Upgrade ts frameworks to Langchain v1 and vercel ai sdk v6

typescript/.changeset/poor-lines-sniff.md

@@ -0,0 +1,9 @@
+---
+"@coinbase/agentkit-model-context-protocol": minor
+"@coinbase/agentkit-vercel-ai-sdk": minor
+"@coinbase/agentkit-langchain": minor
+"create-onchain-agent": minor
+"@coinbase/agentkit": minor
+---
+
+Upgraded to zod v4, langchain v1 and vercel ai sdk v6

typescript/agentkit/README.md

@@ -142,12 +142,12 @@ _Prerequisites_:
 - Set `OPENAI_API_KEY` environment variable.
 
 ```bash
-npm install @langchain @langchain/langgraph @langchain/openai
+npm install langchain @langchain/langgraph @langchain/openai
 ```
 
 ```typescript
 import { getLangChainTools } from "@coinbase/agentkit-langchain";
-import { createReactAgent } from "@langchain/langgraph/prebuilt";
+import { createAgent } from "langchain";
 import { ChatOpenAI } from "@langchain/openai";
 
 const tools = await getLangChainTools(agentKit);
@@ -156,8 +156,8 @@ const llm = new ChatOpenAI({
   model: "gpt-4o-mini",
 });
 
-const agent = createReactAgent({
-  llm,
+const agent = createAgent({
+  model: llm,
   tools,
 });
 ```

typescript/agentkit/package.json

@@ -42,7 +42,7 @@
     "@across-protocol/app-sdk": "^0.2.0",
     "@alloralabs/allora-sdk": "^0.1.0",
     "@base-org/account": "^2.2.0",
-    "@coinbase/cdp-sdk": "^1.38.0",
+    "@coinbase/cdp-sdk": "^1.45.0",
     "@dtelecom/x402-client": "^0.1.3",
     "@ensofinance/sdk": "^2.0.6",
     "@jup-ag/api": "^6.0.39",
@@ -52,9 +52,9 @@
     "@solana/spl-token": "^0.4.12",
     "@solana/web3.js": "^1.98.1",
     "@vaultsfyi/sdk": "^2.1.9",
-    "@x402/evm": "^2.4.0",
-    "@x402/fetch": "^2.4.0",
-    "@x402/svm": "^2.4.0",
+    "@x402/evm": "^2.7.0",
+    "@x402/fetch": "^2.7.0",
+    "@x402/svm": "^2.7.0",
     "@zerodev/ecdsa-validator": "^5.4.5",
     "@zerodev/intent": "^0.0.24",
     "@zerodev/sdk": "^5.4.28",
@@ -71,8 +71,8 @@
     "reflect-metadata": "^0.2.2",
     "sushi": "6.2.1",
     "twitter-api-v2": "^1.18.2",
-    "viem": "2.38.3",
-    "zod": "^3.23.8"
+    "viem": "2.47.4",
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@types/jest": "^29.5.14",

typescript/agentkit/src/action-providers/across/acrossActionProvider.ts

@@ -127,7 +127,7 @@ export class AcrossActionProvider extends ActionProvider<EvmWalletProvider> {
         throw new Error(`No input tokens available on chain ${originChain.id}`);
       }
       const tokenInfo = inputTokens.find(
-        token => token.symbol.toUpperCase() === args.inputTokenSymbol.toUpperCase(),
+        token => token.symbol.toUpperCase() === (args.inputTokenSymbol ?? "ETH").toUpperCase(),
       );
       if (!tokenInfo) {
         throw new Error(
@@ -141,7 +141,7 @@ export class AcrossActionProvider extends ActionProvider<EvmWalletProvider> {
       const inputAmount = parseUnits(args.amount, decimals);
 
       // Check balance
-      const isNative = args.inputTokenSymbol.toUpperCase() === "ETH";
+      const isNative = (args.inputTokenSymbol ?? "ETH").toUpperCase() === "ETH";
       if (isNative) {
         // Check native ETH balance
         const ethBalance = await walletProvider.getBalance();
@@ -212,7 +212,7 @@ export class AcrossActionProvider extends ActionProvider<EvmWalletProvider> {
         ((Number(formattedInfo.inputAmount) - Number(formattedInfo.outputAmount)) /
           Number(formattedInfo.inputAmount)) *
         100;
-      if (actualSlippagePercentage > args.maxSplippage) {
+      if (actualSlippagePercentage > (args.maxSplippage ?? 1.5)) {
         throw new Error(
           `Output amount has high slippage of ${actualSlippagePercentage.toFixed(2)}%, which exceeds the maximum allowed slippage of ${args.maxSplippage}%. ` +
             `Input: ${formattedInfo.inputAmount} ${args.inputTokenSymbol}, Output: ${formattedInfo.outputAmount} ${args.inputTokenSymbol}`,

typescript/agentkit/src/action-providers/across/schemas.ts

@@ -11,21 +11,21 @@ export const BridgeTokenSchema = z
     inputTokenSymbol: z
       .string()
       .describe("The symbol of the token to bridge (e.g., 'ETH', 'WETH', 'USDC')")
-      .default("ETH"),
+      .nullable()
+      .transform(val => val ?? "ETH"),
     amount: z
       .string()
       .describe("The amount of tokens to bridge in whole units (e.g. 1.5 WETH, 10 USDC)"),
     recipient: z
       .string()
-      .optional()
+      .nullable()
       .describe("The recipient address on the destination chain (defaults to sender)"),
     maxSplippage: z
       .number()
-      .optional()
-      .describe("The maximum slippage percentage (e.g. 10 for 10%)")
-      .default(1.5),
+      .nullable()
+      .transform(val => val ?? 1.5)
+      .describe("The maximum slippage percentage (e.g. 10 for 10%)"),
   })
-  .strip()
   .describe("Instructions for bridging tokens across chains using Across Protocol");
 
