Use your GHL API credentials to authenticate requests. Obtain an access token via OAuth or an API key, and include it in the Authorization header of each call.
Kommo uses secure OAuth credentials to authorize actions against the Contacts API. Ensure your app is granted the necessary scopes such as contacts.readonly.
GET /contacts/:contactId; GET /contacts/:contactId/tasks; GET /contacts/:contactId/tasks/:taskId; GET /contacts/:contactId/notes; GET /contacts/:contactId/notes/:id; GET /contacts/:contactId/appointments; GET /contacts/; GET /contacts/business/:businessId; POST /contacts/; PUT /contacts/:contactId; DELETE /contacts/:contactId; POST /contacts/:contactId/tasks; PUT /contacts/:contactId/tasks/:taskId; PUT /contacts/:contactId/tasks/:taskId/completed; DELETE /contacts/:contactId/tasks/:taskId; POST /contacts/:contactId/tags
Trigger: a new or updated contact is saved in Kommo
Actions: POST /contacts/ to create, PUT /contacts/:contactId to update in the Contacts API
Endpoint path: POST /contacts/ and PUT /contacts/:contactId
Key fields: name, email, phone, company
Trigger: a task is created in Kommo for a contact
Actions: POST /contacts/:contactId/tasks to create task; PUT /contacts/:contactId/tasks/:taskId to update; DELETE /contacts/:contactId/tasks/:taskId to remove
Endpoint usage: POST /contacts/:contactId/tasks
Key fields: contactId, task title, due date, status
Trigger: a note is added or updated for a contact
Actions: POST /contacts/:contactId/notes to create note; POST /contacts/:contactId/tags to apply tag
Endpoint usage: POST /contacts/:contactId/notes; POST /contacts/:contactId/tags
Key fields: contactId, note content, tag names
Automate data sync without writing code, saving time and reducing manual updates
Keep contact records consistent across platforms with real-time updates
Create scalable workflows that trigger actions in Kommo and your GHL endpoints
Understand the core building blocks and processes used when integrating Kommo with the Contacts API, including endpoints, authentication, rate limits, and webhooks.
A specific URL path and HTTP method used to access a resource in an API.
A standard authorization framework that lets apps obtain access tokens to call APIs securely.
A cap on how many requests you can send to an API in a given time window.
A URL you provide where the API can send asynchronous updates, like changes to a contact.
Automatically group contacts by behavior and apply appropriate tags in Kommo when new data lands in the Contacts API.
Sync notes and tasks in real time to keep both systems aligned.
Create reusable Zap-like templates to onboard new leads from Kommo into the Contacts API and back.
Register your Kommo app, obtain credentials, and authorize access to the Contacts API.
Select endpoints like /contacts and related resources and map key fields (name, email, etc.).
Run tests, deploy your integration, and set up alerts for failures.
No coding is required for basic sync with Kommo and the Contacts API. You can leverage prebuilt templates and Zaps. For complex workflows, you may introduce lightweight scripting if needed.
Use OAuth 2.0 or API keys depending on your setup. The recommended approach is OAuth 2.0 for user-scoped access. Protect tokens and rotate credentials regularly.
For basic sync, map core fields like name, email, phone, and company. Start with GET /contacts/:contactId and GET /contacts/:contactId/tasks to validate data flow.
Respect rate limits by batching requests, using conditional requests, and implementing exponential backoff. The Contacts API has documented quotas.
Yes. Webhooks can notify Kommo of updates in real time. Configure a webhook endpoint in Kommo and subscribe to contact-related events.
Test in a sandbox or staging environment. Use test data and mock responses to verify authentication, mapping, and error handling before deployment.
Look for example payloads in the API docs or the sample responses in this guide. Start with simple create/update payloads and expand.
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Complete Operations Catalog - 126 Actions & Triggers
