Communications & messaging
778 APIs for SMS, voice, video calls, chat, notifications, or social communication.
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369 APIs added in the last 30 days.
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779- CO18 operations187 revisionsConversations Inbox & Messages@hubspot/conversations-conversations
Inboxes: read and update threads, messages, assignees and channel accounts across chat channels
- IN108 operations9 revisionsInvite Tracker API@invite-tracker/invite-tracker-api
Discord server management: guild settings, audit logs, analytics, giveaways and custom bot setup
- VO148 operations30 revisionsvolai REST API@volai/volai-rest-api
Voice and SMS: place calls, run AI voice agents, send SMS and buy phone numbers
- AG255 operations12 revisionsAgentiSend API@agentisend/agentisend-api
Transactional email: send messages, manage domains, webhooks and per-key budgets for AI agents
- X259 operations30 revisionsX API v2@x/x-api-v2
Social posts, DMs, live broadcasts, calls, communities and community notes, plus account activity streams
- PH333 operations581 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- AQ18 operations3 revisionsAqua API@aquavoice/aqua-api
Voice dictation and editing, stored sessions, and Avalon audio transcription with OpenAI-compatible routes
- BI529 operations117 revisionsBird API@messagebird/bird-api
Email, SMS and WhatsApp messaging: send messages, manage contacts, audiences, templates and delivery analytics
- CO864 operations37 revisionsConnexCS Control Panel API@connexcs/connexcs-control-panel-api
VoIP switching, routing, customers, invoices and DIDs: manage telephony accounts, rates and call flows
- YO90 operations14 revisionsyourang.ai External API V1@yourang/yourang-ai-external-api-v1
AI agents: manage voice agents, contacts, campaigns, call history and WhatsApp messages
- XQ224 operations496 revisionsXquik API@xquik-dev/xquik-api
X data API: search and read posts, users, communities and Spaces, and post tweets
- SK255 operations20 revisionsSkysay API@skysay/skysay-api
Voice and SMS: place calls, send texts, manage numbers, agents and campaigns
- TR6 operations238 revisionsTransactional Single Send@hubspot/marketing-transactional-single-send
Email: send single transactional emails and manage SMTP API tokens and passwords
- CO13 operations259 revisionsConversations Custom Channels@hubspot/conversations-custom-channels
Custom channels: create and manage messaging channels, their accounts, and published messages
- AR32 operations6 revisionsArtil API@artil/artil-api
Agent inboxes, SMS numbers and Telegram bots: send messages, manage addresses and stream events
- NO1,905 operations10 revisionsNotoq API@notoq/notoq-api
Discord server management: settings for levels, economy, security and tickets, plus analytics and team stats
- CA493 operations13 revisionsCarbon Voice API@carbonvoice/carbon-voice-api
Voice messaging: send and manage messages, conversations, contacts, and workspace membership
- BL53 operations22 revisionsBlotato API@blotato/blotato-api
Social media: schedule posts, publish videos, read analytics, DMs and comments
- AD70 operations17 revisionsAdeli API@tryadeli/adeli-api
Social media: publish posts, reply to comments, DMs and ads across networks
- QU120 operations38 revisionsQubrics APIRetired@sendmux/sendmux-api
Email infrastructure: manage mailboxes, domains, sending accounts, sender filters, webhooks and delivery logs
- VO44 operations59 revisionsVoice Logica API@voicelogica/voice-logica-api
Voice AI: place outbound AI calls, run campaigns, query calls, SMS and SIP trunks
- AN52 operations53 revisionsAndo Public API@ando/ando-public-api
Messaging workspace: manage conversations, messages, agents, calls, files, webhooks and history imports
- VO147 operations2 revisionsVoiceCheap API@voicecheap/voicecheap-api
Voice and video localization: transcribe, translate, dub, generate speech and subtitles, and manage projects
- VO459 operations236 revisionsVoIPBin API@voipbin/voipbin-api
Telephony: place and record calls, manage agents, numbers, SMS and conferences
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