Harmonic MCP. Deep startup intelligence in your chat.
Harmonic gives your AI agent deep intelligence on companies and startups. Instantly enrich firmographics for any domain, track funding rounds, find specific investors, or search through millions of businesses using advanced filters. It’s market research data, delivered right into your chat window.
Give Claude and any AI agent real-world access
Provide deep company data, including funding rounds, social traction signals, and core firmographics for any domain.
Pull professional history and educational background details on an individual using a LinkedIn URL.
Filter through millions of startups or search for specific investment firms and angels to build target lists.
Retrieve current headcount statistics, social web traction signals, and recent company news.
List a company's entire funding history or examine an investor’s full list of portfolio companies.
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What AI agents can do with Harmonic: 11 Data Enrichment Tools
These tools let you perform advanced market research tasks like finding startup details, tracking investments, and enriching profiles using your AI agent.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Harmonic MCPEnrich Company
Adds comprehensive company details, including funding and social signals, for any given domain name.
Enrich Person
Gathers educational history and professional background information about a person...
Get Company Stats
Retrieves current headcount growth metrics and overall statistics for a specific...
Get Enrichment Status
Checks the status of background data requests to confirm when enrichment information...
Get Investor Portfolio
Lists all companies that a specific investment firm or angel has backed throughout...
Get Api Profile
Pulls basic information about the current API user account details.
List Company News
Retrieves recent press releases and news articles published by a company.
List Funding Rounds
Shows the complete list of funding rounds, including amounts and lead investors, for...
List Traction Signals
Lists key social media and web traffic signals that indicate a company's public...
Search Investors
Finds investment firms or angel investors based on criteria you provide.
Search Startups
Searches a massive database of startups using filters like industry, location, and...
Security and governance baked right in.
Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.
Choose How to Get Started
Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.
Build Your Own
Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.
- Import from OpenAPI, Swagger, or YAML specs
- Create Agent Skills with progressive disclosure
- Deploy to edge with MCPFusion framework
- Built in DLP, auth, and compliance on each call
- Real time usage dashboard and cost metering
- Publish to catalog or keep private
Make Your AI Do More
Start with Harmonic, then connect any of our 5,200+ other servers whenever your AI needs more. One click, no limits.
- Use this MCP plus 5,200+ others, all in one place
- Add new capabilities to your AI anytime you want
- Connections are secured and governed automatically
- Track usage and costs across all your servers
- Works with Claude, ChatGPT, Cursor, and more
- New servers added to the catalog weekly
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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Sifting through deal flow manually is exhausting.
Right now, doing basic market research means bouncing between company websites, Crunchbase reports, LinkedIn profiles, and news aggregators. You copy a domain name here, paste it there; you find an investor on one tab, then have to open five different tabs just to see their full portfolio history.
With this MCP, your agent manages the entire flow. You give the domain or the person's URL, and Harmonic pulls every piece of required data—the funding rounds, the team background, the current stats—and delivers it all in one clean response.
Get instant validation with the Harmonic MCP.
You don't waste time cross-referencing five different data points. You run `enrich_company` once, and you get firmographics, funding history, and social signals all grouped together for immediate analysis.
What changes is the speed. Instead of a multi-hour research project, you finish complex market due diligence in minutes.
What Harmonic MCP does for your AI
Need to vet a target company or find the next big investment? Harmonic lets you take control of startup intelligence and deal sourcing directly from any AI client. You'll stop manually compiling lists in spreadsheets. Instead, your agent acts like a dedicated Venture Analyst. You can instantly pull firmographic data on a domain, check a person’s professional background using just a LinkedIn URL, or track exactly where a company has raised money over time.
Need to scope out the competitive landscape? Search through millions of companies and filter by specific growth metrics. When you connect your Harmonic account via Vinkius, your agent can search for investor groups, pull up their full portfolio history, and even list recent news for due diligence—all in a single conversation.
019d75ae-4980-73eb-b2ca-f14ab4439460 How to set up Harmonic MCP
The bottom line is you get professional-grade market research and due diligence tools without leaving your chat interface.
Subscribe to this MCP and provide your Harmonic API Key in the Vinkius console.
Activate the connection within your preferred AI client (Claude, Cursor, etc.).
Ask your agent a question like, 'Find me all Series A rounds for companies in AI with over 100 employees.' The data appears immediately.
