Networks

Privacy on Avalanche spans two domains:

1. Avalanche Fuji C-Chain — where your dApp contracts, assets (paid in AVAX), and the local Inbox live.

2. COTI Testnet — where private computation runs via the MPC executor and the COTI-side Inbox.

The pages below list network parameters and deployed contract addresses for the current Fuji ↔ COTI Testnet pairing. Addresses can change after redeploys; treat @coti-io/pod-sdk / @coti-io/coti-contracts and your environment config as the live source of truth when building against a specific release.

Network	Chain ID	Role
Avalanche Fuji	43113	Host chain — dApp + Inbox (native token: AVAX)
COTI Testnet	7082400	Private execution — MPC executor + COTI Inbox

The shared CREATE3 Inbox address is the same on every supported PoD chain:

0x3b8B70819f27e0438cBcE7f31894f799da52648F

Quick links for Fuji builders

• RPC: https://api.avax-test.network/ext/bc/C/rpc

• Explorer: testnet.snowscan.xyz

• Solidity preset: PodUserFuji

• SDK constant: FUJI_DEFAULT_INBOX_ADDRESS

Start here if you need wallet + faucet + Hardhat/Foundry first: Getting started on Avalanche Fuji (Day 0).

For general COTI chain RPC and faucet details (not PoD-specific), see the top-level Networks section.