Communications
Messaging, customer support and meeting applications. Reading information and sending messages have different effects and permissions.
Services are ordered by documented operations, attributed reports and current documentation. 116 services are classified here. Each card shows the interfaces a service offers; open it for access requirements and sources.
Categories · Tasks · Interfaces · How listings are checked
Blink
Frontline workforce communication platform with APIs for creating chats and connecting workplace applications.
communication · workforce · Communications
API · Documentation checked: 2026-10-10Plivo
Plivo provides a communications platform with an API for sending SMS messages.
Communications · Developer tools
API · Documentation checked: 2026-10-09PostStack
EU-hosted transactional email service with REST, SDK, SMTP, and MCP interfaces for sending and managing email.
Communications · Developer tools · Communications
API · Documentation checked: 2026-10-10Smaily
Smaily provides email marketing and automation services, including contact management.
marketing · Communications
API · Documentation checked: 2026-10-11Slack
Slack is a team messaging platform. The Slack Web API lets apps post messages to channels and other conversations.
team-chat · Communications
API · Documentation checked: 2026-10-13Mattermost
Mattermost is a messaging and collaboration platform. This documented API operation creates a post in an authorized channel on the caller’s Mattermost server.
Productivity and collaboration · Communications · operations · api
API · Documentation checked: 2026-10-10MillionVerifier
Email verification service with a real-time single-email verification API.
Developer tools · Communications · API
API · Documentation checked: 2026-10-09Telegram
Telegram Bot API verifies a bot token and returns basic information about that bot.
Communications · Developer tools · automation
API · Documentation checked: 2026-10-09SerwerSMS
SerwerSMS provides an HTTPS API for sending SMS messages.
sms · Communications · Communications · api
API · Documentation checked: 2026-10-10The SMS Works
The SMS Works provides an SMS API; the documented message-send operation accepts an authenticated JSON message request.
Communications · sms · api
API · Documentation checked: 2026-10-11Kit
Kit's API returns delivery and engagement statistics for an identified broadcast.
Communications · marketing · Developer tools
API · Documentation checked: 2026-10-09Courier
Send product notifications and transactional messages through Courier’s messaging API.
Communications · Developer tools
API · Documentation checked: 2026-10-09Mailmodo
Trigger a configured Mailmodo transactional campaign by API and send its email to a recipient.
Communications · Marketing Automation · API
API · Documentation checked: 2026-10-09Meirra
A digital-marketing and SaaS platform offering an email verification API with deliverability and risk results.
business · Communications · verification · api
API · Documentation checked: 2026-10-10NeverBounce
NeverBounce provides a single-email verification API for checking an address during a signup or other point-of-entry flow.
Communications · Developer tools
API · Documentation checked: 2026-10-09Mailosaur
Mailosaur lists the virtual SMTP servers available to an authenticated account.
Developer tools · Communications
API · Documentation checked: 2026-10-11Bland
Bland provides an enterprise voice AI platform for phone agents.
voice-ai · Developer tools · Communications
MCP · Documentation checked: 2026-10-09Snov.io
Retrieve aggregated performance statistics across Snov.io campaigns for the requested date range.
sales · Communications · analytics · Developer tools
API · Documentation checked: 2026-10-09Voximplant
Voximplant provides a communications platform and Management API for retrieving account information and managing communications resources.
Communications · telephony · api
API · Documentation checked: 2026-10-10Plunk
Plunk API lists project contacts with cursor-based pagination.
Communications · Marketing · API
API · Documentation checked: 2026-10-09SendFox
SendFox provides email marketing services for creators, including an API for managing contacts and mailing lists.
marketing · Communications
API · Documentation checked: 2026-10-09LINE
LINE is a messaging platform with a documented Messaging API for LINE Official Accounts.
Communications · Communications · api · Developer tools
API · Documentation checked: 2026-10-10BulkSMS
SMS messaging service with an API to retrieve sent and received messages.
Communications · Communications · API
API · Documentation checked: 2026-10-09Messente
A business messaging platform with an Omnichannel API for sending SMS, Viber, and WhatsApp messages.
Communications · sms · Communications · api
API · Documentation checked: 2026-10-10