Documentation Index
Fetch the complete documentation index at: https://docs.sigilcore.com/llms.txt
Use this file to discover all available pages before exploring further.
Overview
AgentPay SDK enables AI agents to hold and spend USD1 on EVM chains. @sigilcore/agent-hooks is natively compatible — no additional configuration needed.
When an AgentPay agent executes a USD1 transfer on Ethereum (chainId 1) or BNB Smart Chain (chainId 56), the wallet.transfer or wallet_sign action routes through your Sigil policy before the transaction is signed.
The layers are additive: AgentPay handles payment mechanics and key management. Sigil determines whether the agent is authorized to initiate the payment at all. AgentPay tells agents how to spend. Sigil tells agents what they’re allowed to do.
Usage
import { checkIntent, buildRejectionContext } from '@sigilcore/agent-hooks';
const config = {
apiKey: process.env.SIGIL_API_KEY!,
agentId: 'my-agentpay-agent',
};
// AgentPay initiates a USD1 transfer — Sigil evaluates policy first
const result = await checkIntent({
action: 'wallet.transfer',
chainId: 1, // Ethereum mainnet
to: '0xRecipientAddress',
amount: '1000000000000000000', // 1 USD1 in wei
txCommit: sha256(rawTx),
}, config);
if (result.decision !== 'APPROVED') {
// Block the AgentPay transfer — policy not satisfied
return buildRejectionContext(result, 'wallet.transfer');
}
// AgentPay proceeds with signing
Supported Chains
USD1 is pre-configured on:
| Chain | chainId | Contract Address |
|---|
| Ethereum | 1 | 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d |
| BNB Smart Chain | 56 | 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d |
Policy Configuration
To enforce limits on USD1 agent transfers, add an ## evm block to your warranty.md:
## evm
max_transaction_eth: 1.0
allowed_chains: 1, 56
allowed_actions: wallet.transfer, wallet_sign
consensus_threshold_eth: 0.5
consensus_require_hold: true