The Agent Cold Email MCP server,
connected in one click.
Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox. $99/mo. Connect the official Agent Cold Email MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
What your AI can do with Agent Cold Email
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “setup_infrastructure”: Provision sending infrastructure: buy branded lookalike domains, create mailboxes, start warmup. New mailboxes are ramp-limited server-side.”
“Use “infrastructure_status”: Warmup + provisioning progress per mailbox. New mailboxes are ramp-limited server-side: 5 sends/day week 1 rising to 40/day after 4 weeks; c.”
“Use “launch_campaign”: Create and activate a campaign on a lead list. You supply name, offer, leads[], sequence[] (per step: subject, body, delayDays), sendWindow,.”
“Use “campaign_results”: Outcome counts for ONE campaign. Input: campaignId (from launch_campaign). Returns { campaignId, sent, reply, bounce, complaint, unsubscribe.”
How secure is the Agent Cold Email MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Agent Cold Email holds up.
Security grade F
gate scanned 28 tools on Sep 3, 2026 and found high-severity issues. Read the report before you connect.
- highsetup_infrastructure: Provisions 'branded lookalike domains' for cold-email sending
- mediuminfrastructure_status: References secrets or data exfiltration
- mediumget_webhooks: References secrets or data exfiltration
- +9 more in the full report
Official endpoint
Operated by Agent Cold Email (coldrig.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Agent Cold Email adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Agent Cold Email
Choose Agent Cold Email in the gate directory. No sign-in needed.
Use it anywhere
Agent Cold Email's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Agent Cold Email exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
setup_infrastructure — Provision sending infrastructure: buy branded lookalike domains, create mailboxes, start warmup. New mailboxes are ramp-limited server-side
infrastructure_status — Warmup + provisioning progress per mailbox. New mailboxes are ramp-limited server-side: 5 sends/day week 1 rising to 40/day after 4 weeks; c
launch_campaign — Create and activate a campaign on a lead list. You supply name, offer, leads[], sequence[] (per step: subject, body, delayDays), sendWindow,
campaign_results — Outcome counts for ONE campaign. Input: campaignId (from launch_campaign). Returns { campaignId, sent, reply, bounce, complaint, unsubscribe
metrics — Account-wide outcome totals across ALL campaigns: { sent, reply, bounce, complaint, unsubscribe, failed, soft_bounce } — same shape as campa
inbox — Unified reply inbox across mailboxes. Cursor-paginated → { threads[], nextCursor }; each row: threadId, campaignName, leadEmail, subject, ma
thread — Full message history for ONE thread. Input: threadId (from inbox). Returns { threadId, campaignId, leadId, leadEmail, mailboxEmail (null bef
reply — Send a reply on an existing thread, from the mailbox that sent it. Inputs: threadId, body. Returns { messageId, deduplicated }. A reply is r
+ 20 more tools once connected
The Agent Cold Email MCP server at a glance
https://agent-cold-email-api.yaakovscher.workers.dev/mcpQuestions, answered
Is there an official Agent Cold Email MCP server?
Yes — Agent Cold Email operates its own remote MCP server at agent-cold-email-api.yaakovscher.workers.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Agent Cold Email to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Agent Cold Email in the directory. No account or sign-in is needed. From then on, Agent Cold Email's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Agent Cold Email runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Agent Cold Email MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Agent Cold Email in minutes. No credit card required.
Connect more than just Agent Cold Email
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Agent Cold Email in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI Agent Cold Email — safely.
One URL. All MCPs. Full control. Free to start.
Get started free