diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..65c3eba
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,26 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup Bun Runtime
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+          
+      - name: Install dependencies
+        run: bun install
+        
+      - name: Run tests
+        env:
+          NODE_ENV: test
+        run: bun test
+        
+      - name: Check formatting
+        run: bun run format --check
\ No newline at end of file
diff --git a/packages/mcp-dvm-bridge/src/config.ts b/packages/mcp-dvm-bridge/src/config.ts
index a5b7338..09c10ae 100644
--- a/packages/mcp-dvm-bridge/src/config.ts
+++ b/packages/mcp-dvm-bridge/src/config.ts
@@ -1,41 +1,96 @@
 import { parse } from 'yaml';
 import { join } from 'path';
 import { existsSync, readFileSync } from 'fs';
-import type { MCPServerConfig } from './types';
-
-interface NostrConfig {
-  privateKey: string;
-  relayUrls: string[];
-}
-
-interface MCPConfig {
-  name: string;
-  about: string;
-  clientName: string;
-  clientVersion: string;
-  servers: MCPServerConfig[];
-}
-
-interface WhitelistConfig {
-  allowedPubkeys: Set<string> | undefined;
-}
-
-interface AppConfig {
-  nostr: NostrConfig;
-  mcp: MCPConfig;
-  whitelist: WhitelistConfig;
-}
+import type { AppConfig, MCPServerConfig } from './types';
 
 const CONFIG_PATH = join(process.cwd(), 'config.yml');
 const HEX_KEYS_REGEX = /^(?:[0-9a-fA-F]{64})$/;
 
-if (!existsSync(CONFIG_PATH)) {
-  throw new Error(
-    'No config.yml file found. Please create one based on config.example.yml'
-  );
+const TEST_CONFIG: AppConfig = {
+  nostr: {
+    privateKey:
+      'd4d4d7aae7857054596c4c0976b22a73acac3a10d30bf56db35ee038bbf0dd44',
+    relayUrls: ['ws://localhost:3334'],
+  },
+  mcp: {
+    name: 'Test DVM MCP Bridge',
+    about: 'Test MCP-enabled DVM',
+    clientName: 'Test Client',
+    clientVersion: '1.0.0',
+    servers: [],
+  },
+  whitelist: {
+    allowedPubkeys: new Set(),
+  },
+};
+
+function validateRequiredField(value: any, fieldName: string): string {
+  if (!value) {
+    throw new Error(`Missing required config field: ${fieldName}`);
+  }
+  return value;
+}
+
+function getConfigValue(
+  value: string | undefined,
+  defaultValue: string
+): string {
+  return value || defaultValue;
+}
+
+function validateRelayUrls(urls: any): string[] {
+  if (!Array.isArray(urls) || urls.length === 0) {
+    throw new Error(
+      'At least one relay URL must be provided in nostr.relayUrls'
+    );
+  }
+  return urls.map((url: string) => {
+    try {
+      const trimmedUrl = url.trim();
+      new URL(trimmedUrl);
+      if (!trimmedUrl.startsWith('ws://') && !trimmedUrl.startsWith('wss://')) {
+        throw new Error(
+          `Relay URL must start with ws:// or wss://: ${trimmedUrl}`
+        );
+      }
+      return trimmedUrl;
+    } catch (error) {
+      throw new Error(`Invalid relay URL: ${url}`);
+    }
+  });
+}
+
+function validateMCPServers(servers: any): MCPServerConfig[] {
+  if (!Array.isArray(servers) || servers.length === 0) {
+    throw new Error(
+      'At least one MCP server must be configured in mcp.servers'
+    );
+  }
+  return servers.map((server: any, index: number) => {
+    if (!server.name || !server.command || !Array.isArray(server.args)) {
+      throw new Error(
+        `Invalid MCP server configuration at index ${index}. Required fields: name, command, args[]`
+      );
+    }
+    return {
+      name: server.name,
+      command: server.command,
+      args: server.args,
+    };
+  });
 }
 
 function loadConfig(): AppConfig {
+  if (process.env.NODE_ENV === 'test') {
+    return TEST_CONFIG;
+  }
+
+  if (!existsSync(CONFIG_PATH)) {
+    throw new Error(
+      'No config.yml file found. Please create one based on config.example.yml'
+    );
+  }
+
   try {
     const configFile = readFileSync(CONFIG_PATH, 'utf8');
     const rawConfig = parse(configFile);
@@ -83,63 +138,4 @@ function loadConfig(): AppConfig {
   }
 }
 
-function validateRequiredField(value: any, fieldName: string): string {
-  if (!value) {
-    throw new Error(`Missing required config field: ${fieldName}`);
-  }
-  return value;
-}
-
-function getConfigValue(
-  value: string | undefined,
-  defaultValue: string
-): string {
-  return value || defaultValue;
-}
-
-function validateRelayUrls(urls: any): string[] {
-  if (!Array.isArray(urls) || urls.length === 0) {
-    throw new Error(
-      'At least one relay URL must be provided in nostr.relayUrls'
-    );
-  }
-
-  return urls.map((url: string) => {
-    try {
-      const trimmedUrl = url.trim();
-      new URL(trimmedUrl);
-      if (!trimmedUrl.startsWith('ws://') && !trimmedUrl.startsWith('wss://')) {
-        throw new Error(
-          `Relay URL must start with ws:// or wss://: ${trimmedUrl}`
-        );
-      }
-      return trimmedUrl;
-    } catch (error) {
-      throw new Error(`Invalid relay URL: ${url}`);
-    }
-  });
-}
-
-function validateMCPServers(servers: any): MCPServerConfig[] {
-  if (!Array.isArray(servers) || servers.length === 0) {
-    throw new Error(
-      'At least one MCP server must be configured in mcp.servers'
-    );
-  }
-
-  return servers.map((server: any, index: number) => {
-    if (!server.name || !server.command || !Array.isArray(server.args)) {
-      throw new Error(
-        `Invalid MCP server configuration at index ${index}. Required fields: name, command, args[]`
-      );
-    }
-
-    return {
-      name: server.name,
-      command: server.command,
-      args: server.args,
-    };
-  });
-}
-
 export const CONFIG = loadConfig();
diff --git a/packages/mcp-dvm-bridge/src/types.ts b/packages/mcp-dvm-bridge/src/types.ts
index 79f37d3..4b11c33 100644
--- a/packages/mcp-dvm-bridge/src/types.ts
+++ b/packages/mcp-dvm-bridge/src/types.ts
@@ -1,3 +1,26 @@
+export interface NostrConfig {
+  privateKey: string;
+  relayUrls: string[];
+}
+
+export interface MCPConfig {
+  name: string;
+  about: string;
+  clientName: string;
+  clientVersion: string;
+  servers: MCPServerConfig[];
+}
+
+export interface WhitelistConfig {
+  allowedPubkeys: Set<string> | undefined;
+}
+
+export interface AppConfig {
+  nostr: NostrConfig;
+  mcp: MCPConfig;
+  whitelist: WhitelistConfig;
+}
+
 export interface MCPServerConfig {
   name: string;
   command: string;