> ## Documentation Index > Fetch the complete documentation index at: https://nango-wari-migrated-bigcommerce-docs.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # HighLevel > Integrate your application with the HighLevel API ## 🚀 Quickstart Connect to HighLevel with Nango and see data flow in 2 minutes. In Nango ([free signup](https://app.nango.dev)), go to [Integrations](https://app.nango.dev/dev/integrations) -> *Configure New Integration* -> *HighLevel*. Go to [Connections](https://app.nango.dev/dev/connections) -> *Add Test Connection* -> *Authorize*, then log in to HighLevel. Later, you'll let your users do the same directly from your app. Let's make your first request to the HighLevel API (fetch a list of contacts). Replace the placeholders below with your [secret key](https://app.nango.dev/dev/environment-settings), [integration ID](https://app.nango.dev/dev/integrations), and [connection ID](https://app.nango.dev/dev/connections): ```bash theme={null} curl -X POST "https://api.nango.dev/proxy/contacts/search" \ -H "Authorization: Bearer " \ -H "Provider-Config-Key: " \ -H "Connection-Id: " \ -H "nango-proxy-version: 2021-07-28" \ -H "Content-Type: application/json" ``` Install Nango's backend SDK with `npm i @nangohq/node`. Then run: ```typescript theme={null} import { Nango } from '@nangohq/node'; const nango = new Nango({ secretKey: '' }); const res = await nango.post({ endpoint: '/contacts/search', providerConfigKey: '', connectionId: '', headers: { Version: '2021-07-28' } }); console.log(res.data); ``` Or fetch credentials dynamically via the [Node SDK](/reference/sdks/node#get-a-connection-with-credentials) or [API](/reference/api/connection/get). ✅ You're connected! Check the [Logs](https://app.nango.dev/dev/logs) tab in Nango to inspect requests. Follow our [Auth implementation guide](/guides/primitives/auth) to integrate Nango in your app. To obtain your own production credentials, follow the setup guide linked below. ## 📚 HighLevel Integration Guides Nango-maintained guides for common use cases. * [How to register your own HighLevel OAuth app](/api-integrations/highlevel/how-to-register-your-own-highlevel-api-oauth-app)\ Register an OAuth app with HighLevel to obtain your client credentials Official docs: [HighLevel API documentation](https://marketplace.gohighlevel.com/docs/) ## 🧩 Pre-built syncs & actions for HighLevel Enable them in your dashboard. Extend and customize to fit your needs. ### Others | Function name | Description | Type | Source code | | ------------------------------ | ----------------------------------------------------------------------------------------------------------- | ---------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | | `add-contact-to-workflow` | Enroll a contact in a HighLevel workflow. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/add-contact-to-workflow.ts) | | `add-tags-to-contact` | Add one or more tags to a contact. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/add-tags-to-contact.ts) | | `check-duplicate-contact` | Look up an existing contact by email or phone to avoid creating duplicates. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/check-duplicate-contact.ts) | | `create-appointment` | Create an appointment on a calendar in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-appointment.ts) | | `create-calendar` | Create a calendar in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-calendar.ts) | | `create-contact-note` | Add a note to a contact | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-contact-note.ts) | | `create-contact-task` | Create a follow-up task on a contact. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-contact-task.ts) | | `create-contact` | Create a contact in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-contact.ts) | | `create-custom-field` | Create a custom field in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-custom-field.ts) | | `create-custom-value` | Create a location-level custom value (a named merge variable, distinct from a per-contact custom field). | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-custom-value.ts) | | `create-opportunity` | Create an opportunity in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/create-opportunity.ts) | | `delete-appointment` | Delete an appointment in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-appointment.ts) | | `delete-calendar` | Delete a calendar in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-calendar.ts) | | `delete-contact-task` | Delete a follow-up task from a contact. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-contact-task.ts) | | `delete-contact` | Delete a contact in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-contact.ts) | | `delete-conversation` | Delete a conversation in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-conversation.ts) | | `delete-custom-field` | Delete a custom field in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-custom-field.ts) | | `delete-custom-value` | Delete a custom value in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-custom-value.ts) | | `delete-opportunity` | Delete an opportunity in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/delete-opportunity.ts) | | `get-appointment` | Retrieve a single appointment from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-appointment.ts) | | `get-calendar` | Retrieve a single calendar from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-calendar.ts) | | `get-contact` | Retrieve a single contact from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-contact.ts) | | `get-conversation` | Retrieve a single conversation from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-conversation.ts) | | `get-custom-field` | Retrieve a single custom field from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-custom-field.ts) | | `get-custom-value` | Retrieve a single custom value from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-custom-value.ts) | | `get-location` | Retrieve details about the connected HighLevel location (sub-account). | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-location.ts) | | `get-message` | Retrieve a single message by id. