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Top 28 API Generation Software SaaS Companies in May 2026

As of May 2026, there are 28 SaaS companies in API Generation Software. They have combined revenues of $64.2M and employ 490 people. They have raised $19.4M and serve - customers combined.

Companies
28
Revenue
$64.2M
Funding
$19.4M
Employees
490

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Top API Generation Software Companies

Showing 10 of 28 companies ranked by annual revenue.

1
Apify

Prague, Hlavni Mesto Praha, Czech Republic

Provider of a web scraping and automation platform designed to turn any website into an API in a few minutes. The company's web scraping and automation platform offers an easy way to run headless Chrome jobs in the cloud and extract data or perform automated actions on practically any website, enabling companies to succeed by leveraging unlimited data from the web.

Revenue
$13.3M
Customers
-
Year founded
2015
Funding
$552K
Team size
116
Growth
108.01%
2
Aqueduct, Inc.

United States

ApiOverflow uses cutting edge generative AI technology to learn how to use APIs and convert your questions into usable code.

Revenue
$8.5M
Customers
-
Year founded
-
Funding
-
Team size
-
Growth
-
3
Ozone API

London, England, United Kingdom

Ozone API is the leading standards based platform that handles the complexity of open banking, making it easy for any financial institution to meet both regulatory and commercial requirements for an open API. Banks using the Ozone API can accelerate their implementation of open APIs, and bring new commercial services to market ahead of the competition.

Revenue
$7.2M
Customers
-
Year founded
2017
Funding
-
Team size
65
Growth
-
4
Buf

Toronto, Ontario, Canada

The Protobuf developer platform Accelerate API development with Buf, the only end-to-end developer platform for Protocol Buffers, gRPC, and Kafka.

Revenue
$5.4M
Customers
-
Year founded
-
Funding
-
Team size
49
Growth
-
5
Stainless

New York, New York, United States

Stainless is a company that specializes in generating software development kits for APIs.

Revenue
$5.1M
Customers
-
Year founded
2022
Funding
-
Team size
64
Growth
-
6
APIMatic

Auckland, New Zealand

Provider of a developer experience platform intended to make developers productive through automatic code generation. The company's platform offers an automatic software development kit generator for stack development and application delivery of APIs, enabling API providers to generate SDKs for their APIs within minutes and at a fraction of the cost.

Revenue
$5.1M
Customers
-
Year founded
2014
Funding
-
Team size
38
Growth
221.53%
7
Gram by Speakeasy

San Francisco, California, United States

Speakeasy is a platform that provides developers with the tools they need to craft exceptional API experiences. You can use Speakeasy to generate SDKs, build MCP servers, create Terraform providers and automate documentation.

Revenue
$5.1M
Customers
-
Year founded
2022
Funding
-
Team size
46
Growth
-
8
Theneo

San Francisco, California, United States

Stripe-like API Docs in just a few clicks

Revenue
$3.5M
Customers
-
Year founded
2022
Funding
-
Team size
23
Growth
-
9
Fern

New York, New York, United States

Input OpenAPI. Output SDKs and API documentation.

Revenue
$3.3M
Customers
-
Year founded
2022
Funding
-
Team size
22
Growth
-
10
Dreamfactory Software

Las Vegas, Nevada, United States

Dreamfactory offers an open source and commercial REST API backend for mobile, web, and IoT applications. Our Innovative API Automation Platform generates the REST API: fully documented, live, secured, and standardized with API best practices in place, allowing you to connect to over 60+ data sources and services with just a few simple clicks. We believe we offer a solution in the API space that is not just an incremental improvement over our competitors, but a significant leap in terms of the amount of time, headaches, and developer resources we will save you. Our platform incorporates more than a decade of deep experience involving how to securely build, deploy, and manage service-based applications in the enterprise. Dreamfactory can be installed on any server, connected to any SQL or NoSQL database, and used for developing HTML5 or native mobile applications. Our technology enables developers to build modern applications for the phone, tablet, or desktop without having to manage server-side code and complexity. Dreamfactory has innovated beyond this technology to be able to connect to anything instantly and provide a fully reusable, standardized REST API with full documentation. You do not need to rely on the DreamFactory engineering roadmap to handle emergent technologies - we will not be a bottleneck for your API needs. Dreamfactory also uses this REST API auto-generation to integrate anything almost instantly, completely on-premise, so that you can achieve complete IT environment homogenization inside a couple of months. This is achieved through the standardized way that APIs are deployed, meaning you are eliminating backend complexity for your development teams. If RESTification is the way forward for you, DreamFactory is the fastest and most enterprise-friendly way of doing it, because you get unlimited connections with a Dreamfactory license for significantly less cost; hence, you can scale Dreamfactory across your organization in a way that SnapLogic cannot. Dreamfactory additionally has unique API Orchestration capabilities that allow you to raise your team's data quality through allowing you to combine data from different data sources, or combine data from different tables within the same data source, with a single API call. This capability offers a new best practice in enterprise gateways. Finally, we have GraphQL autogeneration just around the corner and have new security updates about to be released that will make Dreamfactory the most secure API Management solution. We were built from the ground up based on the frustrations with the learning curve required for API solutions like Mulesoft and SnapLogic - and is why we have clients like McKesson (#6 on the Fortune 500 list) stating that Dreamfactory is significantly easier and cheaper than [major competitor], and wishing they found us sooner.

Revenue
$2.7M
Customers
-
Year founded
2005
Funding
$18.8M
Team size
19
Growth
61.39%
API Generation Software SaaS Companies | GetLatka