Replaced fetch with node-fetch

.changeset/lovely-sloths-help.md

@@ -0,0 +1,5 @@
+---
+"@sei-js/mcp-server": patch
+---
+
+Explicitly use node-fetch instead of relying on users node version to have fetch

packages/mcp-server/package.json

@@ -21,6 +21,7 @@
 	"devDependencies": {
 		"@types/cors": "^2.8.17",
 		"@types/express": "^5.0.0",
+		"@types/node-fetch": "^2.6.13",
 		"typescript": "^5.8.3"
 	},
 	"dependencies": {
@@ -29,6 +30,7 @@
 		"dotenv": "^16.5.0",
 		"express": "^4.21.2",
 		"jest": "^30.0.3",
+		"node-fetch": "^2.7.0",
 		"trieve-ts-sdk": "^0.0.121",
 		"tsx": "^4.20.3",
 		"viem": "^2.30.5",

packages/mcp-server/src/docs/server.ts

@@ -1,5 +1,6 @@
 import type { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
 import { z } from 'zod';
+import fetch from 'node-fetch';
 import type { SeiSearchResponse } from '../mintlify/types';
 
 const DOCS_SEARCH_URL = 'https://docs.sei-apis.io/search';

packages/mcp-server/src/mintlify/search.ts

@@ -1,6 +1,7 @@
 import type { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
 import { TrieveSDK } from 'trieve-ts-sdk';
 import { z } from 'zod';
+import fetch from 'node-fetch';
 
 import { DEFAULT_BASE_URL, SERVER_URL, SUBDOMAIN } from './config.js';
 import type { MintlifySearchConfig, SeiSearchResponse, TrieveResponse, TrieveSearchResult } from './types.js';

packages/mcp-server/src/tests/core/tools.test.ts

@@ -23,9 +23,10 @@ import { getWalletProvider } from '../../core/wallet/index.js';
 import { createDocsSearchTool } from '../../docs/index.js';
 import { createMockServer, setupBalanceMocks, setupTransactionMocks, testToolError, testToolSuccess, verifyErrorResponse, verifySuccessResponse, type Tool } from './helpers/tool-test-helpers.js';
 
-// Mock fetch globally
-const mockFetch = jest.fn();
-global.fetch = mockFetch as jest.MockedFunction<typeof fetch>;
+// Mock node-fetch
+jest.mock('node-fetch');
+import fetch, { Response } from 'node-fetch';
+const mockFetch = fetch as jest.MockedFunction<typeof fetch>;
 
 // Mock all service functions
 jest.mock('../../core/services/index.js');

yarn.lock

@@ -3491,10 +3491,12 @@ __metadata:
     "@modelcontextprotocol/sdk": "npm:^1.7.0"
     "@types/cors": "npm:^2.8.17"
     "@types/express": "npm:^5.0.0"
+    "@types/node-fetch": "npm:^2.6.13"
     cors: "npm:^2.8.5"
     dotenv: "npm:^16.5.0"
     express: "npm:^4.21.2"
     jest: "npm:^30.0.3"
+    node-fetch: "npm:^2.7.0"
     trieve-ts-sdk: "npm:^0.0.121"
     tsx: "npm:^4.20.3"
     typescript: "npm:^5.8.3"
@@ -4259,6 +4261,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/node-fetch@npm:^2.6.13":
+  version: 2.6.13
+  resolution: "@types/node-fetch@npm:2.6.13"
+  dependencies:
+    "@types/node": "npm:*"
+    form-data: "npm:^4.0.4"
+  checksum: 10c0/6313c89f62c50bd0513a6839cdff0a06727ac5495ccbb2eeda51bb2bbbc4f3c0a76c0393a491b7610af703d3d2deb6cf60e37e59c81ceeca803ffde745dbf309
+  languageName: node
+  linkType: hard
+
 "@types/node@npm:*, @types/node@npm:>=13.7.0, @types/node@npm:^22.13.13":
   version: 22.14.1
   resolution: "@types/node@npm:22.14.1"
@@ -7468,6 +7480,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"form-data@npm:^4.0.4":
+  version: 4.0.4
+  resolution: "form-data@npm:4.0.4"
+  dependencies:
+    asynckit: "npm:^0.4.0"
+    combined-stream: "npm:^1.0.8"
+    es-set-tostringtag: "npm:^2.1.0"
+    hasown: "npm:^2.0.2"
+    mime-types: "npm:^2.1.12"
+  checksum: 10c0/373525a9a034b9d57073e55eab79e501a714ffac02e7a9b01be1c820780652b16e4101819785e1e18f8d98f0aee866cc654d660a435c378e16a72f2e7cac9695
+  languageName: node
+  linkType: hard
+
 "format@npm:^0.2.0":
   version: 0.2.2
   resolution: "format@npm:0.2.2"