Communications & messaging
719 APIs for SMS, voice, video calls, chat, notifications, or social communication.
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342 APIs added in the last 30 days.
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719- NH9 operations136 revisionsNHS Notify API@nhs/nhs-notify-api
Messaging: send single or batch notifications, track message status and read recipient responses
- TE1,556 operations366 revisionsTelnyx API@team-telnyx/telnyx-api-2
Telephony: place calls, send SMS and MMS, manage phone numbers, SIP trunks and conferences
- TW3 operations126 revisionsTwilio API definition for public-api voice@twilio/twilio-voice
Voice: create, list and fetch transcriptions of call recordings from a media URL or source ID
- TW1 operation304 revisionsTwilio - Chat@twilio/twilio-chat
Messaging: manage chat channels, including updating channel details within a service
- PH333 operations514 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- YO88 operations13 revisionsyourang.ai External API V1@yourang/yourang-ai-external-api-v1
AI voice agents: manage agents, contacts, campaigns, call history, WhatsApp messages and orders
- XQ219 operations424 revisionsXquik API@xquik-dev/xquik-api
Read and write X (Twitter) data: search posts, users, communities, trends and Spaces, plus post creation
- TW39 operations130 revisionsTwilio - Video@twilio/video-v1
Video rooms: create and manage rooms, participants, recordings, compositions and track subscriptions
- TW61 operations112 revisionsTwilio - Trusthub@twilio/trusthub-v1
Trust Hub compliance: register brands and campaigns, manage customer profiles, trust products and supporting documents
- SP172 operations175 revisionsspreed@nextcloud/spreed
Conversations: create rooms, chat, calls, polls, recording and live transcription
- GO55 operations11 revisionsGoogle Chat API@google/chat
Chat apps: manage spaces, members, messages, custom emojis, media uploads and user availability
- TW197 operations135 revisionsTwilio - Api@twilio/twilio-api
Communications: place and track calls, send messages, and manage phone numbers, SIP domains and recordings
- TW24 operations118 revisionsTwilio - Trunking@twilio/trunking-v1
Trunking: create and manage SIP trunks, origination URLs, credential lists, IP access control and phone numbers
- DI250 operations155 revisionsDiscord HTTP API (Preview)@discord/discord-http-api-preview
Chat, servers, users and bots: manage channels, guilds, webhooks, lobbies and stickers via the Discord v10 API
- FA31 operations7 revisionsFax API@sinch/fax-api
Fax: send and receive faxes, manage services, cover pages, email domains and templates
- TW25 operations116 revisionsTwilio - Proxy@twilio/proxy-v1
Proxy: manage services, phone number pools, sessions, participants and message interactions
- TR6 operations204 revisionsTransactional Single Send@hubspot/marketing-transactional-single-send
Email: send single transactional emails and manage SMTP API tokens and passwords
- TW47 operations193 revisionsTwilio - Numbers@twilio/twilio-numbers
Phone numbers: hosting, regulatory bundles, end users and short code applications
- TW54 operations232 revisionsTwilio - Ip_messaging@twilio/twilio-ip-messaging
Messaging: manage chat services, channels, members, messages, users, roles and webhooks
- SP209 operations181 revisionsspreed-full@nextcloud/spreed-full
Chat, video calls and breakout rooms: manage rooms, messages, polls, bots and recordings
- TW103 operations126 revisionsTwilio - Conversations@twilio/conversations-v1
Messaging: create conversations, manage participants, send messages and read delivery receipts
- TR121 operations130 revisionstraQ API@traptitech/traq-api
Chat: manage channels, messages, users, bots, webhooks, files and OAuth2 tokens
- AC1 operation2 revisionsAccount Notifications@citi/account-notifications
Corporate banking: subscribe to push notifications for account updates via webhooks in XML or JSON
- RE111 operations62 revisionsRetell SDK@retellai/retell-sdk
Voice AI agents: build and test call agents, phone numbers, chat, and knowledge bases
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