send_sms

Send an SMS message to a contact in GoHighLevel

SERVERGhl SOURCEghl-mcp-server

Medium RISK CLASS

Category Write

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/ghl/send-sms.md

WHAT IT DOES

What send_sms does on Ghl

AI agents use send_sms to create or update resources in Ghl, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ghl environment.

Parameter	Type	Required	Description
`message`	string	Yes	The SMS message content to send
`contactId`	string	Yes	The unique ID of the contact to send SMS to
`fromNumber`	string	—	Optional: Phone number to send from (must be configured in GHL)

Parameters from the server's own tool schema.

RISK

Why send_sms is rated Medium

Sending an SMS is a Write operation: it creates a new message record and triggers an outbound communication. While the message delivery itself is irreversible at the recipient end, the classification is Write rather than Destructive because the tool does not delete or overwrite data in the system.

From the tool's definition Tool description states 'Send an SMS message to a contact' — this creates/modifies communication records by dispatching a message.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs send_sms safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ghl, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For send_sms, this is the rule to start with:

send_sms Rate-limited

send_sms 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "send_sms": {
      "limits": [
        {
          "counter": "send_sms_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ghl, apply this rule, and every send_sms call is checked against it from then on.

FAQ

Questions about send_sms

What does the send_sms tool do? +

Send an SMS message to a contact in GoHighLevel. It is categorised as a Write tool in the Ghl MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does send_sms accept? +

send_sms accepts 3 parameters: message, contactId, fromNumber. Required: message, contactId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on send_sms? +

Register the Ghl MCP server in PolicyLayer and add a rule for send_sms: 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 Ghl. Nothing to install.

What risk level is send_sms? +

send_sms is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit send_sms? +

Yes. Add a rate_limit block to the send_sms 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.

How do I block send_sms completely? +

Set action: deny in the PolicyLayer policy for send_sms. 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.

What MCP server provides send_sms? +

send_sms is provided by the Ghl MCP server (ghl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Ghl, and thousands of servers like it.

This server

All 253 Ghl tools →

Across the catalogue

sms_send on Twilio SMS MCP Server →send-draft on Meme MCP Server →mail_send_draft on Apple Apps MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →