Connect HackerEarth to Kula

Last updated: August 14, 2026

Connecting HackerEarth lets you send coding tests and exercises to candidates from inside Kula. HackerEarth is the one assessment integration that uses a client ID and client secret rather than a single API key.

Who can do this: Super Admin, Admin 

Where to find it: Settings → Organization → Organization integrations → Assessments

Connect HackerEarth

  1. Go to Settings → Organization → Organization integrations.

  2. Find the HackerEarth card under Assessments.

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  3. Turn the toggle on. The HackerEarth Settings panel opens.

  4. Enter your Client ID.

  5. Enter your Client Secret.

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  6. Click Verify Credentials.

  7. Both fields are required — the Verify button stays disabled until you fill in each one. If the credentials are wrong you will see "Incorrect credentials. Double-check the values and try again." and nothing is saved.

You need a HackerEarth plan with a recruiter licence, and an activated recruiter-type HackerEarth user account with company admin permissions. Both the client ID and the client secret come from HackerEarth.

Sending an assessment to a candidate using HackerEarth on a job

Once connected, HackerEarth becomes an activity you can add to a interview stage so candidates reaching that stage receive the test. For the full flow, see [Add an assessment to a job stage]

Re-authenticate HackerEarth

If your HackerEarth credentials are rotated or revoked, the card shows Invalid and assessments stop sending.

  1. Hover over the HackerEarth card.

  2. Click Re-authenticate.

  3. Enter the current Client ID and Client Secret and verify again.

Good to know

  • HackerEarth needs two values, not one. A single API key will not work.

  • Assessments cannot be sent in bulk to a group of candidates through HackerEarth — each candidate is sent individually.

  • Turning the toggle off disconnects the integration. Assessments already sent to candidates are not withdrawn from HackerEarth.

FAQ

Our HackerEarth assessments suddenly stopped sending — do we need to set the integration up again? Usually not. If the card shows Invalid, the credentials were rotated or revoked on the HackerEarth side. Hover over the card, click Re-authenticate, and enter the current Client ID and Client Secret.

Can I send a HackerEarth assessment to a whole stage of candidates at once? No. HackerEarth assessments go out one candidate at a time. If you need bulk sending today, Hireflix supports sending to everyone in a stage. For more, see Connect Hireflix to Kula.

Need help? If you have questions or need assistance, reach out to us at support@kula.ai or use the in-app chat.