Which subscription do I need to purchase to gain access to the API?

API access is currently available as part of our Business and Enterprise plans, or alternatively as a standalone package.

How do I begin using the Similarweb API?

Starting with the Similarweb API is straightforward. Our extensive documentation guides you through the integration process, covering both fundamental and advanced topics. This ensures an easy start for developers of any experience level.

What are the key benefits of using the Similarweb API?

The Similarweb API offers significant advantages, enabling: • Seamless productivity upgrades by integrating data sources • Discovery of insightful growth opportunities via in-depth website and app analysis • Efficient time savings with automated report generation • Ease of use with minimal coding knowledge needed

What are some common applications of the Similarweb API?

The Similarweb API is versatile, supporting a wide range of applications, including marketing campaign optimization, affiliate partnership identification, SEO, SEM and conversion funnel optimization, CRM data enrichment, global travel audience analysis, and real-time insights for making smarter investment decisions. You can rely on near real-time keyword data to power the metrics you use daily and make confident decisions on your marketing strategy. Our unique dataset enables us to deliver unique insights and metrics with accuracy you won’t find anywhere else.

Can I automate the integration of data into my internal tools and dashboards?

Absolutely, the Similarweb API enables the automation of data integration into your internal tools, dashboards, and interfaces, streamlining efficient decision-making and facilitating true real-time analysis.

What data does the Similarweb API provide access to?

The Similarweb API provides access to billions of data points across websites, mobile apps, keywords, companies, and technologies. Core datasets include traffic and engagement metrics, keyword rankings, app performance for iOS and Android, technographic data (tech stacks), company firmographics, and audience behavior, all queryable programmatically through a single API key.

What is the difference between the REST API and the Batch API?

The REST API is best for real-time, on-demand queries, ideal for live dashboards and applications. The Batch API is optimized for large-scale data pulls, historical trend analysis, and data warehouse ingestion. Both access the same underlying datasets and use the same API key. The Batch API is included in Business, Enterprise, and API-only plans. Read more here

How much historical data can I access through the API?

Similarweb's API provides access to up to 7 years of historical data across all data types, enabling long-term trend analysis and strategic research. The specific date range available depends on your subscription plan. You can use the Check Capabilities endpoint to confirm the exact start and end dates available in your account.

How does Similarweb's API pricing work?

Similarweb uses a data credit model. You pay for the data you receive, not just the API calls made. Each endpoint has a defined credit cost listed in the API reference. Credits typically reset monthly. You can use the Request Validate endpoint to estimate costs before running large queries.

Does Similarweb offer OEM or white-label API access for product builders?

Yes. Similarweb offers OEM licensing for companies that want to embed digital intelligence into their own software products. This allows SaaS platforms, analytics tools, and data products to surface Similarweb insights, such as competitor traffic, keyword trends, or technographic data — directly within their own user interfaces.

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Elevate Your Data Insights with Similarweb’s API

Access data in real-time and at scale to make faster business decisions with unmatched flexibility and customization

Trusted by leading data teams in companies of all sizes

Your all-in-one API solution for any type of Similarweb data

Pull valuable data about millions of websites and mobile apps, billions of keywords, and thousands of companies and technologies all through a single API. Explore some of our most popular APIs:

Analyze your competitors’ traffic

Get an overview of any company’s digital market share. Measure volume, reach, distribution, and engagement to understand the quality of their traffic.

Win the search marketing game

Access the freshest, most accurate keyword data to stay ahead of keyword trends and optimize your organic user growth.

Gain a 360° view of the mobile app market

Access best-in-class mobile app insights for Android and iOS to fully understand your market.

Explore the tech stack of any website

Discover crucial insights into technologies from across millions of websites and the reach of these technologies worldwide.

Discover the digital footprint of any company

Gain complete visibility into how the companies you're targeting behave online.

