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messaging-and-streaming
18 listings

Ably

Ably

Realtime messaging service with presence, persistence and guaranteed delivery. The free plan includes 3m messages per month, 100 peak connections, and 100 peak channels.
cloudamqp.com

cloudamqp.com

RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes in different AZ's
courier.com

courier.com

Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. The free plan includes 10,000 messages/mo.
engagespot.co

engagespot.co

Multi-channel notification infrastructure for developers with a prebuilt in-app inbox and no-code template editor. Free plan includes 10,000 messages/mo.
HiveMQ

HiveMQ

Connect your MQTT devices to the Cloud Native IoT Messaging Broker. Free to connect up to 100 devices (no credit card required) forever.
knock.app

knock.app
NotificationAPI.com

NotificationAPI.com

Add user notifications to any software in 5 minutes. The free plan includes 10,000 notifications/month + 100 SMS and Automated Calls.
Novu.co

Novu.co

The open-source notification infrastructure for developers. Simple components and APIs for managing all communication channels in one place: Email, SMS, Direct, In-App and Push. The free plan includes 30,000 notifications/month with 90 days of retention.
pusher.com

pusher.com

Realtime messaging service. Free for up to 100 simultaneous connections and 200,000 messages/day
scaledrone.com

scaledrone.com

Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day
synadia.com

synadia.com

[NATS.io](https://nats.io) as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, 50 active connections, and 5GB of data per month.
cloudkarafka.com

cloudkarafka.com

Free Shared Kafka cluster, up to 5 topics, 10MB data per topic and 28 days of data retention.
pubnub.com

pubnub.com

Swift, Kotlin, and React messaging at 1 million transactions each month. Transactions may contain multiple messages.
eyeson API

eyeson API

A video communication API service based on WebRTC (SFU, MCU) to build video platforms. Allows real-time data Injection, Video Layouts, Recordings, a fully featured hosted web UI (quickstart) or packages for custom UIs. Has a [free tier for developers](https://apiservice.eyeson.com/api-pricing) with 1000 meeting minutes a month.
webpushr

webpushr

Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messaging
httpSMS

httpSMS

Send and receive text messages using your Android phone as an SMS Gateway. Free to send and receive up to 200 messages per month.
EMQX Serverless

EMQX Serverless

Scalable and secure serverless MQTT broker you can get in seconds. 1M session minutes/month free forever (no credit card required).
Pocket Alert

Pocket Alert

Send push notifications to your iOS and Android devices. Effortlessly integrate via API or Webhooks and maintain full control over your alerts. Free plan: 50 messages per day to 1 device and 1 application.