MCP servers · email marketing
ActiveCampaign MCP server
Email marketing + CRM — contacts, automations, deals, campaigns, tags. Hosted by 0n3: 10 endpoints your AI can call with your own ActiveCampaign account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.
10 endpoints5 categoriesauth: api_keyhosted
What your AI can do with ActiveCampaign
Contacts · Manage contacts4
Create a contact
POST /contactsList contacts
GET /contactsGet a contact
GET /contacts/{id}Update a contact
PUT /contacts/{id}Tags · Tag contacts2
Add a tag
POST /contactTagsList tags
GET /tagsAutomations · List automations1
List automations
GET /automationsDeals · Manage CRM deals2
Create a deal
POST /dealsList deals
GET /dealsMore · Everything else this app exposes.1
List lists
GET /listsInstall in three steps
- Create a free account at 0n3.app and connect ActiveCampaign: paste a key or sign in through a door. It lands in your vault, encrypted.
- Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
- Ask your AI: whoami. It answers with your connected services. Then ask it to create a contact in ActiveCampaign.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"
Connect ActiveCampaign to
Claude Code + ActiveCampaignMCP server + skillClaude (desktop & claude.ai) + ActiveCampaignconnectorChatGPT + ActiveCampaignconnector · GPT actionCodex CLI + ActiveCampaignMCP serverGemini CLI + ActiveCampaignMCP serverCursor + ActiveCampaignMCP serverVS Code (Copilot) + ActiveCampaignMCP serverWindsurf + ActiveCampaignMCP server
More email marketing MCP servers
Questions
What can an AI do with the ActiveCampaign MCP server?
10 things: contacts, tags, automations, deals and more. Every call runs with your own ActiveCampaign connection and lands on a receipt.
Do I need to run anything on my computer?
No. 0n3 is hosted. Connect ActiveCampaign once, install 0n3 into your AI with one line, done.
Where does my ActiveCampaign key go?
Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.