StackOne

StackOne Unified CRM API (Legacy)

Legacy (no longer in active development; existing functionality remains supported). StackOne Unified CRM API provides a standardized interface for managing customer contacts, accounts, and opportunities across multiple CRM platforms, ensuring a consistent view of customer data.

GitHub

Documentation

📖
Documentation
https://docs.stackone.com/legacy-unified-apis/introduction
📖
APIReference
https://docs.stackone.com/crm/api-reference/contacts/creates-a-new-contact

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API entry from apis.yml

apis.yml Raw ↑ 
aid: stackone:crm-api
name: StackOne Unified CRM API (Legacy)
x-status: legacy
x-status-evidence: The Legacy Unified APIs are no longer in active development. Existing functionality
  remains supported. (https://docs.stackone.com/legacy-unified-apis/introduction, fetched 2026-10-14)
tags:
- Contacts
- CRM
- Unified API
- Legacy
tags_raw:
- Contacts
- CRM
- Customer Relationship Management
- Unified API
- Unified-API
- Legacy
humanURL: https://docs.stackone.com/legacy-unified-apis/introduction
properties:
- url: https://docs.stackone.com/legacy-unified-apis/introduction
  type: Documentation
- url: https://docs.stackone.com/crm/api-reference/contacts/creates-a-new-contact
  type: APIReference
description: Legacy (no longer in active development; existing functionality remains supported). StackOne
  Unified CRM API provides a standardized interface for managing customer contacts, accounts, and opportunities
  across multiple CRM platforms, ensuring a consistent view of customer data.