Use your GHL API credentials to authorize requests to the Contacts API. Generate a private API key or use OAuth as required.
Use your Mailgun API key and domain permissions to authorize calls from the integration. Store keys securely and rotate regularly.
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; contacts.write; 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: GET /contacts/:contactId
Actions: retrieve contact, load tasks, summarize notes
/contacts/:contactId
Key fields: contactId, name, email
Trigger: GET /contacts/:contactId/tasks
Actions: list tasks, create task, update status, delete task
/contacts/:contactId/tasks
Key fields: taskId, status, dueDate
Trigger: GET /contacts/:contactId/notes
Actions: fetch notes, add notes, search by keyword
/contacts/:contactId/notes
Key fields: id, content, author
Automated data sync without writing automation code.
Kickoff faster with built in endpoints and triggers.
Scales with your operations and supports custom fields.
This glossary explains terms used throughout the Mailgun to Contacts API integration focusing on endpoints authentication triggers and contacts.
A specific URL in the GHL API used to perform an action such as retrieving a contact.
Proof of identity that authorizes API requests, commonly via API keys or OAuth.
An event that starts a workflow or data pull.
A person recorded in the Contacts database with associated data.
Automatically tag and route new Mailgun subscribers into the Contacts API for targeted campaigns.
Create tasks when important emails arrive and assign to teammates.
Consolidate notes from conversations into contact notes for context.
Create and copy your GHL API key and Mailgun API key securely.
Map the endpoints to the app and test connectivity.
Turn on automation, check logs and dashboards.
Coding skills are not required for most setups. The built in endpoints and simple mappings let you connect Mailgun with the Contacts API without writing code. You can test connections, map fields and automate basic workflows with a few clicks. For advanced needs, you can extend with webhooks and custom logic in a staging environment. In practice, start with read only access to verify data flow, then add write permissions as you gain confidence.
For basic syncing you typically need to fetch contacts and their basic fields. Use GET /contacts/:contactId to pull a single contact and GET /contacts/ to list contacts. You may also need POST /contacts/ to create new records and PUT /contacts/:contactId to update them. This gives you a solid foundation for sync without overwhelming your setup. As you scale, map notes and tasks endpoints to surface full context on each contact.
Yes. You can test endpoints in a staging or sandbox environment or with test data. Use mock requests and dummy records to verify responses and error handling without touching real customer data. When ready, switch to production with careful monitoring. Always back up data before making destructive requests like DELETE and ensure you have rollback plans.
Security relies on strong credentials and proper scope. Protect your API keys, rotate them regularly, and apply principle of least privilege. Use HTTPS for all requests and consider IP whitelisting or OAuth where available. Audit logs and error reporting help you spot unusual activity and keep data safe.
Yes. You can customize data fields by mapping Mailgun fields to the Contacts API. Use the key fields such as name, email, tags and custom fields and align them with the endpoint payloads. Updates can be performed via POST, PUT or PATCH depending on the endpoint. Plan which fields you need early to avoid cascading changes later.
Rate limits vary by plan and endpoint. Expect throttling under heavy load and implement exponential backoff in your client. If you approach limits, batch requests where possible and stagger calls across time windows. Contact support if you anticipate sustained high volume to discuss higher quotas or architectural alternatives.
Common failures include authentication errors, invalid resource IDs and missing required fields. Check that your API keys are valid, the contactId or taskId exists, and the endpoint path is correct. Review server error codes and response bodies for clues. Enable verbose logging during debugging and reproduce issues in a staging environment before going live.
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Complete Operations Catalog - 126 Actions & Triggers
