12 examples of unified APIs

A unified application programming interface (API) solution allows you to implement dozens, if not hundreds, of integrations in a given software category simply by building to its API. 

Given the inherent value these types of tools provide, their demand has shot up—which has led to a variety of new solutions entering the market.

As the market grows increasingly crowded, it can become difficult to discern the vendors that fit your needs best. We’ll try to make this process easier by highlighting several unified API examples for specific categories of software.


Examples of unified APIs

Common examples include Merge, Apideck, Codat, Finch, and Kombo. Merge, however, stands out from others in the market by offering the most comprehensive and reliable unified APIs across core B2B software categories.

Let’s take a closer look at unified API examples across common types of software.


Examples include Merge, Apideck, Revert, Vessel, and Knit. 

As you can probably guess, these unified API platforms integrate with CRM tools like Salesforce and HubSpot. But Merge also integrates with other commonly-used CRM apps and some that are more niche, from Pipedrive to SugarCRM to Copper to Zoho CRM. 

Related: Examples of API integration


The list consists of vendors like Merge, Apideck, Finch, and Kombo.

These vendors likely provide integrations with mainstream solutions like Workday, BambooHR, and UKG Pro. Merge provides integrations with dozens of additional HRIS solutions, all but ensuring that organizations are able to build the HRIS integrations they need.

A screenshot that shows some of Merge's HRIS integrations
A look at some of the HR integrations Merge supports


Similar to HRIS, the ATS market includes Merge, Apideck, Kombo, and Finch.

An ATS unified API commonly integrates with Greenhouse, Lever, Jobvite, and Workable. Merge also offers integrations with lesser-known apps, like ApplicantStack, Recruitive, and Freshteam.


Within the ticketing category there’s Merge, Poozle, and Truto.

Popular integrations take the form of Asana, Clickup, Wrike, ServiceNow, and Jira Service Management. Merge also integrates with GitHub, Freshservice, HelpScout, and dozens of other ticketing tools.

A screenshot that shows some of Merge's ticketing integrations
A snapshot of Merge’s ticketing integrations

A guide to universal APIs


Examples take the form of Merge, hotglue, Apideck, and Rutter. 

Accounting unified APIs often integrate with NetSuite, Freshbooks, Xero, and Intuit Quickbooks. Through Merge, you can also integrate with other accounting systems that cater to organizations of different sizes, such as Clear Books, Sage Intacct, Wave Financial, and so on.

File storage

You might come across Merge, Apideck, Kloudless.

File storage unified APIs generally integrate with Box, Dropbox, and Google Drive. Through Merge, you can also connect to apps like OneDrive and Sharepoint.

Marketing automation

Common examples include Merge, Apideck, Vessel

Marketing automation unified APIs tend to integrate with apps like HubSpot, ActiveCampaign, and MailChimp. But with Merge, you can also connect to Customer.io, GetResponse, Podium, among several others.

Build best-in-class product integrations at scale with Merge

Merge, the leading unified API platform, not only offers all the categories of unified APIs covered above but also provides:

  • A seamless and intuitive in-product authentication and authorization experience for end-users
  • Comprehensive common models along with the ability to pull in custom data via features like Field Mapping
  • Enterprise-grade security controls along with SOC 2 Type II, ISO 27001, and HIPAA certifications

To learn more about Merge and see it in action, you can schedule a demo with one of our integration experts.