Developer Docs

AI Agent API

CryptoNinjaSwap exposes a global window.CryptoNinjaSwapAPI object that lets AI agents and external scripts control the swap interface.

// Set the swap chain
CryptoNinjaSwapAPI.setChain("from", 137);   // Polygon

// Set tokens
CryptoNinjaSwapAPI.setToken("from", "POL");
CryptoNinjaSwapAPI.setToken("to", "JPYC");

// Set amount
CryptoNinjaSwapAPI.setAmount(100);

// Connect wallet
await CryptoNinjaSwapAPI.connectWallet();

// Execute swap
CryptoNinjaSwapAPI.executeSwap();

// Read current state
const state = CryptoNinjaSwapAPI.getState();

Supported Chains

• Ethereum — Chain ID 1
• Base — Chain ID 8453
• BSC — Chain ID 56
• Arbitrum — Chain ID 42161
• Polygon — Chain ID 137
• Optimism — Chain ID 10
• Avalanche — Chain ID 43114

Swap Infrastructure

• Same-chain swaps: KyberSwap Aggregator API (no API key required)
• Cross-chain bridges: LiFi Protocol
• Fee: 0.5% — sent to 0x172B69F412f2F396B15eBCAA1d4705D3e3944575