Connect Codex, Claude Code, Cursor, or any MCP/HTTP-capable agent to one system for domains, mailboxes, warmup, campaigns, and replies. Your agent owns strategy and copy; Coldrig runs the durable machinery. Or do it all yourself on the website.
Launch founder outreach for Northstar. Keep it personal and protect the brand.
I’ll set up your own infrastructure, warm each mailbox, then launch only when the rig is healthy.
setup_infrastructure
8 mailboxes
infrastructure_status
day 12 of 14
launch_campaign
waiting for health
The agent stays the brain.
Coldrig handles the machinery.
You stay in control.
Most outreach stacks make your agent juggle registrars, mailbox vendors, sequencers, warmup tools, and inboxes. Coldrig collapses the machinery into a few high-level intents.
Your agent asks for outcomes, not vendor plumbing. Thirty-four carefully scoped tools keep context small and execution legible.
Explore the tool surface →Dedicated domains and mailboxes keep reputation contained, and each customer's account, leads and campaigns are kept separate. One exception: crowdfunding accounts use the shared bounce list of hashed addresses that hard-bounced or complained.
Send caps, suppression, unsubscribe handling, and health-based pausing are enforced below the agent layer.
Your agent operates the system, or do it all yourself on the website. You get a calm dashboard for health, activity, campaigns, and conversations.
Coldrig is built around the way agent-led work actually happens: the human sets the outcome, the agent plans and operates, and the product makes every action visible.
ColdrigPaused Atlas / inbox 04bounce rate crossed 3%
Launched Founder signal420 leads · 3 steps
Needs your review8 positive replies
Product illustration · simulated account data
Start in free test mode, which simulates mailbox setup, warmup, replies, bounces, timeouts, and rate limits — a safe way to try the whole workflow before you commit. Your API key stays the same when you go live. Real sending is live in production; signup, billing, screening, and real mailbox setup are fully self-serve and automatic, and mailbox send-authorization completes on our side.
$ npx agent-cold-email demo
Creating a practice account…
✓ infrastructure ready
✓ replies + failures simulated
↳ no real spend · no real sends
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Plain-English status: the API, MCP endpoint, npm CLI, test mode, and real sending are all live. Signup, billing, screening, and real mailbox setup are fully self-serve and automatic; mailbox send-authorization completes on our side. Coldrig never guarantees inbox placement. Read the FAQ →
Your assistant buys and sets up the domains and Google mailboxes, then sends, follows up, handles replies and unsubscribes, through one API key and 34 curated tools. One price covers the mailboxes, their domains, warmup and sending.
| Coldrig your assistant buys and sets up the mailboxes; one price |
Saleshandy¹ plan, plus mailboxes and domains billed on top |
EmailPal² plan, plus mailboxes and domains; its own mail servers, not Google mailboxes |
|
|---|---|---|---|
| 3 mailboxes | $49 | $54 | $74 |
| 5 mailboxes | $59 | $63 | $77 |
| 10 mailboxes | $84 | $144 | $84 |
| 20 mailboxes | $134 | $187 | $100 |
| 60 mailboxes | $334 | $362 | $231 |
Prices checked October 17, 2026.
Coldrig: $49 a month covers your first 3 mailboxes, and each extra mailbox is $5 a month. Coldrig has no plan tiers and no monthly email quota.
¹ Saleshandy. ² EmailPal. Monthly billing, the same sending volume at every size, vendor prices checked October 17, 2026. Plans, sources and what was left out are on the comparison page. No deliverability, open-rate, or reply-rate comparison is made anywhere on this page. Coldrig never guarantees inbox placement.
Try free test mode now, or go live: call POST /checkout for a hosted Stripe payment link and pay (checkout takes minutes) — signup, billing, screening, and real mailbox setup are fully self-serve and automatic, with mailbox send-authorization completing on our side. Want product updates instead of going live right now? Drop your email below.
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