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Sender MCP server

Give your AI assistant 7 tools it can call in Sender, over one server URL.

Sender is not a separate install. One Activepieces MCP server exposes it alongside 760+ other apps, behind a single URL.

Tools
7
Works with
Any MCP client
Auth
API key
License
MIT, open source
Updated
August 2026

About the Sender MCP server

Connect Sender once in Activepieces and every action it ships becomes a tool your assistant can call, behind the same server URL as the rest of your apps. Your agent reaches Sender and 760+ other apps over a single connection, on our cloud or a self-hosted install.

Tools

Sender tools your AI can run

Once connected, your assistant can call any of these Sender actions by asking in plain language.

  • Add / Update Subscriber

    Add a new subscriber or update existing subscriber's data

    7 fields

  • Create Campaign

    Creates a draft campaign in Sender

    6 fields

  • Unsubscribe Subscriber

    Mark an email address as unsubscribed globally or from a group

    1 field

  • Add Subscriber to Group

    Add an existing or new subscriber into one or more groups

    2 fields

  • Remove Subscriber from Group

    Remove a subscriber from a specific group

    2 fields

  • Send Campaign

    Trigger sending of a drafted campaign to its recipient list

    1 field

  • Update Subscriber

    Update an existing subscriber's data

    6 fields

Triggers

Sender events your agent can watch

These start a run the moment something happens in Sender, so work gets picked up on its own.

  • New Campaign

    Fires when a new campaign is created in Sender

  • New Group

    Fires when a new group/list is created

  • New Subscriber

    Fires when a subscriber is added to any group or to account

  • New Subscriber in Group

    Fires when a subscriber is added to a specific group/list

    1 field

  • Updated Subscriber

    Fires when a subscriber's data (fields) is updated

  • New Unsubscriber

    Fires when someone unsubscribes globally

  • New Unsubscriber From Group

    Fires when a subscriber is removed/unsubscribed from a specific group

    1 field

Give your assistant Sender

Connect Sender once and every tool above is callable from Claude, Cursor or any MCP client, behind the same server URL as 760+ other apps. Free to start.

Sender MCP, answered.

No. That is the point of it. One Activepieces server exposes Sender alongside every other piece you connect, so your client keeps a single connection.

Yes. Activepieces is open source and free to start, and the MCP server is included on every plan, from the free cloud tier to any self-hosted deployment.

Connect Sender in Activepieces, enable the server under Settings → MCP Server, then paste your server URL into your client config. It authenticates over OAuth on first use.

It can call 7 tools, including Add / Update Subscriber, Create Campaign, Unsubscribe Subscriber, and chain them with steps in other apps inside the same run.

Connections use OAuth2 with limited scopes and are stored under 256-bit encryption, with no API to read them back, so an agent gets scoped access rather than your keys.