Communications & messaging
780 APIs for SMS, voice, video calls, chat, notifications, or social communication.
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299 APIs added in the last 30 days.
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783- CO64 operations11 revisionsComms API@osis/comms-api
Messaging, calls and payment requests: send texts, place calls, manage dedicated lines
- VE29 operations6 revisionsVersemedical API@versemedical/versemedical-api
Pharmacy and fax webhooks: phone trees, Twilio SMS, Stripe, SendGrid and SES event callbacks, PSR creation
- CO13 operations318 revisionsConversations Custom Channels@hubspot/conversations-custom-channels
Custom channels: create and manage messaging channels, their accounts, and published messages
- TE1,552 operations854 revisionsTelnyx API@team-telnyx/telnyx-api-2
Telephony: place calls, send SMS and MMS, manage phone numbers, SIP trunks and conferences
- DI1,247 operations204 revisionsDialogBrain v2 API Gateway@dialogbrain/dialogbrain-v2-api-gateway
Inbox, channels, AI agents and integrations: manage conversations, agents, files and workspace data
- SH238 operations37 revisionsshipmail API@shipmail/shipmail-api
Email, calendar and booking: send messages, manage mailboxes, domains, newsletters and scheduling pages
- PH333 operations619 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- CA494 operations15 revisionsCarbon Voice API@carbonvoice/carbon-voice-api
Voice messaging: send and manage messages, conversations, contacts, folders and workspaces
- SK43 operations9 revisionsSkipcall Public API@skipcall/skipcall-public-api
Calls: access call history and recordings, manage contacts, sequences, tags and workspaces
- GR141 operations29 revisionsGroundmail API@groundmail/groundmail-api
Transactional email: send messages, manage domains, senders, mailboxes and automations
- SE919 operations34 revisionsSendSeven@sendseven/sendseven
Messaging: send and track WhatsApp, SMS, and email, with conversations, campaigns, and contacts
- X260 operations43 revisionsX API v2@x/x-api-v2
Posts, DMs, lists, communities and live broadcasts: read and publish X content, manage bots and notes
- AL121 operations9 revisionsAllo API@withallo/allo-api
Phone calls, SMS, faxes, contacts and CRM records for Allo phone lines, with webhooks
- SI21 operations3 revisionsSinch Compliance API - Brands@sinch/sinch-compliance-api-brands
Compliance: register US brands, manage brand orders, attachments and webhook callbacks
- SM5 operations493 revisionsSMS API@apideck-libraries/sms-api
SMS: send, list, update and delete text messages and their delivery status
- SU46 operations71 revisionsSurge@surgeapi/surge
Messaging: send SMS blasts and messages, manage contacts, phone numbers and campaigns
- MA166 operations12 revisionsMatrix Client-Server API@matrix/matrix-client-server-api
Chat: rooms, messages, media, devices, spaces and threads on Matrix homeservers
- SR60 operations11 revisionsSRIFT API@srift/srift-api
Local and public file-sharing daemon: create sessions, send files, relay chat and agent messages
- XQ223 operations513 revisionsXquik API@xquik-dev/xquik-api
Read, search and automate X (Twitter) data: posts, users, communities, Spaces and monitors
- AP68 operations6 revisionsapi.onesignal.com@onesignal/api-onesignal-com
Messaging: send push, email and SMS, manage templates, segments, users and subscriptions
- PR329 operations55 revisionsPrimitive API@primitive/primitive-api
Email infrastructure for AI agents: manage domains, send and receive emails, webhooks, and filters
- IZ77 operations17 revisionsiZap API@izap/izap-api
WhatsApp Business: manage chats, send messages and templates, contacts, menus and webhooks
- SK259 operations22 revisionsSkysay API@skysay/skysay-api
Telephony: place policy-gated calls, buy and manage phone numbers, send SMS and run voice agents
- TE1,552 operations126 revisionsTelnyx API@team-telnyx/telnyx-api
Telephony: place calls, send SMS and MMS, manage phone numbers, SIP trunks and porting
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