Email and Messaging integrations on Metorial

Heartbeat

Manage an online community on Heartbeat. Create, retrieve, update, and deactivate members. Manage groups and group membership, including moving users between groups. Create threads and comments in channels with plain text or rich text (HTML) content. Create channels and events, with support for Zoom or built-in voice locations. Send direct messages to community members. Send invitation emails to new users. Configure webhooks to receive notifications for community activity such as new users, threads, events, group joins, course completions, event RSVPs, direct messages, and abandoned invitations.

Help Scout

Manage customer support conversations, customers, and knowledge base content. Create, update, assign, and close conversations across shared mailboxes. Add replies, notes, and attachments to conversation threads. Create and manage customer profiles with contact details and custom properties. Organize customers into companies/organizations. Manage tags, teams, users, and automated workflows. Create and update knowledge base articles, collections, and categories via the Docs API. Access support reporting including conversation volume, response times, user productivity, and customer satisfaction ratings. Configure webhooks to receive real-time notifications on conversation, customer, and organization changes.

Helpwise

Manage shared inboxes and customer conversations across email, SMS, WhatsApp, live chat, and social media channels. Send and list emails, create and manage mailboxes, track and assign conversations, add internal notes, manage contacts, upload attachments, organize with tags, and use email templates. Manage teams, users, and webhooks for real-time event notifications on conversation lifecycle, assignment, and message activity.

Heyy

Send messages to contacts across WhatsApp, Instagram, Facebook Messenger, and website live chat from a unified inbox. Create and update contacts, upload files for conversations, retrieve business account information, and run marketing campaigns. Receive webhook notifications for incoming messages across all connected channels. Supports AI-powered customer support, lead qualification, and automated conversation workflows.

Hiver

Manage shared email inboxes and customer support conversations within Gmail and Outlook. List and browse shared inboxes, retrieve and update conversations (status, assignee, tags), search users and tags per inbox, and track email activity. Receive real-time webhooks for conversation updates, new inbound/outbound conversations, sent/received emails, internal notes, and CSAT ratings.

Hunter

Find, verify, and enrich professional email addresses and company data. Search for all emails associated with a domain, find specific contacts by name or LinkedIn handle, and verify email deliverability. Enrich person and company profiles with detailed information including employment details, social profiles, technographics, industry classifications, and funding data. Discover companies using natural language queries or structured filters. Manage leads and lead lists, run email outreach sequences, and track sequence events like opens, clicks, and replies via webhooks. Retrieve company logos and check account credit usage.

Incidentio

Create, manage, and track incidents throughout their lifecycle. Declare incidents with severity, status, custom fields, and assigned roles. Ingest and route alerts from external monitoring tools, configure escalation paths, and manage on-call schedules with rotations and overrides. Maintain a service catalog of types and entries. Define custom severities, statuses, incident roles, and timestamp milestones. Track post-incident follow-ups and actions. Manage public-facing status pages with incidents, maintenance windows, and component hierarchies. Create automated workflows triggered by incident events. Receive webhook notifications for incident, alert, and follow-up events.

Instantly

Manage cold email outreach campaigns at scale. Create, launch, pause, and monitor email campaigns with A/Z testing and automated follow-up sequences. Add, update, and organize leads into lists with custom labels and tags. Connect and manage sending email accounts (Google Workspace, Microsoft, SMTP/IMAP) with inbox rotation. Verify email addresses to reduce bounces. Run inbox placement tests to check spam and deliverability. Enrich leads using the B2B SuperSearch database for email and LinkedIn lookups. Manage block lists to prevent sending to specific addresses or domains. Retrieve campaign analytics including sends, opens, clicks, replies, and bounces. Manage workspace members and team settings. Subscribe to webhooks for real-time events on email sends, opens, clicks, replies, bounces, lead status changes, meeting bookings, campaign completions, and account errors.

Intelliprint

Send physical letters and postcards programmatically via a UK-based hybrid mail service. Create and manage print jobs with support for PDF, Word, HTML content, or dynamic templates. Configure postage services including UK First/Second Class, Signed For, Special Delivery, Tracked, and International options. Schedule mailings for future dates, track letter status through printing, dispatch, and delivery stages, and cancel jobs before production. Send bulk mail by splitting large documents or batching recipients in a single API call. Apply reusable backgrounds and letterheads, attach extra documents, and customize page positioning. Receive webhook notifications for letter status updates and mailing list address validation.

