Mateo will request the scopes required to read contact data from GHL (scope: contacts.readonly).
Grant Mateo permission to read and retrieve contact data. You can revoke access anytime from your GHL connected apps.
GET /contacts/:contactId — retrieve a single contact; GET /contacts/:contactId/tasks — list tasks for a contact; GET /contacts/:contactId/tasks/:taskId — get a specific task; GET /contacts/:contactId/notes — list notes; GET /contacts/:contactId/notes/:id — get a note; GET /contacts/:contactId/appointments — list appointments; GET /contacts/ — list contacts; GET /contacts/business/:businessId — list contacts by business; POST /contacts/ — create a contact; PUT /contacts/:contactId — update; DELETE /contacts/:contactId — delete; POST /contacts/:contactId/tasks — create a task; PUT /contacts/:contactId/tasks/:taskId — update task; PUT /contacts/:contactId/tasks/:taskId/completed — mark complete; DELETE /contacts/:contactId/tasks/:taskId — delete task; POST /contacts/:contactId/tags — add tags.
Trigger: a contact is updated in GHL and Mateo fetches the latest details.
Actions: update Mateo CRM records, refresh tags, refresh notes.
GET /contacts/:contactId
Key fields: contactId, name, email, phone
Trigger: contact changes create a task in Mateo
Actions: create and assign tasks in Mateo based on GHL activity
POST /contacts/:contactId/tasks
Key fields: contactId, taskId, title, dueDate
Trigger: new or updated notes for a contact
Actions: attach notes to Mateo contacts and trigger follow-ups or tasks
GET /contacts/:contactId/notes
Key fields: contactId, noteId, content
Automate repetitive data entry and keep contact records in sync without writing code.
Create proactive follow-ups and tasks from contact activity in GHL.
Scale onboarding and enable teammates to leverage ready-made workflows in Mateo.
Below you’ll find definitions for API, endpoint, OAuth, scope, and more to help you understand how Mateo connects to the GHL Contacts API.
API stands for Application Programming Interface. It defines how software components interact.
OAuth is an open standard for access delegation that lets Mateo access GHL data securely without sharing credentials.
An API endpoint is a specific URL and operation for a defined function, such as retrieving a contact.
Scope describes the level of access granted to Mateo (e.g., contacts.readonly).
Automatically enrich contact records in Mateo when new data becomes available from GHL.
Trigger follow-ups in Mateo based on contact activity in GHL.
Periodically sync contacts to Mateo for marketing campaigns.
Authorize Mateo to access the Contacts API with the required scope (contacts.readonly).
Select and test endpoints such as GET /contacts/:contactId and GET /contacts/:contactId/tasks.
Run tests in a sandbox and deploy to production once stable.
Connecting Mateo to the GHL Contacts API requires granting Mateo read-only access to your contact data. This ensures Mateo can fetch information without altering anything in your GHL account. Start with the minimal scope and expand only if necessary. You control who can grant and revoke access at any time from your GHL connected apps.
Mateo requests the contacts.readonly scope to read contact information, tasks, notes, and related data. No passwords are shared, and you can revoke access from your GHL settings at any time. If you need broader access in the future, you can adjust scopes accordingly.
The most commonly used endpoints are GET /contacts/:contactId to retrieve a contact and GET /contacts/:contactId/tasks to list related tasks. For workflow automation, POST /contacts/:contactId/tasks is used to create tasks, and GET /contacts/:contactId/notes provides notes associated with a contact.
Access can be revoked anytime from your GHL connected apps. After revoking, Mateo will no longer receive data from the Contacts API. It’s a good practice to review connected apps periodically to ensure only trusted integrations remain active.
You can view API call logs and system activity in the GHL developer console and Mateo’s integration logs. These provide details on requests, responses, and any errors for troubleshooting.
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