Best Unified APIs Software
Unified APIs (application programming interfaces), also called universal or normalized APIs, provide a single “meta" API that is used to interact with multiple software applications within the same category. These tools act as an abstraction layer that handles communication with multiple applications by aggregating and standardizing their APIs and data models into a single API.
SaaS providers use these tools to improve the ease of building customer-facing integrations to multiple applications in the same category, such as accounting, banking, cloud storage, CRM, email, HR, payroll, or scheduling systems. They can save teams significant time and resources when building numerous similar integrations. For example, a SaaS product team may want to provide their customers with integrations that import employee data from multiple HR systems into their application. Rather than building a separate integration to each HR system, they can build one integration to a unified HR API that connects their application with all desired HR applications. Leveraging a unified API provides a single, simplified API design and a consistent developer experience.
There is some relationship between unified APIs and embedded integration platforms, as they allow product teams to build native integrations with their customers’ third-party applications. However, unified APIs are typically code focused and used by software developers to build straightforward integrations within a single category. In contrast, embedded integration platforms are typically low-code tools used by both developers and non-developers to build a broader range of integrations within both common and vertical-specific software categories.
To qualify for inclusion in the Unified APIs category, a product must:
Best Unified APIs Software At A Glance
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Merge Unified is the leading Unified API for thousands of organizations, including frontier LLMs, Fortune 500 organizations, and other B2B SaaS companies. Merge Unified allows businesses to add hun
- Software Engineer
- CEO
- Computer Software
- Information Technology and Services
- 62% Small-Business
- 29% Mid-Market
2,351 Twitter followers
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- User Satisfaction
- Seller Details
Finch is a unified API and connectivity platform that connects HR, benefits, and financial applications to 250+ HRIS and payroll providers. By serving as the intermediary, Finch helps B2B companies on
- CEO
- Financial Services
- Computer Software
- 49% Small-Business
- 39% Mid-Market
743 Twitter followers
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- User Satisfaction
- Seller Details
Kombo is a global unified API product for the future-of-work space – offering HR, ATS, and Payroll integrations out-of-the-box. Instead of having to build and maintain many APIs themselves, Kombo'
- CTO
- CEO
- Computer Software
- Human Resources
- 57% Small-Business
- 26% Mid-Market
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- User Satisfaction
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Knit is a robust integration solution designed to facilitate seamless connections with over 150 applications, including HRIS, CRM, accounting systems, ERPs, and more. The platform enables users to est
- Computer Software
- Information Technology and Services
- 79% Small-Business
- 21% Mid-Market
18 Twitter followers
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- User Satisfaction
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StackOne is an integration platform for AI agents. StackOne provides hundreds out-of-the-box action-rich connectors, an infrastructure for reliable execution, and developer tools to design, ship,
- Human Resources
- E-Learning
- 60% Small-Business
- 33% Mid-Market
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- User Satisfaction
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Apideck eliminates the complexity of integrations with a single real-time API that connects to 200+ platforms across Accounting, CRM, HRIS, File Storage, and eCommerce without the technical overhead.
- CTO
- Computer Software
- Information Technology and Services
- 79% Small-Business
- 14% Mid-Market
869 Twitter followers
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Refold is an AI powered integration platform and AI native iPaaS that uses autonomous integration agents to build, automate, and maintain enterprise workflows across SAP, Oracle, Workday, NetSuite, Sa
- Co-Founder
- Computer Software
- Information Technology and Services
- 54% Small-Business
- 39% Mid-Market
80 Twitter followers
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- User Satisfaction
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Integrate your product or AI agent with 500+ APIs. With Nango you get API auth, 2-way syncs, LLM tool cals, and unified APIs all on one platform. Extend and customize integrations will full contro
- Developer
- Information Technology and Services
- Computer Software
- 44% Small-Business
- 37% Mid-Market
382 Twitter followers
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- Seller Details
Smartcar is a developer-friendly API platform that enables applications to seamlessly integrate with connected vehicles across over 40 automotive brands. By providing standardized access to vehicle da
- 47% Mid-Market
- 33% Small-Business
1,006 Twitter followers
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Bindbee is your complete data infrastructure for the employment systems. Connect to any HRIS, ATS, or Payroll in minutes using Bindbee's Unified API. Bindbee enables you to build and maintain integr
- 68% Small-Business
- 32% Mid-Market
- Overview
- User Satisfaction
- Seller Details
400+ integrations across 25 Unified APIs — Unified is the real-time unified API + MCP platform for AI-powered SaaS applications. One customer integration request can take a software team months to
- Computer Software
- 91% Small-Business
- 4% Mid-Market
82 Twitter followers
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- User Satisfaction
- Seller Details
Codat helps banks build deeper connections with business customers. We offer products that make it easy to access, synchronize and interpret data from customers’ financial software for specific use c
- Financial Services
- Insurance
- 71% Small-Business
- 21% Mid-Market
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Integrations & Agents to ship financial products in days, not months. Leverage one API to add integrations across many accounting, commerce, ads, payment platforms and more. Purpose-built to suppo
- 59% Small-Business
- 41% Mid-Market
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Hundreds of thousands of developers around the world use Nylas to increase velocity and seamlessly build customizable email and scheduling capabilities through state-of-the-art APIs. Nylas is the only
- Product Manager
- Computer Software
- Information Technology and Services
- 66% Small-Business
- 29% Mid-Market
4,542 Twitter followers
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- User Satisfaction
- Seller Details
The Easy API is a unified API interface designed to simplify the integration of multiple data services into a single, cohesive system. Established in 2010, it offers developers access to a diverse ran
- Software Developer
- Computer Software
- Information Technology and Services
- 61% Small-Business
- 34% Mid-Market
