The Zoho CRM API is a REST API that lets developers create, read, update, and delete CRM data programmatically, trigger automations, and build custom integrations with other systems, currently on its eighth major version (V8).
Authentication
The API uses OAuth 2.0 rather than passwords. This means a third-party application never sees or stores a user's actual Zoho login credentials, only gets delegated access to the specific resources the user has authorised, and access can be revoked by the user at any time. Access tokens are valid for 60 minutes and must be refreshed periodically using a longer-lived refresh token.
What the API can do
- Create, read, update, and delete records across standard and custom modules
- Query records using COQL, a SQL-style query language, for more complex retrieval than basic filters allow
- Run bulk operations through a dedicated Bulk API for high-volume, asynchronous imports and exports
- Set up event-driven integrations using the Notification API, so external systems are alerted the moment something changes in Zoho CRM
- Manage configuration itself, such as custom fields, layouts, and Map Dependency, not just record data
Official SDKs
Zoho maintains official server-side SDKs that wrap the REST API and handle OAuth token management for you, including PHP, Python, Java, Node.js, and Scala, so you don't need to build the raw HTTP requests and token refresh logic from scratch.
Note: API usage is governed by a credit-based rate limit system that varies by edition, from a limited free tier up to effectively unlimited daily credits on higher tiers. If you're planning heavy or continuous API usage, check current rate limits for your edition before building around it, since these limits and the credit model itself have changed over time.
Need help? 1 Cloud Consultants can help you plan and build integrations against the Zoho CRM API, including OAuth setup, COQL queries, and staying within your edition's rate limits.
Book a discovery call with 1 Cloud Consultants.