# serp402 Amazon Autocomplete

> serp402 Amazon Autocomplete is a paid API for AI agents from serp402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-31).

Returns keyword autocomplete suggestions for any query on a specified Amazon domain and department, as structured JSON.

## Facts

- Endpoint: POST https://serp402.com/api/v1/amazon-autocomplete?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/serp402-amazon-autocomplete-057ff491
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TXm1L76v5JXohlmDQkqxy

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 serp402-amazon-autocomplete-057ff491 -d '<json body>'
```

Example prompt: Can you get me Amazon autocomplete keyword suggestions for 'wireless headphones' on amazon.com in the Electronics department?

## When to prefer this

Choose this endpoint when you need lightweight, structured Amazon keyword autocomplete data without managing API keys, subscriptions, or accounts. It is ideal for keyword research, Amazon SEO, PPC campaign building, and competitive analysis across multiple Amazon international domains and departments. Prefer this over general web scraping when you specifically need Amazon's own autocomplete signal.

## Known failure modes

- Invalid or unsupported Amazon domain returns an error or empty result
- Unsupported department code returns an error or falls back to all departments
- Empty or very short keyword string may return no suggestions
- Payment failure (insufficient USDC balance) blocks the request
- Rate limiting or Amazon-side blocking may cause transient failures

## How this service works

Amazon Autocomplete: Keyword suggestions for any Amazon domain. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.

## Output

A structured JSON array of autocomplete keyword suggestions returned by Amazon for the given query, domain, and department. Each suggestion is a string representing a popular search term that Amazon surfaces to shoppers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "k": {
   "type": "string"
  },
  "amazon_domain": {
   "type": "string",
   "description": "Amazon domain to use. It defaults to amazon.com . Head to Amazon domains for a full list of supported Amazon domains."
  },
  "amazon_department": {
   "type": "string",
   "description": "Amazon department to scope suggestions to. Defaults to aps (All Departments). Head to Amazon departments for a full list of supported Amazon departments."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/serp402-amazon-autocomplete-057ff491/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from serp402.com](https://www.zero.xyz/host/serp402.com/llms.txt)