0n3
MCP servers · marketing

Smartlead MCP server

Cold email outreach — campaigns, leads, sequences, email accounts. Hosted by 0n3: 12 endpoints your AI can call with your own Smartlead account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.

Connect SmartleadInstall into your AIWatch it work

12 endpoints4 categoriesauth: api_keyhosted

What your AI can do with Smartlead

Campaigns · Manage outreach campaigns9
Create a campaignPOST /campaigns/create
List campaignsGET /campaigns
Get a campaignGET /campaigns/{campaignId}
Update a campaignPOST /campaigns/{campaignId}/settings
Add leadsPOST /campaigns/{campaignId}/leads
List leadsGET /campaigns/{campaignId}/leads
Get campaign statsGET /campaigns/{campaignId}/analytics
Create a sequencePOST /campaigns/{campaignId}/sequences
List sequencesGET /campaigns/{campaignId}/sequences
Leads · Add and manage leads1
Get a leadGET /leads/{leadId}
Email accounts · Manage sending email accounts2
Add an email accountPOST /email-accounts/save
List email accountsGET /email-accounts
Sequences · Create email sequences0
Create email sequences

Install in three steps

  1. Create a free account at 0n3.app and connect Smartlead: paste a key or sign in through a door. It lands in your vault, encrypted.
  2. Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
  3. Ask your AI: whoami. It answers with your connected services. Then ask it to create a campaign in Smartlead.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"

Connect Smartlead to

Claude Code + SmartleadMCP server + skillClaude (desktop & claude.ai) + SmartleadconnectorChatGPT + Smartleadconnector · GPT actionCodex CLI + SmartleadMCP serverGemini CLI + SmartleadMCP serverCursor + SmartleadMCP serverVS Code (Copilot) + SmartleadMCP serverWindsurf + SmartleadMCP server

More marketing MCP servers

Mailchimp12 endpointsGoogle Analytics Admin (GA4)11 endpointsGoogle Search Console8 endpoints0n Lead Magnet7 endpointsGoogle Analytics Data (GA4)4 endpointsGoogle Site Verification3 endpoints

Questions

What can an AI do with the Smartlead MCP server?

12 things: campaigns, leads, email accounts, sequences. Every call runs with your own Smartlead connection and lands on a receipt.

Do I need to run anything on my computer?

No. 0n3 is hosted. Connect Smartlead once, install 0n3 into your AI with one line, done.

Where does my Smartlead key go?

Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.