Contracts

Network

Chain ID   5042002
Name       Arc Testnet
RPC        https://rpc.testnet.arc.network
Explorer   https://testnet.arcscan.app
Gas        native USDC
Faucet     https://faucet.circle.com

Settlement asset is Circle USDC 6 decimals at 0x3600000000000000000000000000000000000000. Native gas is a different USDC (18 decimals). Do not mix them.

Addresses

Contract	Address
TrustGate	`0x52E17bC482d00776d73811680CbA9914e83E33CC`
AgentRegistry	`0x73d3cf7f2734C334927f991fe87D06d595d398b4`
TrustScoringPlaintext	`0xEb979Dc25396ba4be6cEA41EAfEa894C55772246`
USDC (ERC-20, 6 dec)	`0x3600000000000000000000000000000000000000`

Sources live in the TrustGate repo under contracts/. ABIs are exported from frontend/src/lib/abi/. TrustAttestationVerifier.sol is implemented. Deploy it per protocol (constructor: initial issuer). It is not a shared singleton on the table above.

Read a tier from another contract

interface ITrustScoring {
    function getTrustTierPlaintext(address account) external view returns (uint8);
    function hasScore(address account) external view returns (bool);
}

contract MyProtocol {
    ITrustScoring public immutable trust;

    constructor(address trustAddr) {
        trust = ITrustScoring(trustAddr);
    }

    modifier onlyHighTrust(address agent) {
        require(trust.hasScore(agent), "unscored");
        require(trust.getTrustTierPlaintext(agent) >= 2, "not high trust");
        _;
    }
}

Onchain values: 0 = LOW, 1 = MEDIUM, 2 = HIGH. HIGH_ELITE shares 2. Uncached or expired plaintext reads revert (TierUncached / ScoreExpired) — fail closed.

These three bands are the payment-routing map. They are not a recommended lending policy. For access control prefer a protocol-owned ladder plus attestations.

Register an agent

An address can only register itself.

await writeContract({
  address: "0x73d3cf7f2734C334927f991fe87D06d595d398b4",
  abi: agentRegistryAbi,
  functionName: "registerAgent",
  args: [connectedWallet, "ipfs://Qm..."], // must equal msg.sender
});

Anyone else reverts CallerMustBeAgent. The caller is recorded as the agent owner. Lifecycle after that:

Function	Who can call it
`deactivateAgent`	Agent owner
`updateMetadata`	Agent owner
`suspendAgent`	Contract owner only (safety valve)
`reactivateAgent`	Contract owner only

There is no transferOwnership on an agent, and the agent owner cannot suspend themselves or anyone else.

Claim USDC

Depositor deposit(amount) — USDC pulled into TrustGate.
Depositor setAllowance(agent, cap).
Agent claim(depositor, amount).
Routing:
- HIGH → transfer now
- MEDIUM → pending, 24h, then releaseClaim()
- LOW → pending escrow, depositor approveClaim() (or cancelClaim())

Scores older than 90 days fail closed. Reentrancy-guarded. Ownable2Step on all contracts. Only the oracle may write plaintext scores; agent owners cannot mint HIGH. The dashboard “Calculate Score” action calls setTrustScore and reverts unless the connected wallet is an authorized oracle. Partners read scores; they do not write them. Dashboard: trustgated.xyz/dashboard. Product writeup: Agent payments.

Verify an attestation onchain

See Gate with attestations for the EIP-712 types. After verify(...) succeeds, apply your ladder in your own module. The verifier never sets a borrow limit.

Start Here

Guides

Reference

Network

Addresses

Read a tier from another contract

Register an agent

Claim USDC

Verify an attestation onchain

​Network

​Addresses

​Read a tier from another contract

​Register an agent

​Claim USDC

​Verify an attestation onchain

Network

Addresses

Read a tier from another contract

Register an agent

Claim USDC

Verify an attestation onchain