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ICON documentation

ICON Network

When you switch between networks, make sure you use the correct network id. If the network id does not match, transaction will fail.

Private Devnet on AWS

Testnet for DApps

Please note that current testnet can be reset anytime, and you may experience unexpected downtime. We are working on preparing a more stable final test environment along with less-managed multiple playground networks.

   
Name Yeouido (여의도)
Node https://bicon.net.solidwallet.io
API endpoint https://bicon.net.solidwallet.io/api/v3
Network ID (nid) 3
Tracker https://bicon.tracker.solidwallet.io
Transaction fee on
SCORE audit off

To receive test ICX, please send email to testicx@icon.foundation with following information.

Testnet for Exchanges

Euljiro network is exclusively open to the exchange developers.

   
Name Euljiro (을지로)
Node https://test-ctz.solidwallet.io
API endpoint https://test-ctz.solidwallet.io/api/v3
Network ID (nid) 2
Tracker https://trackerdev.icon.foundation
Transaction fee on
SCORE audit on

To receive test ICX, please send email to testicx@icon.foundation with following information.

Mainnet

   
Name ICON Mainnet
Node https://ctz.solidwallet.io
API endpoint https://ctz.solidwallet.io/api/v3
Network ID (nid) 1
Tracker https://tracker.icon.foundation
Transaction fee on
SCORE audit on

Before you submit your SCORE to the ICON mainnet, you should test thoroughly on T-Bears and testnet. Note that SCORE audit is not enabled in testnet. Please make sure you understand the ICON audit policy and follow the guidelines.

If you have any questions about the audit process, please send email to audit@icon.foundation.

How to change network in ICONex Chrome extension