Communications & messaging
610 APIs for SMS, voice, video calls, chat, notifications, or social communication.
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228 APIs added in the last 30 days.
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610- SM161 operations7 revisionsSMTPfast API@smtpfa/smtpfast-api
Transactional email: send messages, manage sending domains, webhooks, contacts and analytics
- CO100 operations19 revisionsCommsHarbor@commsharbor/commsharbor
Domain email: check SPF, DKIM, DMARC and MX records, manage mailboxes and aliases
- HU650 operations15 revisionsHUDL API@meet-align/hudl-api
Video meetings: manage rooms, recaps, transcripts, clips, polls and notetaker bots
- NE86 operations13 revisionsNetify Reseller Programme for BT Business Broadband, Agent API@netify/netify-reseller-programme-for-bt-business-broadband-agent-ap
Reseller routes for BT and O2 broadband, SD-WAN/SASE and MPLS research, pricing and commission estimates
- VO444 operations197 revisionsVoIPBin API@voipbin/voipbin-api
Telephony: place and record calls, run conferences, manage agents, numbers and SMS-style conversations
- PH333 operations423 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- CO189 operations20 revisionsCooper Email API@cooperemail/cooper-email-api
Email: create inboxes, send and search messages, manage threads, webhooks and domains
- HO191 operations11 revisionsHonkIO API@honkio/honkio-api
Canadian SMS messaging: send texts, provision numbers, manage CASL consent and opt-outs
- HI282 operations8 revisionsHive Developer API@hivepublish/hive-developer-api
Social media automation: DMs, multi-network publishing, unified inbox, contacts and analytics
- ST209 operations574 revisionsStream API@getstream/stream-api
Chat: channels, messages, members, moderation blocklists and campaigns
- CO13 operations136 revisionsConversations Custom Channels@hubspot/conversations-custom-channels
Custom channels: create and manage messaging channels, their accounts, and published messages
- TR6 operations159 revisionsTransactional Single Send@hubspot/marketing-transactional-single-send
Email: send single transactional messages and manage SMTP API tokens and passwords
- CO18 operations116 revisionsConversations Inbox & Messages@hubspot/conversations-conversations
Inboxes: read and update threads, messages, assignees and channel accounts across chat channels
- RE111 operations17 revisionsRecall.ai API@recall/recall-ai-api
Meetings: create bots to record, transcribe and fetch audio, video, participants and calendar events
- VO44 operations39 revisionsVoice Logica API@voicelogica/voice-logica-api
Voice AI: place outbound AI calls, run campaigns, query calls, SMS and SIP trunks
- SE890 operations22 revisionsSendSeven@sendseven/sendseven
Messaging: send and manage WhatsApp, SMS and email campaigns, conversations and contacts
- TO132 operations6 revisionsToneWow Database API@tonewow/tonewow-database-api
Backend for ToneWow: push notifications, banners, inbox, device tokens and payment processing
- SM5 operations176 revisionsSMS API@apideck-libraries/sms-api
SMS: send, list, update and delete text messages and their delivery status
- SA417 operations3 revisionsSalesMessage Public API@salesmessage/salesmessage-public-api
Messaging: send and receive SMS, manage contacts, tags, teams and conversations
- TR320 operations55 revisionsTrytrata API@trytrata/fastapi
Calls, recordings, rooms and notifications: manage voice call rooms, recordings, leads and transcripts
- VO112 operations84 revisionsVoiceBlender API@voiceblender/voiceblender-api
Voice calls: bridge SIP and WebRTC legs into rooms, manage trunks and registrations, stream events
- LI40 operations18 revisionsLiara Mail API Documentaion@liara-cloud/liara-mail-api-documentaion
Mail delivery: send and receive email, manage accounts, SMTP credentials, inbound rules and forwarding
- WA196 operations15 revisionsWAHA - WhatsApp HTTP API@devlike/waha-whatsapp-http-api
WhatsApp messaging: send texts, manage sessions, chats, groups, channels and contacts
- PR91 operations17 revisionsProvisioning API@sinch/provisioning-api
Messaging channels: manage WhatsApp, KakaoTalk and RCS senders, templates, webhooks and bundles
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