Instantly MCP server

What the model can do

Instantly.ai cold email: campaigns with status and analytics (sent, opens, replies, bounces, opportunities), leads and their engagement, sent and received emails, sending accounts with warmup health, and lead lists. When asked, can start, pause or duplicate a campaign, reply to an email, add leads to a campaign or list, edit a lead or its interest status, move or delete leads, pause or resume a sending account, mark a thread read, and create an empty lead list.

Reads

• instantly_list_campaignsInstantly campaigns: name, status (draft, active, paused, completed, or a problem such as bounce protect), daily limit…
• instantly_campaign_analyticsResults per Instantly campaign over a period: leads, contacted, emails sent, opens, replies, clicks, bounces, unsubscribes, completed…
• instantly_list_leadsInstantly leads: email, name, company, job title, status, interest, opens, replies and clicks.
• instantly_list_emailsEmails Instantly sent and received (the unibox): when, subject, from, to, lead, campaign, thread and a preview.
• instantly_list_accountsInstantly sending accounts (mailboxes): address, status, warmup status and score, daily limit.
• instantly_list_lead_listsInstantly lead lists: name, id, whether enrichment is running, when created.

Acts, when you ask

These change something in Instantly. The model is told to use them only when you ask for exactly that, and each one is granted by name: per team on a shared connection, by the owner on a personal one.

• instantly_activate_campaignStarts or resumes an Instantly campaign.
• instantly_pause_campaignPauses an Instantly campaign: it stops sending until activated again.
• instantly_duplicate_campaignCopies an Instantly campaign (its sequence, schedule and settings) under a new name.
• instantly_reply_to_emailSends a reply to a received email in Instantly, from the connected sending account given, to the original sender plus anyone added.
• instantly_create_leadAdds one lead to an Instantly campaign or lead list.
• instantly_add_leadsAdds up to 100 leads at once to an Instantly campaign or lead list.
• instantly_update_leadEdits an Instantly lead's fields (name, company, title, personalisation, custom variables) or its interest status.
• instantly_set_lead_interestSets the interest status of a lead, found by email, in Instantly (interested, meeting booked, won, not interested, ...)…
• instantly_move_leadsMoves (or copies) named Instantly leads from one campaign or list to another.
• instantly_delete_leadPermanently deletes one Instantly lead, with its place in any campaign.
• instantly_pause_accountPauses or resumes an Instantly sending account (mailbox).
• instantly_mark_thread_readMarks an email thread read in Instantly's unibox.
• instantly_create_lead_listCreates a new, empty lead list in Instantly.

Connect it

First connect Instantly on Dashboard → Connections, then add Memtro to your client once. The Instantly tools appear alongside the tools of everything else you have connected; nothing is configured per connector.

claude plugin marketplace add memtro-org/claude-memtro
claude plugin install memtro@memtro --config api_key=sk-memtro-...

{
  "mcpServers": {
    "memtro": {
      "url": "https://platform.memtro.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-memtro-..."
      }
    }
  }
}

{
  "mcp": {
    "memtro": {
      "type": "remote",
      "url": "https://platform.memtro.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-memtro-..."
      }
    }
  }
}

Who may use it

The key identifies the person, and the server offers that person the tools they may use everywhere else in Memtro. A shared Instantly connection is used by the teams an administrator granted it to, tool by tool, on the Permissions page; a personal connection is used by its owner alone, and its tools that act stay off until the owner allows them. See Teams and permissions and Connectors.

Ask it like this

• › How is the Q4 campaign doing?
• › Which leads replied and are marked interested?
• › Which mailboxes have a low warmup score?
• › What did Dan Fletcher at Acme reply to our last email?
• › Pause the Northwind outreach campaign

Questions

Is this an official Instantly MCP server?

No. It is Memtro's MCP server with Memtro's Instantly connector behind it: the connector reads Instantly through its API with the credentials you connect on Dashboard → Connections, and Instantly publishes nothing here. The same endpoint carries every other system you connect and Memtro's memory tools.

What does it cost?

Nothing on top of Memtro. One price per organisation by its number of users, from $50 a month for up to 10 users after a 7-day free trial, with every connector, the MCP server, jobs and memory included. You bring your own model keys.

Can it change anything in Instantly?

Only when you ask, and only what it has been granted: create an empty lead list; start or resume a campaign: it begins emailing its leads; pause a campaign; duplicate a campaign (the copy is not started); reply to a received email from a connected sending account; add one lead, or up to 100, to a campaign (they will be emailed) or a list; edit a lead's fields or interest status; set a lead's interest status by email address; move or copy named leads to another campaign or list; delete a lead permanently; pause or resume a sending account; mark an email thread read. Every other tool reads, searches or lists. An administrator grants each acting tool by name per team, and a personal connection acts only after its owner allows it.

Which clients work?

Any MCP client that speaks Streamable HTTP: Claude Code, Cursor, Claude Desktop, OpenCode, Codex, Zed, Windsurf, Cline and the Anthropic and OpenAI SDKs. There is no local process to run; the server is remote and authenticated with your key.

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