Invision

InVision was a digital product design platform that provided design collaboration, prototyping, and design system management tools. It was permanently shut down on December 31, 2024, and no API integration is currently possible. Prior to shutdown, its limited API capabilities included: retrieving design tokens (colors, typography, spacing) and icons from Design System Manager (DSM), and SCIM-based user provisioning for Enterprise accounts. InVision never offered a general-purpose API for managing prototypes, projects, or core platform resources. Its Freehand collaboration tool was acquired by Miro in 2023.

Iterable

Manage cross-channel marketing automation across email, push notifications, SMS, in-app messages, web push, and WhatsApp. Create, update, and delete user profiles, track custom and commerce events, and manage subscription preferences. Create and manage campaigns (blast or triggered) and message templates with Handlebars personalization. Organize users into lists for audience targeting. Send transactional messages to individual users via API-triggered campaigns with dynamic data fields. Create and manage catalogs of items for template personalization. Create, update, and delete reusable content snippets for embedding in templates. Export user data, event data, and campaign metrics as CSV. Manage messaging channels and message types. Receive real-time webhook notifications for email, push, SMS, in-app, web push, WhatsApp, subscription, journey, and embedded messaging events.

Kickbox

Verify email addresses for deliverability, detect disposable, role-based, and free email domains, and identify typos in email addresses. Supports single real-time email verification and batch verification of up to 1 million addresses. Returns deliverability status (deliverable, undeliverable, risky, unknown), a Sendex quality score, and suggested corrections for misspelled domains. Useful for cleaning email lists, reducing bounce rates, and validating user-submitted emails.

Klaviyo

Manage email, SMS, and push notification marketing campaigns for eCommerce. Create and update customer profiles, manage lists and segments, build automated messaging flows, track events, and query performance reports. Supports product catalog management for recommendations and back-in-stock alerts, coupon creation, email template design, form management, and audience segmentation based on behavioral and predictive data. Subscribe and unsubscribe profiles from marketing channels, request data privacy deletions, and configure webhooks for real-time event forwarding.

Laposta

Create, send, and track email newsletter campaigns. Manage mailing lists with subscriber counts and notification settings. Add, update, delete, and bulk-synchronize subscribers across lists with support for upsert and double opt-in control. Define custom fields (text, numeric, date, select) on lists and manage select options. Create segments based on custom field conditions. Build campaign content from HTML or URL import with optional CSS inlining, schedule or send campaigns immediately, and send test emails. Retrieve campaign performance reports including opens, clicks, bounces, and unsubscribes. Configure webhooks for subscriber events (subscribed, modified, deactivated).

Listclean

Verify and validate email addresses in real time or in bulk. Check email syntax, DNS/MX records, SMTP responses, and risk signals to classify emails as valid, invalid, catch-all, disposable, or role-based. Upload CSV or TXT files for batch list cleaning with duplicate removal. Find business email addresses by name and domain. Retrieve account profile and credit balance. Receive webhook notifications for email delivery events including opens, clicks, bounces, and unsubscribes.

Loom

Record video messages capturing screen, camera, and microphone directly within web applications. Embed Loom video players by converting share URLs into rich embedded content. Retrieve video metadata including title, thumbnail, dimensions, and duration via the oembed method. Listen to client-side recording lifecycle events such as recording start, completion, and upload. Replace Loom links in text or DOM elements with embedded video players or GIF previews.

Loopsso

Manage contacts, send emails, and track engagement for SaaS email marketing. Create, update, find, and delete contacts with custom properties. Send transactional emails using templates with dynamic data variables and attachments. Trigger automated email workflows (loops) by sending events. Manage mailing list subscriptions. List contact properties and transactional email templates. Receive webhooks for contact changes, email sends, deliveries, opens, clicks, bounces, and unsubscribes.

Loomio

Create and manage group discussions, proposals, and polls for collaborative decision-making. Supports multiple voting methods including proposals, score voting, ranked choice, dot voting, and meeting polls. Create discussion threads with Markdown or HTML content and notify recipients. Configure poll options, anonymous voting, result visibility, and closing times. Manage group memberships by inviting users via email and syncing member lists. Retrieve details of discussions and polls. Receive outgoing webhook notifications for events such as new threads, polls, comments, votes, and outcomes.

Mailbluster

Manage email marketing leads, products, and e-commerce orders in MailBluster. Create, read, update, and delete leads (subscribers) with custom fields, tags, and subscription status. Manage custom fields for campaign personalization. Create and manage products for e-commerce tracking. Create and manage orders linked to products and campaigns for revenue attribution. Note: the API does not send emails directly; it manages lead and e-commerce data used by MailBluster's email campaign system.

