Access to the Contacts API requires a valid API key or OAuth token with the contacts.readonly scope. Store credentials securely and rotate keys periodically.
Rankr authenticates to the GHL API using OAuth 2.0 or API keys and must be granted the appropriate scopes to access contacts data.
GET /contacts/:contactId – Retrieve a single contact GET /contacts/:contactId/tasks – List tasks for a contact GET /contacts/:contactId/tasks/:taskId – Retrieve a specific task GET /contacts/:contactId/notes – List notes for a contact GET /contacts/:contactId/notes/:id – Retrieve a specific note GET /contacts/:contactId/appointments – List appointments for a contact GET /contacts/ – List all contacts GET /contacts/business/:businessId – Retrieve contacts for a specific business POST /contacts/ – Create a new contact PUT /contacts/:contactId – Update a contact DELETE /contacts/:contactId – Delete a contact POST /contacts/:contactId/tasks – Create a task for a contact PUT /contacts/:contactId/tasks/:taskId – Update a task PUT /contacts/:contactId/tasks/:taskId/completed – Mark a task as completed DELETE /contacts/:contactId/tasks/:taskId – Delete a task POST /contacts/:contactId/tags – Add a tag to a contact
When you need a complete view of a contact and all its tasks.
Use GET /contacts/:contactId to pull the contact, then GET /contacts/:contactId/tasks to retrieve related tasks.
GET /contacts/:contactId
contactId, tasks
When notes are needed for context
GET /contacts/:contactId/notes and GET /contacts/:contactId/notes/:id
GET /contacts/:contactId/notes
contactId, notes, noteId
When syncing upcoming appointments matters
GET /contacts/:contactId/appointments and GET /contacts/business/:businessId
GET /contacts/:contactId/appointments
contactId, appointments, businessId
Low-friction setup with prebuilt endpoints reduces development time.
Live data access enhances field service workflows without custom coding.
Centralized changes propagate across Rankr instantly.
A quick glossary of terms used in this integration guide to help you map concepts to actions.
An API (Application Programming Interface) enables software to communicate and share data.
OAuth 2.0 is a standard for granting limited access tokens to third-party apps.
A URL that exposes a specific API function, such as retrieving a contact or a task.
A permission boundary that defines what data an app can access and what actions it can perform.
Pull external data to enrich contact records in Rankr to improve segmentation and outreach.
Trigger Rankr workflows when tasks are created or updated in GHL to keep teams aligned.
Sync appointments to Rankr calendars to optimize field service routing.
Create a GHL API key with the desired scope and configure your app in the developer console.
Select the endpoints you need (contacts, tasks, notes, appointments) and map fields to Rankr data models.
Run end-to-end tests, verify data integrity, and deploy to production with monitoring.
You can read contact details, tasks, notes, and appointments associated with a contact using the Contacts API. The read-only scope keeps your integration safe while enabling rich data for field service workflows. If you need more, upgrade scopes or contact data may require additional permissions from GHL depending on your account configuration.
To read data, your app must be granted the contacts.readonly scope or equivalent permission. Always protect your credentials and rotate keys regularly. Use OAuth 2.0 flows where possible for user-specific permissions. For write access, request higher scopes and implement audit trails.
Rankr can connect to the GHL Contacts API via a dedicated integration app. The app can be configured once with the right scopes and endpoints, and deployed across environments. If you need to access additional endpoints, you may need to update the app’s permissions in GHL.
Yes. Webhooks in GHL can notify Rankr of changes to contacts, tasks, or notes, enabling near real-time sync. Ensure your webhook endpoint is secured and validates incoming payload signatures. Configure retries and backoff strategies to handle transient failures.
GHL enforces rate limits. Implement exponential backoff, handle 429 responses gracefully, and cache responses where feasible. Use batch requests where supported to reduce calls. Monitor quotas in the dashboard and alert on threshold crossings.
Yes, you can update certain fields on a contact or related tasks through the API, depending on granted scopes. Use the appropriate PUT or POST endpoints and audit the changes in Rankr.
Consult the developer docs for endpoint references, parameter details, and example requests. If you hit limits or permissions issues, contact your API administrator to adjust scopes.
Due to high volume, we will be upgrading our server soon!
Complete Operations Catalog - 126 Actions & Triggers
