Harmonic Connector for AI agents.
11 live capabilities
Research startups and investment data without leaving your chat.
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Why people use Harmonic
Harmonic Startup Discovery for Venture Capitalists
With the Harmonic MCP, you just tell your agent what you're looking for. It pulls the firmographics, funding history, and growth stats into your chat. You get a clean summary of the company's health without the manual copy-pasting.
What Vinkius changes
You get a research analyst that never sleeps.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 5,900+ Connectors
- Real-world use case 01
Finding a new investment thesis
A VC asks the agent to find all AI startups in the UK with 10-50 employees and then pulls their funding rounds to assess the market.
- Real-world use case 02
B2B Lead Enrichment
A sales rep gives a list of domains to the agent to find high-growth companies and their latest funding amounts for prioritized outreach.
- Real-world use case 03
Competitor Analysis
A corporate dev asks the agent to list recent news and traction signals for three main competitors to see who is currently winning.
Complete set · 11capabilities
The complete Harmonic capability set.
These are the exact actions your AI can choose when you ask it to work with Harmonic.
01—04
4 capabilities in this set.
Part of 11 available through Harmonic.
- 01 Capability
Get enrichment status
Check the status of a background enrichment request. Use this to see if your data is ready to use.
- 02 Capability
Search startups
Search for startups using filters like industry, location, and headcount. This is your primary capability for discovery.
- 03 Capability
Enrich company
Enrich a company with firmographics, funding, and social signals. Get a full profile of any domain in one go.
- 04 Capability
Enrich person
Pull professional history and social signals from a person's profile. It helps you understand a founder's background quickly.
05—08
4 capabilities in this set.
Part of 11 available through Harmonic.
- 05 Capability
Get company stats
Get growth and headcount statistics for a company. Use this to see if a target is actually scaling.
- 06 Capability
Get investor portfolio
Get the list of portfolio companies for an investor. This is perfect for mapping out an investor's current focus.
- 07 Capability
Get api profile
Get information about the current API user. Use this to check your account status and limits.
- 08 Capability
List company news
List recent news and press releases for a company. Keep up with recent headlines without manual searching.
09—11
3 capabilities in this set.
Part of 11 available through Harmonic.
- 09 Capability
List funding rounds
List funding rounds for a specific company. See exactly how much money was raised and by whom.
- 10 Capability
List traction signals
List social and web traction signals for a company. Use this to see how much buzz a startup is actually getting.
- 11 Capability
Search investors
Search for investment firms and angels. Find the right partners for your specific investment thesis.
Set up in minutes
One URL. Then ask Harmonic to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Harmonic from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it Harmonic, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Harmonic for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Harmonic URL.
- Step 03
Save and start
Save the connection and enable Harmonic in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"harmonic": {
"url": "https://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using Harmonic
Open Agent mode in chat and ask: "Using Harmonic, help me...". 11 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"harmonic": {
"url": "https://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using Harmonic
Ask Copilot: "Using Harmonic, help me...". 11 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"harmonic": {
"url": "https://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using Harmonic
Open Cascade and ask: "Using Harmonic, help me...". 11 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"harmonic": {
"url": "https://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using Harmonic
Ask Cline: "Using Harmonic, help me...". 11 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add harmonic --transport http "https://edge.vinkius.com/vk_preview_O5tKIhnHInYg8JOctp4byVDGglaoXhmQjE8xPPuX/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using Harmonic
Ask Claude: "Using Harmonic, show me...". 11 tools are ready
Where the request belongs
Work Harmonic can move forward.
This is for the people who spend their days digging through data to find the next big thing. It's for the VC who needs to move fast on a deal and the sales lead who needs to know if a target company is actually growing.
Venture Capital Analyst
Sourcing deals by asking the agent to find high-growth startups in specific niches.
B2B Sales Development Rep
Identifying high-growth targets and enriching them with funding data before reaching out.
Corporate Strategy Manager
Tracking competitor funding rounds and acquisition targets in real-time.
When one Connector is not enough
Carry the request into a workflow.
Combine Harmonic with the systems that finish the task.
View all recipesMCP Recipe for Investor Network Mapping
Investor portfolios mapped, your network connections surfaced, warm intro request sent , get into deals through your existing relationships
Connectors for Accelerator Alumni Tracking
Alumni funding rounds tracked, traction signals monitored, portfolio performance measured , prove your accelerator's value with real numbers
Connectors for Data-Driven LP Updates
Traction signals read, cap tables checked, LP update emails sent , your quarterly letter writes itself from real data
Connectors to Build Investor Pipeline Fast
Active investors identified, sector matches mapped, RSVP pipeline built , fill Demo Day with investors who actually write checks, not tourists
MCP Workflow for Building Co-Investor Syndicates
Co-investors identified by portfolio overlap, contacts found, relationships tracked , fill your Seed round with the right partners in days, not months
Scout Top Startups Before Demo Day via MCP
Every YC batch company scanned, traction signals ranked, top picks added to your pipeline , scout Demo Day before the crowd arrives
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
Browse ConnectorsCB Insights
Research emerging technologies, track venture capital deals, and analyze market trends with AI-powered business intelligence.
Mattermark
Startup and venture capital data via Mattermark. search companies, investors, and funding rounds.
Crunchbase
AI business intelligence: search companies, track funding, and analyze investments via agents.
DeckMatch
Match startup pitch decks with investors using AI that analyzes fit, tracks outreach, and surfaces the right funding connections.
Datanyze
Equip your AI agent to retrieve B2B lead intelligence, technographics, and company insights via the Datanyze API.
PitchBook
AI private market intelligence: research companies, deals, investors, and funds via agents.
Bring your own AI
Change the model, client or framework. Keep Harmonic connected.
-
Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
JetBrains -
Warp -
Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about Harmonic.
The practical details behind the request, access and result.
What can I do with the Harmonic MCP?
You can use it to find startups, research investors, and get detailed company data. It lets your AI agent pull firmographics, funding history, and growth stats for millions of companies.
Can I use Harmonic to find specific types of startups?
Yes, you can filter by industry, location, and headcount. It searches a database of over 35 million companies to find exactly what you're looking for.
How does the Harmonic MCP help with venture capital research?
It acts as a research assistant that can pull an investor's full portfolio and a startup's funding history instantly. This helps you map out the market much faster.
Can I get professional info on founders using Harmonic?
You can provide a LinkedIn URL, and the Connector will pull the person's career history and education. It's a great way to understand a team's background quickly.
Does the Harmonic MCP provide real-time news?
Yes, it can pull recent news and press releases for any company. This keeps you updated on competitor moves without you having to search for them.
Is the Harmonic MCP good for sales lead enrichment?
It's perfect for that. You can use it to identify high-growth companies and pull their funding status to see if they have the budget for your services.
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.
One connection away
Give your agent a direct line to Harmonic.
Connect Harmonic once. Keep it beside 5,900+ managed Connectors when the next task needs more.
Explore every Connector No credit card required · Free tier available