# Kimi, top-up from $1, Tier0, POST /v1/tools/search_pro: Web search API

> On top of Web Search Basic, this endpoint lets you restrict results to specific sites with sites (multiple sites are OR’d, up to 5), constrain the time range with time_window, and return structured content chunks (chunks) for each result. Ideal for retrieval scenarios that require control over sources and freshness.

Kimi's web search API on its Tier0 plan. It costs $3.00 per 1,000 searches. It returns 1 of the 6 key fields we check: Text.
Half of the 334 plans we rank by price cost $3.125 per 1,000 searches or less. This plan is cheaper than 50% of the 334 plans.
The cheapest plan we rank by price is [LangSearch, free](https://datacircle.dev/web-search-apis/langsearch/free/llms.txt), at $0.00 per 1,000 searches.
[Context.dev](https://datacircle.dev/web-search-apis/context-dev/300-monthly/llms.txt), [Serpex](https://datacircle.dev/web-search-apis/serpex/top-up-from-50/llms.txt) and [Firecrawl](https://datacircle.dev/web-search-apis/firecrawl/top-up-from-5-pay-as-you-go-on-scale/llms.txt) are the best web search API providers in our benchmark.

- This page: https://datacircle.dev/web-search-apis/kimi/top-up-from-1-tier0-post-v1-tools-search-pro
- [Best web search API in 2026](https://datacircle.dev/best-web-search-api.txt)
- Get it: https://platform.kimi.ai/docs/pricing/limits
- Request: `POST https://api.moonshot.ai/v1/tools/search_pro`
- API key: with the plan, on https://platform.kimi.ai/docs/pricing/limits
- Its API docs: https://platform.kimi.ai/docs/api/tools-search-pro
- Sold by: Kimi (https://platform.kimi.ai)
- Checked: 2026-10-28

## In the answer

- Completeness: 17%
- Text: ✓

## Price

- $ per 1,000 searches: $3.00
- Per: call
- Billing: pay first

## Aggregators

- Aggregators: none

## Charges

- Most per search: 20
- Also pays for: from the same budget: Web Search Basic · URL Fetch · Chat Completions API · Responses API · Messages API · Create Batch

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: On top of Web Search Basic, this endpoint lets you restrict results to specific sites with sites (multiple sites are OR’d, up to 5), constrain the time range with time_window, and return structured content chunks (chunks) for each result. Ideal for retrieval scenarios that require control over sources and freshness.

## Data

- Keep data: no limit
- Use data: This license allows you to use Moonshot AI’s application programming interfaces (“APIs”) to integrate the Services into your own applications, products, or Services (each referred to as a “Customer Application”) and to offer those Customer Applications to End Users. [...] You are solely responsible for content and we do not claim ownership of it. [...] We may use Content to provide, maintain, develop, support, and improve the Services, comply with applicable law, enforce our terms and policies, and keep the Services safe and secure. [...] Unless otherwise expressly agreed in writing, Customer Content may be used for the foregoing purposes. [...] (3) You must not use any output relating to a person for any purpose that could have a legal or material impact on that person, such as making credit, educational, employment, housing, insurance, legal, medical, or other important decisions about them. [...] In using the Services, you must comply with all applicable laws as well as our documentation, guidelines, or policies we make available to you. For example, you will not, and will not permit End Users to: 3.1 Use the Services for any illegal or improper purposes or activities that violate applicable laws and regulations, harm the legitimate rights or interests of us or anyone [...] 3.2 Engage in the following activities that endanger network security, operational security or create risks of the Services: [...] (5) For developing, serving, or creating applications, products, Services, or models that have potential competitive possibilities with the Services without authorization. (6) Copying, transferring, renting, lending, selling, or providing sub-licensing or re-licensing of the Services in whole or in part without authorization. [...] 3.4 Use the Services to: [...] (3) Evaluate or classify individuals based on their social behavior or personal traits leading to detrimental or unfavorable treatment. [...] (9) Use any method to extract data from the Services other than as permitted through the APIs, or buy, sell, or transfer API keys from, to or with a third party.

