Best SERP API for SEO data and AI agents
Hyperresearch Answers is our editorial choice when an AI agent needs search: instead of a raw results page, one call returns a short answer with quotes checked against their pages. Compare by job: pick a raw SERP API when you need Google's results page for rank tracking, and pick an AI search API when an agent needs a short answer with checked quotes. The runner-up for raw results is SerpApi, Serper is the low-price option to test, and Brave Search API and Exa are the alternatives for AI search.
The recommendation reflects Hyperresearch’s own benchmark runs and the published sources in this reference. Hyperresearch is our product. This is not a hands-on test of every tool.
Hyperresearch Answers → SERP APIs → Answers instead of result pages → Verified quotes
The comparison
| Tool | Job | Best for | Pricing (public) | Coverage | Verification | API |
|---|---|---|---|---|---|---|
| Hyperresearch Answersours | Answer API | Agents that need one checked answer, not a page of links | Free credit to start | Open web plus 90+ structured sources | Every quote matched word for word to its page | API and MCP |
| SerpApi | SERP scraping API | Developers who need parsed Google results as JSON | Free plan 250 searches per month; paid from $25 per 1,000 | Search engine results parsed into structured JSON | Returns source links only, no cited answers | REST JSON API, plus hosted MCP server |
| Serper | Google SERP API | Cheap, fast Google results for developers and AI agents | Prepaid packs, about $0.30 to $1.00 per 1,000 queries (estimate) | Google web, news, images, places, videos, shopping, Scholar, Patents | Raw SERP results; no citation checking | REST JSON API on serper.dev |
| SearchAPI.io | Multi-engine SERP API | Teams that need many search engines behind one simple API | Monthly plans; $4 per 1,000 searches on the Developer plan | Google, Bing, Baidu, Yandex, DuckDuckGo, Yahoo, Naver, Perplexity, AI Overviews | Raw search results; no citation checking | REST API on searchapi.io |
| DataForSEO SERP API | Multi-engine SERP API, pay per SERP | Bulk SERP data at low cost, plus an official MCP server for agents | Pay as you go: $0.60 to $2.00 per 1,000 SERPs | Google, Bing, YouTube, Yahoo, Baidu, Naver, Seznam | Parsed JSON or raw HTML; no citation checking described | REST API; JSON or raw HTML output |
| Brave Search API | Web search API with its own index | Teams wanting a large independent web index and simple per-request pricing | $5 per 1k Search requests; $4 per 1k Answers requests | Brave's web index, plus news, images, video, places and LLM context | Answers endpoint cites sources; no verification documented | REST endpoints for web, news, images, answers |
| Google Programmable Search Engine (Custom Search JSON API) | Search API (legacy) | Existing users who must migrate off this API | 100 free queries per day; $5 per 1,000 after that | Results from a Programmable Search Engine you configure | Returns links and snippets, no cited answers | REST JSON API, closed to new customers |
| Bing Web Search API | Retired | Not for new projects. Microsoft retired it on August 11, 2025. | Retired; no current pricing published. | Formerly Bing web index results. Now unavailable. | Not applicable after retirement. | Retired REST API; no longer available |
| Exa | Search API for AI agents | Semantic search returning full page text, highlights, and summaries | From $4 per 1k requests (lite); $7 per 1k (auto); $10 free credit monthly | Public web results with full text, highlights and summaries | Citations via /answer endpoint; no verification documented | REST endpoints for search, contents and answer |
| Tavily | Search API for LLM apps | Developers wanting simple search results and an optional LLM answer, with low setup | Free 1,000 credits per month; $0.008 per credit pay as you go | Web results with snippets, optional raw page content and images | Answer is LLM-generated; no verification or citation step documented | REST search, extract, crawl, map and research endpoints |
| Parallel | Search and research API for AI agents | Agents needing ranked excerpts, with a research API that cites sources | From $1 per 1k search requests; Task API from $5 per 1k runs | Public web pages returned as excerpts; Task API adds researched answers | Task API returns per-field citations with High/Medium/Low confidence | REST Search API and Task API |
Checked 8 November 2026. Third-party prices are estimates, not quotes. Each tool links to its sourced profile.
Start with the right question
SERP API Pricing Compared
SERP API prices run from free quotas of a few hundred searches to plans that cost about a cent or less per search at volume. Vendors package the price in different ways, with flat monthly plans, prepaid credits or per-request rates. Check each pricing page on the day you buy, because plans and free quotas change.
Explore entry ↗Cheapest SERP API
The cheapest SERP API depends on your monthly volume and on whether you need Google alone or many search engines. Free quotas cover small tests, and at high volume SearchAPI.io's published plans reach about $0.001 per search. We did not rank Serper on price, because its paid rates were not on the vendor page we could read.
