# Search1API, free, Free, POST /ask: Web search API

> Agentic search API. A decision model detects intent from a natural-language request, routes it to up to five engines, and reranks results by relevance.

Search1API's web search API on its Free plan. It costs $0.00 per 1,000 searches. It returns 2 of the 6 key fields we check: Date, Text.
The cheapest of the 177 plans we rank by price is [Ceramic, $99 monthly](https://datacircle.dev/web-search-apis/ceramic/99-monthly/llms.txt), at $0.20 per 1,000 searches.
[Search1API](https://datacircle.dev/web-search-apis/search1api/19-monthly-basic-post-search-search/llms.txt), [Firecrawl](https://datacircle.dev/web-search-apis/firecrawl/top-up-from-5-pay-as-you-go-on-scale/llms.txt) and [Valyu](https://datacircle.dev/web-search-apis/valyu/499-monthly/llms.txt) are the best web search API providers in our benchmark.

- This page: https://datacircle.dev/web-search-apis/search1api/free-free-post-ask
- [Best web search API in 2026](https://datacircle.dev/best-web-search-api.txt)
- Get it: https://www.search1api.com/pricing
- Request: `POST https://api.search1api.com/ask`
- API key: with the plan, on https://www.search1api.com/pricing
- Its API docs: https://s1.dev/docs/basic/ask
- Sold by: Search1API (https://search1api.com)
- Checked: 2026-10-27

## In the answer

- Completeness: 33%
- Date: ✓
- Text: ✓

## Price

- $ per 1,000 searches: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Most per search: 10
- Also pays for: from the same budget: Search · News · Maps · Crawl · Screenshot · Sitemap · Trending · Extract · DeepCrawl

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Agentic search API. A decision model detects intent from a natural-language request, routes it to up to five engines, and reranks results by relevance.

## Data

- Freshness: live
- Keep data: no limit
- Use data: "Our Products must not be used to transmit, distribute or store any material in violation of any applicable law. This includes but isn't limited to: any material protected by copyright, trademark, trade secret, or other intellectual property right used without proper authorization, and any material that is obscene, defamatory, constitutes an illegal threat or violates export control laws.", "Our Products must not be used for the purpose of sending unsolicited bulk or commercial messages in violation of the laws and regulations applicable to your jurisdiction (\"spam\").", "Our Products must not be used for the purpose of running unconfirmed mailing lists or telephone number lists (\"messaging lists\")." [...] "Our Products must not be used to access any account or electronic resource where the group or individual attempting to gain access does not own or is not authorized to access the resource", "Our Products must not be used for the purpose of intentionally or recklessly introducing viruses or malicious code into our Products and systems.", "Our Products must not be used for purposely engaging in activities designed to harass another group or individual.", "Other activities considered unethical, exploitative, and malicious include: Obtaining (or attempting to obtain) services from us with the intent to avoid payment, [...] Any act or omission in violation of consumer protection laws and regulations, Any violation of a person's privacy.", "Our Products may not be used by any person or entity, which is involved with or suspected of involvement in activities or causes relating to illegal gambling, terrorism, narcotics trafficking, arms trafficking [...]", "We provide our facilities with the assumption your use will be \"business as usual\", as per our offer schedule. If your use is considered to be excessive, then additional fees may be charged, or capacity may be restricted."

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: 20 calls, once
- Expires: never

## Rate limit

- Per second: 0.5

## Speed

- Answer: in the call
- Median: 6.49 s

## The call

- You send: query
- Method: POST
- Path: /ask

## About the plan

- Plan: Free
- Who can get it: anyone

## The 10 fields the plan's answer can hold

query, search keywords, engines used, time range, page title, URL, snippet, published date, source, relevance score

