x402
Agentic API
On-chain intelligence for autonomous AI agents.
Pay-per-call with x402. No API keys, no subscriptions.
$0.01
TX Simulation
Simulate transactions before execution. Get gas estimates, state changes, and MEV analysis.
/api/v1/agentic/simulate $0.01
Risk Score
Analyze contract risk with bytecode patterns, ERC-8004 verification, and on-chain signals.
/api/v1/agentic/risk/{address} $0.005
Defense Verify
Verify contract code hash against known patterns. Detect upgrades and mutations.
/api/v1/agentic/defense/verify $0.01
Execution Trace
Step-by-step execution trace with call tree analysis and failure diagnostics.
/api/v1/agentic/trace Quick Start
TypeScriptimport { createX402Client } from 'x402-fetch';
const client = createX402Client({
payerWallet: agentWallet,
network: 'base-mainnet'
});
// Simulate a swap before execution
const response = await client.fetch(
'https://api.atlasgraph.xyz/api/v1/agentic/simulate',
{
method: 'POST',
body: JSON.stringify({
chain_id: 8453,
from: '0xYourAgent...',
to: '0xUniswapRouter...',
data: '0x...',
value: '0'
})
}
);
const { data } = await response.json();
console.log('Success:', data.success);
console.log('Gas Used:', data.gas_used);
console.log('MEV Risk:', data.mev_analysis.frontrun_risk);How x402 Payment Works
1
Request API
Send request to any Agentic endpoint
2
402 Payment Required
Server responds with payment details (USDC on Base)
3
Auto-Pay & Receive
x402-fetch signs payment, retries, and returns data