MCP servers · Smartlead · MCP server
Connect Codex CLI to Smartlead
One line gives Codex CLI your Smartlead account as tools: 12 endpoints, campaigns, leads, email accounts, called with your own connection. No key in the prompt, a receipt for every call, revoke Codex CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect Smartlead. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Codex CLI. OpenAI's terminal agent reads 0n3 over Streamable HTTP with a token from your environment.
- Ask Codex CLI: whoami. Then: "Create a campaign in Smartlead".
Put the token in your environment
export ON3_TOKEN="<your 0n token>"
Add it to your shell profile so Codex finds it next time.
The line above carries a placeholder; 0n3.app/install mints a real key named for Codex CLI and fills it in.
What Codex CLI can then do in Smartlead
Campaigns · Manage outreach campaigns9
Create a campaign
POST /campaigns/createList campaigns
GET /campaignsGet a campaign
GET /campaigns/{campaignId}Update a campaign
POST /campaigns/{campaignId}/settingsAdd leads
POST /campaigns/{campaignId}/leadsList leads
GET /campaigns/{campaignId}/leadsGet campaign stats
GET /campaigns/{campaignId}/analyticsCreate a sequence
POST /campaigns/{campaignId}/sequencesList sequences
GET /campaigns/{campaignId}/sequencesLeads · Add and manage leads1
Get a lead
GET /leads/{leadId}Email accounts · Manage sending email accounts2
Add an email account
POST /email-accounts/saveList email accounts
GET /email-accountsSequences · Create email sequences0
Create email sequences
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