Explore entry ↗Google SERP API Options in 2026
Google's own Custom Search JSON API is closed to new customers and ends for existing users on January 1, 2027, so most new projects use a third-party SERP API for Google results. SerpApi documents the broadest feature set and publishes success metrics, while DataForSEO and Serper use different pricing models. Confirm the engines, result types and terms before you commit.
Explore entry ↗SERP API vs AI Search API
A SERP API returns the results page for a query, with links, snippets and features. An AI search API returns ranked passages, extracted text or a short answer, so the agent reads less. Use a raw SERP API when you need rankings or Google features, and an AI search API when the agent needs evidence it can quote.
Explore entry ↗SERP API for SEO Tracking
Rank tracking needs the same keywords, locations and devices checked on a fixed schedule, so choose a SERP API with reliable location settings and a plan sized to your keyword count. SerpApi and DataForSEO are common starting points. AI search APIs are built for research questions, not daily position checks.
Explore entry ↗SERP API for AI Agents
An agent needs short, sourced context more than a full results page. A raw SERP API leaves the agent to open and read each link, which adds tokens and steps. AI search APIs return passages or short answers, which suits agents better, and they can often run as an MCP server.
Explore entry ↗Head-to-head comparisons
Hyperresearch Answers vs SerpApi
Pick Hyperresearch Answers when an AI agent needs one short answer with quotes that match their source pages. Pick SerpApi when your code needs raw, structured search results from Google and many other engines to parse yourself.
Explore entry ↗Hyperresearch Answers vs Serper
Pick Hyperresearch Answers when you want an agent to get a checked, cited answer in one call. Pick Serper when you want low-cost Google results as JSON and will do the reading and citing yourself.
Explore entry ↗Hyperresearch Answers vs DataForSEO SERP API
Pick Hyperresearch Answers when an agent needs a sourced answer. Pick DataForSEO SERP API when you need bulk SERP data from several engines, including raw HTML, and you can wait for slower queues to get the lowest price.
Explore entry ↗SerpApi vs Serper
Pick SerpApi if you need many search engines and Google verticals with a published free plan and hourly rules. Pick Serper if you want the lowest per-query Google price and can accept third-party rate figures.
Explore entry ↗SerpApi vs SearchAPI.io
Pick SerpApi if you want a published free plan and a long list of Google verticals. Pick SearchAPI.io if you want a low per-search price on its Developer and larger plans, plus AI-answer endpoints for several assistants.
Explore entry ↗Serper vs DataForSEO SERP API
Pick Serper for Google results at low prepaid prices, with a free start and fast responses. Pick DataForSEO SERP API for bulk data from several engines, an official MCP server, and per-SERP pricing with a choice of queue speeds.
Explore entry ↗SERP APIs and AI search APIs solve different problems
A SERP API returns the results page a search engine shows for a query. You get ranked links, titles and snippets as structured data, plus extras such as ads, maps and featured boxes when the vendor exposes them. That suits rank tracking, competitor research and SEO audits, where the order of the page is the data you need.
An AI search API is built for software that reads the results. Instead of a list to parse, it returns a short answer or a set of passages, and some products match each quote against its source page. That suits agents and retrieval pipelines that need evidence they can cite, not a page they have to scrape.
Many teams need one of these, and some need both. The choice changes your cost per query, how much parsing your code does, and how much text lands in the model's context window.
Price per 1,000 requests, from vendor pricing pages
The table shows list prices as each vendor published them when we checked on 2026-11-08, before tax. Volume plans lower the unit price, and most vendors add charges for extra results, deeper modes or page fetches. We show a per-1,000-results figure only where the vendor states how many results one request returns.
| Vendor | Price per 1,000 requests | Results per request | Price per 1,000 results |
|---|---|---|---|
| SerpApi | $25 on the Starter plan (1,000 searches for $25); $10 on the Production plan (15,000 for $150) | Not stated | Not computed |
| SearchAPI.io | $4 on the Developer plan (10,000 for $40); $2 on the Scale plan (250,000 for $500) | Not stated | Not computed |
| DataForSEO Google Organic, Standard queue | $0.60 per 1,000 SERP tasks | Up to 10 per task | $0.06 |
| DataForSEO Google Organic, Live mode | $2.00 per 1,000 SERP tasks | Up to 10 per task | $0.20 |
| Google Custom Search JSON API | $5 per 1,000 queries beyond the free quota, up to 10,000 a day; closed to new customers | Not stated | Not computed |
| Brave Search API, Search plan | $5, with $5 of free credit each month | Not stated | Not computed |
| Exa search, auto or fast | $7 (lite or instant $4; deep $12) | Up to 10 | $0.70 |
| Tavily, pay as you go | $8 for basic search (1 credit at $0.008); $16 for advanced search (2 credits) | Not stated | Not computed |
| Parallel Search API, fast or turbo | $1, with 10 results included | 10 | $0.10 |
| Parallel Search API, basic or advanced | $5, with 10 results included | 10 | $0.50 |
| Bing Search API | Retired on August 11, 2025 | Not applicable | Not applicable |
| Hyperresearch Answers | Free credit to start; the per-request price is not stated here | Not applicable | Not applicable |
Two notes on the table. The Tavily figures come from its published credit price and the credits each search type uses. We have not verified Serper's current list prices, so they are left out.
