Messaging platform for SMS, WhatsApp, Viber, voice and USSD
CPaaS and SMS APIsMulti-channel agent platforms
Telerivet is a cloud messaging platform for SMS, WhatsApp, Viber, voice and USSD in 150+ countries, with APIs, an MCP server and an Android phone gateway.
Open-source notifications and agent channel routing
Multi-channel agent platformsOpen source and self-hosted
Open-source notification infrastructure whose Novu Connect puts AI agents on Slack, Teams, WhatsApp, Telegram, email, web chat and iMessage through Sendblue.
US SMS platform and API with RCS and beta iMessage
CPaaS and SMS APIsiMessage APIs
Mobile Text Alerts is a US SMS platform whose API sends SMS, MMS, RCS and, in closed beta, iMessage through one endpoint, with an MCP server for AI assistants.
Voice AI and CPaaS with SMS, WhatsApp and SIP APIs
CPaaS and SMS APIs
Cloud communications platform with voice, SIP, SMS, MMS, WhatsApp and RCS APIs, now built around voice AI agents. SMS and WhatsApp need its Enterprise plan in the US.
Open-source SMS API through your own Android phone and SIM
Open source and self-hostedSMS gateways
simhook turns an Android phone into an SMS API with signed webhooks, a TypeScript SDK and an MCP server, hosted at simhook.dev or self-hosted under AGPL-3.0.
Australian SMS, MMS and WhatsApp API with an MCP server
CPaaS and SMS APIs
Kudosity, formerly Burst SMS, is an Australian business messaging platform with SMS, MMS and WhatsApp APIs, RCS in beta, dedicated virtual numbers and an open-source MCP server.
DIDWW is a licensed carrier selling phone numbers in 90+ countries, SIP trunking, two-way P2P SMS and A2P SMS, managed through a REST API, a user panel and an MCP server.
Python MCP packages for reading and sending iMessage
MCP serversOpen source and self-hosted
Open-source Python packages for macOS: a read-only MCP server for Messages history, an add-on send tool, and a CLI that tunnels the server through a hosted broker.
JustCall is a cloud phone and messaging platform for sales and support teams whose API sends SMS, MMS, RCS and WhatsApp, with AI voice agents and an MCP server.
MCP server, CLI and terminal UI for Messages on macOS
MCP serversOpen source and self-hosted
Open-source npm package that lets AI agents on a Mac read, search, export and send iMessage and SMS through Messages.app, wait for replies and transcribe voice notes.
German SMS, RCS, WhatsApp and voice API with an MCP server
CPaaS and SMS APIs
seven (formerly sms77) is a Kiel, Germany SMS gateway with REST APIs for SMS, RCS, WhatsApp and text-to-speech calls, inbound numbers and a hosted MCP server.
Phone numbers, calls and SMS for AI agents over MCP
Multi-channel agent platforms
Skysay gives AI agents phone numbers in 100+ countries with voice calls, SMS, recordings and transcripts, managed through a REST API, a hosted MCP server or a workspace.
Australian business SMS with a REST API and MCP server
CPaaS and SMS APIs
Texto is an Australian business SMS service with a REST API and a hosted MCP server that lets AI agents send and read two-way SMS for 3 cents a message.
Remote or local MCP server for Messages on your Mac
MCP serversOpen source and self-hosted
Open-source MCP server that lets ChatGPT and Claude read, search and send iMessage and SMS from your Mac, locally over stdio or remotely through a self-hosted OAuth gateway.
RCS and SMS API with voice and per-account iMessage
CPaaS and SMS APIsRCS business messaging
Pinnacle is a YC-backed messaging API for RCS, SMS, MMS and voice, with iMessage onboarded per account, SDKs in three languages, a 95-tool MCP server and HIPAA support.
Indian CPaaS with voice, SMS, WhatsApp, RCS and AI agents
CPaaS and SMS APIsMulti-channel agent platforms
Exotel is a Bengaluru-based cloud telephony and CPaaS company with voice, SMS, WhatsApp and RCS APIs, AI voice and chat agents, a contact center and an MCP server.
