How to Use the HubSpot Lead Creator MCP in Vercel AI SDK

Push leads directly into HubSpot from your AI-SDK interface. Stop manual entry and start capturing data as it happens.

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Connect HubSpot Lead Creator MCP to Vercel AI SDK

Create your Vinkius account to connect HubSpot Lead Creator to Vercel AI SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup HubSpot Lead Creator with Vercel AI SDK

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Real-time lead logging in your AI-SDK app

Your AI-SDK app can now pipe contact data straight into your CRM. When a user mentions a prospect, the `create_hubspot_lead` tool captures the details instantly. This keeps your lead database current without leaving the chat. Your users see the confirmation as the AI processes the input, keeping everything in sync.

Streamline lead ingestion via AI-SDK

The `create_hubspot_lead` tool acts as a direct bridge between your conversation stream and the HubSpot database. You pass the name, email, and company objects directly from your front-end logic. Since it's built for the AI-SDK, the tool response returns immediately to your UI. No more waiting for background tasks to finish or losing track of new contacts.

Direct HubSpot Lead Creator integration

This MCP server handles the API heavy lifting so your AI-SDK code stays clean. You define the input parameters, and the server executes the write request to the HubSpot endpoint. It handles the required email field validation on the server side. You just focus on building the chat interface while the tool manages the data transmission.

Setup guide

Set up HubSpot Lead Creator MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all HubSpot Lead Creator tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent HubSpot Lead Creator transactions",
});

console.log(text);
await mcpClient.close();

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by HubSpot CRM. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about HubSpot Lead Creator MCP in Vercel AI SDK

Install the necessary packages and initialize the client using the provided endpoint. From there, you map the `create_hubspot_lead` tool into your generation functions to start sending data.

Yes. The tool result is returned as part of the tool call output, which you can then render in your UI. It fits right into your existing stream logic.

This specific tool only creates new contacts. If you need to update existing records, you would need additional logic outside of this MCP server.

The server will return an error because the email field is mandatory. You should validate this on your client-side form before sending the request.

The server uses your provided API token to authenticate requests directly with HubSpot. It handles your contact data as a transient payload and does not store it locally.

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