 /**
@@ -35,11 +35,10 @@ export const CheckDepositStatusSchema = z
   .object({
     originChainId: z
       .string()
-      .optional()
+      .nullable()
       .describe("The chain ID of the origin chain (defaults to the current chain)"),
     depositId: z
       .string()
       .describe("The ID of the deposit to check (returned by the bridge deposit transaction)"),
   })
-  .strip()
   .describe("Instructions for checking the status of a deposit on Across Protocol");

typescript/agentkit/src/action-providers/allora/schemas.ts

@@ -5,7 +5,6 @@ import { z } from "zod";
  */
 export const GetAllTopicsSchema = z
   .object({})
-  .strip()
   .describe("Instructions for getting all topics from Allora Network");
 
 /**
@@ -15,7 +14,6 @@ export const GetInferenceByTopicIdSchema = z
   .object({
     topicId: z.number().describe("The ID of the topic to get inference data for"),
   })
-  .strip()
   .describe("Instructions for getting inference data from Allora Network by topic ID");
 
 /**
@@ -26,5 +24,4 @@ export const GetPriceInferenceSchema = z
     asset: z.string().describe("The token to get price inference for (e.g., 'BTC', 'ETH')"),
     timeframe: z.string().describe("The timeframe for the prediction (e.g., '8h', '24h')"),
   })
-  .strip()
   .describe("Instructions for getting price inference for a token/timeframe pair");

typescript/agentkit/src/action-providers/baseAccount/baseAccountActionProvider.test.ts

@@ -110,6 +110,8 @@ describe("UseBaseAccountSpendPermissionSchema", () => {
     const validInput = {
       baseAccount: MOCK_BASE_ACCOUNT,
       amount: MOCK_AMOUNT_USD,
+      tokenAddress: null,
+      permissionIndex: null,
     };
 
     const result = UseBaseAccountSpendPermissionSchema.safeParse(validInput);
@@ -155,6 +157,7 @@ describe("RevokeBaseAccountSpendPermissionSchema", () => {
   it("should successfully parse valid input without permission index", () => {
     const validInput = {
       baseAccount: MOCK_BASE_ACCOUNT,
+      permissionIndex: null,
     };
 
     const result = RevokeBaseAccountSpendPermissionSchema.safeParse(validInput);
@@ -273,6 +276,8 @@ describe("BaseAccountActionProvider", () => {
       const args = {
         baseAccount: MOCK_BASE_ACCOUNT,
         amount: MOCK_AMOUNT_USD,
+        tokenAddress: null,
+        permissionIndex: null,
       };
 
       const response = await actionProvider.spendFromBaseAccountPermission(mockWallet, args);
@@ -299,6 +304,8 @@ describe("BaseAccountActionProvider", () => {
       const args = {
         baseAccount: MOCK_BASE_ACCOUNT,
         amount: 10.5, // 10.5 USDC
+        tokenAddress: null,
+        permissionIndex: null,
       };
 
       const response = await actionProvider.spendFromBaseAccountPermission(mockWallet, args);
@@ -330,6 +337,8 @@ describe("BaseAccountActionProvider", () => {
       const args = {
         baseAccount: MOCK_BASE_ACCOUNT,
         amount: 10.5, // Trying to spend 10.5 USDC but only 1 available
+        tokenAddress: null,
+        permissionIndex: null,
       };
 
       const response = await actionProvider.spendFromBaseAccountPermission(mockWallet, args);
@@ -348,6 +357,7 @@ describe("BaseAccountActionProvider", () => {
 
       const args = {
         baseAccount: MOCK_BASE_ACCOUNT,
+        permissionIndex: null,
       };
 
       const response = await actionProvider.revokeBaseAccountSpendPermission(mockWallet, args);

typescript/agentkit/src/action-providers/baseAccount/schemas.ts

@@ -10,7 +10,6 @@ export const ListBaseAccountSpendPermissionsSchema = z
       .regex(/^0x[a-fA-F0-9]{40}$/, "Invalid Ethereum address format")
       .describe("The Base Account address to query if it has granted spend permissions"),
   })
-  .strip()
   .describe("Instructions for listing spend permissions for a Base Account");
 