Quo, formerly OpenPhone, is a business phone system for small teams with calls and texts on shared numbers, a public API that sends texts, webhooks and a hosted MCP server.
Voice and chat AI agents across phone, WhatsApp and SMS
Multi-channel agent platforms
ElevenAgents is ElevenLabs' platform for voice and chat AI agents that run on phone lines, WhatsApp, SMS, web and apps, using your own Twilio or SIP numbers.
RingCentral's RingEX cloud phone system comes with a developer platform whose SMS and MMS APIs send and receive texts from the account's business numbers.
Use your Mac's iMessage and Contacts inside ChatGPT
MCP serversOpen source and self-hosted
Open-source MCP connector with a hosted relay and a local Mac agent that lets ChatGPT search iMessage history and Contacts and send confirmed messages from your own Mac.
Claude Code MCP server for your Mac's iMessage history
MCP serversOpen source and self-hosted
Open-source, macOS-only MCP server for Claude Code that reads and searches Messages history, transcribes voice notes, exports chats to Obsidian and sends texts after a confirm step.
Pay-as-you-go CPaaS with AI agents on every channel
Apple Messages for Business providers
+2 more
Orbit by Devotel is a pay-as-you-go CPaaS with one API for SMS, RCS, WhatsApp, voice and email, plus built-in AI agents, a contact center and an MCP server.
Open-source Android SMS gateway with a free hosted plan
Open source and self-hostedSMS gateways
textbee is an MIT-licensed SMS gateway that turns Android phones into an SMS API with REST, signed webhooks and an MCP server, self-hosted or on its hosted plans.
Open-source SMS API that sends through your Android phones
Open source and self-hostedSMS gateways
Bridge is an open-source SMS and phone verification API that sends through Android phones you own, with signed webhooks, an MCP server and optional SMS provider fallback.
Hosted SMS gateway that sends from your own phone's SIM
SMS gateways
SMS8 is a hosted service that sends SMS and MMS through Android phones or iPhones you pair, with a REST API, OTP API, signed webhooks, GoHighLevel and an MCP server.
US RCS platform with a no-code builder, API and MCP server
CPaaS and SMS APIsRCS business messaging
nativeMsg is a US RCS for Business platform with a no-code campaign builder, an API and MCP server, verified branded agents and SMS or MMS fallback from an included 10DLC number.
Conversational AI platform for WhatsApp, RCS, SMS and voice
CPaaS and SMS APIsMulti-channel agent platforms
Gupshup is a conversational AI platform with AI agents, campaigns and a live agent console over WhatsApp, RCS, SMS, voice and Instagram, aimed at large consumer brands.
RCS conversation API for AI agents, with SMS fallback
RCS business messaging
Cadence is an RCS messaging API built for AI agents: agent-initiated conversations over Google RBM with automatic SMS fallback, typed replies, a TypeScript SDK and an MCP server.
MCP server to read, search and send iMessage and SMS
MCP serversOpen source and self-hosted
Open-source MCP server for macOS that lets agents in Claude Code, Codex or Claude Desktop read and search Messages, view photos and send texts or tapbacks behind a confirm flag.
Mac menu bar app relaying iMessage to webhooks, REST and MCP
Open source and self-hosted
iMessage Relay is an MIT-licensed macOS menu bar app that turns a Mac into an iMessage gateway with webhook events, a REST API and an MCP server, reachable through a Cloudflare Tunnel.
Python library, CLI and MCP server for iMessage on a Mac
Open source and self-hosted
imbridge is an Apache-2.0 Python library, CLI and MCP server that lets AI agents send, reply, react and receive iMessages through Messages on a Mac, with a send allowlist.
Open-source phone numbers, calls and SMS for AI agents
Multi-channel agent platformsOpen source and self-hosted
AgentLine is an MIT-licensed AI phone API that gives agents US and Canada numbers for voice calls and SMS, with a hosted voice agent, REST, MCP and a Python SDK.
Voice AI platform with SMS, RCS and branded iMessage agents
iMessage APIsMulti-channel agent platforms
Enterprise voice AI platform whose messaging stack runs the same agent over SMS, RCS, WhatsApp and branded iMessage, with media, tapbacks and voice memos.