IP addresses break, dial keys instead

Modular networking stack for direct,
peer-to-peer connections between devices

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Fast connections.
Anywhere.
Forever.

Send data to any device running anywhere, big or small — cloud servers, tablets, or embedded systems. The core peer-to-peer technology is open source and built on open standards, so you're never locked in.

“Doubling the network speed halves our compute budget.”

Ari Lotter
Principal Engineer at Nous
Read the Case Study
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How are people using iroh?

Deploy, Monitor, Fix

All commits to iroh's main branch run through a growing set of simulations & tests.

iroh provides opt-in observability and network diagnostics — track connection health and throughput across all your devices and services.

Monitor your App
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Modular toolkit

Dozens of open-source, composable protocols built on top of iroh. Mix & match to get the feature set you need.

Start building.

Read the Docs

main.rs

// a program that creates two endpoints & sends a ping between them
use anyhow::Result;
use iroh::{Endpoint, protocol::Router};
use iroh_ping::Ping;

#[tokio::main]
async fn main() -> Result<()> {
    // create the receive side
    let recv_ep = Endpoint::builder().bind().await?;
    let recv_router = Router::builder(recv_ep.clone())
        .accept(iroh_ping::ALPN, Ping::new())
        .spawn();
    recv_ep.online().await;
    let addr = recv_router.endpoint().addr();

    // create a send side & send a ping
    let send_ep = Endpoint::builder().bind().await?;
    let send_pinger = Ping::new();
    let rtt = send_pinger.ping(&send_ep, addr).await?;
    println!("ping took: {rtt:?} to complete");

    Ok(())
}

From the Blog

iroh for payments

How Paycode used iroh to connect payment terminals to point of sale systems at highway toll booths, with no additional servers and full compliance.