Transform your business with the world’s best Digital Intelligence Data

Our powerful API solutions serve as a gateway to a wealth of digital insights, enabling you to extract valuable data for a deeper understanding of the digital world. Leverage our vast datasets to power data-driven decision-making throughout your entire organization.

Explore our API Documentation

Ready to take our API for a spin? Our documentation details the breadth and granularity of our data, as well as the capabilities at your disposal, complete with comprehensive integration guides.

Take me to the API docs →

Coverage & Scale

Infinite data at your fingertips

Tap into our vast datasets, uncovering billions of data points across companies, stocks, websites, apps, keywords, and technologies. Gain unrivaled market insights to drive your strategic decisions.

Flexibility & Customization

Seamless integration and agile data delivery

Easily integrate our robust APIs into your systems and workflows. Our solutions offer the flexibility to cater to your specific needs, whether you require real-time insights or large-scale data pulls.

Seamless API Integration and agile data delivery

Real-time Notifications

Making faster decisions, at scale

Transform your digital intelligence strategy by zooming in on the most important data. With Similarweb’s API solutions, bypass the manual labor of navigating dashboards for efficient, focused analysis.

"Similarweb's API has been key in shaping our product roadmap by enabling us to detect trends early. This integration not only enhanced our machine learning models but also streamlined our data-driven decision-making process."

Shawn Lucas

Head of Strategy & Research at Wix

"Similarweb is essential to accessiBe’s business model. It enables us to accurately size our customers, allowing for precise segmentation and pricing. Without it, we wouldn’t have the reliable intelligence needed to understand and serve our most valuable resource, our customers."

Demar Amacker

Director of Revenue Operations at accessiBe

API access is currently available as part of our Business and Enterprise plans, or alternatively as a standalone package.
Starting with the Similarweb API is straightforward. Our extensive documentation guides you through the integration process, covering both fundamental and advanced topics. This ensures an easy start for developers of any experience level.
The Similarweb API offers significant advantages, enabling:
• Seamless productivity upgrades by integrating data sources
• Discovery of insightful growth opportunities via in-depth website and app analysis
• Efficient time savings with automated report generation
• Ease of use with minimal coding knowledge needed
The Similarweb API is versatile, supporting a wide range of applications, including marketing campaign optimization, affiliate partnership identification, SEO, SEM and conversion funnel optimization, CRM data enrichment, global travel audience analysis, and real-time insights for making smarter investment decisions.
You can rely on near real-time keyword data to power the metrics you use daily and make confident decisions on your marketing strategy.
Our unique dataset enables us to deliver unique insights and metrics with accuracy you won’t find anywhere else.
Absolutely, the Similarweb API enables the automation of data integration into your internal tools, dashboards, and interfaces, streamlining efficient decision-making and facilitating true real-time analysis.
The Similarweb API provides access to billions of data points across websites, mobile apps, keywords, companies, and technologies. Core datasets include traffic and engagement metrics, keyword rankings, app performance for iOS and Android, technographic data (tech stacks), company firmographics, and audience behavior, all queryable programmatically through a single API key.
The REST API is best for real-time, on-demand queries, ideal for live dashboards and applications. The Batch API is optimized for large-scale data pulls, historical trend analysis, and data warehouse ingestion. Both access the same underlying datasets and use the same API key. The Batch API is included in Business, Enterprise, and API-only plans. Read more here
Similarweb's API provides access to up to 7 years of historical data across all data types, enabling long-term trend analysis and strategic research. The specific date range available depends on your subscription plan. You can use the Check Capabilities endpoint to confirm the exact start and end dates available in your account.
Similarweb uses a data credit model. You pay for the data you receive, not just the API calls made. Each endpoint has a defined credit cost listed in the API reference. Credits typically reset monthly. You can use the Request Validate endpoint to estimate costs before running large queries.
Yes. Similarweb offers OEM licensing for companies that want to embed digital intelligence into their own software products. This allows SaaS platforms, analytics tools, and data products to surface Similarweb insights, such as competitor traffic, keyword trends, or technographic data — directly within their own user interfaces.

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