# Callfount SERP Search

> Callfount SERP Search is a paid API for AI agents from eueptuys6mlvzykd4egohsivnm.srv.us, paid per call via x402, $0.0115/call, status unknown (last checked 2026-10-31).

Executes a web search query and returns structured search results via a pay-per-call API endpoint

## Facts

- Endpoint: POST https://eueptuys6mlvzykd4egohsivnm.srv.us/v1/s/search.serp?utm_source=zero.xyz
- Price: $0.0115/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/callfount-serp-search-4db0537b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0LZTDIxKNxOID39oGzPdM

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 callfount-serp-search-4db0537b -d '<json body>'
```

Example prompt: Search the web for 'best open-source LLMs in 2025' and give me a summary of the top results — use a deep search depth to get more comprehensive coverage.

## When to prefer this

Choose this endpoint when your agent needs live, up-to-date web search results without pre-registering for a SERP API key. It is especially suitable for AI agents making infrequent or variable-volume searches (pay-per-call model avoids monthly subscription costs), or when operating in environments where x402/USDC micropayments on Base are already supported. Prefer this over traditional SERP APIs when you want zero-signup access to web search as part of a broader multi-capability stack.

## Known failure modes

- Invalid or empty query returns an error response
- Insufficient USDC balance on Base causes payment failure and 402 response
- Search depth or chunks_per_source with invalid values may be ignored or cause errors
- Network timeout if the search provider is slow to respond
- Rate limiting or throttling under high load

## How this service works

Callfount is one API for AI agents: web search, page reading, headless browser, LLM chat, image generation, OCR, X/Twitter, trends, weather, crypto, FX and onchain data. Pay per call with x402 in USDC on Base. No signup, no API keys.

## Output

Returns a JSON object with an 'ok' boolean, a 'result' object containing the search results, the cost in USD, the service name ('search.serp'), and the content type. The result object contains the actual SERP data including snippets, titles, and URLs from the web search.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "The search query to execute"
  },
  "search_depth": {
   "type": "string",
   "description": ""
  },
  "chunks_per_source": {
   "type": "string",
   "description": ""
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "result": {},
  "costUsd": "0.001",
  "service": "search.serp",
  "contentType": "application/json"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/callfount-serp-search-4db0537b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from eueptuys6mlvzykd4egohsivnm.srv.us](https://www.zero.xyz/host/eueptuys6mlvzykd4egohsivnm.srv.us/llms.txt)