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Build Oyster API Integration Faster with Finch

About Oyster

Oyster, a distributed HR solution founded in January 2020, provides a global employment platform for employers. Today, they support hiring in 180+ countries and save employers the hassle of setting up local entities for each country. They also enable payroll automation and country-specific benefits. Oyster is recognized as a leader in global employment platforms by G2.

Global (180+ countries)
Employer Size
501-1,000 employees
Employer Count

Powering integrations for hundreds of platforms

Build with confidence

Why developers love building with Finch

Market-leading coverage

Instantly support 180+ systems (and counting) compatible with our normalized data structure and as we add new systems, turn them on with one click.

Enterprise-grade security

Trust Finch’s infrastructure that enforces TLS 1.2 for data in transit and encrypts data at rest using AES 256 bit encryption.

Read and write functionality

Seamlessly read company, census, and payroll data, while writing deductions and benefits contributions changes directly into the source of truth.

Best in class developer experience

Integrate Finch in hours with just a few lines of code and turn on the ability sync data with employers in as little as 30 seconds.

compatible systems
daily API calls
employers connected
U.S. employers covered

Unified API

One API to unite every provider

Finch standardizes employment data across every provider. So you don't have to.


What percentage of the market uses Oyster HR?

Given that Oyster HR boasts over 4,500 customers, and there were 6.1 million employers in the United States as of 2019, Oyster is estimated to serve 0.07% of the U.S. employer market.

How can I access the employment data in Oyster HR?

To access your customers’ employment data in Oyster HR, you have two options: 

  1. Build a custom 1:1 integration with Oyster via its public API, which enables automatic data sharing between the two apps. 
  2. Build a single integration with Finch to access the employment data housed in Oyster along with 200+ other employment systems.

Does Oyster HR have a public API?

If you are an Oyster HR partner or customer, you can access its API. Read about Oyster’s APIs.

You must first create an account and gain access before you can start building. Typically, third-party developers must become official partners, pass technical requirements checks, and invest in business development efforts.

How long does it take to build Oyster integration?

That largely depends on the integration method you choose. 

If you use Finch’s unified API to access the employment data in Oyster HR (alongside over 200 other HRIS and payroll systems), it can take as little as a few days. See our quickstart guide for more information.

If you instead decide to build a 1:1 integration leveraging Oyster’s public APIs, it can take weeks to months to receive your production keys. See Oyster’s developer portal for more information. 

Where can I find developer documentation and support?

If you’re building a 1:1 integration using Oyster HR’s public APIs, the company’s developer portal is the best place to start. That’s where you’ll find technical guides, API references, and the company’s changelog. 

If you’re integrating with Oyster HR via Finch’s unified API, navigate to our API docs. There, you’ll find a product demo, a quickstart guide for developers, an integration checklist, and developer guides, along with best practices to follow.

Of course, if you have any questions, we’d be happy to help answer them. Send your requests to

When does it make sense to leverage a unified employment API?

Unified employment APIs help developers access data from payroll and HRIS systems employers use. Specifically, these APIs are useful for accessing data from a broad range of employment systems, or collecting detailed information about their customers’ payroll and benefits programs. If your use case requires integrations with three or more employment systems, a unified employment API could save you hundreds of engineering hours and developer resources. 

Through a single integration, you can connect with over 200 employment systems (including Oyster)—unlocking up to 88% of the employer market. Once authorized by the employer, you’ll receive fresh data every 24 hours. From enterprise-grade security to read and write capabilities, Finch offers compelling benefits to employer-facing businesses of all shapes and sizes. Learn more

Check out our API docs for more info

Customer Stories

You’ll be in good company

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Access the global employment ecosystem

Create a best-in-class experience for your users today.

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