upsert_contact

Create or update contact based on email/phone (smart merge)

SERVERGoHighLevel MCP Server SOURCEbusybee3333/go-high-level-mcp-2026-complete

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/busybee3333-go-high-level-mcp-2026-complete/upsert-contact.md

WHAT IT DOES

What upsert_contact does on GoHighLevel MCP Server

AI agents use upsert_contact 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.

RISK

Why upsert_contact is rated Medium

This tool creates or modifies contact records in a CRM system, which is a reversible Write operation rather than Destructive. While it operates on potentially sensitive customer data, the action itself is not irreversible. The 'smart merge' capability could affect data integrity if duplicate detection fails, but the operation remains categorically a Write action.

From the tool's definition Tool performs 'Create or update contact' which modifies data reversibly. The 'upsert' operation (insert or update) is a standard Write operation that can be undone by subsequent edits or deletes.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs upsert_contact safely

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

upsert_contact Rate-limited

upsert_contact 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": {
    "upsert_contact": {
      "limits": [
        {
          "counter": "upsert_contact_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 GoHighLevel MCP Server, apply this rule, and every upsert_contact call is checked against it from then on.

FAQ

Questions about upsert_contact

What does the upsert_contact tool do? +

Create or update contact based on email/phone (smart merge). 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.

How do I enforce a policy on upsert_contact? +

Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for upsert_contact: 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.

What risk level is upsert_contact? +

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

Can I rate-limit upsert_contact? +

Yes. Add a rate_limit block to the upsert_contact 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 upsert_contact completely? +

Set action: deny in the PolicyLayer policy for upsert_contact. 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 upsert_contact? +

upsert_contact 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.

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