Set default signature type to 2 for supporting proxy contract

Author: Royal-lobster

.changeset/tiny-suns-share.md

@@ -0,0 +1,5 @@
+---
+"@iqai/mcp-polymarket": patch
+---
+
+Makes default signature type to 2 for supporting proxy contract

src/script.ts

@@ -0,0 +1,53 @@
+#!/usr/bin/env node
+
+import { tradeApi } from "./services/trading.js";
+
+/**
+ * Script to place a market order on Polymarket
+ *
+ * This script demonstrates how to place a BUY market order
+ * with specific parameters.
+ */
+async function placeMarketOrder() {
+	try {
+		console.log("🚀 Placing market order...");
+
+		// Market order parameters
+		const params = {
+			side: "BUY" as const,
+			tokenId:
+				"60487116984468020978247225474488676749601001829886755968952521846780452448915",
+			amount: 1, // For BUY orders, this is the dollar amount ($USD) to spend
+		};
+
+		console.log("📋 Order parameters:", JSON.stringify(params, null, 2));
+
+		// Execute the market order
+		const result = await tradeApi.placeMarketOrder(params);
+
+		console.log("✅ Market order placed successfully!");
+		console.log("📊 Result:", JSON.stringify(result, null, 2));
+
+		return result;
+	} catch (error) {
+		console.error("❌ Error placing market order:", error);
+
+		// Check if it's an approval error
+		if (error && typeof error === "object" && "message" in error) {
+			console.error("Error details:", error.message);
+		}
+
+		throw error;
+	}
+}
+
+// Run the script
+placeMarketOrder()
+	.then(() => {
+		console.log("🎉 Script completed successfully");
+		process.exit(0);
+	})
+	.catch((error) => {
+		console.error("💥 Script failed:", error);
+		process.exit(1);
+	});

src/services/config.ts

@@ -27,7 +27,7 @@ export function getConfig(overrides: Partial<BaseConfig> = {}): BaseConfig {
 	const chainId = Number(overrides.chainId ?? process.env.CHAIN_ID ?? 137);
 
 	const signatureType = Number(
-		overrides.signatureType ?? process.env.SIGNATURE_TYPE ?? 0,
+		overrides.signatureType ?? process.env.SIGNATURE_TYPE ?? 2,
 	);
 
 	const rpcUrl =