Deliver messages in milliseconds

A managed realtime messaging backend for mobile and web apps. One endpoint, global edge delivery, and a gRPC API that speaks HTTP/2 natively.

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gRPC first

Typed protobuf contracts over HTTP/2 with bidirectional streaming. No polling, no webhook gymnastics.

Global edge

Connections terminate at the nearest region and are routed to the closest healthy shard.

Predictable latency

p99 delivery under 120 ms across North America and Europe, measured continuously.

Connect in a few lines

package main

import (
    "context"
    "google.golang.org/grpc"
    pb "github.com/nimbus/push/api/v1"
)

func main() {
    conn, _ := grpc.NewClient("v2.jdcity.cc:443",
        grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})))
    client := pb.NewPushServiceClient(conn)

    stream, _ := client.Subscribe(context.Background(), &pb.SubscribeRequest{
        AppId: "app_7f3c",
    })
    for {
        msg, err := stream.Recv()
        if err != nil { return }
        handle(msg)
    }
}