// Japan Open Chain

The only Japan Open Chain
provider you’ll ever need

Build on Japan Open Chain with the fastest RPC Nodes, a comprehensive library of Web3 APIs, and the most performant blockchain ETL tools—all backed by enterprise-grade infrastructure.

Try free Contact Sales

// Trusted by the best

// Core Products

Battle tested infrastructure
for Japan Open Chain builders

Providing performance and reliability at scale for the world's top businesses and onchain projects. Join them.

500 billion+

API requests handled monthly, we can handle any volume you need.

99.99%

Uptime SLA ensures you're only paying while we're online.

2.5x

Faster API response times than our competitors.

24/7

Access to our support team, Discord community, and docs.

// Build

Everything you need to build on Japan Open Chain,
all under one account

// import the Quicknode SDK

import { Core } from '@quicknode/sdk'

// create a connection to your endpoint

const core = new Core({

endpointUrl: "https://docs-demo.quiknode.pro/",

})

// call the getBlockNumber method

core.client.getBlockNumber()

1 supported network

Mainnet

Reliable & scalable
RPC endpoints

Connect to Japan Open Chain with one line of code and get unparalleled latency, reliability, and scalability.

Try free Learn more

// Build

Learn more about Japan Open Chain,
and how to get started

Why build on Japan Open Chain?

Build on Japan Open Chain for a secure, regulatory-aligned blockchain infrastructure that bridges traditional business with Web3 innovation. JOC combines enterprise-grade reliability with transparent operations, creating an ideal foundation for both Japanese and international projects seeking seamless integration into Asia's digital future. Copy

Get Started

Joc Open Chain RPC Docs

// Webhook Received
Just now
{ "id": 27774258, "eventType": "transfer", "chain": "Japan Open Chain", "timestamp": 1744984842549, "address": "0x57cfd5d72a6a2f72", "amount": "39.697", "token": "AAVE", "timeAgo": "45 min ago" }
// Webhook Received
Just now
{ "id": 27774258, "eventType": "transfer", "chain": "Japan Open Chain", "timestamp": 1744984842549, "address": "0x57cfd5d72a6a2f72", "amount": "39.697", "token": "AAVE", "timeAgo": "45 min ago" }
// Webhook Received
Just now
{ "id": 27774258, "eventType": "transfer", "chain": "Japan Open Chain", "timestamp": 1744984842549, "address": "0x57cfd5d72a6a2f72", "amount": "39.697", "token": "AAVE", "timeAgo": "45 min ago" }

1 supported network

Mainnet

Real-time webhooks

No-code Web3 webhooks with guaranteed delivery and built in re-org handling.

Create a webhook Learn about webhooksLearn More

Want to stay updated?

Docs

Guides

Want to stay updated?

Docs

Guides

The only Japan Open Chain
provider you’ll ever need

Battle tested infrastructure
for Japan Open Chain builders

500 billion+

99.99%

2.5x

24/7

Everything you need to build on Japan Open Chain,
all under one account

Reliable & scalable
RPC endpoints

Learn more about Japan Open Chain,
and how to get started

Why build on Japan Open Chain?

Joc Open Chain RPC Docs

Real-time webhooks

Historical Backfills

Supercharge your dApp with
add-on services

Want to stay updated?

Docs

Guides

Want to stay updated?

Docs

Guides

The only Japan Open Chain provider you’ll ever need

Battle tested infrastructure for Japan Open Chain builders

500 billion+

99.99%

2.5x

24/7

Everything you need to build on Japan Open Chain, all under one account

Reliable & scalable RPC endpoints

Learn more about Japan Open Chain, and how to get started

Why build on Japan Open Chain?

Joc Open Chain RPC Docs

Real-time webhooks

Historical Backfills

Supercharge your dApp with add-on services

The only Japan Open Chain
provider you’ll ever need

Battle tested infrastructure
for Japan Open Chain builders

Everything you need to build on Japan Open Chain,
all under one account

Reliable & scalable
RPC endpoints

Learn more about Japan Open Chain,
and how to get started

Supercharge your dApp with
add-on services