Who uses Harmonic MCP
Anyone who spends time researching markets or vetting potential partners needs this. It's for the person tired of copy-pasting data from ten different websites into a single pitch deck.
Quickly verify a startup’s funding history and check if an investor has backed similar companies before making a sourcing decision.
Automate lead qualification by checking target company growth stats and identifying high-growth verticals before setting up a call.
Maintain real-time oversight of competitor funding rounds or scout potential acquisition targets using advanced filters on market data.
Benefits of connecting Harmonic MCP
Instead of manually exporting company lists, you simply ask your agent to 'list funding rounds' for a target. The full history appears instantly.
You get immediate insight into market health by calling search_startups. Filter millions of companies by criteria like headcount growth or industry sector.
Vetting contacts is easy; just pass a LinkedIn URL and use the enrich_person tool to pull their education and career trajectory in seconds.
Due diligence gets faster. You can check recent news via list_company_news, track social traction with list_traction_signals, and see if they’ve raised money using list_funding_rounds.
Understand the competitive landscape by calling search_investors to find groups, then use get_investor_portfolio to see exactly who they back.
Harmonic MCP use cases
Vetting a Potential Deal
A VC needs to know if 'Acme Corp' is worth pursuing. The agent uses enrich_company for basic stats, then calls list_funding_rounds to see their capital structure, and finally runs get_investor_portfolio on key investors to check deal overlap.
Sales Target Identification
An AE is building a pipeline of ideal customers. They ask the agent to use search_startups, filtering for 'FinTech' in 'Austin' with 50-200 employees. The results provide instant, qualified leads.
Competitor Intelligence
A CDO needs a real-time overview of rivals. They ask the agent to list recent news for three competitors using list_company_news and then check their current growth metrics with get_company_stats.
Checking an Expert's Background
A researcher is meeting a speaker. They give the agent the person’s LinkedIn URL, and the agent uses enrich_person to pull up the full academic and career history instantly for prep.
Harmonic MCP tradeoffs
What to watch out for, and the recommended way to handle each one.
Using basic search engines
Searching Google for 'startup funding rounds' only yields news articles, forcing manual data extraction from multiple sources.
Use the list_funding_rounds tool to pull structured, verified financial data directly. Pair this with enrich_company for full context.
Relying on LinkedIn alone
Only checking a person's LinkedIn profile gives you career titles but nothing about their educational background or public speaking history.
Use the enrich_person tool. It combines professional data with deep social and academic signals, giving a fuller picture.
Guessing company size/status
Assuming a company's growth rate or employee count based on its website alone is often inaccurate or outdated.
Use get_company_stats to get verified, current headcount and growth metrics. This data changes fast.
When to use Harmonic MCP
You need this MCP if your job involves vetting companies, tracking investment activity, or building highly qualified lead lists. If you regularly ask: 'How did this company raise its last round?' or 'Who else did that investor back?', then Harmonic is essential. Don't use it just because you want general business data; the power comes from specific tools like list_funding_rounds and search_startups. If all you need is a simple keyword search (e.g., finding articles about a topic), a standard web search is fine. But if you need structured, verified intelligence on firms and people—like checking an investor's full portfolio via get_investor_portfolio or verifying a person’s credentials with enrich_person—you need Harmonic.
Frequently asked questions about Harmonic MCP
How does Harmonic MCP help with funding rounds? +
You use the list_funding_rounds tool to retrieve comprehensive details on a company's capital raises, including amounts and which investors led the round.
Can I find specific startup types using Harmonic? (search_startups) +
Yes. The search_startups tool lets you filter massive databases of companies by criteria like industry sector, location, or employee count.
What if I only have a person's name? Can Harmonic help me? +
The best results come from using the enrich_person tool with a LinkedIn URL. This ensures the agent can pull the most accurate professional and academic history.
Can I check if an investor has backed similar companies? (get_investor_portfolio) +
Absolutely. Use get_investor_portfolio to list every company that a specific investment firm or angel has funded, giving you visibility into their deal history.
Does Harmonic MCP provide real-time data? +
The platform provides up-to-date information. If background data needs refreshing, the get_enrichment_status tool lets you track that request until the data is ready for use.
Powerful workflows you can unlock today
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Every YC batch company scanned, traction signals ranked, top picks added to your pipeline , scout Demo Day before the crowd arrives