Mailboxlayer

Validate and verify email addresses in real time. Check email syntax against RFC standards, verify existence via MX record lookup and SMTP checks, detect disposable and free email providers, identify role-based addresses, and receive a deliverability quality score. Supports single and bulk email validation, typo detection with "did you mean" suggestions, and catch-all detection.

Mailcheck

Verify and validate email addresses for deliverability and trustworthiness. Check single emails instantly with a trust score, upload CSV files for bulk email list verification of up to 1,000,000 addresses, and monitor batch operation status. Retrieves validation data from social networks and public sources to score emails beyond simple MX checks.

Mailcoach

Manage email marketing campaigns, subscriber lists, and transactional emails. Create and send campaigns with HTML or Markdown, schedule sends, and track opens, clicks, bounces, and unsubscribes. Add, update, remove, and segment subscribers using tags. Bulk import subscribers into lists. Create reusable email templates with placeholder fields. Send transactional emails with custom content or templates. Manage suppressions to block specific addresses. Receive webhooks for subscriber, campaign, tag, engagement, and bounce events.

Mailercloud

Create and send email marketing campaigns and transactional emails. Manage contact lists, add and update subscribers, and organize contacts with custom properties. Set up email automations to send targeted, personalized emails based on segments, lists, or webforms. Segment contact lists by criteria like subscription status, demographics, or campaign tags. Track campaign performance through webhooks for events like sends, opens, clicks, bounces, spam reports, and unsubscribes. Create and manage webhooks for real-time event notifications. Retrieve account and plan information.

Mailersend

Send transactional emails and SMS messages. Manage email templates, sending domains, and sender identities. Verify email addresses individually or in bulk. Configure inbound email and SMS routing. Track email delivery activity and analytics including opens, clicks, bounces, and spam complaints. Manage recipient suppression lists, API tokens, SMTP users, and team member access. Schedule emails for future delivery and send bulk email batches. Monitor DMARC reports for sending domains.

Mailerlite

Manage email marketing subscribers, campaigns, automations, and signup forms. Create, update, and segment subscribers into groups with custom fields. Build and send email campaigns (regular, A/B split, resend) with scheduling and activity reporting. List and monitor marketing automations and their subscriber activity. Manage signup forms and track form submissions. Connect external e-commerce shops to manage products, orders, carts, and customers for abandoned cart automations, post-purchase emails, and sales tracking. Configure webhooks to receive real-time notifications on subscriber events (created, unsubscribed, bounced, spam reported) and campaign events (sent, opened, clicked).

Mailgun

Send, receive, and track transactional and marketing emails via Mailgun. Manage sending domains, tracking settings, inbound routes, suppressions, allowlists, mailing lists, reusable templates, current logs and metrics, legacy events and stats, stored messages, validation, and domain webhook notifications.

Mailsso

Validate and verify email addresses for deliverability and quality. Check individual emails or bulk-validate lists for format validity, domain and MX record status, catch-all policies, disposable address detection, and blocklist presence. Returns deliverability scores and classifications to help maintain clean email lists.

Mailsoftly

Create, manage, and search contacts for email marketing campaigns. Organize contacts into lists, apply tags, and send email campaigns with attachments. Create and manage contact lists, add contacts individually or in bulk, and retrieve contact details. Create email drafts, check draft status, and send campaigns. Supports custom contact fields, contact segmentation, and tag-based categorization.

Facebook Messenger

Send and receive messages between Facebook Pages and users through Messenger. Create rich message templates including carousels, buttons, receipts, and media. Manage Messenger profile settings such as greeting text, persistent menus, get started buttons, and ice breakers. Retrieve user profile information. Display typing indicators and read receipts. Handle conversation handover between bots and live agents. Link Messenger users to external accounts. Subscribe to real-time webhook events for messages, postbacks, referrals, reactions, deliveries, and read receipts. Supports a 24-hour messaging window with message tags for follow-up communications.

Miro

Create, manage, and organize collaborative whiteboard boards. Add and update board items including sticky notes, shapes, cards, text, images, documents, embeds, and frames. Connect items with configurable connectors, group items together, and categorize with tags. Share boards and manage board members with role-based permissions. Create mind maps and flowcharts (experimental). Subscribe to webhooks for board item change notifications. Enterprise features include project management, organization and team administration, audit logs, data classification, eDiscovery, and SCIM user provisioning.

