Create a new BYOC (Bring Your Own Carrier) SIP trunk for a location. Allows using an external carrier instead of the built-in provider.
AI agents use ghl_create_byoc_trunk to create or update resources in GoHighLevel MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GoHighLevel MCP Server environment.
This tool creates a new SIP trunk configuration, which modifies system state by adding a new communication carrier integration. This is a Write operation because it creates/adds new data reversibly. Severity is medium because misconfiguration could disrupt communications for a location, but the action itself is not destructive or financial—the trunk configuration can be modified or removed.
From the tool's definition Tool name contains 'create' and description states 'Create a new BYOC (Bring Your Own Carrier) SIP trunk for a location.' This is a create operation that adds new configuration to the system.
Documented attack patterns abuse exactly the kind of access ghl_create_byoc_trunk gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GoHighLevel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ghl_create_byoc_trunk:
{
"version": "1",
"default": "deny",
"tools": {
"ghl_create_byoc_trunk": {
"limits": [
{
"counter": "ghl_create_byoc_trunk_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}ghl_create_byoc_trunk stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Create a new BYOC (Bring Your Own Carrier) SIP trunk for a location. Allows using an external carrier instead of the built-in provider. It is categorised as a Write tool in the GoHighLevel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for ghl_create_byoc_trunk: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches GoHighLevel MCP Server. Nothing to install.
ghl_create_byoc_trunk is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the ghl_create_byoc_trunk rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for ghl_create_byoc_trunk. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
ghl_create_byoc_trunk is provided by the GoHighLevel MCP Server MCP server (busybee3333/go-high-level-mcp-2026-complete). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 566 GoHighLevel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
566 GoHighLevel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.