OAuth 2.0 Authentication
Secure your integrations with the industry-standard OAuth 2.0 Client Credentials flow. Each API client acts as a service user of your installation, so it can do exactly what that user can do.
Modular & Extensible
Manage projects, clients, tasks, time, expenses, forms, notes and documents through one REST interface. Read and write each object's custom_properties, and lay out forms as your installation does.
PHP-First Code Samples
Every endpoint includes ready-to-use PHP code samples in both raw cURL and Guzzle HTTP, plus curl, Node.js and Python. Copy, paste, and integrate directly into your application in minutes.