Missive

Manage collaborative team conversations across email, SMS, WhatsApp, Facebook Messenger, Instagram, live chat, and custom channels in a shared inbox. Browse, filter, and retrieve conversations by mailbox, team, label, or contact. Send messages and drafts with attachments across all supported channels, including scheduled sends and WhatsApp templates. Inject rich posts with Markdown and structured attachments into conversations to surface external system data. Manage conversation state by closing, reopening, assigning, labeling, and merging conversations. Create, update, search, and sync contacts with rich profile data including custom fields and organization memberships. Manage shared labels with hierarchy, color coding, and visibility controls. Create and manage tasks with states, due dates, assignees, and subtasks. Manage teams, canned response templates, and contact books. Generate asynchronous analytics reports filtered by team, users, labels, and account types. Receive real-time webhook notifications for incoming emails, SMS, WhatsApp, Messenger, and chat messages, as well as new comments.

Mixmax

Send, track, and manage emails through Gmail. Create and manage automated email sequences (campaigns) with personalized variables, add or remove recipients from sequences, and monitor engagement. Manage reusable email templates, schedule meetings via appointment links, and access poll and Q&A results embedded in emails. Track email activity including opens, clicks, replies, and downloads via a live feed. Create insights reports for email analytics. Configure webhook rules triggered by real-time events such as email sent, opened, clicked, or meeting confirmed. Manage contacts and contact groups, handle unsubscribe lists, and integrate with Salesforce to search, create, and update accounts, contacts, leads, opportunities, and tasks. Manage teams and user preferences within a workspace.

Moosend

Create, send, and manage email marketing campaigns including regular, RSS, A/B testing, and transactional emails. Manage mailing lists, subscribers, custom fields, and segments. Add or remove subscribers, unsubscribe users, and bulk remove contacts. Create audience segments with criteria for targeted campaigns. Send transactional emails with dynamic personalized content. Retrieve campaign analytics including opens, clicks, complaints, and unsubscribes.

Msg 91

Send and manage multi-channel communications across SMS, Email, WhatsApp, Voice, and RCS. Generate, send, resend, and verify OTPs. Create and manage message templates with variable substitution. Launch multi-channel campaigns with scheduling, retry logic, and segment-based targeting. Manage contacts, phonebook fields, segments, and user events. Send WhatsApp interactive messages with buttons, lists, and product catalogs. Execute voice calls including text-to-speech, IVR flows, and click-to-call sessions. Send rich RCS messages with cards, carousels, suggested replies, and actions. Validate email addresses, verify domains, and track delivery reports. Manage subaccounts and retrieve messaging logs and analytics.

Mural

Create, manage, and collaborate on visual murals with shared canvases. Add and update canvas widgets including sticky notes, shapes, text boxes, images, arrows, areas, tables, and comments. Organize content with tags, run voting sessions, control timers, and manage private mode for facilitated workshops. Create and manage rooms, workspaces, and templates. Invite users and manage permissions at workspace, room, and mural levels. Search across murals, rooms, and templates. Export murals and duplicate content. Enterprise features include audit logs, eDiscovery, content ownership transfer, SCIM user provisioning, and reporting.

Mxtoolbox

Run DNS and email authentication lookups for domains and IP addresses, including MX, SPF, DKIM, DMARC, BIMI, MTA-STS, PTR, and TXT records. Check domain blacklist status and diagnose email deliverability issues. Create, update, delete, and query infrastructure monitors for blacklist, SMTP, HTTP, TCP, DNS, and mail flow health. Manage monitor tags for organizing and filtering monitors. Set up short-term Quickwatch monitors that auto-expire. Track API usage against plan limits. Receive callback notifications when monitored resources change status.

Neverbounce

Verify individual email addresses in real time and validate bulk email lists. Returns verification results including valid, invalid, disposable, catchall, or unknown statuses along with DNS flags and suggested corrections. Create and manage bulk verification jobs from direct input or remote CSV files, monitor job progress, download results, and receive webhook callbacks on job status changes. Perform free list analysis to estimate bounce rates, check account credit balances, and confirm proof-of-entry verification from the JavaScript widget.

Niftyimages

Create and manage dynamic, personalized images, countdown timers, and data-driven content for email marketing campaigns. Manage data stores by adding, retrieving, and deleting records to display real-time content. Update countdown timer target dates programmatically. Perform full CRUD operations on map locations for nearest-store detection. Retrieve image stats and impressions filtered by date range. Update Photoshop image layers with custom variables, fonts, and positioning. Manage widgets, list users, retrieve usage stats, and suspend users. Integrate dynamic image generation with ManyChat and ChatFuel chatbots.

Nozbe Teams

Create, read, update, and delete tasks and projects for team collaboration. Manage task attributes including assignments, due dates, recurrence, priority, tags, and time tracking. Add comments with Markdown text and file attachments to tasks. Organize projects with sections, member access controls, and color coding. Manage tags to categorize tasks across projects. Retrieve team member information and roles. Filter, sort, and select specific fields in query results.