What is a ATS MCP Server?

Each ATS platform exposes its own API, auth, and schema. A Knit MCP Server wraps that platform's real actions as AI-ready tools your agent can call directly — actions like Add Attachment to ATS Application, Add Tag to Candidate in ATS, Create a Note for a Candidate work the same way no matter which platform your agent is connected to, while Knit manages hosting, auth, and tool exposure underneath.

ATS Actions Available

Every action below is real and already live — not a roadmap item. Browse the full API reference →

Add Attachment to ATS Application

This API endpoint allows users to add an attachment to an ATS application. The request requires headers specifying the content type and accept type as 'application/json'. The body of the request must include the applicationId, jobId, candidateId, fileName, and fileType. Optional fields include fileContent, fileUrl, and contentType. The response will indicate success and provide the ID and download URL of the uploaded attachment if successful. If unsuccessful, an error message and type will be provided.

Add Tag to Candidate in ATS

This API endpoint allows adding a tag to a candidate in an ATS (Applicant Tracking System). The request requires the candidate ID, tag text, tag ID, application ID, and job ID. Tags can be added at the application level or candidate level depending on the ATS system. If the tag ID is not available, a dummy ID can be used. The response indicates whether the operation was successful or not.

Create a Note for a Candidate

This API endpoint allows the creation of a note for a candidate. The note may be tied to an application or exist as a global note depending on the ATS (Applicant Tracking System) behavior. The request requires headers specifying 'accept' and 'content-type' as 'application/json'. The request body must include 'candidateId', 'applicationId', and 'note'. The response will indicate success or provide an error message if the operation fails. Supported ATS include Greenhouse, Lever, SAP SuccessFactors, Workable, TeamTailor, Bullhorn, Ashby, SmartRecruiters, Breezy, Zoho Recruit, BambooHR ATS, JazzHR ATS, Recruitee, Oracle Taleo, and Pinpoint.

Create Application in ATS

This API endpoint allows the creation of an application in an ATS (Applicant Tracking System). The request can either include a candidateId for an existing candidate or a candidate object with details such as firstName, lastName, emails, and phones. The jobId and initialStageId are required fields. The response includes the success status and the IDs of the created application, job, and candidate. If the request fails, an error message is provided.

Get Candidate Tags

The Get Candidate Tags API retrieves tags associated with a candidate for a specific application and job. It requires three query parameters: candidateId, applicationId, and jobId, all of which are mandatory. The response includes a success flag and a data object containing an array of tags, each with an id and text. If the request fails, an error message is provided.

Get Global Tags from ATS

This API endpoint retrieves a list of global tags from various Applicant Tracking Systems (ATS) such as Greenhouse, Lever, Workday, SAP SuccessFactors, Ashby, Zoho Recruit, JazzHR ATS, and Recruitee. The request requires an 'accept' header specifying 'application/json'. The response includes a success flag and a data object containing an array of tags, each with an 'id' and 'text'. If the request fails, an error object with a message is returned.

Get Rejection Reasons from ATS

This API retrieves a list of rejection reasons from various Applicant Tracking Systems (ATS) such as Greenhouse, Lever, SmartRecruiters, TeamTailor, Breezy, Ashby, Zoho Recruit, Recruitee, and Oracle Taleo. The request requires an 'accept' header specifying 'application/json'. The response includes a success flag and an array of rejection reasons, each with a unique 'id' and 'text' description. In case of an error, an error message is provided.

Reject an Application

This API is used to reject an application for a job. It requires the application ID, job ID, candidate ID, rejection ID, and a note as input. The rejection ID should be obtained from the List Rejection Reasons API. The response indicates whether the operation was successful or not. If not successful, an error message is provided.

Update Application Stage

The Update Application Stage API allows users to update the stage of an application for a candidate in various supported applications such as Greenhouse, Lever, Oracle Cloud HCM, and others. The API requires a POST request with headers specifying 'accept' and 'content-type' as 'application/json'. The request body must include 'applicationId', 'toStageId', 'currentStageId', 'candidateId', and 'jobId' as required fields, with an optional 'subStageId'. The response will indicate success or provide an error message and type if unsuccessful.

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26 ATS MCP Servers you can set up today

ADP Workforce Now ATS

ADP Workforce Now ATS

Knit's ADP Workforce Now ATS MCP Server gives your AI agents instant, code-free access to every ADP Workforce Now ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Ashby ATS

Ashby ATS

Knit's Ashby MCP Server gives your AI agents instant, code-free access to every Ashby API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

BambooHR ATS

BambooHR ATS

Knit's BambooHR ATS MCP Server gives your AI agents instant, code-free access to every BambooHR ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Breezy HR

Breezy HR

Knit's Breezy HR MCP Server gives your AI agents instant, code-free access to every Breezy HR API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Bullhorn

Bullhorn

Knit's Bullhorn MCP Server gives your AI agents instant, code-free access to every Bullhorn API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Darwinbox ATS

Darwinbox ATS

Knit's Darwinbox ATS MCP Server gives your AI agents instant, code-free access to every Darwinbox ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

DayForce

DayForce

Knit's DayForce MCP Server gives your AI agents instant, code-free access to every DayForce API endpoint-read, write, and automate without Auth headaches or custom endpoints.

