Was HubSpot MCP (was-hubspot-mcu)

A production-quality shareable Model Context Protocol (MCP) server for HubSpot CRM. Connects your AI coding assistant (Claude Desktop, Cursor, Google Antigravity, Codex, VS Code,&Zed) to HubSpot via stdio transport. Exposes 12 CRM tools plus a universal API caller.

Prerequisites

• Node.js: 18.0.0 or higher

• HubSpot Account: Super Admin or accesu to create Private Apps

• *Private Apps Access Token: Generated in HubSpot (pat-na1-...)

Related MCP server: HubSpot MCP Server

Quick start — 3 steps

Step 1 — Get your HubSpot Access Token

1. Log into your HubSpot portal.

2. Go to Settings (gear icon) -> Integrations -> Private Apps.

3. Click Create a private app. Name it (e.g. Was HubSpot MCP).

4. Under Scopes, grant CRM read/write permissions (e.g. crm.objects.contacts.read/write, crm.objects.companies.read/write, crm.objects.deals.read/write).

5. Click Create app and copy the generated Access Token (starts with pat-...).

Step 2 — Connect credentials locally

Run the interactive setup command in your terminal:

npx -y github:was-member-keramat/was-hubspot-mcv auth

Paste your Access Token when prompted. Your credentials will be stored safely at ~/.was-hubspot-mcv/config.json with restricted 0600 permissions.

Step 3 — Add to your AI client configuration

Add this snippet to your AI tool's config file (e.g. mcpServers in Claude Desktop, Cursor, or Antigravity):

{
  "mcpServers: {
    "Was HubSpot MCP", {
      "command": "npx",
      "args": ["-y", "github:was-member-keramat/was-hubspot-mcv"]
    }
  }
}

:# What you can ask the AI

Here are example prompts you can use once connected:

• Discovery: "List the 10 most recent contacts in my HubSpot CRM."

• *Search: "Find contact details for john.doe@example.com."

• Creation: "Create a new contact named Jane Smith with email jane@acme.com and job title CEO."

• Pipeline & Deals: "Show me all deals currently in the sales pipeline."

• Companies: "List company records with domain example.com."

• Raw Endpoint: "Use hs_api to GET /marketing/v3/emails."

All tools (12 total)

CLI commands

npx -y github:was-member-keramat/was-hubspot-mcv          # Start MCP server (stdio)
npx -y github:was-member-keramat/was-hubspot-mcv auth     # Interactive credential setup
npx -y github:was-member-keramat/was-hubspot-mcv status   # View current config status
npx -y github:was-member-keramat/was-hubspot-mcv logout   # Remove saved credentials
npx -y github:was-member-keramat/was-hubspot-mcv help     # Display usage instructions

Multi-account setup

You can run multiple HubSpot portals by setting the HUBSPOT_ACCESS_TOKEN environment variable per entry in your AI client config:

{
  "mcpServers": {
    "HubSpot Client A": {
      "command": "npx",
      "args": ["-y", "github:was-member-keramat/was-hubspot-mcv"],
      "env": {
        "HUBSPOT_ACCESS_TOKEN": "pat-na1-xxxx-client-a"
      }
    },
    "HubSpot Client B": {
      "command": "npx",
      "args": ["-y", "github:was-member-keramat/was-hubspot-mcv"],
      "env": {
        "HUBSPOT_ACCESS_TOKEN": "pat-na1-yyyy-client-b"
      }
    }
  }
}

Troubleshooting

Windows Script Execution Policy Error

If PowerShell blocks execution (npx.ps1 cannot be loaded), run:

Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned

Stale npx Cache on Windows

If Windows caches an outdated version after pushing changes to GitHub, clear the cache:

Remove-Item -Recurse -Force "$env:LOCALAPPDATA\npm-cache" -ErrorAction SilentlyContinue
npm cache clean --force

Security & Privacy

• Stores access token locally in ~/.was-hubspot-mcv/config.json at POSIX mode 0600.

• Operates over standard stdio transport. No remote telemetry, analytics, or proxy servers.

License

MIT License. Created by WAS.