60 available actions

What your AI agent can do in Lettr

Lettr is an email and messaging platform for transactional delivery, templates, audiences, campaigns, domains, and webhooks. This page lists every available action. Your agent only receives the actions and permissions required for the role you approve.

Common starting points

Get Audience ContactRetrieve one contact's email, status, custom properties, list memberships, and topic subscriptions by ID.
Get EmailRetrieve a sent email's delivery state, recipients, schedule metadata, and events by request ID.
Create Audience ContactCreate one audience contact with optional properties and list membership.
Create Audience Contact With Double Opt-InCreate an unverified audience contact and irreversibly send an external confirmation email; the contact becomes subscribed only after confirming.
Update Audience ContactChange a contact's email, subscribed or unsubscribed status, or selected custom property values.
Update Audience ListRename an audience list while preserving its contacts.

Browse all 60 actions by capability

Open a capability to see every supported action and its description.

Find & reviewLook up and review existing recordsView 25 actionsHide actions

Get Audience ContactRetrieve one contact's email, status, custom properties, list memberships, and topic subscriptions by ID.
Get Audience ListRetrieve one audience list and its current contact count by ID.
Get Audience PropertyRetrieve one custom contact-property definition and its fallback value.
Get Audience SegmentRetrieve one dynamic segment's list restriction, complete AND-of-OR condition definition, and cached contact count.
Get Audience TopicRetrieve one subscription topic's defaults, visibility, and current contact count.
Get CampaignRetrieve one campaign's name, subject, sender and reply-to configuration, schedule, rendered HTML, lifecycle state, recipient counts, and engagement statistics.
Get DomainRetrieve one sending domain's send readiness, DNS records, provider detection, and verification status.
Get EmailRetrieve a sent email's delivery state, recipients, schedule metadata, and events by request ID.
Get Scheduled EmailRetrieve a scheduled email's current state and events by transmission ID, including after it has been processed.
Get TemplateRetrieve an email template's metadata, active HTML or editor JSON content, and version counts by slug.
Get Template Merge TagsReturn required and optional merge tags for a template's active or specified version before sending with substitution data.
Get WebhookRetrieve one webhook's target, enabled state, event selection, authentication mode, and latest delivery status.
List Audience ContactsReturn one cursor-controlled page of contacts, optionally filtered by search text, status, list, or segment.
List Audience ListsReturn one cursor-controlled page of audience lists with each list's contact count.
List Audience PropertiesReturn one cursor-controlled page of custom contact-property definitions and fallback values.
List Audience SegmentsReturn one cursor-controlled page of dynamic audience segments, including their complete AND-of-OR condition definitions, optionally filtered by list.
List Audience TopicsReturn one cursor-controlled page of subscription topics with defaults, visibility, and contact counts.
List Campaign EventsReturn one cursor-controlled page of a campaign's delivery and engagement events, with event, recipient, and time filters.
List CampaignsReturn one cursor-controlled page of campaigns with complete delivery and engagement statistics, optionally filtered by lifecycle status.
List DomainsReturn all sending domains with approval, DNS verification, and send-readiness status.
List Email EventsReturn one cursor-controlled page of delivery and engagement events across sent emails, with event, recipient, transmission, bounce, and date filters.
List Sent EmailsReturn one cursor-controlled page of sent emails, optionally filtered by recipient and date range.
List ProjectsReturn one cursor-controlled page of Lettr projects and their IDs for use with template operations.
List TemplatesReturn one cursor-controlled page of email templates for a project or the team's default project.
List WebhooksReturn all event webhooks with target, enabled state, event selection, authentication mode, and latest delivery status.

