Authenticate to the iCIMS Applicant Tracking API with OAuth2 client credentials across US and EU data centers
domain: developer.icims.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Register an integration and obtain a client_id/client_secret through iCIMS' developer community portal.
Request an access token using the OAuth2 client-credentials grant.
Route API calls to api.icims.com for US-hosted customers or api-eu.icims.com for EU-hosted customers — using the wrong region won't reach the customer's data.
Call the Applicant Tracking Profiles API to read or update candidate profile fields, noting that Profile Types define which custom fields are exposed.
Handle the case where a field is hidden or locked by the customer's attribute configuration — it won't be returned or writable via the API regardless of your OAuth scope.
Known gotchas
Field-level visibility is governed by platform-side attribute configuration, not just your OAuth scope — a missing field may not be an integration bug.
US vs EU base URLs are a hard requirement for EU customers — verify which data center a given customer is on before building.
iCIMS distinguishes customer-specific integrations from partner/marketplace integrations, the latter requiring Partner Manager approval and sandbox validation before go-live.
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