MCP and for GoHighLevel

Support Help
1

Hello,

I mainly use GHL for the CRM and setup the MCP for GoHighLevel however I think there is some missing information from the help docs. There is no option to change the payload information so the MCP is not calling/functioning right now.

Any help would be appreciated.

2

Based on the available sources, I can see that Retell AI has MCP (Model Context Protocol) integration, but the documentation doesn’t provide detailed payload customization options for GoHighLevel specifically(1).

For MCP Node configuration in Retell AI, you can connect your own MCPs and invoke tools seamlessly(1). The MCP Node allows your voice agents to call any HTTP-based service, trigger workflows, fetch live data in real time, and dynamically adapt the conversation based on structured responses(1).

However, the sources indicate there have been issues with the GoHighLevel integration. According to community discussions, users have experienced problems where Retell sends structured JSON data, but GHL doesn’t parse it correctly, resulting in formatting issues(2). The fix typically involves extracting and formatting the exact fields you need inside the workflow before sending data to GHL(2).

For custom function setup in Retell AI, you can:

  1. Define parameters using JSON schema format(3)
  2. Set request headers (which can include dynamic variables)(3)
  3. Set query parameters(3)
  4. Configure the HTTP method (GET, POST, PATCH, PUT, DELETE)(3)

If you’re experiencing issues with the MCP not calling correctly, I recommend:

Check out these potentially useful sources:

For specific payload customization issues with GoHighLevel, you may want to contact support through:

Would you like a general answer based on my knowledge of how MCP integrations typically work?

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