## Search1API's plans (11)

- [Search1API, free, Free, POST /ask](https://datacircle.dev/web-search-apis/search1api/free-free-post-ask/llms.txt): $0.00 per 1,000, 33% complete, live
- [Search1API, top-up from $5, Pay as you go, POST /ask](https://datacircle.dev/web-search-apis/search1api/top-up-from-5-pay-as-you-go-post-ask/llms.txt): $5.00 per 1,000, 33% complete, live
- [Search1API, $19 pack, Pay as you go, $19 (+5% bonus), POST /ask](https://datacircle.dev/web-search-apis/search1api/19-pack-pay-as-you-go-19-5-bonus-post-ask/llms.txt): $4.762 per 1,000, 33% complete, live
- [Search1API, $99 pack, Pay as you go, $99 (+20% bonus), POST /ask](https://datacircle.dev/web-search-apis/search1api/99-pack-pay-as-you-go-99-20-bonus-post-ask/llms.txt): $4.167 per 1,000, 33% complete, live
- [Search1API, $499 pack, Pay as you go, $499 (+60% bonus), POST /ask](https://datacircle.dev/web-search-apis/search1api/499-pack-pay-as-you-go-499-60-bonus-post-ask/llms.txt): $3.125 per 1,000, 33% complete, live
- [Search1API, $19 monthly, Basic, POST /ask](https://datacircle.dev/web-search-apis/search1api/19-monthly-basic-post-ask/llms.txt): $3.80 per 1,000, 33% complete, live
- [Search1API, $99 monthly, Professional, POST /ask](https://datacircle.dev/web-search-apis/search1api/99-monthly-professional-post-ask/llms.txt): $3.30 per 1,000, 33% complete, live
- [Search1API, $499 monthly, Enterprise, POST /ask](https://datacircle.dev/web-search-apis/search1api/499-monthly-enterprise-post-ask/llms.txt): $2.495 per 1,000, 33% complete, live
- [Search1API, $190 yearly, Basic (annual), POST /ask](https://datacircle.dev/web-search-apis/search1api/190-yearly-basic-annual-post-ask/llms.txt): $3.167 per 1,000, 33% complete, live
- [Search1API, $990 yearly, Professional (annual), POST /ask](https://datacircle.dev/web-search-apis/search1api/990-yearly-professional-annual-post-ask/llms.txt): $2.75 per 1,000, 33% complete, live
- [Search1API, $4,990 yearly, Enterprise (annual), POST /ask](https://datacircle.dev/web-search-apis/search1api/4990-yearly-enterprise-annual-post-ask/llms.txt): $2.079 per 1,000, 33% complete, live

## Search1API's calls for this API (5)

- `POST /ask`: [Search1API, free, Free, POST /ask](https://datacircle.dev/web-search-apis/search1api/free-free-post-ask/llms.txt)
- `POST /news`, News: [Search1API, free, Free, POST /news, News](https://datacircle.dev/web-search-apis/search1api/free-free-post-news-news/llms.txt)
- `POST /news`, News, full: [Search1API, free, Free, POST /news, News, full](https://datacircle.dev/web-search-apis/search1api/free-free-post-news-news-full/llms.txt)
- `POST /search`, Search: [Search1API, free, Free, POST /search, Search](https://datacircle.dev/web-search-apis/search1api/free-free-post-search-search/llms.txt)
- `POST /search`, Search, full: [Search1API, free, Free, POST /search, Search, full](https://datacircle.dev/web-search-apis/search1api/free-free-post-search-search-full/llms.txt)

## Search1API's APIs (2)

- [Search1API: SERP API pricing, 11 plans](https://datacircle.dev/serp-apis/search1api/free/llms.txt)
- [Search1API: web search API pricing, 11 plans, POST /ask](https://datacircle.dev/web-search-apis/search1api/free-free-post-ask/llms.txt)

## Search1API: web search API alternatives

- [LLMLayer, top-up](https://datacircle.dev/web-search-apis/llmlayer/top-up/llms.txt): $2.00 per 1,000, 33% complete, live
- [Context.dev, $20 monthly](https://datacircle.dev/web-search-apis/context-dev/20-monthly/llms.txt): $2.00 per 1,000, 17% complete, live
- [ContextFetch, $499 monthly, Scale, POST /v1/search, Search, deep](https://datacircle.dev/web-search-apis/contextfetch/499-monthly-scale-post-v1-search-search-deep/llms.txt): $2.303 per 1,000, 50% complete, live
- [Social Fetch, $59 pack](https://datacircle.dev/web-search-apis/social-fetch/59-pack/llms.txt): $2.36 per 1,000, 17% 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 2026-10-27.

- https://api.search1api.com/openapi.json
- https://blog.s1.dev/pages/acceptable-use
- https://blog.s1.dev/pages/terms
- https://s1.dev/docs/basic/ask
- https://s1.dev/docs/essentials/credits-and-limits.md
- https://s1.dev/pricing.md
- https://www.search1api.com
- https://www.search1api.com/pricing