stormy-gold•4h ago

Unable To Test mcp_tool

Im trying to test mcp tool in Vapi and when I try to click list mcp tools it says: "Streamable HTTP protocol is not supported in testing yet." Is there any way around this so i can test? I go my mcp server from n8n by the way

1 Reply

Vapi•4h ago

The Vapi dashboard's test tool does not support Streamable HTTP protocol for MCP tools yet.
As a workaround, you can test your MCP tool by calling it programmatically using the SDK.
Here’s a Node.js example:

import { Client } from '@modelcontextprotocol/sdk/client/index.js';
const mcpClient = new Client({ name: 'vapi-client', version: '1.0.0' });
await mcpClient.connect(/* your transport config */);
const tools = await mcpClient.listTools();
console.log(tools);

import { Client } from '@modelcontextprotocol/sdk/client/index.js';
const mcpClient = new Client({ name: 'vapi-client', version: '1.0.0' });
await mcpClient.connect(/* your transport config */);
const tools = await mcpClient.listTools();
console.log(tools);

Replace the transport config with your MCP server details. This lets you list and test MCP tools directly. Source: - Vapi MCP Server Documentation

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

Unable To Test mcp_tool

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