# serp402, pay as you go: Search autocomplete API

> Keyword suggestions for any Amazon domain.

serp402's search autocomplete API on its Pay per call with x402 plan. It costs $50.00 per 1,000 queries. It returns none of the 4 key fields we check: Type, Relevance, Description and Image.
We haven't run serp402 through [our search autocomplete API benchmark](https://datacircle.dev/best-search-autocomplete-api.txt) yet.
Half of the 177 plans we rank by price cost $0.70 per 1,000 queries or less. This plan costs less per 1,000 queries than 8% of the 177 plans.
[Zapi's Rp399,000 monthly plan](https://datacircle.dev/search-autocomplete-apis/zapi/rp399000-monthly/llms.txt) costs the least per 1,000 queries: $0.022.
[SERPHouse](https://datacircle.dev/search-autocomplete-apis/serphouse/49-99-monthly/llms.txt), [Litescrape](https://datacircle.dev/search-autocomplete-apis/litescrape/top-up-from-10/llms.txt) and [Autom](https://datacircle.dev/search-autocomplete-apis/autom/50-pack/llms.txt) are the best search autocomplete API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/search-autocomplete-apis/serp402/pay-as-you-go
- [Search autocomplete API: 3 providers compared](https://datacircle.dev/best-search-autocomplete-api.txt)
- Get it: https://serp402.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing
- Request: `POST https://serp402.com/api/v1/amazon-autocomplete`
- API key: not needed
- Its API docs: https://serp402.com/api/v1?q=amazon-autocomplete&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing
- Sold by: serp402 (https://serp402.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 0%

## Price

- $ per 1,000 queries: $50.00
- Per: call
- Billing: pay as you go

## Charges

- Also pays for: from the same budget: 125 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Keyword suggestions for any Amazon domain.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: amazon_domain, amazon_department, k
- Method: POST
- Path: /api/v1/amazon-autocomplete

## About the plan

- Plan: Pay per call with x402
- Who can get it: anyone with a wallet holding USDC on Base or Solana

## The only field the plan's answer can hold

suggestion query

## serp402's plans (1)

- [serp402, pay as you go](https://datacircle.dev/search-autocomplete-apis/serp402/pay-as-you-go/llms.txt): $50.00 per 1,000, 0% complete

## serp402's calls for this API (1)

- `POST /api/v1/amazon-autocomplete`: [serp402, pay as you go](https://datacircle.dev/search-autocomplete-apis/serp402/pay-as-you-go/llms.txt)

## serp402's APIs (15)

- [serp402: Amazon search API pricing, 1 plan](https://datacircle.dev/amazon-search-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: search autocomplete API pricing, 1 plan](https://datacircle.dev/search-autocomplete-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: image search API pricing, 1 plan, POST /api/v1/bing-images](https://datacircle.dev/image-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-bing-images/llms.txt)
- [serp402: image search API pricing, 1 plan, POST /api/v1/naver-images](https://datacircle.dev/image-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-naver-images/llms.txt)
- [serp402: image search API pricing, 1 plan, POST /api/v1/yahoo-images](https://datacircle.dev/image-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-yahoo-images/llms.txt)
- [serp402: image search API pricing, 1 plan, POST /api/v1/yandex-images](https://datacircle.dev/image-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-yandex-images/llms.txt)
- [serp402: image search API pricing, 1 plan, POST /api/v1/google-images](https://datacircle.dev/image-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-images/llms.txt)
- [serp402: image search API pricing, 1 plan, POST /api/v1/google-images-light](https://datacircle.dev/image-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-images-light/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/bing-videos](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-bing-videos/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/yahoo-videos](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-yahoo-videos/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/yandex-videos](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-yandex-videos/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/youtube-search](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-youtube-search/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/google-short-videos](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-short-videos/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/google-videos](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-videos/llms.txt)
- [serp402: video search API pricing, 1 plan, POST /api/v1/google-videos-light](https://datacircle.dev/video-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-videos-light/llms.txt)
- [serp402: Local business search API pricing, 1 plan, POST /api/v1/bing-maps](https://datacircle.dev/local-business-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-bing-maps/llms.txt)
- [serp402: Local business search API pricing, 1 plan, POST /api/v1/yelp-search](https://datacircle.dev/local-business-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-yelp-search/llms.txt)
- [serp402: eBay product API pricing, 1 plan](https://datacircle.dev/ebay-product-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: eBay search API pricing, 1 plan](https://datacircle.dev/ebay-search-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: job postings API pricing, 1 plan](https://datacircle.dev/job-posting-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: Local business reviews API pricing, 1 plan, POST /api/v1/google-maps-reviews](https://datacircle.dev/local-business-reviews-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-maps-reviews/llms.txt)
- [serp402: Local business reviews API pricing, 1 plan, POST /api/v1/yelp-reviews](https://datacircle.dev/local-business-reviews-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-yelp-reviews/llms.txt)
- [serp402: Google Shopping product API pricing, 1 plan](https://datacircle.dev/google-shopping-product-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: Instagram profile API pricing, 1 plan](https://datacircle.dev/instagram-profile-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: Walmart product API pricing, 1 plan](https://datacircle.dev/walmart-product-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: Walmart search API pricing, 1 plan](https://datacircle.dev/walmart-search-apis/serp402/pay-as-you-go/llms.txt)
- [serp402: news API pricing, 1 plan, POST /api/v1/google-news](https://datacircle.dev/news-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-news/llms.txt)
- [serp402: news API pricing, 1 plan, POST /api/v1/google-news-light](https://datacircle.dev/news-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-news-light/llms.txt)
- [serp402: Google Shopping search API pricing, 1 plan, POST /api/v1/google-shopping](https://datacircle.dev/google-shopping-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-shopping/llms.txt)
- [serp402: Google Shopping search API pricing, 1 plan, POST /api/v1/google-shopping-light](https://datacircle.dev/google-shopping-search-apis/serp402/pay-as-you-go-pay-per-call-with-x402-post-api-v1-google-shopping-light/llms.txt)

## serp402: search autocomplete API alternatives

- [Scale SERP, $29 monthly](https://datacircle.dev/search-autocomplete-apis/scale-serp/29-monthly/llms.txt): $29.00 per 1,000, 0% complete, live
- [KeywordsPeopleUse, top-up from $2.50](https://datacircle.dev/search-autocomplete-apis/keywordspeopleuse/top-up-from-2-50/llms.txt): $50.00 per 1,000, 0% complete
- [DataXAPI, $500 pack](https://datacircle.dev/search-autocomplete-apis/dataxapi/500-pack/llms.txt): $83.333 per 1,000, 0% complete, live
- [QuanticData, $299 monthly, Scale, POST /scraper/collectors/youtube_autocomplete/run](https://datacircle.dev/search-autocomplete-apis/quanticdata/299-monthly-scale-post-scraper-collectors-youtube-autocomplete-run/llms.txt): $83.72 per 1,000, 0% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

- https://serp402.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing
- https://serp402.com/api/v1?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing
- https://serp402.com/api/v1?q=amazon-autocomplete&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing
- https://serp402.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing
- https://serp402.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=search-autocomplete-api-pricing