Communications & messaging
610 APIs for SMS, voice, video calls, chat, notifications, or social communication.
Collections
New this month
228 APIs added in the last 30 days.
The biggest APIs
The APIs with the most operations.
Most active
Most new revisions in the last 90 days.
All APIs
610- BI522 operations70 revisionsBird API@messagebird/bird-api
Messaging: send email, SMS and WhatsApp, manage templates, contacts and audiences
- PH333 operations427 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- NE26 operations8 revisionsNeuphonic API@neuphonic/fastapi
Text-to-speech: clone voices, create agents, validate IPA, and generate streamed speech
- AD7 operations6 revisionsAdder API@blinklabs-io/adder-api
Push notifications: store and manage FCM tokens, stream blockchain events, generate QR setup pages
- SE890 operations23 revisionsSendSeven@sendseven/sendseven
Messaging: send and manage WhatsApp, SMS and email campaigns, conversations and contacts
- HI285 operations10 revisionsHive Developer API@hivepublish/hive-developer-api
Social publishing and DM automation: post to 12 networks, manage contacts, inbox, and analytics
- FL437 operations52 revisionsFluxer API@fluxer/fluxer-api
Chat and VoIP: manage guilds, channels, messages, invites, webhooks and user profiles
- LI70 operations9 revisionsLinq Partner API@linqapp/linq-partner-api
iMessage: send and receive messages, manage chats, attachments, payments, and calls
- KA211 operations10 revisionsKaiCalls Public API@kaicalls/kaicalls-public-api
Voice agents: manage phone numbers, leads, campaigns, SMS, calls and meeting bookings for a business
- SP356 operations155 revisionsSpacebar Server@spacebarchat/spacebar-server
Chat platform: manage webhooks, user settings, channel attachments and avatar decorations
- AD60 operations10 revisionsAdeli API@tryadeli/adeli-api
Social media: publish posts, reply to comments, send DMs and run ads across networks
- 3G41 operations5 revisions3GPP Scout API@3gppscout/3gpp-scout-api
Telecom standards: search 3GPP specs, TDocs, meetings, RFCs and proposal comparisons
- TR320 operations56 revisionsTrytrata API@trytrata/fastapi
Calls, recordings, rooms and notifications: manage voice call rooms, recordings, leads and transcripts
- WA132 operations72 revisionsWavix APIs@wavix/wavix-apis
Communications: send SMS and MMS, place calls, manage numbers, SIP trunks and CDRs
- VO44 operations40 revisionsVoice Logica API@voicelogica/voice-logica-api
Voice AI: place outbound AI calls, run campaigns, query calls, SMS and SIP trunks
- HO192 operations12 revisionsHonkIO API@honkio/honkio-api
SMS and phone number API for Canada: send messages, provision numbers, manage CASL consent
- WO74 operations4 revisionsWormholescan API@wormholescan/wormholescan-api
Cross-chain messaging: look up VAAs, transactions, guardian sets, governor limits and token transfers
- GH482 operations4 revisionsGHL Voice App API@sympana/ghl-voice-app-api
Voice AI: place calls, manage agents and tools, and handle GoHighLevel installs and billing
- OP39 operations23 revisionsOpenMic v1 External API@openmicai/openmic-v1-external-api
Voice AI: manage agents, place outbound calls and SMS, run dialing campaigns, and manage contacts and phone numbers
- VO447 operations198 revisionsVoIPBin API@voipbin/voipbin-api
Cloud telephony: place and manage calls, conferences, SMS, agents and AI conversations
- VO112 operations85 revisionsVoiceBlender API@voiceblender/voiceblender-api
Voice calls: bridge SIP and WebRTC legs into rooms, manage trunks and registrations, stream events
- 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
Showing 1 to 24 of 610
Load more