Mercury ATS API integration & MCP server
Deliver real-time ATS faster, close sales deals sooner, and scale without an integration backlog.
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Add Mercury ATS and 183 other pre-built ATS integrations
Mercury ATS integration facts
- Authentication
- API key
- Categories
- ATS, CRM, HR & Directory
- Webhooks
- Virtual
- Write support
- Read and write
- Supported objects
- candidate, job, application, application status, company, activity, document, scorecard, interview, contact, event, employee
Real-time data to fuel countless ATS use cases
Power AI copilots, insights, predictive analysis, and automation with a modern integration infrastructure that scales alongside you.
Source Candidates
Enable users to source candidates and send updates back to their ATS.
Assess Candidates
Trigger assessments and send updates back to your users' ATS.
Promote Jobs
Enable users to post to multiple job boards and send updates to their ATS.
Unified API data-models and methods
The modern Unified API+MCP platform, built differently
Real-time, pass-through
Every request hits the source API live. No caching or sync jobs: reads and writes go to the source API, and native and virtual webhooks report changes on supported integrations.
No customer records at rest
No customer records at rest; connection credentials and operational metadata are encrypted at rest. Each workspace runs in one region: US on every plan, EU or AU on Pro and Scale.
Common objects across every category
Unified objects, endpoints, scopes and errors across every category, plus raw payloads when you need vendor-specific fields.
Custom fields & objects
Read and write custom fields through the Metadata API; reach custom objects through raw fields and the Passthrough API.
AI-ready integrations
Built for AI products: Unified MCP gives LLMs scoped access to integration tools, with options to limit permissions and hide sensitive fields.
Predictable pricing, no lock-in
Usage-based pricing that scales with API volume, not with the number of customers you connect. Own your credentials and export them anytime; tokens issued to your own OAuth app keep refreshing after you leave.
Add a Mercury ATS integration to your application in hours
1Test drive integrations
Effortlessly test API calls, explore endpoints, and try out the Mercury ATS integration using synthetic data in our Sandbox environment.
2Authorize connections
Drop in our Authorization component with a single line of code. Your users can then connect and grant access to their Mercury ATS data.
3Start making API calls
Use the Connection ID to interact with Mercury ATS via our unified API. We handle maintenance and updates so you can focus on your product.
Authorization handled for you
A pre-built authorization component and API handle each vendor's sign-in, so your code works with a connection ID.
See documentationIntegrate with all the major ats applications
Unified.to makes it possible to integrate once to a unified API to connect with all the applications your customers use, so you can train AI models, build advanced automation, and expand your market.
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Integrate once, launch in days
With 2258+ pre-built integrations and zero maintenance burden, Unified.to unlocks your team's integration potential, so you can unblock growth.