Powerful and simple all-in-one email marketing platform providing effective solutions for rapid business growth.
Powerful and simple all-in-one email marketing platform providing effective solutions for rapid business growth. On Nagent, Mailercloud is exposed as a fully-configurable email newsletters integration that any agent can call — 6 actions, and API key authentication. No code is required to wire Mailercloud into your workflow — connect it once via the External Integrations panel and reuse it across every agent you build.
Agent builders use Mailercloud to automate the kinds of tasks email newsletters teams previously handled manually. Concrete examples — each one is a single agent step in Nagent — include:
Every action and trigger is paired with a structured input/output schema (visible in the sections below), so when you wire Mailercloud into Helix — our agentic agent builder — the editor knows exactly what each step expects and produces. Configure once, deploy anywhere across your Nagent agents.
Every operation an agent can call against Mailercloud, with input parameters and output schema. Drop these into any step of an agent built in Helix.
MAILERCLOUD_CREATE_LISTTool to create a new recipient list in Mailercloud for storing and managing contacts. Use when you need to create a new mailing list for organizing contacts.
Input parameters
Name of the list to create. This is the display name that will be used to identify the list.
Type of list to create. Use 1 for Subscription List.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
MAILERCLOUD_CREATE_PROPERTYCreate a custom property for contacts in Mailercloud. Custom properties store specific information for contact records. Maximum of 100 properties allowed per account.
Input parameters
Name of the custom property to create. This will be used to identify the property when storing contact information.
Type of the custom property. Defines the kind of data that can be stored in this property. Common types include 'text' for string values, 'number' for numeric values, and 'date' for date values.
Optional description of the custom property. Helps document the purpose and usage of the property.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
MAILERCLOUD_DELETE_PROPERTYTool to delete a custom contact property by ID. Use when removing unused custom fields from contacts. Cannot delete properties used in webforms.
Input parameters
Unique identifier of the custom property to delete. WARNING: You cannot delete a property if it is used in a webform.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
MAILERCLOUD_GET_CLIENT_PLANTool to retrieve client plan information from Mailercloud. Use when you need to check the current subscription status, plan details, or verify API connectivity.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
MAILERCLOUD_SEARCH_CONTACTSTool to retrieve contacts in a specific list with pagination. Use when you need to list or search contacts within a known list ID.
Input parameters
Page number for pagination (must be at least 1)
Number of records per page (1-100)
ID of the list to search contacts in
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
MAILERCLOUD_UPDATE_PROPERTYTool to update a custom property of contacts in Mailercloud. Use when you need to modify the name or description of an existing custom property. Note: Editing custom property type using this API is not possible - you can only edit the name and description.
Input parameters
New name for the custom property. If not provided, the current name will be retained.
New description for the custom property. If not provided, the current description will be retained.
The ID of the property to update. Use MAILERCLOUD_LIST_PROPERTY to find available property IDs.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
No publicly available marketplace agent is found using this tool yet. There are 83 agents privately built on Nagent that already use Mailercloud.
Build on Nagent
Connect Mailercloud to any Nagent agent in minutes — no API key management, no boilerplate. Just configure and deploy.
The five questions agent builders ask before adopting a new integration.
Open the External Integrations panel inside Nagent (app.nagent.ai/externalIntegration), find Mailercloud, and click "Connect Now." You'll authenticate with an API key — Nagent handles credential storage and refresh automatically. Once connected, Mailercloud is available to any agent in your workspace.
No. Nagent provides no-code integration for every tool. Once Mailercloud is connected, you configure its 6 actions directly in the agent builder UI — no API calls, no boilerplate, no schema management.
Helix — Nagent's agentic agent builder — lets you drop Mailercloud steps into any workflow visually. Pick an action (e.g., one of those listed above), fill in the inputs (Helix knows the required vs. optional schema for each parameter), and connect it to upstream/downstream steps. Triggers run as the entry point of an agent, so when a Mailercloud event fires, the agent kicks off automatically.
Every Mailercloud action and trigger ships with a fully-typed schema — input parameters with name, type, required flag, and description, plus the output payload shape. The schemas are documented in the sections above. Helix uses these schemas to validate your configuration at build time and to type-check the data flowing between steps.
Yes. While Mailercloud ships with 6 pre-built email newsletters actions, you can layer custom logic around them inside Helix — pre/post-processing steps, conditional branches, retries, or stitching Mailercloud together with other connected tools. For deeper customization, talk to our team about Nagent's Agentic AI Lab — forward-deployed engineers who build Mailercloud-based workflows tailored to your business.