How to Use the Harmonic MCP in Vercel AI SDK

Q: What tools are available for tracking talent growth?

You use getcompanystats to fetch headcount trends and growth metrics. This gives your agent immediate access to hard hiring data, which you can render as live charts in your application.

Stream real-time startup intelligence and investor data directly into your Next.js UI using Vercel AI SDK and the Harmonic MCP Server.

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Works with every AI agent you already use

…and any MCP-compatible client

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Connect Harmonic MCP to Vercel AI SDK

Create your Vinkius account to connect Harmonic 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 Harmonic with Vercel AI SDK

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Stream live startup searches to your UI

The `search_startups` tool lets your Vercel AI SDK agent query thousands of early-stage companies based on headcount, industry, and location. Instead of making your users stare at a blank loading screen, this MCP Server feeds raw search results directly into your frontend components as they arrive. You build a cleaner interface because the Vercel AI SDK streams the exact Harmonic company profiles you need without lagging. It runs inside Edge Functions, pulling fresh data on demand so your users get instant updates on high-growth targets.

Real-time enrichment with Vercel AI SDK

The `enrich_company` tool fetches deep firmographics, funding history, and social signals for any domain name your user types in. When combined with the Vercel AI SDK MCP integration, the resulting data structures feed straight into your React state, rendering detailed company profiles dynamically. You skip the boilerplate API glue code entirely. Your Vercel AI SDK app instantly displays employee growth trends via `get_company_stats` and lists recent press coverage with `list_company_news` while the LLM explains the competitive context in a parallel stream.

Instant investor portfolio mapping

The `get_investor_portfolio` tool extracts the full list of backed startups for any VC firm or angel investor. This capability allows your Vercel AI SDK client to map out competitive environments and reveal funding relationships on the fly. Your interface renders these investment networks step-by-step. By querying `list_funding_rounds` alongside the portfolio data, your Vercel AI SDK application builds an interactive, live-updating timeline of venture capital activity directly in the browser.

Setup guide

Set up Harmonic 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 Harmonic 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 Harmonic transactions",
});

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

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Harmonic. 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 Harmonic MCP in Vercel AI SDK

It feeds raw data straight to your frontend. The Vercel AI SDK processes tools like `enrich_company` as streamable UI elements, meaning your users see startup funding details render instantly without waiting for a full page reload.

Yes, the integration works perfectly in edge environments. You initialize the client on the edge, call `search_startups`, and stream the filtered startup targets directly to your React or Next.js layout.

You manage this by tracking the status of background requests. Use `get_enrichment_status` within your Vercel AI SDK route handlers to queue heavier enrichment tasks and keep your frontend responsive.

You use `get_company_stats` to fetch headcount trends and growth metrics. This gives your agent immediate access to hard hiring data, which you can render as live charts in your application.

Absolutely, your search queries and target company domains remain secure. The server processes all firmographics and social signals inside an isolated V8 sandbox, ensuring your private deal-flow queries are never stored or exposed to external parties.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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