Networks and contracts

Find Arc network details, MPPI contract addresses and trusted deployment profiles.

Network profiles

The released SDKs include trusted profiles for both Arc networks. Start on testnet. Select mainnet explicitly and keep its wallet login, balances, identity and private configuration separate. An SDK release or deployed contract does not establish that a particular provider is available.

Network	Chain ID	Selection
Arc testnet	5042002	CLI `--testnet`; Python `testnet=True`.
Arc mainnet	5042	CLI `--mainnet`; Python `testnet=False`.

The Python agent's built-in client defaults to testnet; the Python provider's Mppi.from_config defaults to mainnet. Set the network explicitly in both. An address received from a provider is not a trusted deployment profile.

Contract	Arc testnet	Arc mainnet
MPPI proxy · application entry point	`0x1C687e8df34F6B35b162AB42733D98478eDedFED`	`0xbDF7c950390316B6091b729F271371984B37deD7`
MPPI implementation · contract logic	`0xD5C3aD686Ea1550204411C0eE3da9Dd72261eDf8`	`0x6dE8b8cd1200ffD27C460929c8BF8437E129243b`
Governance timelock	`0xF20fd0D61655De46c5B5965b1B29C80A532f5233`	`0x228966CAA1f2b14b6f8d0a86baAB8493EC419D06`
USDC · six-decimal ERC-20 interface	`0x3600000000000000000000000000000000000000`	`0x3600000000000000000000000000000000000000`
ERC-8004 · identity registry	`0x8004A818BFB912233c491871b3d84c89A494BD9e`	`0x8004a169fb4a3325136eb29fa0ceb6d2e539a432`

Agents and agent providers connect to the proxy; they do not deploy MPPI contracts. The profiles pin runtime code, implementation and registry evidence. SDK setup verifies those pins and the chain ID. Governance and pause authority belong to the deployed contracts, not to the agent provider.

Connection	Testnet	Mainnet
Arc RPC	`https://rpc.testnet.arc.io`	`https://rpc.mainnet.arc.io`
Agent built-in RPC	`https://rpc.blockdaemon.testnet.arc.io`	`https://rpc.blockdaemon.mainnet.arc.io`

Use a trusted RPC that supports the SDK's canonical reads. Agent setup selects ARC_RPC_URL_TESTNET or ARC_RPC_URL_MAINNET when present. Provider setup selects an environment override with --rpc-env NAME; setting a variable alone does not select it. Keep credential-bearing URLs in the environment.