Bring Applicant Tracking
to LangChain
Create your Vinkius account to connect CATS ATS to LangChain and start using all 8 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the CATS ATS MCP Server?
Connect your CATS Applicant Tracking System (ATS) account to any AI agent and take full control of your recruitment pipeline through natural conversation. Streamline candidate sourcing and job management.
What you can do
- Candidate Discovery — Search and list candidate profiles with detailed contact information and status natively
- Job Oversight — List and retrieve details for all active job orders and open positions flawlessly
- Activity Tracking — Monitor recent recruitment activities, notes, and interactions securely
- Organizational Mapping — List client companies and associated contacts within your ATS flawlessly
- HAL-native Integration — Access deep object relationships through the CATS v3 HAL API structure in real-time
- Pipeline Analysis — Audit candidate progress across different recruitment stages directly within your workspace
How it works
- Subscribe to this server
- Enter your CATS v3 API Key (obtained from your account Administration)
- Start managing your recruitment from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Recruiters & Headhunters — search candidate databases and review application statuses using natural language
- Hiring Managers — monitor active job orders and recent candidate activities without opening the dashboard
- HR Administrators — manage client company data and staff contacts straight from their chat interface
- Talent Acquisition Teams — automate candidate lookups and recruitment reporting workflows
Built-in capabilities (8)
Get detailed information for a specific candidate
Get detailed information for a specific job order
List recruitment candidates
List job orders and open positions
List recent recruitment activities and notes
List client companies in the ATS
List contacts associated with companies
Search for candidates using filters
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with CATS ATS through native MCP adapters. Connect 8 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine CATS ATS MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across CATS ATS queries for multi-turn workflows
CATS ATS in LangChain
Why run CATS ATS with Vinkius?
The CATS ATS connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 8 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect CATS ATS using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
CATS ATS and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect CATS ATS to LangChain through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
CATS ATS for LangChain
Every request between LangChain and CATS ATS is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can I search for candidates by their name or status?
Yes! Use the search_candidates tool with a filter like first_name:"John". The agent will return matching profiles from your CATS database.
How do I see the latest notes added to a candidate?
Use the list_recruitment_activities tool. Your agent will fetch the recent activity feed, which includes notes, status changes, and emails for all candidates.
Where do I find my CATS v3 API Key?
Log in to your CATS account, go to 'Administration' and look for the 'API' section. You can generate and copy your v3 key from there.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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