API Changelog

Stay up to date with API changes and improvements.

All notable changes to the Propstreet Public API are documented here. This project uses Semantic Versioning.


[1.0.0] - December 2025

Added

Core Resources:

  • Contacts - Full CRUD, search, batch operations
  • Companies - Full CRUD, search, batch operations
  • Links - Contact-Company relationships
  • Network Actions - Activity notes on contacts and companies
  • Files - Document attachments (up to 25MB)

Authentication:

  • OAuth 2.0 with Client Credentials flow for production integrations
  • Personal Access Tokens for testing and scripts
  • Bot Users for dedicated integration accounts

Sync Features:

  • Delta sync with updated_since and include_deleted
  • Cursor-based pagination (up to 500 per page)
  • ETag-based concurrency for safe updates
  • External references for CRM ID tracking

Rate Limits:

  • OAuth Clients: 600 requests/minute
  • Personal Access Tokens: 60 requests/minute

Documentation:

  • Comprehensive guides at docs.propstreet.com
  • Interactive API explorer
  • Code samples for TypeScript, C#, Python

Roadmap

Webhooks (planned)

Push notifications for real-time updates:

  • Contact/Company created, updated, deleted
  • Note added
  • Relationship changes

Stay tuned for webhook documentation.


Deprecation Policy

We follow a deprecation policy to ensure stability:

  1. Deprecation notice - Announced in changelog and API responses
  2. Migration period - Minimum 6 months before removal
  3. Removal - After migration period ends

We'll always provide migration guidance and support.


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