Use OAuth 2.0 or API keys as supported by the GHL API to securely call endpoints like GET /contacts/:contactId. Store tokens securely and refresh when required.
Securely manage credentials in your app, exchange tokens with GHL, and rotate secrets to keep data safe.
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 by business; POST /contacts/ — Create a contact; PUT /contacts/:contactId — Update a contact; DELETE /contacts/:contactId — Delete a contact; POST /contacts/:contactId/tasks — Create a task; 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 — Tag a contact
Trigger: a contact record is accessed or updated in EspoCRM
Actions: call GET /contacts/:contactId, cache response, update app UI
GET /contacts/:contactId
id, name, email, phone
Trigger: a contact task is created or updated
Actions: fetch /contacts/:contactId/tasks and /contacts/:contactId/tasks/:taskId, push to app
GET /contacts/:contactId/tasks
id, contactId, taskId, status, dueDate
Trigger: notes or appointments added or updated
Actions: fetch /contacts/:contactId/notes and /contacts/:contactId/appointments, sync to app
GET /contacts/:contactId/notes
noteId, content, date, appointmentId
Faster onboarding for teams through pre built endpoints
Reduced maintenance with a stable API surface and clear data mappings
Real time data sync enabling proactive decisions without coding from scratch
This glossary covers core concepts and processes youll encounter when integrating the GHL Contacts API with your app
A specific URL path that performs an action, such as retrieving a contact or updating a task
The method by which clients prove identity to GHL when calling endpoints (OAuth 2.0 or API keys)
A record in EspoCRM representing an individual person or company in your system
A callback URL that GHL can notify when a specified event occurs
Enhance contact records by pulling in missing fields from external sources via the API and syncing back to your app
Automatically create and update tasks in EspoCRM when users perform actions in your app
Aggregate notes and appointments into your app like an activity feed for complete context
Create OAuth client or API key credentials from the GHL developer settings and store securely.
Enable and test endpoints like GET /contacts/:contactId and GET /contacts/:contactId/tasks in a sandbox.
Integrate data mappings in your app and set up monitoring and alerts for sync health.
Some coding is required to connect and map data between EspoCRM and your app. Even basic scripting to handle API requests and responses will help you tailor fields and triggers. If you prefer no code, consider automation platforms to prototype quickly before building a full integration.
Yes, you can choose which fields to sync and map them to your app data model. Use field level filters and transformation rules to ensure only needed data moves between systems.
Rate limits depend on your GHL plan; exceeding them may slow requests. Plan for batching and backoff strategies to stay within limits and maintain reliability.
Yes. Webhooks can notify your app of changes in real time. Configure endpoints to receive events like contact updates, task changes, or notes additions.
OAuth 2.0 is generally recommended for user specific access, with API keys for server to server scenarios. Follow best practices to protect credentials and rotate keys regularly.
Test endpoints in a sandbox or staging environment before going live. Use mock data, simulate failures, and verify data mappings and error handling.
API endpoint docs are available in the GHL developer portal under API reference. You can also consult in app docs or your integration partner resources for endpoint details.
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Complete Operations Catalog - 126 Actions & Triggers
