# Exepal SERP + AI Answer Deep Monitor

> Exepal SERP + AI Answer Deep Monitor is a paid API for AI agents from api.exepal.com, paid per call via x402, $2.5/call, status unknown (last checked 2026-11-01).

Monitors a brand's visibility and rankings in both traditional search engine results pages (SERP) and AI-generated answers for specified keywords, with change-tracking against a previous snapshot.

## Facts

- Endpoint: POST https://api.exepal.com/v1/serp-ai-monitor/deep?utm_source=zero.xyz
- Price: $2.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/exepal-serp-ai-answer-deep-monitor-3b366ef5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BLxTwVKT5pYN1h0bJ5Uya

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 exepal-serp-ai-answer-deep-monitor-3b366ef5 -d '<json body>'
```

Example prompt: Check how visible my brand 'Notion' (notion.com) is in AI-generated search answers and SERP results in the US for the keywords ['project management tool', 'team wiki', 'note-taking app'] in English, and compare it against this previous snapshot so I can see what changed.

## When to prefer this

Choose this endpoint when you need a deep, combined view of both traditional SERP rankings and AI-generated answer visibility for a brand or domain, especially with change-tracking over time. It is particularly valuable for brands running AI-era SEO programs, tracking whether they appear in LLM-cited results or AI overviews, and measuring rank drift. The /deep tier is appropriate when thoroughness and historical comparison matter more than speed or cost. Prefer it over lighter monitoring endpoints when you need per-keyword breakdown with snapshot diffing.

## Known failure modes

- Missing required fields (brand or keywords) returns a 400 validation error
- Invalid country or language codes return a 422 error
- Keywords array exceeding tier cap results in truncation or rejection
- previousSnapshot format mismatch causes change-tracking to fail or return no deltas
- Payment failure via x402/USDC results in 402 Payment Required before any data is returned
- No AI answer data available for a keyword returns empty or null results for that keyword

## How this service works

Paid single-purpose tools for AI agents: AI brand visibility, creator vetting, company enrichment, ad creative scoring, SERP + AI answer monitoring. Pay per call in USDC on Base via x402. No accounts or API keys.

## Output

Returns detailed data on the brand's presence in AI-generated answers and traditional SERP results for each keyword, including rank positions, mention counts, citation URLs, and — when a previousSnapshot is provided — deltas showing rank changes, new appearances, and lost positions since the prior check.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "brand": {
   "type": "string",
   "description": "Brand name to look for in AI answers"
  },
  "domain": {
   "type": "string",
   "description": "Your site, e.g. notion.com"
  },
  "country": {
   "type": "string",
   "description": "Two-letter country code, e.g. us"
  },
  "keywords": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "Keywords to check, capped by the tier"
  },
  "language": {
   "type": "string",
   "description": "Two-letter language code, e.g. en"
  },
  "previousSnapshot": {
   "type": "object",
   "description": "A previous response, to get rank changes"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/exepal-serp-ai-answer-deep-monitor-3b366ef5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.exepal.com](https://www.zero.xyz/host/api.exepal.com/llms.txt)