Merge Docs

Get started

Add Link and connect to our Unified API to start offering integrations in your product
API reference
Get to know the Merge Unified API by exploring our API reference.
Fundamentals
Basics
Merge API Basics

Nuts and bolts like authentication, pagination, and webhooks

Platform Categories
hris
HRIS

Integrate with multiple HR platforms using Merge's Unified API

ats
ATS

Integrate with multiple applicant tracking platforms using Merge's Unified API

accounting
Accounting

Integrate with multiple accounting platforms using Merge's Unified API

ticketing
Ticketing

Integrate with multiple ticketing platforms using Merge's Unified API

crm
CRM

Integrate with multiple CRM platforms using Merge's Unified API

filestorage
File Storage

Integrate with multiple File Storage platforms using Merge's Unified API

Guides

In-depth guides to integrate with Merge and third-party platforms.

Unified API basics

Fundamentals of interacting with the Merge Unified API.
Authentication
Authenticate requests to Merge's API
Syncing data
Efficiently pull data from Merge into your app
Rate limits
Learn about rate limits for the Merge API
Versioning
Learn about versioning for the Merge API
Idempotency
Learn about idempotency for the Merge API
Pagination
Paginate bulk data from Merge's API
Sync frequency
Learn about the different sync frequencies for data from third parties to Merge.
Webhooks
Use Merge's webhooks to keep your application up to date in real-time
Async operations
Learn about asynchronous operations for the Merge API
Model Context Protocol (MCP)
Learn about MCP for the Merge API

Merge Link

Connect your users to third-party platforms.
Embedded Link
Add Link to your product
Single integration
Direct your user to setup the configuration of a single integration
Magic Link
Integrate your end users without any frontend code

Writing data

Write data to third-party platforms through the Merge Unified API.
Merge writes
Write data to third-party platforms
Troubleshooting writes
Learn about the tools used to troubleshoot POST requests

Platform and account metadata

Fetch integration and account metadata.
Integration Metadata
Programmatically fetch information about the integrations Merge offers
Linked Accounts
Programmatically fetch available operations for a Linked Account

Supplemental Data

Get data from third-party platforms in its original format
Remote Data
Get the latest integration data in the original format Merge received it in
Remote Field classes
Read and write non-mapped data in a standardized format via Merge's Unified API
Custom Objects
Use Merge to interact with custom objects on your users' CRM platforms.
Passthrough Request
Make a request to the integration API using linked account credentials
Field Mapping
Map non-mapped data from your users' platforms to Merge Common Models
View more