Communications & messaging
700 APIs for SMS, voice, video calls, chat, notifications, or social communication.
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322 APIs added in the last 30 days.
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699- BI529 operations98 revisionsBird API@messagebird/bird-api
Email, SMS and WhatsApp messaging: send messages, manage contacts, audiences, templates and delivery analytics
- XQ219 operations414 revisionsXquik API@xquik-dev/xquik-api
Read, search and write X (Twitter) data: tweets, users, communities, Spaces and trends
- TW1 operation145 revisionsTwilio - Messaging@twilio/twilio-messaging
Messaging: send typing indicators and look up WhatsApp Business Accounts for OTT channels
- ST209 operations592 revisionsStream API@getstream/stream-api
Chat: channels, messages, members, moderation blocklists and campaigns
- PH333 operations499 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- SP356 operations214 revisionsSpacebar Server@spacebarchat/spacebar-server
Chat platform: manage webhooks, user settings, channel attachments and avatar decorations
- OP58 operations6 revisionsOpenMail API@openmail/openmail-api
Email infrastructure: create inboxes, send and receive mail, manage threads and webhooks
- PR36 operations4 revisionsPrzypominamy.com SMS API@przypominamy/przypominamy-com-sms-api
Messaging: send SMS to one or many recipients, with templates, contacts, HLR lookups and webhooks
- FA6 operations2 revisionsFaxolution for Applications (Fax4A) REST API@retarus/faxolution-for-applications-fax4a-rest-api
Fax: send faxes and retrieve, delete status reports for sent fax jobs
- WE18 operations1 revisionWestFax Secure Fax API@westfax/westfax-secure-fax-api
Fax: send and track secure, HIPAA-compliant faxes, inbound and outbound, at enterprise volume
- NH9 operations113 revisionsNHS Notify API@nhs/nhs-notify-api
Messaging: send single or batch notifications, track message status and read recipient responses
- TW3 operations98 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
- TW15 operations110 revisionsTwilio - Notify@twilio/notify-v1
Messaging: send notifications and manage services, credentials and bindings
- TW7 operations202 revisionsTwilio - Pricing@twilio/twilio-pricing
Pricing: look up messaging, voice and phone number rates by country
- NO149 operations20 revisionsNovu API@novu/novu-api
Notifications: trigger events, manage subscribers, topics, workflows, messages and integrations
- DE155 operations21 revisionsDEPRECATED: Novu API. Use /openapi.{json,yaml} instead.@novu/deprecated-novu-api-use-openapi-json-yaml-instead
Notifications: trigger events, manage subscribers, workflows, topics, messages and integrations
- TW1 operation246 revisionsTwilio - Chat@twilio/twilio-chat
Messaging: manage chat channels, including updating channel details within a service
- VO44 operations52 revisionsVoice Logica API@voicelogica/voice-logica-api
Voice AI: place outbound AI calls, run campaigns, query calls, SMS and SIP trunks
- EM100 operations7 revisionsEmailEngine API@emailengine/emailengine-api
Email: manage accounts, folders and messages, send and queue mail, run deliverability tests
- KI48 operations7 revisionsKivra Sweden API@kivra/kivra-sweden-api
Messaging: send digital mail, forms, agreements and payment webhooks to Swedish users and companies
- OP83 operations91 revisionsOpen Tree Hole@opentreehole/open-tree-hole
Anonymous BBS: browse divisions and holes, post floors, manage tags, reports, subscriptions and bans
- SP172 operations134 revisionsspreed@nextcloud/spreed
Conversations: create rooms, chat, calls, polls, recording and live transcription
- AR32 operations5 revisionsArtil API@artil/artil-api
Agent inboxes, SMS numbers and Telegram bots: send messages, manage addresses and stream events
- TW61 operations85 revisionsTwilio - Trusthub@twilio/trusthub-v1
Trust Hub compliance: register brands and campaigns, manage customer profiles, trust products and supporting documents
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