## Plan

- Pay: $1
- You get: $1
- Enough for: about 333 calls

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: text_query. Optional: timeout_seconds, limit, sites, time_window.start, time_window.end
- Method: POST
- Path: /v1/tools/search_pro

## About the plan

- Plan: Tier0
- Who can get it: anyone at least 18 years old or the minimum age required by their country to consent to such use (an enterprise account needs authorization from the business), and not the subject of any trade restrictions, sanctions, or other legal or regulatory restrictions

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

page title, URL, snippet, site name, result date, source authority, site icon URL, MIME type, content chunks, chunk relevance score

## Kimi's plans (7)

- [Kimi, top-up from $1, Tier0, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-1-tier0-post-v1-tools-search-pro/llms.txt): $3.00 per 1,000, 17% complete
- [Kimi, top-up from $10, Tier1, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-10-tier1-post-v1-tools-search-pro/llms.txt): $3.00 per 1,000, 17% complete
- [Kimi, top-up from $20, Tier2, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-20-tier2-post-v1-tools-search-pro/llms.txt): $3.00 per 1,000, 17% complete
- [Kimi, top-up from $100, Tier3, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-100-tier3-post-v1-tools-search-pro/llms.txt): $3.00 per 1,000, 17% complete
- [Kimi, top-up from $1,000, Tier4, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-1000-tier4-post-v1-tools-search-pro/llms.txt): $3.00 per 1,000, 17% complete
- [Kimi, top-up from $3,000, Tier5, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-3000-tier5-post-v1-tools-search-pro/llms.txt): $3.00 per 1,000, 17% complete
- [Kimi, contact us, Enterprise, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/contact-us-enterprise-post-v1-tools-search-pro/llms.txt): 17% complete

## Kimi's calls for this API (2)

- `POST /v1/tools/search`: [Kimi, top-up from $1, Tier0, POST /v1/tools/search](https://datacircle.dev/web-search-apis/kimi/top-up-from-1-tier0-post-v1-tools-search/llms.txt)
- `POST /v1/tools/search_pro`: [Kimi, top-up from $1, Tier0, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-1-tier0-post-v1-tools-search-pro/llms.txt)

## Kimi's APIs (2)

- [Kimi: web scraping API pricing, 7 plans](https://datacircle.dev/web-scraping-apis/kimi/top-up-from-1/llms.txt)
- [Kimi: web search API pricing, 7 plans, POST /v1/tools/search_pro](https://datacircle.dev/web-search-apis/kimi/top-up-from-1-tier0-post-v1-tools-search-pro/llms.txt)

## Kimi: web search API alternatives

- [Spider Cloud, top-up from $1, Pay as you go, POST /search, Search and crawl](https://datacircle.dev/web-search-apis/spider-cloud/top-up-from-1-pay-as-you-go-post-search-search-and-crawl/llms.txt): $3.00 per 1,000, 17% complete, live
- [ContextFetch, top-up from $10, Pay as you go, POST /v1/search, Search, deep](https://datacircle.dev/web-search-apis/contextfetch/top-up-from-10-pay-as-you-go-post-v1-search-search-deep/llms.txt): $3.00 per 1,000, 50% complete, live
- [Anakin, $100 monthly, Scale](https://datacircle.dev/web-search-apis/anakin/100-monthly-scale/llms.txt): $3.00 per 1,000, 33% complete
- [browserfoundry, $30 pack, Growth Pack, POST /api/v2/search/fast](https://datacircle.dev/web-search-apis/browserfoundry/30-pack-growth-pack-post-api-v2-search-fast/llms.txt): $3.00 per 1,000, 33% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-28.

- https://platform.kimi.ai/docs/agreement/modeluse
- https://platform.kimi.ai/docs/api/tools-fetch
- https://platform.kimi.ai/docs/api/tools-search
- https://platform.kimi.ai/docs/api/tools-search-pro
- https://platform.kimi.ai/docs/guide/best-practices-for-web-search
- https://platform.kimi.ai/docs/guide/product-plans
- https://platform.kimi.ai/docs/pricing/limits
- https://platform.kimi.ai/docs/pricing/websearch