Basic Setup
import { PredexonSDK, createViemAdapter } from '@predexon/trade-sdk';
const sdk = new PredexonSDK({
apiKey: process.env.PREDEXON_API_KEY!,
wallet: createViemAdapter(walletClient),
});
solanaSigner instead of wallet:
import { PredexonSDK, createSolanaAdapter } from '@predexon/trade-sdk';
const sdk = new PredexonSDK({
apiKey: process.env.PREDEXON_API_KEY!,
solanaSigner: createSolanaAdapter({
signSolanaTransaction: async (base64Tx) => signedBase64,
signSolanaMessage: async (message) => signatureBase64,
}),
});
Configuration Reference
| Parameter | Type | Required | Default | Description |
|---|
apiKey | string | Yes | - | Your Predexon API key |
wallet | EvmWallet | No | - | EVM wallet for Polymarket |
solanaSigner | SolanaSigner | No | - | Solana signer for Kalshi |
Advanced Options
These options are rarely needed:
| Parameter | Type | Default | Description |
|---|
evmSignerOptions.chainId | number | 137 | EVM chain ID (Polygon) |
evmSignerOptions.enableRawAccess | boolean | false | Enable raw signer access |
timeouts.requestMs | number | 30000 | Request timeout in milliseconds |
const sdk = new PredexonSDK({
apiKey: process.env.PREDEXON_API_KEY!,
wallet: createViemAdapter(walletClient),
timeouts: {
requestMs: 60000,
},
});
Security
API key required for all SDK calls. The API key is sent via the x-api-key header on every request.
Base URL is hard-locked to https://trade.predexon.com for security. This cannot be overridden. See the Security page for details. Next Steps
