Early accessMCP server for ChatGPT

Cold email MCP server for ChatGPT and the OpenAI API

Give ChatGPT or your OpenAI agent the tools to run cold email: domains, mailboxes, warm-up, campaigns and replies. It quotes the order, you pay on Stripe, and it reports back until the campaign is live.

Get early accessGet API key
  • You approve every order
  • Payment on Stripe, never in chat
  • $2.50 per mailbox a month
ChatGPT · Outreach2day MCP

We need 20 mailboxes for a new outbound team. Use 5 domains that look like northwind.io. Quote it.

called outreach2day tools

Free: getnorthwind.io, northwindhq.com, trynorthwind.co, northwind-mail.com, meetnorthwind.io.

Quote: 20 mailboxes at $2.50 = $50.00 a month, plus 5 domains billed yearly.

Say yes and I will create the Stripe checkout link.

Example conversation. Domains and numbers are made up.
teams have used Outreach2day
3,600+
emails sent a day
40M+

Among them

Can ChatGPT run cold email through MCP?

Yes, in early access, through the OpenAI Responses API and Codex CLI with an API key. The ChatGPT app needs OAuth sign-in, which ships after early access.

Status: early access · Updated 28 September 2026

How it works

Cold email in ChatGPT, step by step

  1. 1

    Connect once

    Add the server to a Responses API call with your key in a header. The model picks the Outreach2day tools it needs.

  2. 2

    Quote, confirm, pay

    The model returns our quote to your user or your app. A yes creates a Stripe checkout link; payment happens on Stripe.

  3. 3

    Follow the order

    The model polls the order until domains, DNS and mailboxes are done, then starts warm-up.

  4. 4

    Run the campaign

    After warm-up it builds the sequence, launches it and pulls replies and per-mailbox stats into your workflow.

Where it works

Outreach2day in ChatGPT: where to connect

Prompts

Things to ask ChatGPT

Plain language is enough. The agent picks the tools and asks before anything costs money.

  • We need 20 mailboxes on 5 domains that look like northwind.io. Quote it.
  • List every mailbox with its warm-up inbox rate, lowest first.
  • Import contacts.csv into the Q4 campaign and run the preflight check.
  • Summarize this week's replies by campaign: interested, not now, unsubscribe.
  • Export the 12 warm mailboxes on northwindhq.com to our Instantly workspace.

Tools

23 tools, from domains to replies

Tools ship to early-access workspaces first. Today the REST API covers workspaces, domain checks and warm-up status.

Account and pricing

  • get_pricing Current prices for mailboxes and domains
  • get_account_status Workspaces, mailboxes by state, open orders and the next step

Domains

  • check_domains Which domain names are free to buy
  • list_domains Your domains and their DNS status
  • connect_own_domains Connect domains you own; returns the records to set

Orders

  • quote_order Priced quote for domains and mailboxes
  • create_checkout Stripe checkout link for a confirmed quote; charges nothing
  • get_order Per-domain and per-mailbox setup state

Mailboxes and warm-up

  • list_mailboxes Mailboxes and their state, no credentials
  • start_warmup Start warm-up on mailboxes
  • get_warmup_status Warm-up stage, inbox rate and ready date

Campaigns

  • create_campaign Create a draft campaign
  • upsert_campaign_step Add or edit a sequence step
  • check_copy Check copy for spam words
  • import_campaign_contacts Import contacts into a campaign
  • attach_campaign_mailboxes Attach warm mailboxes to a campaign
  • preflight_campaign Check a campaign before launch
  • launch_campaign Launch after warm-up and a green preflight; needs confirmation
  • pause_campaign Pause a campaign

Results and export

  • get_campaign_stats Sent, bounces, replies per campaign and mailbox
  • list_replies Replies with campaign, step and mailbox
  • list_sequencers Connected Instantly and Smartlead workspaces
  • export_mailboxes_to_sequencer Send warm mailboxes to your sequencer; needs confirmation

Guardrails

ChatGPT quotes. You pay.

Money moves only on a Stripe page you open. ChatGPT can prepare an order, never complete one.

