Bring Startup Intelligence
to Google ADK
Learn how to connect Harmonic to Google ADK and start using 11 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for Subscribers
What is the Harmonic MCP Server?
Connect your Harmonic.ai account to any AI agent and take full control of your startup discovery and investment research through natural conversation.
What you can do
- Company Enrichment — Instantly retrieve firmographics, funding history, and social traction signals for any domain.
- Person Insights — Enrich professional profiles using LinkedIn URLs to get education and career history.
- Startup Discovery — Search through over 35 million companies using advanced filters like headcount growth and industry.
- Investor Research — Find investment firms and angels, and inspect their full portfolio history.
- Funding Monitoring — List and retrieve details for funding rounds, including amounts and lead investors.
- Enrichment Status — Track background data refresh requests to ensure you have the most up-to-date information.
How it works
1. Subscribe to this server
2. Enter your Harmonic API Key (found in the Console)
3. Start discovering startups from Claude, Cursor, or any MCP-compatible client
No more manual exporting of company lists. Your AI assistant acts as a dedicated Venture Analyst or Market Research Associate.
Who is this for?
- Venture Capitalists — instantly retrieve a startup's funding history and team signals during deal sourcing.
- Sales Teams — automate the enrichment of target accounts and identify high-growth companies.
- Corporate Devs — maintain a real-time overview of competitor funding and acquisition targets.
Built-in capabilities (11)
Enrich a company with firmographics, funding, and social signals
Enrich a person with professional history and social signals
Get information about the current API user
Get growth and headcount statistics for a company
Check the status of a background enrichment request
Get the list of portfolio companies for an investor
List recent news and press releases for a company
List funding rounds for a specific company
List social and web traction signals for a company
Search for investment firms and angels
Search for startups using filters like industry, location, and headcount
Why Google ADK?
Google ADK natively supports Harmonic as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 11 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.
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Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution
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Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Harmonic
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Production-ready features like session management, evaluation, and deployment come built-in. not bolted on
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Seamless integration with Google Cloud services means you can combine Harmonic tools with BigQuery, Vertex AI, and Cloud Functions
Harmonic in Google ADK
Harmonic and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Harmonic to Google ADK through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Harmonic in Google ADK
The Harmonic MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 11 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Google ADK only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Harmonic for Google ADK
Every tool call from Google ADK to the Harmonic MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
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 tool.
Can I search for companies based on specific criteria?
Yes! Use the search_startups tool. 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.
How does Google ADK connect to MCP servers?
Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.
Can ADK agents use multiple MCP servers?
Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.
Which Gemini models work best with MCP tools?
Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.
McpToolset not found
Update: pip install --upgrade google-adk