 /**
@@ -25,27 +24,26 @@ export const UseBaseAccountSpendPermissionSchema = z
     amount: z
       .number()
       .positive()
-      .optional()
+      .nullable()
       .describe(
         "The amount to spend in whole units of the token (e.g. 4.6 for 4.6 tokens). If not provided, will withdraw the full remaining allowance",
       ),
     tokenAddress: z
       .string()
       .regex(/^0x[a-fA-F0-9]{40}$/, "Invalid Ethereum address format")
-      .optional()
+      .nullable()
       .describe(
         "The token contract address. If not provided, will use the first available permission token",
       ),
     permissionIndex: z
       .number()
       .int()
       .positive()
-      .optional()
+      .nullable()
       .describe(
         "The index of the permission to use (1-based). If not provided, the first permission will be used",
       ),
   })
-  .strip()
   .describe("Instructions for using a Base Account spend permission");
 
 /**
@@ -61,10 +59,9 @@ export const RevokeBaseAccountSpendPermissionSchema = z
       .number()
       .int()
       .positive()
-      .optional()
+      .nullable()
       .describe(
         "The index of the permission to revoke (1-based). If not provided, the first permission will be revoked",
       ),
   })
-  .strip()
   .describe("Instructions for revoking a Base Account spend permission");

typescript/agentkit/src/action-providers/basename/schemas.ts

@@ -6,7 +6,10 @@ import { z } from "zod";
 export const RegisterBasenameSchema = z
   .object({
     basename: z.string().describe("The Basename to assign to the agent"),
-    amount: z.string().default("0.002").describe("The amount of ETH to pay for registration"),
+    amount: z
+      .string()
+      .nullable()
+      .transform(val => val ?? "0.002")
+      .describe("The amount of ETH to pay for registration"),
   })
-  .strip()
   .describe("Instructions for registering a Basename");

typescript/agentkit/src/action-providers/cdp/cdpApiActionProvider.test.ts

@@ -115,8 +115,8 @@ describe("CDP API Action Provider", () => {
       expect(result.success).toBe(true);
     });
 
-    it("should allow missing assetId", () => {
-      const validInput = {};
+    it("should allow null assetId", () => {
+      const validInput = { assetId: null };
       const result = RequestFaucetFundsV2Schema.safeParse(validInput);
       expect(result.success).toBe(true);
     });

typescript/agentkit/src/action-providers/cdp/cdpEvmWalletActionProvider.test.ts

@@ -58,6 +58,7 @@ describe("CDP EVM Wallet Action Provider", () => {
   describe("listSpendPermissions", () => {
     const mockArgs = {
       smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
+      network: null,
     };
 
     beforeEach(() => {
@@ -110,7 +111,10 @@ describe("CDP EVM Wallet Action Provider", () => {
     });
 
     it("should validate input schema", () => {
-      const validInput = { smartAccountAddress: "0xabcd1234567890123456789012345678901234567890" };
+      const validInput = {
+        smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
+        network: null,
+      };
       const invalidInput = { wrongField: "0xabcd1234567890123456789012345678901234567890" };
 
       expect(() => ListSpendPermissionsSchema.parse(validInput)).not.toThrow();
@@ -122,6 +126,7 @@ describe("CDP EVM Wallet Action Provider", () => {
     const mockArgs = {
       smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
       value: "2500",
+      network: null,
     };
 
     beforeEach(() => {
@@ -285,6 +290,7 @@ describe("CDP EVM Wallet Action Provider", () => {
       const validInput = {
         smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
         value: "1000",
+        network: null,
       };
       const invalidInput = {
         smartAccountAddress: "not-an-address",
@@ -597,6 +603,7 @@ describe("CDP EVM Wallet Action Provider", () => {
         fromToken: "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
         toToken: "0xA0b86991c6218b36c1d19D4a2e9EB0cE3606eB48",
         fromAmount: "0.1",
+        slippageBps: null,
       };
       const result = SwapSchema.safeParse(validInput);
       expect(result.success).toBe(true);

typescript/agentkit/src/action-providers/cdp/cdpSmartWalletActionProvider.test.ts

@@ -63,6 +63,7 @@ describe("CDP Smart Wallet Action Provider", () => {
   describe("listSpendPermissions", () => {
     const mockArgs = {
       smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
+      network: null,
     };
 
     beforeEach(() => {
@@ -105,7 +106,10 @@ describe("CDP Smart Wallet Action Provider", () => {
     });
 
     it("should validate input schema", () => {
-      const validInput = { smartAccountAddress: "0xabcd1234567890123456789012345678901234567890" };
+      const validInput = {
+        smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
+        network: null,
+      };
       const invalidInput = { invalidField: "invalid" };
 
       expect(() => ListSpendPermissionsSchema.parse(validInput)).not.toThrow();
@@ -117,6 +121,7 @@ describe("CDP Smart Wallet Action Provider", () => {
     const mockArgs = {
       smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
       value: "1000",
+      network: null,
     };
 
     beforeEach(() => {
@@ -243,6 +248,7 @@ describe("CDP Smart Wallet Action Provider", () => {
       const validInput = {
         smartAccountAddress: "0xabcd1234567890123456789012345678901234567890",
         value: "1000",
+        network: null,
       };
       const invalidInput = {
         wrongField: "0xabcd1234567890123456789012345678901234567890",