Google has documented a new web search service API that allows approved partners to access Google Search results programmatically. The announcement comes as the Custom Search JSON API moves toward complete shutdown on January 1, 2027.
For developers, SEO platforms, and businesses that depend on programmatic search results, the change raises an important question: What should replace the google custom search API?
Answer depends on whether you need full-web search, enterprise search, website analytics, or detailed Google SERP data.
What Is the Google Web Search Service API?
Google Web Search Service API is a programmatic service for approved partners that need to retrieve Google Search results for websites and applications.
API supports full-web search and can return results through REST or gRPC in JSON format. A request can return up to 20 results, with 10 results provided by default. Developers can also use filters for language, country, date, SafeSearch, and sorting.
However, this is not a standard public Google Search API that anyone can activate instantly.
Access requires:
- An active Google Cloud project
- A Google Cloud API key
- A client ID associated with an approved partner agreement
Requests must also include the end user’s IP address for regional routing and abuse prevention. Google’s documentation does not currently provide public details about partner eligibility, pricing, approval timelines, or standard query limits.
Why Is Google Custom Search API Shutting Down?
Google Custom Search JSON API is closed to new customers and will be discontinued on January 1, 2027. Existing users can continue using it until then.
API provides search results from configured websites through a Programmable Search Engine. Its published pricing includes 100 free queries per day, followed by $5 per 1,000 additional queries, with a 10,000-query daily limit.
Developers should start evaluating a Custom Search API replacement now to avoid disruptions when the service shuts down.
Is the Web Search Service API a Direct Replacement?
Not necessarily, Although the new Web Search Service API supports full-web search, it is restricted to approved programmatic partners. Google has not publicly confirmed that every existing Custom Search customer can simply migrate to this service.
This distinction is important for developers searching for a Google Search API alternative. Creating a Google Cloud project and generating an API key alone does not provide access. The required client ID must be associated with a qualifying partner agreement.
The new API also does not guarantee that its results will exactly match the public Google.com results page.
What Data Does the New API Provide?
The documented API response can include search-result information such as:
- Page titles
- URLs
- Snippets
- MIME types
- File formats
- Estimated result counts
- Corrected queries
This makes it useful for applications that need structured web search data. However, businesses looking for complete SERP information should pay attention to what is not documented.
The response does not provide dedicated fields for features such as AI Overviews, search advertisements, or local map results. For SEO software and rank-tracking platforms, these differences can be significant.
Google Search API Alternatives in 2026
There is no single replacement for every use case. The best option depends on the type of search data your application needs.
Google Web Search Service API
For approved partners that need full-web Google search, this is the most direct Google-provided option. Its main limitation is restricted access. Businesses cannot treat it like a typical self-service public API.
Vertex AI Search
Vertex AI Search is designed primarily for enterprise and content-search use cases. It can help businesses build search experiences across their own content and selected sources.
It should not automatically be considered a direct replacement for a public Google SERP API, because it serves a different purpose.
Google SERP API
A third-party Google SERP API can be a practical choice for SEO platforms, rank trackers, competitive research tools, and applications that need structured Google search-result data.
Depending on the provider, SERP APIs may offer access to organic results and additional SERP features such as People Also Ask, advertisements, local results, shopping results, or AI-related search elements.
For teams specifically looking for public Google search data, this can be more relevant than an enterprise search solution.
Google Search Console API
The Google Search Console API is useful for analyzing a website you own or manage. It provides performance data such as clicks, impressions, and average position.
It is not a general Google search results API and cannot be used to retrieve competitors’ rankings or the public Google SERP.
Google Search API vs. SERP API
The right choice depends on your objective.
| Requirement | Suitable Option |
|---|---|
| Full-web search through Google | Web Search Service API |
| Approved Google partner access | Web Search Service API |
| Enterprise content search | Vertex AI Search |
| SEO and rank tracking | Google SERP API |
| Public SERP data | Google SERP API |
| Your website’s search performance | Search Console API |
This comparison is especially important because terms such as Google Search API, Google Web Search API, and Google SERP API can describe very different requirements.
What Should Custom Search Users Do Before 2027?
Businesses still using the Custom Search JSON API should begin their migration planning now.
First, identify what the current integration actually needs. Does it require full-web search, site-restricted search, SERP rankings, JSON results, local results, People Also Ask data, or high-volume queries?
Next, compare available Google Search API alternatives based on features, access requirements, pricing, scalability, and the type of data returned.
Do not assume that every alternative provides the same information. A solution designed for enterprise content search may not provide public Google rankings, while a SERP API may be specifically designed for SEO and search-data applications.
FAQs
When is the Google Custom Search API shutting down?
The Custom Search JSON API is scheduled for complete shutdown on January 1, 2027.
Is the Google Web Search Service API available to everyone?
No. Access requires a Google Cloud project, API key, and client ID associated with an approved partner agreement.
What is the best Google Search API alternative?
It depends on the use case. The Web Search Service API suits approved partners, Vertex AI Search suits enterprise content search, and third-party SERP APIs are often better suited to SEO and public search-result data.
Does Google have a full-web search API?
Google now documents a Web Search Service API for approved partners that supports full-web search. It is not an unrestricted public API.
Final Takeaway
Google’s new partner-only Web Search Service API represents a significant change as the Custom Search JSON API approaches its January 1, 2027 shutdown.
Developers should not wait until the deadline to choose a replacement. Evaluate whether your project needs Google’s partner-only web search, enterprise content search, website analytics, or detailed SERP data.
For SEO tools and applications that depend on public search results, a suitable Google Search API alternative or Google SERP API may provide the functionality needed after Custom Search ends.
Need help choosing or implementing the right solution? TeckCod is a leading SEO agency offering technical SEO and search optimization services tailored to your business. Contact TeckCod today to discuss your SEO requirements and get started.
