How do I connect Harmonic to my AI client?

You subscribe to the MCP on Vinkius and enter your Harmonic API key. Once connected, you can use it immediately in Claude, Cursor, Windsurf, or any compatible client.

What kind of company data can I get?

You can retrieve firmographics, funding history, headcount statistics, and social traction signals for any company.

Can I search for specific types of investors?

Yes, you can search for both investment firms and individual angel investors through your agent.

Does this work with LinkedIn profiles?

Yes, you can use LinkedIn URLs to enrich person profiles with professional and career history.

Where do I find my Harmonic API key?

Your API key is located in your Harmonic Console.

How do I find my Harmonic API Key?

Log in to your Harmonic account, go to the Console, and navigate to the API section. You will be able to generate and copy your unique apikey from there.

What happens if a company is not found in the database?

If a company is not found, Harmonic will return a 201 Enrichment Triggered status. This means a background update has been queued. You can check the status later using the get_enrichment_status capability.

Can I search for companies based on specific criteria?

Yes! Use the search_startups capability. You can provide a JSON string with filters like headcount, location, or industry to find companies that match your investment or sales criteria.

Is the integration secure?

Absolutely. The integration only accesses your data through your unique API key. Your credentials are encrypted and stored securely within the Vinkius Cloud infrastructure.

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Connect Harmonic to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Turn your AI agent into a professional venture analyst.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 11 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 11 available through Harmonic.

01
Enrich company
Enrich a company with firmographics, funding history, and social signals.
02
Get API profile
Get information about your current Harmonic API user profile.
03
Get company stats
Get growth and headcount statistics for a company.
04
Get investor portfolio
Get the list of portfolio companies for a specific investor.

Capability set02 / 03

05-08

4 capabilities in this set.

Part of 11 available through Harmonic.

05
List company news
List recent news and press releases for a specific company.
06
List funding rounds
List funding rounds for a specific company, including amounts and lead investors.
07
List traction signals
List social and web traction signals for a company.
08
Search startups
Search for startups using filters like industry, location, and headcount.

Capability set03 / 03

09-11

3 capabilities in this set.

Part of 11 available through Harmonic.

09
Get enrichment status
Check the status of a background enrichment request to see if your data is ready.
10
Search investors
Search for investment firms and angel investors.
11
Enrich person
Enrich a person using LinkedIn URLs to get their professional and social history.

Real work

What teams actually run

Deal Sourcing

A VC asks the agent to find startups in a specific industry with recent headcount growth.

Account Enrichment

A sales rep provides a domain to get full firmographics and funding details instantly.

Competitor Intelligence

A corporate dev professional tracks the latest funding rounds for rival companies.

Investor Mapping

A researcher identifies which angel investors are most active in a specific niche.

Automate a task

Put Harmonic to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Harmonic works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Harmonic to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

946ms average. Fast in production.

Harmonic is checked daily against the live service.

Daily averagePeak 1055ms

Oct 3Today

Fastest day: 820ms
Slowest day: 1055ms
14-day trend: Stable-2%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 11 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Harmonic, so you can see the experience inside your AI.

It does not authenticate your account with Harmonic. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Harmonic Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Harmonic capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "harmonic-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Harmonic in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Harmonic owners hand off.

This MCP is built for professionals who need real-time private company data without leaving their AI interface.

01
Venture Capitalists
Use it to pull funding history and team signals during deal sourcing.
02
Sales Teams
Automate account enrichment and find high-growth companies to target.
03
Corporate Development
Monitor competitor funding and identify potential acquisition targets.

FAQ

Questions Harmonic owners ask.

01
How do I connect Harmonic to my AI client?
You subscribe to the MCP on Vinkius and enter your Harmonic API key. Once connected, you can use it immediately in Claude, Cursor, Windsurf, or any compatible client.
02
What kind of company data can I get?
You can retrieve firmographics, funding history, headcount statistics, and social traction signals for any company.
03
Can I search for specific types of investors?
Yes, you can search for both investment firms and individual angel investors through your agent.
04
Does this work with LinkedIn profiles?
Yes, you can use LinkedIn URLs to enrich person profiles with professional and career history.
05
Where do I find my Harmonic API key?
Your API key is located in your Harmonic Console.
06
How do I find my Harmonic API Key?
Log in to your Harmonic account, go to the Console, and navigate to the API section. You will be able to generate and copy your unique apikey from there.
07
What happens if a company is not found in the database?
If a company is not found, Harmonic will return a 201 Enrichment Triggered status. This means a background update has been queued. You can check the status later using the get_enrichment_status capability.
08
Can I search for companies based on specific criteria?
Yes! Use the search_startups capability. You can provide a JSON string with filters like headcount, location, or industry to find companies that match your investment or sales criteria.
09
Is the integration secure?
Absolutely. The integration only accesses your data through your unique API key. Your credentials are encrypted and stored securely within the Vinkius Cloud infrastructure.

Explore

More in Sales Automation

Connect Harmonic to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Enrich company

Get API profile

Get company stats

Get investor portfolio

05-08

List company news

List funding rounds

List traction signals

Search startups

09-11

Get enrichment status

Search investors

Enrich person

What teams actually run

Deal Sourcing

Account Enrichment

Competitor Intelligence

Investor Mapping

Building your own app? The connector is yours to use.

Harmonic Connector

Claude Desktop

Venture Capitalists

Sales Teams

Corporate Development

How do I connect Harmonic to my AI client?

What kind of company data can I get?

Can I search for specific types of investors?

Does this work with LinkedIn profiles?

Where do I find my Harmonic API key?

How do I find my Harmonic API Key?

What happens if a company is not found in the database?

Can I search for companies based on specific criteria?

Is the integration secure?

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