ATS, MCP, and Zapier: Comparing integrations across 10 leading assessment platforms

Your assessment and interview platform should work seamlessly with your applicant tracking system. Connecting the two helps recruiters automate invitations, track candidate progress, and review results without switching tools or manually copying information.

Beyond ATS integrations, MCP connects assessment data to AI assistants like Claude and ChatGPT, while Zapier automates workflows across other business applications. But support varies, and accessing these integrations often requires a higher-tier subscription or add-on.

We reviewed the ATS integrations, MCP offerings, Zapier connections, and integration pricing of the 10 platforms featured in our analysis of the most frequently mentioned candidate evaluation brands.

Native ATS integrations

Start with the ATS your team already uses. Below is an alphabetical list of systems with documented native integrations across the 10 assessment platforms.

• Ashby: Coderbyte, CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, TestGorilla

• Avature: HackerRank

• BambooHR: iMocha, TestGorilla

• BrassRing: HackerRank

• Breezy HR: HackerRank, TestGorilla

• Buk: TestGorilla

• Bullhorn: iMocha, TestGorilla

• CEIPAL: iMocha

• Darwinbox: HackerRank, iMocha

• eRecruiter: SkillPanel

• Freshteam: Codility, HackerRank, iMocha, TestGorilla

• Gem: CoderPad, CodeSignal

• Greenhouse: Coderbyte, CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, SkillPanel, TestDome, TestGorilla

• Growhire: Coderbyte

• HireCraft: iMocha

• iCIMS: Coderbyte, CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, TestGorilla

• InHire: Coderbyte

• JazzHR: CodeSignal, HackerEarth, HackerRank, SkillPanel, TestGorilla

• Jobvite: CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha

• Kula: HackerRank

• Lever: Coderbyte, CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, SkillPanel, TestGorilla

• LinkedIn Talent Hub: CodeSignal, HackerEarth, HackerRank, SkillPanel

• Manatal: Codility

• Naukri RMS: Codility

• Northstarz: HackerRank

• Oracle Recruiting: HackerRank

• Oracle Taleo: CodeSignal, Codility, HackerRank, iMocha

• PageUp: iMocha

• Pinpoint: Coderbyte, Codility

• Recruiterbox / Trakstar Hire: HackerEarth

• Recruitee / Tellent: CoderPad, Codility, HackerRank, iMocha, SkillPanel, TestDome, TestGorilla

• Rippling: HackerRank

• SAP SuccessFactors: CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, TestGorilla

• SmartRecruiters: Coderbyte, CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, SkillPanel, TestDome, TestGorilla

• Softgarden: Codility

• SumTotal: iMocha

• TalentLyft: TestDome

• Teamtailor: Coderbyte, Codility, HackerRank, SkillPanel, TestGorilla

• UKG: Coderbyte

• Workable: Coderbyte, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, SkillPanel, TestGorilla

• Workday: Coderbyte, CoderPad, CodeSignal, Codility, HackerRank, iMocha, TestGorilla

• Zoho Recruit: HackerEarth, HackerRank, iMocha, TestGorilla

Integration capabilities vary: a connector may support assessment invitations and results without supporting live interview scheduling. Confirm that the connection covers your intended workflow and is included in your plan. Some directories retain older product names, so availability to new customers should also be confirmed.

Sources: official integration directories and documentation from Coderbyte, CoderPad, CodeSignal, Codility, HackerEarth, HackerRank, iMocha, SkillPanel, TestDome, and TestGorilla. Growhire is listed on Coderbyte’s website.

Custom integrations

MCP and Zapier extend assessment workflows beyond your ATS. MCP connects an assessment platform to an AI assistant, while Zapier automates tasks between applications.

Which platforms have an MCP?

• Coderbyte: Connects Claude or ChatGPT to assessment, candidate, interview, and report data so teams can review results using natural language — Documentation

• Codility: Helps teams create, validate, and publish custom assessment tasks from an AI coding assistant — Documentation

• HackerRank: Provides read-only access to assessments, candidates, interviews, and reports; its help center describes limited availability through an account manager — Documentation

• CodeSignal: Connects compatible AI assistants to assessment and interview data, with tools for retrieving information and making changes; requires an eligible API key — Documentation

Which platforms are on Zapier?

• Coderbyte: Zapier app

• HackerRank: Zapier app

• SkillPanel: Zapier app, currently listed under its former name

• TestDome: Zapier integration documentation

• TestGorilla: Zapier setup guide

Pricing: What does integration access cost?

The relevant price is the plan that unlocks the integrations you need. Several platforms reserve ATS connections and automation capabilities for higher-tier subscriptions or paid add-ons.

The table below separates access to native ATS integrations, official MCPs, and verified Zapier apps. Prices are in USD and exclude taxes and separate subscriptions to your ATS, AI assistant, or Zapier. A dash means an offering is not included in this comparison.

Pricing details and sources

• Coderbyte: Published annual pricing lists Pro at $1,799/year plus $1,499/year for API, ATS, and MCP integrations. The combined cost is $3,298/year, equivalent to approximately $274.83/month. The API-key documentation also connects the add-on to Zapier. Integration eligibility on the lower-cost candidate-credit plan was not conclusively established, so this is the lowest verified annual package — Pricing, add-on documentation

• CoderPad: Its Interview documentation requires an Enterprise plan for ATS integrations, and Enterprise pricing is custom — Integration requirements, pricing

• CodeSignal: Grow includes basic ATS integrations and Basic API access. Pro adds enterprise ATS integrations and Advanced API access. The MCP requires an eligible API key, but its documentation does not establish a definitive minimum subscription — Pricing, MCP requirements

• Codility: The pricing page explicitly includes MCP on Scale and enterprise integrations on Custom. Its MCP help article says the feature was included in all existing plans at launch, so eligibility on the lower-priced Starter plan needs confirmation — Pricing, MCP documentation

• HackerEarth: Published monthly pricing lists ATS integrations on Scale at $399/month — Pricing

• HackerRank: The Zapier setup guide explicitly requires Enterprise. Current ATS integration pricing could not be verified from its pricing page, and its MCP help article does not publish a minimum price — Zapier requirements, pricing, MCP access

• iMocha: Its pricing route directs buyers to a demo inquiry rather than publishing integration-access pricing — Pricing inquiry

• SkillPanel: Its current pricing page advertises workforce skills management from $1 per employee per month. That is not a verified price for candidate assessments or their integrations — Pricing

• TestDome: All features are included on every package, including ATS integrations and API access. Its integration page documents Zapier, and Starter credits do not expire — Pricing, integrations

• TestGorilla: ATS integrations and API access are included on Plus, and its Zapier guide confirms the same plan requirement — Pricing, Zapier requirements