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HighLevel Voice AI Custom Actions
Lets HighLevel Voice AI agents call external APIs mid-call through POST webhooks.
AI Voice Agents · integration doc · Setup: Advanced (our estimate) · Last verified 2026-10-14
Our take
Custom Actions let a HighLevel Voice AI agent send POST webhook requests with headers, authentication, and caller-collected parameters during a live call. That turns a voice agent from a scripted answerer into something that can look up an order or push data elsewhere. You need a working endpoint, so in our view this is a builder feature.
Opinion based on the vendor's published documentation. We have not tested this product hands-on. How we review.
Key features
- Real-time POST webhooks during live calls
- Custom headers and authentication
- Dynamic parameters collected from the caller
- Look up or submit information without putting callers on hold
From the vendor's page: help.gohighlevel.com
Pros (our view)
- Connects voice agents to any API
- Native to HighLevel Voice AI
Cons (our view)
- Requires an API endpoint to call
- POST requests only, per the article
Alternatives to HighLevel Voice AI Custom Actions
- LeadConnector MCP Server
Official MCP server that lets AI assistants read and act on HighLevel CRM data.
- Vapi
A developer-first voice agent platform with usage pricing and paid support tiers.
- Retell AI
A pay-as-you-go voice agent platform with a drag-and-drop builder and testing tools.
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