To access the Contacts API, securely authorize via OAuth 2.0 using your GHL developer credentials. The required scope is contacts.readonly for read access; for write operations you’ll request additional scopes as appropriate.
In Zapier, connect the GHL Contacts API app by using OAuth 2.0 and supplying the client ID and secret from your GHL app. Ensure the callback URL matches your Zapier app settings and request the same contacts.readonly scope initially.
Available endpoints include: 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, write capability: 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: New or Updated Contact
Actions: Read contact details, pull related tasks, notes, and appointments to drive downstream workflows.
Method/Path: GET /contacts/:contactId and related endpoints such as GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments.
Key fields: contactId, taskId, id, businessId.
Trigger: New contact created in the source app or form submission.
Actions: POST /contacts/ to create new contacts; PUT /contacts/:contactId to update; optionally attach tasks or notes.
Method/Path: POST /contacts/ and PUT /contacts/:contactId; follow with POST /contacts/:contactId/tasks as needed.
Key fields: contactId, businessId, id.
Trigger: New or updated notes or appointments for a contact.
Actions: POST/PUT notes and appointments; GET endpoints to read and verify data.
Method/Path: GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments; POST/PUT for notes and appointments as needed.
Key fields: contactId, id.
Automate repetitive contact workflows without writing a line of code.
Keep data in sync across platforms, reducing manual entry and errors.
Scale operations quickly with repeatable, shareable automations.
Key elements include endpoints, triggers, actions, fields, and data mappings that power your automations.
A person record in GHL that you can read, update, or attach tasks, notes, and appointments to.
A to-do item linked to a specific contact used to track activities.
A text entry attached to a contact for contextual information.
A scheduled meeting or call linked to a contact.
Whenever a new contact is added to GHL, automatically create a follow-up task in the connected app to kick off onboarding.
Submit form data from your website and append details to the contact notes in GHL to keep records fresh.
When a task is completed or overdue, trigger a reminder or subsequent task for the associated contact.
Register and obtain client credentials, set scopes to read-only for initial testing, then request additional scopes as needed.
Enter the client ID and secret in Zapier, authorize, and test the connection to ensure the contacts.readonly scope is functioning.
Create a Zap that uses Contacts data to trigger actions in other apps, then iterate on fields and mappings for accuracy.
Read endpoints include GET /contacts/:contactId to fetch a specific contact, GET /contacts/:contactId/tasks to retrieve tasks linked to that contact, GET /contacts/:contactId/notes for notes, and GET /contacts/:contactId/appointments for scheduled meetings. You can also GET /contacts/ to list contacts and GET /contacts/business/:businessId for business-wide queries. For writing data, POST /contacts/ creates a new contact and POST /contacts/:contactId/tasks creates tasks. Use these endpoints to assemble flows that read data and trigger actions in your connected apps. Pagination and filtering options are available to handle large datasets.
OAuth 2.0 is the recommended authentication method. You’ll configure a client in GHL, obtain a client ID and secret, and authorize the app via the standard OAuth flow to obtain access tokens. The initial scope for reading data is contacts.readonly; you can request broader scopes if your workflows require write access. Ensure your redirect URI matches what Zapier expects for secure token exchange.
Yes. You can write data to GHL using endpoints such as POST /contacts/ to create, POST /contacts/:contactId/tasks to add tasks, and POST /contacts/:contactId/tags to tag contacts. Writes should be tested in a sandbox or test workspace before production, and you should implement proper error handling to manage conflicts or validation errors from the API.
GHL enforces rate limits based on your app’s quota. When you approach or exceed limits, the API will respond with rate limit errors. Implement exponential backoff and retry logic in your Zapier automations, and consider requesting a higher limit if your use case requires heavier usage.
The primary integration target is Zapier via the Zapier App Connector. You can connect the GHL Contacts API app in Zapier to automate workflows with many third-party apps supported by Zapier. The Endpoints listed above are the building blocks for these automations.
Test your workflow by using Zapier’s built-in test actions and by calling endpoints in a staging environment. Verify data mappings, field formats, and triggers. Use sample payloads to ensure your expected triggers fire and that downstream apps receive the correct data payload.
Sample payloads and webhook examples are available in the GHL developer docs and within Zapier’s app documentation. Start with a simple read payload for a contact, then expand to include nested data like tasks and notes. Use these payloads to validate your mappings and triggers before moving to production.
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