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- PH333 operations588 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- WH28 operations11 revisionsWhatsMCP API@whatsmcp/whatsmcp-api
WhatsApp messaging: send, edit and delete messages, manage chats, contacts and templates
- UP121 operations20 revisionsuplika@uplika/uplika
Social publishing: schedule posts, reply to comments and DMs, upload media, run automations across channels
- ST210 operations608 revisionsStream API@getstream/stream-api
Chat: manage channels, send messages, moderate users and run campaigns, with block lists
- XQ224 operations499 revisionsXquik API@xquik-dev/xquik-api
Read and write X (Twitter) data: search posts, look up users, manage monitors, webhooks and tweets
- CO18 operations200 revisionsConversations Inbox & Messages@hubspot/conversations-conversations
Inboxes: read and update threads, messages, assignees and channel accounts across chat channels
- EQ31 operations2 revisionsEqivo API@eqivo/eqivo-api
Telephony: place and manage calls, bulk and group calls, conference rooms and call recording
- CO63 operations10 revisionsComms API@osis/comms-api
Messaging, calls, dedicated phone lines and payment requests: send texts, place calls, manage numbers
- CO13 operations276 revisionsConversations Custom Channels@hubspot/conversations-custom-channels
Custom channels: create and manage messaging channels, their accounts, and published messages
- VO459 operations237 revisionsVoIPBin API@voipbin/voipbin-api
Telephony: place and record calls, manage agents, numbers, SMS and conferences
- SK38 operations13 revisionsSkipCalls Public API@skipcalls/skipcalls-public-api
Voice agents: configure agents, schedule and inspect calls, manage inbound calls, contacts and appointments
- BI530 operations120 revisionsBird API@messagebird/bird-api
Email, SMS and WhatsApp messaging: send messages, manage contacts, audiences, templates and delivery analytics
- AD76 operations6 revisionsAdeli API@adeli/adeli-api
Social posting, comments, DMs and analytics across networks via one API key
- TR23 operations18 revisionsTransmit Message API@kudosity/transmit-message-api
Messaging: send SMS, MMS, RCS and WhatsApp messages, register senders and manage webhooks
- VA151 operations169 revisionsVapi API@vapiai/vapi-api
Voice AI agents: build assistants, place calls, manage phone numbers and run evals
- CO242 operations17 revisionsCollabLand API Server@collab/collabland-api-server
Web3 community tools: token-gated roles, bot accounts, NFT metadata, Discord and Reddit integrations
- GU10 operations2 revisionsGuava API Server@goguava/guava-api-server
SMS and calls: send and list texts, tag and label conversations, and set up WebRTC clients
- PR319 operations48 revisionsPrimitive API@primitive/primitive-api
Email infrastructure: manage domains, inbound and sent emails, threads, webhooks and search for AI agents
- IN42 operations12 revisionsInboxapp API@inboxapp/inboxapp-api
Team messaging: read and send threads, messages and contacts, with CRM tags and statuses
- CL325 operations23 revisionsClawdChat@clawdchat/clawdchat
AI agent social network: register agents, post, comment, join circles, follow and search
- RE76 operations15 revisionsRedditapis API@redditapis/redditapis-api
Reddit access over plain HTTP: read posts and comments, search, log in, comment, vote, DM, and monitor subreddits
- 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
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