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-message.ts) | | `get-opportunity` | Retrieve a single opportunity from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-opportunity.ts) | | `get-user` | Retrieve a single user from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/get-user.ts) | | `list-appointments` | List appointments from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-appointments.ts) | | `list-calendars` | List calendars from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-calendars.ts) | | `list-contact-notes` | List notes on a contact. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-contact-notes.ts) | | `list-contact-tasks` | List follow-up tasks on a contact | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-contact-tasks.ts) | | `list-contacts` | List contacts from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-contacts.ts) | | `list-conversation-messages` | List messages within a conversation. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-conversation-messages.ts) | | `list-conversations` | List conversations from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-conversations.ts) | | `list-custom-fields` | List custom fields from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-custom-fields.ts) | | `list-custom-values` | List location-level custom values from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-custom-values.ts) | | `list-opportunities` | List opportunities from HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-opportunities.ts) | | `list-pipelines` | List opportunity pipelines and their stages for a location. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-pipelines.ts) | | `list-users` | List users assigned to a location in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-users.ts) | | `list-workflows` | List workflow definitions (id, name, status) for a location. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/list-workflows.ts) | | `remove-contact-from-workflow` | Remove a contact from a HighLevel workflow | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/remove-contact-from-workflow.ts) | | `remove-tags-from-contact` | Remove one or more tags from a contact. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/remove-tags-from-contact.ts) | | `send-conversation-message` | Send an SMS, email, or other message through a HighLevel conversation. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/send-conversation-message.ts) | | `update-appointment` | Update an appointment in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-appointment.ts) | | `update-calendar` | Update a calendar in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-calendar.ts) | | `update-contact-task` | Update a follow-up task on a contact, e.g. mark it complete. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-contact-task.ts) | | `update-contact` | Update a contact in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-contact.ts) | | `update-conversation` | Update a conversation in HighLevel (e.g. mark read/unread). | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-conversation.ts) | | `update-custom-field` | Update a custom field in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-custom-field.ts) | | `update-custom-value` | Update a custom value in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-custom-value.ts) | | `update-opportunity` | Update an opportunity in HighLevel. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/update-opportunity.ts) | | `upsert-contact` | Create a contact in HighLevel, or update it in place if a contact with the same email/phone already exists. | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/actions/upsert-contact.ts) | | `appointments` | Sync appointments (calendar events) from HighLevel | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/appointments.ts) | | `calendars` | Sync calendars from HighLevel. | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/calendars.ts) | | `contacts` | Sync contacts from HighLevel | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/contacts.ts) | | `conversations` | Sync conversations from HighLevel | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/conversations.ts) | | `custom-fields` | Sync custom fields from HighLevel | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/custom-fields.ts) | | `opportunities` | Sync opportunities from HighLevel. | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/opportunities.ts) | | `users` | Sync users assigned to this location from HighLevel. | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/users.ts) | | `workflows` | Sync workflow definitions (id, name, status) from HighLevel. | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/highlevel/syncs/workflows.ts) | ***