Fanout
Your API stack. Now with realtime push.
Fanout launched on January 31, 2015 with 98 votes, #330 of 1,772 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 11 years on.
What it does
Fanout is a hybrid reverse proxy and message broker that helps you instantly push data to connected devices. Open technology lets you run Fanout in the cloud or on your own servers.
Deliver real-time data and low-latency WebSockets & pub/sub at the edge with Fastly. Scale chat, IoT, live apps and messaging with a self-managed infrastructure.
Scale AI systems, protect your content from bots, and run your edge with natural language — all on one programmable platform. Deliver sub-second real-time experiences for chat, live auctions, IoT, and more. Fastly Fanout manages WebSockets, HTTP, and TLS connections, bringing real-time communications and pub/sub patterns to the edge. Connect to any client from one backend, build MQTT applications, offload WebSockets, or even orchestrate events across the web - all at Fastly scale. Fanout can manage millions of concurrent, stateful WebSocket or HTTP streaming connections at the edge, letting you relay simple HTTP requests to your origin. This can significantly offload server demand, drive…from fastly.com
Does a similar job
all alternatives →- FRFanout – Reverse proxy to push real-time data to connected devices2017 · fanout.io · ▲84
Deliver real-time data and low-latency WebSockets & pub/sub at the edge with Fastly. Scale chat, IoT, live apps and messaging with a self-managed infrastructure.
Pushpin, a reverse proxy for real-time web services2016 · github.com · ▲49A proxy server for adding push to your API, used at the core of Fastly's Fanout service - fastly/pushpin
Pushpin – A new way to build realtime HTTP and WebSocket services2015 · pushpin.org · ▲114Reverse proxy for realtime APIs.
Manage web sockets from AWS Lambda using Fanout2017 · github.com · ▲56FaaS GRIP library for Python. Contribute to fanout/python-faas-grip development by creating an account on GitHub.
Pushpin – a proxy server for adding push to your API2021 · github.com · ▲7A proxy server for adding push to your API, used at the core of Fastly's Fanout service - fastly/pushpin
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