The Unified API for
HR & Payroll Integrations
Merge is a single API to add hundreds of integrations to your app.
Trusted to Power Integrations Globally
What is a Unified API?
Add hundreds of third-party integrations with a single API
Build in-app functionality powered by data continuously synced for each integration and connected customer account.
One data model
Don't muck with data transformations and API quirks.
Common Models provide normalized, constantly synced data for each category of integrations.
Limitless Use Cases
Any integration use case imaginable,
you can build with Merge
We'll never block your product roadmap.
With Merge, support any integration use case you can dream up.
Access any data
Custom Fields, Passthrough Requests, and Remote Data give you access to any data not included in Common Models.
Push and pull anything
POST and PATCH as easily as you GET, with full support for related and nested objects.
Get real-time data via webhooks
Webhooks notify you when integrations have fresh data. No polling required.
Write elegant code — no clutter, no pain
Quickly and painlessly add integrations with an accessible API design, SDKs in multiple languages, and in-depth documentation.
Save a developer, use our support toolbox
Gone are the days of engineers providing support to your customers.
Fully searchable logs, automated issue detection, and customizable alerts provide everything your customer success team needs to shine.
Unlock revenue and close more deals
Launch integrations in days — not quarters — and never lose another deal.
Your sales team will thank you.
Focus on building your core product
Spare your developers hundreds of hours for each integration they build and maintain.
Your product team will thank you.
Increase customer satisfaction
A seamless integration experience shows you care about the customer experience and demonstrates your product's value.
Your customers will thank you.
Enterprise security out of the box
SOC 2, ISO, GDPR, and more
Merge maintains SOC 2 Type II, ISO 27001, and HIPAA certifications and adheres to GDPR and CCPA.
Serious data security
Merge encrypts data at rest and in transit, and protects PII with an additional app-layer encryption.
Scalable, fault-tolerant, and compliant
Multi-region infrastructure ensures availability to billions of requests.
Choose where to host your data — US, EU, and anywhere else — based on customer and GDPR requirements.
Love for Merge
“With Merge, managing API integrations shifted from a technical task for engineers to something our customer support could easily handle.”
Chief Product Officer
Merge should make you and your end users’ lives easier: less work in building multiple integrations, real-time data syncing, and accurate data.
Senior Director of Product Management
We don't have that many people, and we have a lot to build. Merge's easy access to enabling integrations allowed us to move forward.
It's so sick -- it took me 2 days to build out this CRM integration and now we can connect to 20+ CRMs in Causal!
Merge allows us to integrate with dozens of HRIS and ATS providers, cutting down our development time and substantially expanding our market opportunity.
It takes my team a matter of an hour or less to identify and address integration issues using the Merge Dashboard. Previously, it may take them up to 5 hours.
Director of Solutions Architecture
Merge has saved us thousands of engineering hours by funneling a significant amount of 3rd parties into a single set of APIs for us to consume.
Our customers absolutely LOVE the fact that we integrate with all major HRIS - all thanks to Merge.
Head of Business
Merge is truly a game-changer for the industry, for our company, and for our users. I actually look forward to setting up integrations now instead of dreading them!
Senior Product Manager
People think that getting the integrations set up will take a quarter. With Merge, we just onboarded a $250M-revenue brand in two days.