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Get a custom object schema

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Get a custom object schema

with HubSpot
Works with AI assistants

Use HubSpot: its Hubspot Basic API lets you get a custom object schema in a single step (GET /crm-object-schemas/2026-09/schemas/{objectType}). HubSpot also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.

  • What properties does my custom object have?
  • Can I see one custom object's schema with its associations?
Say it to your AI assistant
  • Show the schema for custom object {objectType}.
  • Get custom object {objectType} schema with association definitions ({includeAssociationDefinitions}).
For your developer

GET /crm-object-schemas/2026-09/schemas/{objectType} in Hubspot Basic API. Full spec on APIs.io.

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