Create & communicateCreate records or send supported messagesView 15 actionsHide actions

Attach Contacts to ListsAttach every combination of 1-1000 contacts and 1-50 audience lists, processing up to 50,000 contact-list pairs and reporting new and existing memberships.
Create Audience ContactCreate one audience contact with optional properties and list membership.
Create Audience Contact With Double Opt-InCreate an unverified audience contact and irreversibly send an external confirmation email; the contact becomes subscribed only after confirming.
Create Audience ListCreate a uniquely named audience list for grouping contacts.
Create Audience PropertyDefine a custom contact property with an immutable name and value type.
Create Audience SegmentCreate a dynamic audience segment whose condition groups are ANDed while conditions inside each group are ORed.
Create Audience TopicCreate a public or private subscription topic with an immutable opt-in or opt-out default.
Create DomainRegister a sending domain and return the DNS configuration needed to verify it.
Create TemplateCreate and publish an email template from either custom HTML or Topol editor JSON, extracting its merge tags.
Create WebhookCreate an active event webhook using no authentication, HTTP Basic credentials, or OAuth 2 client credentials.
Publish Template VersionCreate and activate a new version of an existing email template from exactly one of HTML or Topol editor JSON, optionally renaming the template atomically.
Schedule CampaignSchedule a campaign for future delivery or reschedule it.
Schedule EmailCreate a transactional email scheduled 5 minutes to 3 days in the future; it remains cancellable until processed.
Send CampaignImmediately and irreversibly start sending a sendable draft campaign to its resolved audience.
Send EmailImmediately queue a transactional email to up to 50 recipients using inline content or a Lettr template.

Update & manageChange and manage existing recordsView 7 actionsHide actions

Update Audience ContactChange a contact's email, subscribed or unsubscribed status, or selected custom property values.
Update Audience ListRename an audience list while preserving its contacts.
Update Audience PropertySet or clear a custom contact property's fallback value.
Update Audience SegmentChange a dynamic segment's name, optional audience-list restriction, or complete AND-of-OR condition definition.
Update Audience TopicChange a subscription topic's name, description, or public/private visibility.
Update TemplateRename an email template's metadata without publishing a new version.
Update WebhookPartially update a webhook's name, callback URL, authentication, selected events, or active state.

Remove & cancelRemove records or cancel supported workView 9 actionsHide actions

Cancel Scheduled EmailCancel a scheduled email before its delivery time; cancellation is unavailable once processing has begun.
Delete Audience ContactPermanently delete one audience contact and its associated memberships.
Delete Audience ListsPermanently delete between 1 and 50 audience lists in one request.
Delete Audience PropertyPermanently delete a custom contact-property definition.
Delete Audience SegmentPermanently delete one dynamic audience segment.
Delete Audience TopicPermanently delete one audience subscription topic.
Delete DomainPermanently remove a sending domain from Lettr and SparkPost so it can no longer send email.
Delete TemplatePermanently delete an email template and all of its versions.
Delete WebhookPermanently remove a webhook so Lettr stops delivering events to it.

Other actionsSpecialist and administrative actions.View 4 actionsHide actions

Bulk Create Audience ContactsCreate or recognize up to 1000 normalized, deduplicated contacts.
Detach Contacts from ListsDetach every combination of 1-1000 contacts and 1-50 audience lists, reporting removed and absent memberships.
Unschedule CampaignCancel a scheduled campaign send and return the campaign to draft.
Verify DomainRun Lettr's DNS verification for a registered domain and return DKIM, CNAME, DMARC, SPF, and ownership results.

Connection record

A connection you can control.

Sign-in: Customer-managed key
Setup: Use a key you create and control. It is stored securely and limited to the work agreed for the role.
Boundaries: Only the approved role and actions.
Off switch: Revoke the connection from your account.

FAQ

Before you connect Lettr

How does the agent connect to Lettr?

With a key you create and control. It is stored securely, permissions are limited to what the agent needs, and you can revoke it at any time.

What can the agent actually do in Lettr?

The page above lists the 60 actions currently available through the Lettr connection. The role determines which of those actions the agent may use, and write access is only enabled when the workflow needs it.

Is Lettr included in my plan?

Connections are priced per tool on top of the base plan. Some are included and some are premium. See pricing for how connection charges work.

How long until Lettr is ready?

Timing depends on the sign-in method, permissions and workflow being connected. We confirm the scope and setup plan before enabling the connection.

Bring the workflow together

Ready to put Lettr to work?

Start with the responsibility you want off your plate. We’ll map the connection and the boundaries around it.

Book a setup call Browse all connections

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