Run a browser-local preflight
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What this checks
/crm/v4/paths that should be migrated to supported date-based versions before March 30, 2027.- Pipelines API v1 references such as
/crm-pipelines/v1/, which stop working after December 4, 2026. - Legacy semantic-version CRM paths (
/crm/v1/,/crm/v2/,/crm/v3/) that deserve an explicit version-support review even where HubSpot has not announced a universal retirement date. /2026-09/CRM write paths that need testing against conditional required properties, Create Record requirements, and association permissions.- Legacy private-app provisioning assumptions for new deployments, where Project-based Service Keys are the current path for new in-account system-to-system integrations.
- Date-based API adoption signals such as
/2026-03/and/2026-09/.
This is static analysis, not a guarantee of compatibility. It intentionally does not connect to your HubSpot CRM or inspect customer records.
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This browser-local software is currently free. No paid offering is attached to this page.
View PAL Pro softwarePAL Pro is a separate self-serve software subscription. The HubSpot migration preflight remains free.