The steps in this article are for Advanced Integration and for informational purposes only. 

While our support team does not currently service or support either our API or ManyChat Integration due to their complexities, we have many tools and groups to help you get started and connected! For assistance with APIs only, you can join our Developer Council Slack Community here:

We also hold a Developer Council Zoom Call once a month (second to last Friday) which you can find on the Events calendar here:

For more information and links to our API documentation, visit our developer's website:

Please Note:

The API URL endpoints: 
- Create Contact:
- Add/Update Opportunity:

Data Fields

“email”: “”,
“phone”: “+18887324197”,
“firstName”: “John”,
“lastName”: “Deo”,
“tags”: [
“commodo sed aliquip”,
“ut exercitation sunt”


Q1) I'm seeing duplicate contacts coming in from Manychat ? How do I sync HighLevel with Manychat

To avoid Manychat duplicate contacts in HighLevel, please watch the video below

Using External Request to update contact instead of duplicating contact



Content-Type = application/json


"first_name": {{first_name|fallback:""|to_json:true}},
"last_name": {{last_name|fallback:""|to_json:true}},
"email": {{email|fallback:""|to_json:true}},
"phone": {{phone|fallback:""|to_json:true}}