Greenhouse

Greenhouse

Knit's Greenhouse MCP Server gives your AI agents instant, code-free access to every Greenhouse API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

HiBob ATS

HiBob ATS

Knit's HiBob ATS MCP Server gives your AI agents instant, code-free access to every HiBob ATS API endpoint-read, write, and automate without Auth headaches or custom endpoints.

iCIMS

iCIMS

Knit's iCIMS MCP Server gives your AI agents instant, code-free access to every iCIMS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

JazzHR ATS

JazzHR ATS

Knit's JazzHR ATS MCP Server gives your AI agents instant, code-free access to every JazzHR ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Keka ATS

Keka ATS

Knit's Keka ATS MCP Server gives your AI agents instant, code-free access to every Keka ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Lever

Lever

Knit's Lever MCP Server gives your AI agents instant, code-free access to every Lever API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Oracle Taleo

Oracle Taleo

Knit's Oracle Taleo MCP Server gives your AI agents instant, code-free access to every Oracle Taleo API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Personio ATS

Personio ATS

Knit's Personio ATS Server gives your AI agents instant, code-free access to every Personio ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Recruit ATS

Recruit ATS

Knit's Recruit ATS MCP Server gives your AI agents instant, code-free access to every Recruit ATS API endpoint-read, write, and automate without Auth headaches or custom endpoints.

Recruitee

Recruitee

Knit's Recruitee MCP Server gives your AI agents instant, code-free access to every Recruitee API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Recruiterflow

Recruiterflow

Knit's Recruiterflow MCP Server gives your AI agents instant, code-free access to every Recruiterflow API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Sage Recruitment

Sage ATS

Knit's Sage ATS MCP Server gives your AI agents instant, code-free access to every Sage ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

SAP SuccessFactors ATS

SAP SuccessFactors ATS

Knit's SAP SuccessFactors ATS MCP Server gives your AI agents instant, code-free access to every SAP SuccessFactors ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Smartrecruiters

Smartrecruiters

Knit's SmartRecruiters ATS MCP Server gives your AI agents instant, code-free access to every SmartRecruiters ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Teamtailor

Teamtailor

Knit's Teamtailor MCP Server gives your AI agents instant, code-free access to every Teamtailor API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

UKG Pro Recruiting

UKG Pro Recruiting

Knit's UKG Pro ATS MCP Server gives your AI agents instant, code-free access to every UKG Pro ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Workable

Workable

Knit's Workable MCP Server gives your AI agents instant, code-free access to every Workable API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Workday ATS API

Workday ATS

Knit's Workday ATS MCP Server gives your AI agents instant, code-free access to every Workday ATS API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

Zoho Recruit

Zoho Recruit

Knit's Zoho Recruit MCP Server gives your AI agents instant, code-free access to every Zoho Recruit API endpoint-read, write, and automate without OAuth headaches or custom endpoints.

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Why Knit for ATS MCP Servers

Serverless by default

Every ATS MCP Server spins up with zero infrastructure — Knit scales, patches, and monitors it for you.

Auth handled for you

OAuth, SAML, service accounts — Knit manages credentials and refreshes across every ATS platform.

Add a missing platform in days

AI-powered connector building means a missing ATS platform isn't a months-long wait.

ATS MCP Servers vs. building your own

Building it yourself

  • A separate MCP Server for every ATS platform you support
  • Host, patch, and scale each server yourself
  • You build and maintain OAuth for each platform
  • No tool search — your agent's context fills with unused tools
  • Engineering effort grows with every new platform
  • Weeks to months per platform, per engineer

With Knit

  • One plug-and-play MCP Server per ATS platform, hosted for you
  • Serverless by default — Knit scales, patches, and monitors it
  • Auth handled for you across every platform
  • Semantic tool search keeps agent context lean
  • Describe a missing platform to the Integrations Agent and get it built instantly
  • Live in days, not months

Customer Stories

See how leading technology firms are scaling their operations

Amazing Product With Exceptional Support from the team. By using Knit we managed to speed up our development by orders of magnitude.
H
Huynh H
Developer, Multiplier
A brilliant tool to let you seamlessly integrate with many different systems. It is very easy to integrate with and customer support is next level.
J
Jayesh
Co-Founder, Scrut
Seamless integration experience. Well-documented, self-explanatory APIs, and excellent service and support.
P
Poorvi
Product Manager, Onsurity
Easy to integrate. Knit's dashboard is intuitive for setting up and testing integrations, and the sandbox is extremely useful during development.
A
Aditya
Product Lead, RazorpayXPayroll
Knit shipped a brand-new Timesheet API in a week and handed us a ready-to-use NetSuite sandbox. That velocity is priceless when you're running payroll in 40+ countries.
R
Rohit Singh
GM, Payoneer Workforce Management

#1 in Ease of Integrations

4.9 out of 5 stars

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FAQ

Common questions about ATS MCP Servers

Which ATS platforms have a MCP Server?

26 ATS platforms today — including ADP Workforce Now ATS, Ashby ATS, BambooHR ATS and more. Missing one you need? Knit's AI-assisted connector-build process typically adds a new one within days.

Do ATS mcp servers support both reading and writing data?

Yes. Every action can both read and write, so your agent can pull ATS data and push updates back to the source app, not just query it.

How does authentication work across ATS platforms?

Knit manages OAuth, credential storage, and refresh for every ATS platform — your team never wrestles with tokens, and there's nothing to configure per platform.

What is the timeline for adding a missing ATS platform?

Typically days, not months — the same AI-based connector-build tooling that lets us maintain the 26 ATS mcp servers already live.

Do you store ATS data or customer PII?

No. Knit acts as a stateless passthrough — data is processed on our application server and returned directly to your agent, without being stored on Knit's servers.

What is the pricing model, and is there a free trial?

You choose the model that fits your business — pricing based on integrated accounts, or based on API call volume. Every plan includes a 30-day free trial before billing starts.

See all FAQs

From the blog

Full list of Knit’s ATS API Guides

Full list of Knit’s ATS API Guides

This directory is a live list of all ATS API integration guides we have written at Knit. Use it to quickly find the guide related to the specific ATS APP you want to learn more about.

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