Communications & messaging
785 APIs for SMS, voice, video calls, chat, notifications, or social communication.
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302 APIs added in the last 30 days.
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785- CO13 operations383 revisionsConversations Custom Channels@hubspot/conversations-custom-channels
Custom channels: create and manage messaging channels, their accounts, and published messages
- DI1,251 operations213 revisionsDialogBrain v2 API Gateway@dialogbrain/dialogbrain-v2-api-gateway
Inbox, channels, AI agents, workspace integrations and files for a multi-channel messaging platform
- CA306 operations26 revisionsCall2Me API@call2me/call2me-api
Voice AI: build agents that place and receive phone calls, with transcripts and recordings
- PH333 operations651 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- TE1,552 operations182 revisionsTelnyx API@team-telnyx/telnyx-api
Telephony: place calls, send SMS and MMS, manage phone numbers, SIP trunks and porting
- TE1,552 operations1,095 revisionsTelnyx API@team-telnyx/telnyx-api-2
Telephony: place calls, send SMS and MMS, manage phone numbers, SIP trunks and conferences
- JU219 operations4 revisionsJustEmails API@justemails/justemails-api
Email hosting and transactional sending: manage domains, mailboxes, inbox, sends, webhooks and suppressions
- FL444 operations69 revisionsFluxer API@fluxer/fluxer-api
Chat and VoIP: manage guilds, channels, messages, invites, webhooks, search and user themes
- KN118 operations125 revisionsKnock API@knocklabs/knock-api
Notifications: trigger workflows, manage users, subscriptions, preferences, audiences and channel data
- BI534 operations132 revisionsBird API@messagebird/bird-api
Email, SMS, WhatsApp and voice messaging: send messages, manage contacts, templates and analytics
- GI13 operations4 revisionsGiggy Speech API@giggy/giggy-speech-api
Text-to-speech and speech-to-text: generate speech, transcribe audio, stream voices and check credit balance
- XQ223 operations531 revisionsXquik API@xquik-dev/xquik-api
Read and write X (Twitter) data: search posts, look up users, manage monitors and webhooks
- PR336 operations65 revisionsPrimitive API@primitive/primitive-api
Email infrastructure: send and receive email, manage domains, webhooks, filters and threads
- AW72 operations7 revisionsAwrAIter REST v1@awraiter/awraiter-rest-v1
Telegram channel management: drafts, scheduling, stats, content plans and duplicate checks via MCP tools
- WH90 operations8 revisionsWhatSync API@whatsync/whatsync-api
WhatsApp messaging: read, search and send messages, manage groups, templates and campaigns
- TR323 operations77 revisionsTrytrata API@trytrata/trytrata-api
Voice agents, recordings, calls and notifications: manage rooms, call requests, transcripts, leads and webhooks
- CA92 operations7 revisionsCadence API@cadencercs/cadence-api
Messaging: open conversations, send replies, manage brands, agents, webhooks and consent
- UN233 operations9 revisionsUnitpost API@unitpost/unitpost-api
Email and SMS sending, contacts, campaigns, templates, domains and webhooks, all in one API
- HE217 operations2 revisionsHelios API@usehelios/helios-api
Campaigns: run voice, SMS and WhatsApp outreach, manage agents, calls and conversations
- AD76 operations7 revisionsAdeli API@adeli/adeli-api
Social posting, comments, DMs and analytics across networks via one API key
- VO44 operations61 revisionsVoice Logica API@voicelogica/voice-logica-api
Voice AI: place outbound AI calls, run campaigns, query calls, SMS and SIP trunks
- AD80 operations27 revisionsAdaptlyPost Public API@adaptlypost/adaptlypost-public-api
Social media: schedule posts across 14 platforms, read comments, DMs and reviews, get analytics
- FO76 operations9 revisionsForward Email API@forwardemail/forward-email-api
Email: manage domains, aliases, forwarding, outbound SMTP sends, contacts, calendars and messages
- SA385 operations38 revisionsSamva API@samva/samva-api
Email and WhatsApp messaging: send messages, manage contacts, conversations, campaigns and journeys
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