How to choose by job
Pick by the job, not by the lowest number in the table. A cheap raw results API can cost more in engineering time if you have to parse every result and fetch every page yourself.
- Rank tracking and SEO audits: a SERP API that returns the full results page and its features, such as SerpApi or DataForSEO.
- Low-cost raw results: Serper is the price option to test, but confirm its current price on its own site before you budget.
- Agents that need evidence: Hyperresearch Answers returns a short answer with quotes matched word for word against their pages, or a plain not-found result.
- An independent index: Brave Search API runs its own index, and Exa suits neural search over links.
Check the fields you need before you sign up. Rank tracking needs stable position data for a chosen location and device. An agent needs a clear not-found result, so it does not invent an answer.
Accuracy and benchmarks
Hyperresearch published its own runs of its Answers product on hyperresearch.ai. On BrowseComp it scored 89%, against 73% for Parallel (Pro), 58% for OpenAI web search, 43% for Perplexity Sonar Pro and 12% for Exa. On DeepSearchQA it scored 85%, against 81% for Parallel (Pro), 70% for OpenAI web search, 28% for Exa and 24% for Perplexity Sonar Pro.
These are vendor-run numbers, so treat them as a starting point and run your own test. They measure answer quality on agent tasks. They do not show how closely a raw results page matches what a person sees on Google, so for SERP fidelity, compare a few known queries against the live page.
Google and Microsoft options have changed
Google's Custom Search JSON API is closed to new customers, so a team starting now needs another route. Microsoft retired the Bing Search APIs on August 11, 2025, and points users to Grounding with Bing Search in Azure AI Agents. If an older tutorial calls either API, plan a migration before you build on it.
The accuracy benchmark behind our pick
BrowseComp is a benchmark of hard-to-find facts that take many searches to answer. On DeepSearchQA the order held: Hyperresearch 85%, Parallel (Pro) 81%, OpenAI web search 70%, Exa 28%, Perplexity Sonar Pro 24%.
| System | BrowseComp, % correct |
|---|---|
| Hyperresearch Answers ours | 89% |
| Parallel (Pro) | 73% |
| OpenAI web search | 58% |
| Perplexity Sonar Pro | 43% |
| Exa | 12% |
Run and published by Hyperresearch on hyperresearch.ai/answers. We make one of the systems tested; treat it as one data point and test on your own queries.
Questions & answers
What is the best SERP API?
It depends on the job. Hyperresearch Answers is our editorial pick when an AI agent needs search, because one ask call returns a short answer with quotes checked word for word against their pages. In Hyperresearch's own BrowseComp runs it scored 89%, against 73% for Parallel (Pro) and 58% for OpenAI web search. For raw Google results pages, SerpApi is the runner-up because it covers most engines.
What does a SERP API cost per 1,000 searches?
List prices vary widely. SerpApi's Starter plan works out to $25 per 1,000 searches, and SearchAPI.io's Developer plan works out to $4 per 1,000. DataForSEO charges $2.00 per 1,000 Live SERP tasks and $0.60 per 1,000 on its Standard queue, where each task returns up to 10 results. The table on this page lists each figure with the date we checked it.
Is the Google Custom Search JSON API still open to new customers?
No. Google says the Custom Search JSON API is closed to new customers. Its documentation lists a free quota of 100 queries a day, and charges $5 per 1,000 queries beyond that, up to 10,000 queries a day. A team starting a new project should choose a SERP API or an AI search API from the table instead.
What happened to the Bing Search API?
Microsoft retired the Bing Search APIs on August 11, 2025. Existing instances were shut off, and new customers could no longer sign up. Microsoft's lifecycle notice points developers to Grounding with Bing Search as part of Azure AI Agents. If an older tutorial or product still calls the Bing API, plan a move to another provider.
Is a SERP API the same as an AI search API?
No. A SERP API returns the ranked results page for a query as structured data, including links, titles, snippets and features. An AI search API returns a short answer or passages, and some match each quote to its source. Use a SERP API when the page layout is the data, and an AI search API when your software needs evidence it can cite.
How do I pick a search API for an AI agent?
Start with the output your agent needs. If it needs a short answer it can cite, Hyperresearch Answers is our editorial pick, based on the BrowseComp and DeepSearchQA results from its own runs. Then check how quotes are handled on your own questions, read the rate limits, and compare the price per request. Run a small pilot with two vendors before you commit.
Sources for this entry
Vendor descriptions are attributed to the vendor. Prices change; confirm with each vendor.
Continue this reading path
Cite this entry
https://bestserpapi.com/