Unisender

33 tools available

UniSender is a simple and easy-to-use service for email and SMS marketing campaigns

Connect Unisender to Definable to automate repetitive tasks, sync data with the rest of your stack, trigger on real-world events. Personas call Unisender's 33 tools directly from chat or scheduled flows. You can wire it into any persona to read, write, and react when an event fires.

Common workflows with Unisender

Trigger on event

Listen for a new event
Parse and validate the payload
Take an action with the linked tool

Daily summary

Pull yesterday's activity
Summarise with the model of your choice
Send the digest via email or Slack

Cross-tool sync

Read records from one app
Transform with a persona
Write the result back via this integration

Unisender actions 33

Every Unisender action below is a callable tool any Definable persona can invoke.

Check Email Status

Tool to check the delivery status of emails sent via sendEmail method. Use when you need to verify email delivery status by email IDs. Statuses are stored for approximately one month. Rate limited to 300 requests per 60 seconds.

Create Email Template

Tool to create a new email template for mass campaigns in UniSender. Use when you need to create a reusable email template with customizable title, subject, body content, and sender information.

Create Field

Tool to create a new custom field for contact data in UniSender. Use when you need to add a custom field that can store additional contact information and be used in email message substitutions.

Create List

Tool to create a new contact list for organizing thematic email campaigns in UniSender. Use when you need to create a new mailing list with a unique title. The list title must be unique within the account.

Create Subscriber Note

Tool to create a note for a subscriber contact in UniSender. Use when you need to add a new note to a subscriber's profile. Notes created via API have an 'origin' field set to 'api'.

Delete Field

Tool to remove a custom field from the Unisender system. Use when you need to permanently delete a custom field and all its associated contact data.

Delete List

Tool to permanently delete a contact list from your UniSender account. Use when you need to remove a mailing list by its ID.

Delete Subscriber Note

Tool to delete a subscriber note from UniSender by its ID. Use when you need to remove a note associated with a subscriber/contact from the system.

Delete Tag

Tool to delete a tag by its ID and remove it from all associated contacts. Use when you need to remove a tag from your UniSender account.

Delete Template

Tool to remove a template from the UniSender account. Use when you need to permanently delete a template by its ID.

Exclude Contact from Lists

Tool to remove contacts from specified lists or all lists in UniSender. Use when you need to exclude a contact (email or phone) from mailing lists. Unlike unsubscribe, exclude actually removes the contact from lists, allowing them to be re-added later using the subscribe method. Recommended when subscription management is performed by sender's initiative.

Export Contacts

Tool to export contact data from UniSender lists for synchronization. Use when you need to export email addresses, phone numbers, and custom fields from lists. This method works asynchronously - the response contains a task_uuid for tracking export status.

Get Campaigns

Tool to retrieve list of campaigns from Unisender within a specified date range. Use when you need to fetch email campaign information with optional filtering by date and pagination support. Returns up to 10,000 campaigns per request.

Get Campaign Status

Tool to check the current status of a campaign in UniSender. Use when you need to verify campaign progress or completion status. Returns detailed status information including creation time and start time.

Get Contact

Tool to get information about a single contact from UniSender. Use when you need to retrieve detailed contact data including email/phone status, custom fields, list memberships, and engagement statistics. Either email or contact_id must be provided.

Get Contact Field Values

Tool to retrieve custom field values for a specific contact identified by email address. Use when you need to get additional field data associated with a contact. You can optionally specify which fields to retrieve by providing field IDs.

Get Fields

Tool to retrieve all custom user-defined fields for contact personalization and data management. Use when creating integrations to map fields between systems or to retrieve available custom fields for contacts.

Get Lists

Tool to retrieve all existing mailing lists associated with the account. Use when you need to get list IDs and titles before sending emails or SMS to a list, or to display available contact lists.

Get Messages

Tool to retrieve list of all messages with body and attachments. Use when you need complete message information including content and attachments, unlike listMessages which returns only metadata.

Get Sender Domain List

Tool to retrieve information about sender domains and their DKIM status. Use when you need to check which domains are registered for sending emails and their verification status.

Get Tags

Tool to retrieve all custom tags/labels for contact segmentation. Use when you need to list all available tags in the Unisender account.

Get Template

Tool to retrieve detailed information about a specific email template by its ID. Use when you need to fetch template details including metadata, content, creation details, and formatting information.

Get Templates

Tool to retrieve list of all templates with full content including body. Use when you need complete template information including raw_body and body fields, unlike listTemplates which returns templates without body content.

Import Contacts (Bulk)

Tool to bulk import contacts to UniSender with maximum 500 contacts per call. Use when you need to import multiple contacts at once with their fields, list subscriptions, and tags. Supports creating new contacts, updating existing ones, and managing list subscriptions. UniSender automatically validates emails and filters spam-traps.

Check if Contact is in Lists

Tool to check if a contact exists in specified mailing lists based on and/or conditions. Use when you need to verify whether a contact is a member of specific lists. The condition parameter allows checking if the contact is in all lists (and) or at least one list (or).

List Messages

Tool to list all messages without body and attachments. Use when you need to browse available messages created via API or web interface.

List Templates

Tool to list email templates without body content. Use when you need to browse available templates created via API or web interface.

Subscribe Contact to Lists

Tool to add contacts to one or multiple mailing lists with optional tags and field values. Use when you need to subscribe a contact (email and/or phone) to Unisender lists. This method adds contacts individually and can override existing contact data based on the overwrite parameter. Contacts previously excluded can be re-added using this action.

Unsubscribe Contact

Tool to unsubscribe contacts from mailing lists in UniSender. Use when a contact initiates opt-out from campaigns. This marks contacts as 'unsubscribed' rather than excluding them - the active status can only be restored by the contact clicking an activation link.

Update Email Template

Tool to update an existing email template for mass campaigns. Use when you need to modify template properties like title, subject, body content, sender information, or language settings. Only the fields you specify will be updated.

Update Field

Tool to modify parameters of an existing custom field in UniSender. Use when you need to change field properties like name, display name, type, visibility, or display position.

Update List

Tool to update the parameters of an existing contact list in UniSender. Use when you need to change the title, pre-subscription URL, or post-subscription URL of an existing mailing list.

Update Subscriber Note

Tool to update the content of an existing subscriber note in UniSender. Use when you need to edit or modify the content of a previously created note attached to a subscriber.

Frequently asked questions

What can I automate with Unisender on Definable?

Anything Unisender exposes through its API. Common marketing workflows on Definable include automate repetitive tasks, sync data with the rest of your stack, trigger on real-world events. Personas can call any of the 33 Unisender tools directly, then chain the result into another integration without you writing code.

How does Unisender authentication work?

Unisender uses API_KEY on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.

Is the Unisender integration included in my Definable plan?

Yes — every Definable plan, including Starter, includes access to all 33 Unisender tools. You only need a separate Unisender subscription if Unisender itself charges per seat or per API call.

Is using Unisender through Definable secure?

Every call from a persona to Unisender is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.

How do I get started with Unisender on Definable?

Sign up for Definable, open the integrations page, find Unisender, and connect via OAuth or API key. You can immediately attach Unisender to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.

What Unisender actions does Definable expose?

Definable exposes all 33 Unisender actions as callable tools — including `Check Email Status`, `Create Email Template`, `Create Field`, plus 30 more. Each tool gets a typed parameter schema so personas know exactly how to call it.

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