead entries show ok:false reducing report quality
- Model context limit reached on very long queries — truncated output or fewer citations
- Network timeout during multi-step research — partial results or error response
- Rate limiting on underlying search APIs — fewer webSearches completed than requested

## How this service works

Web search that returns raw results plus an AI-synthesised, properly cited Markdown report. Pay per call in USDC over x402. No API key, no account.

## Output

A JSON object containing: the AI-generated Markdown report with inline citation numbers, a structured citations array (number, URL, quote, title), a list of pages read with word counts, usage stats (elapsed ms, pages read, web searches performed, token counts), a completion summary (turns, LLM calls, stop reason), and a list of open questions the research could not fully resolve.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "model": "claude-sonnet-5",
  "query": "How production-ready is WebGPU in 2026?",
  "usage": {
   "elapsedMs": 148000,
   "pagesRead": 6,
   "inputTokens": 412000,
   "webSearches": 14,
   "outputTokens": 9800,
   "thinkingTokens": 2400
  },
  "report": "## Executive summary\nWebGPU shipped in all three major engines[1]...",
  "citations": [
   {
    "n": 1,
    "url": "https://nodejs.org/en/about/previous-releases",
    "quote": "24.x LTS 'Krypton' entered Active LTS on 2025-11-06",
    "title": "Node.js Releases"
   }
  ],
  "pagesRead": [
   {
    "ok": true,
    "url": "https://gpuweb.github.io/gpuweb/",
    "title": "WebGPU",
    "words": 41000
   }
  ],
  "completion": {
   "turns": 4,
   "llmCalls": 5,
   "pageReads": 6,
   "stoppedBecause": "model_finished",
   "declaredComplete": true
  },
  "openQuestions": [
   "Will Safari ship compute shader parity in 2026?"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aisearch-cited-ai-web-search-with-x402-payments-1e5ee8eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aisearch.x.c00l.site](https://www.zero.xyz/host/aisearch.x.c00l.site/llms.txt)