These addresses document the current Avalanche Fuji and Echo L1 testnet setup.
Use these addresses for development and verification only. Confirm current deployment state before any production or value-bearing integration.
Networks
| Chain | Chain ID | RPC | Avalanche blockchain ID |
|---|
| Fuji C-chain | 43113 | https://api.avax-test.network/ext/bc/C/rpc | 0x7fc93d85c6d62c5b2ac0b519c87010ea5294012d1e407030d6acd0021cac10d5 |
| Echo L1 | 173750 | https://subnets.avax.network/echo/testnet/rpc | 0x1278d1be4b987e847be3465940eb5066c4604a7fbd6e086900823597d81af4c1 |
Core contracts
| Chain | AvalancheEscrowFactory | ICMBridgeFactory |
|---|
| Fuji C-chain | 0xF871B8D3417a4180680204dff900033761A5C9DD | 0xADa9734ba4075EE27EA7CA3aEb8E5a2006b4B87D |
| Echo L1 | 0x3f0e9fa48107f56205d68593b1af7948a7f9e41c | 0xacfa160f9f3acb6bebacc740b86d0ea320a0d6aa |
Tokens
| Chain | Token | Symbol | Decimals | Address |
|---|
| Fuji C-chain | USD Coin | USDC | 6 | 0x61a4E421721DBd10b49c36CFE8296FF0dE277B74 |
| Fuji C-chain | Wrapped Bitcoin | WBTC | 8 | 0x95e56Ef41A36eC996F51dBcd21785aa58F32815c |
| Echo L1 | Bridged USDC | USDC.e | 6 | 0x188381687be21fcf26e279b76f48dd4a018aaa8b |
| Echo L1 | Bridged WBTC | WBTC.e | 8 | 0xb2d658beb1a2d48749ac0a71b74eb3c1e326ad55 |
ICTT routes
| Direction | Token | Local transferrer | Destination transferrer | Gas limit |
|---|
| Fuji to Echo | USDC | 0xe3faad8f84a206f0a4be492f10a413dd38366bad | 0x188381687be21fcf26e279b76f48dd4a018aaa8b | 250000 |
| Fuji to Echo | WBTC | 0x1158b14442f91bbe75a6643ea19edc275a5bc82c | 0xb2d658beb1a2d48749ac0a71b74eb3c1e326ad55 | 250000 |
| Echo to Fuji | USDC.e | 0x188381687be21fcf26e279b76f48dd4a018aaa8b | 0xe3faad8f84a206f0a4be492f10a413dd38366bad | 250000 |
| Echo to Fuji | WBTC.e | 0xb2d658beb1a2d48749ac0a71b74eb3c1e326ad55 | 0x1158b14442f91bbe75a6643ea19edc275a5bc82c | 250000 |
Verification examples
Check a route:
cast call 0xADa9734ba4075EE27EA7CA3aEb8E5a2006b4B87D \
"getRoute(address,bytes32)(address,address,uint256,bool)" \
0x61a4E421721DBd10b49c36CFE8296FF0dE277B74 \
0x1278d1be4b987e847be3465940eb5066c4604a7fbd6e086900823597d81af4c1 \
--rpc-url https://api.avax-test.network/ext/bc/C/rpc
cast call 0xF871B8D3417a4180680204dff900033761A5C9DD \
"s_whitelistedTokens(address)(bool)" \
0x61a4E421721DBd10b49c36CFE8296FF0dE277B74 \
--rpc-url https://api.avax-test.network/ext/bc/C/rpc
Fuji to Echo message delivery requires an ICM relayer for the route. A route can be configured correctly and still not complete if message delivery infrastructure is not running.
