One link. Your agent takes it from here.
Paste these instructions into Claude, Codex, Cursor or another MCP client. Your agent reads the setup guide, helps you sign in, checks the connection and shows what to do next.
OAuth sign-in where supported. Keep access tokens in your client’s secure settings, outside chat. Your campaign’s review mode still applies.
Claude
In Settings → Connectors, add a custom connector with the URL below. Sign in to ColdPegion and approve access. Availability depends on your client and plan.
https://coldpegion.com/api/mcp
Claude Code
Add the remote server, then open /mcp to complete browser sign-in.
claude mcp add --transport http coldpegion https://coldpegion.com/api/mcp
Codex
Add the server and start OAuth sign-in. Check /mcp after authentication.
codex mcp add coldpegion --url https://coldpegion.com/api/mcp codex mcp login coldpegion
Your first successful connection
- Ask your agent to read your overview and list connected email accounts.
- Have it show what is ready and what needs setup. A successful account read confirms the connection.
- Ask it to create a campaign draft, add your real audience and write emails for each person.
- Choose review in ColdPegion, review in your MCP client, or Auto for that campaign. Review and launch when ready.
Connection setup sends no campaign emails. Client-written emails use your AI client’s allowance; ColdPegion generation and third-party services have separate limits.
Using Cursor or another client? Add the remote HTTP URL in its MCP settings. If it needs an access token, create one in your account and put it in the client’s secure settings. Read about campaign approval.
Client instructions: Claude Code · Codex. Checked October 28, 2026.