ChatGPT can

  • Check domains, quote an order and send you the Stripe link
  • Connect domains you already own and give you the DNS records
  • Start warm-up and tell you when each mailbox is ready
  • Write and check the sequence, import contacts, launch after warm-up
  • Read replies and per-mailbox stats, pause a campaign that trips bounce limits
  • Export warm mailboxes to Instantly or Smartlead after you confirm

ChatGPT cannot

  • Charge a card: every payment happens on a Stripe page you open
  • Launch a campaign before warm-up is done and the preflight check passes
  • Delete domains or mailboxes, cancel your plan or rotate passwords
  • Show mailbox passwords, SMTP/IMAP credentials or API keys in the chat
  • Order more than the first-order and daily spend limits of your workspace

Early access

Works today

The REST API is open to every account now. The MCP server opens to early-access workspaces first.

Get API key

Works today

  • The REST API, open to every account: workspaces, domain checks, warm-up status. API docs
  • A local MCP server over the API in about 110 lines of Python. Build it

Book a call

Get early access in a 15-minute call

Talk to the team building the MCP server. We add your workspace to early access and send the setup steps for ChatGPT.

  • Add your workspace to the MCP early access
  • Set first-order and daily spend limits
  • Get the setup steps for ChatGPT

See open times in your time zone and book without leaving the page.

Or open the booking page

Customers

Teams that send with Outreach2day

  • “That was the best infrastructure and value for money I saw.”
    Ido RebhunIdo RebhunRenaissance
  • “…deliverability with your inboxes is better than our outlook/google inboxes…”
    Daniel DultsinDaniel DultsinControl
  • “We really would like to thank you for that report. We don’t know what we are doing with email and it is very reassuring to us to know we have a partner on top of the ball.”
    ReilcapBill OConnorReilcap

FAQ

Questions

Or talk to the team

Can I add the Outreach2day MCP server to the ChatGPT app?

ChatGPT developer mode connects remote MCP servers that sign in with OAuth, on paid plans. We add OAuth sign-in after early access. The OpenAI Responses API and Codex CLI work with an API key in a header.

Do I need to write code to use it with OpenAI?

With the Responses API, one tool entry in your request is enough. The model reads the tool list from our server and calls the tools itself.

Can ChatGPT spend money on my behalf?

No. ChatGPT can ask for a quote and hand you a Stripe checkout link. You pay on the Stripe page yourself. Quotes are priced by Outreach2day, and new workspaces have first-order and daily spend limits.

Is the Outreach2day MCP server available now?

In early access. Book a call and we add your workspace to the first group. The REST API is open to every account today: create a key in the app and call it from any script or agent.

What does it cost?

The MCP server comes with your Outreach2day account. You pay for what the agent orders: $2.50 per mailbox a month, domains billed yearly, both shown in the quote before you pay.

Which tools does the server have?

Tools for pricing and account status, domains, orders and Stripe checkout, mailboxes and warm-up, campaigns, replies and stats, and export to Instantly or Smartlead. The full list is on this page.

Can I use domains I already own?

Yes. The agent connects them and returns the DNS records to set at your registrar. Connecting your own domains is free.

How long until new mailboxes can send?

About 14 days of warm-up. The agent reports each mailbox's warm-up stage and ready date, and launch is refused until warm-up is done.

Can I keep sending from Instantly or Smartlead?

Yes. The agent exports warm mailboxes to your Instantly or Smartlead workspace after you confirm, and you keep your sequences there.

Does ChatGPT see my mailbox passwords?

No. No tool returns passwords, SMTP or IMAP credentials, or API keys. Export to a sequencer is the only step that moves credentials, and it needs your confirmation.

What happens if part of an order fails?

The order shows which domain or mailbox failed, with a link to support. Our team retries or refunds that item.

Clients

Other AI clients

The same server and the same tools in every client. Only the setup differs.

Read next

Guides for MCP and the API

Run cold email from ChatGPT

Domains, mailboxes, warm-up, campaigns and replies from ChatGPT. You approve every order. Book a call to join early access.

Get early accessGet API key