Bring Startup Intelligence
to CrewAI
Learn how to connect Harmonic to CrewAI 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 CrewAI?
When paired with CrewAI, Harmonic becomes a first-class tool in your multi-agent workflows. Each agent in the crew can call Harmonic tools autonomously, one agent queries data, another analyzes results, a third compiles reports, all orchestrated through Vinkius with zero configuration overhead.
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Multi-agent collaboration lets you decompose complex workflows into specialized roles, one agent researches, another analyzes, a third generates reports, each with access to MCP tools
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CrewAI's native MCP integration requires zero adapter code: pass Vinkius Edge URL directly in the
mcpsparameter and agents auto-discover every available tool at runtime - —
Built-in task delegation and shared memory mean agents can pass context between steps without manual state management, enabling multi-hop reasoning across tool calls
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Sequential and hierarchical crew patterns map naturally to real-world workflows: enumerate subdomains → analyze DNS history → check WHOIS records → compile findings into actionable reports
Harmonic in CrewAI
Harmonic and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Harmonic to CrewAI 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 CrewAI
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 CrewAI 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 CrewAI
Every tool call from CrewAI 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 CrewAI discover and connect to MCP tools?
CrewAI connects to MCP servers lazily. when the crew starts, each agent resolves its MCP URLs and fetches the tool catalog via the standard tools/list method. This means tools are always fresh and reflect the server's current capabilities. No tool schemas need to be hardcoded.
Can different agents in the same crew use different MCP servers?
Yes. Each agent has its own mcps list, so you can assign specific servers to specific roles. For example, a reconnaissance agent might use a domain intelligence server while an analysis agent uses a vulnerability database server.
What happens when an MCP tool call fails during a crew run?
CrewAI wraps tool failures as context for the agent. The LLM receives the error message and can decide to retry with different parameters, fall back to a different tool, or mark the task as partially complete. This resilience is critical for production workflows.
Can CrewAI agents call multiple MCP tools in parallel?
CrewAI agents execute tool calls sequentially within a single reasoning step. However, you can run multiple agents in parallel using process=Process.parallel, each calling different MCP tools concurrently. This is ideal for workflows where separate data sources need to be queried simultaneously.
Can I run CrewAI crews on a schedule (cron)?
Yes. CrewAI crews are standard Python scripts, so you can invoke them via cron, Airflow, Celery, or any task scheduler. The crew.kickoff() method runs synchronously by default, making it straightforward to integrate into existing pipelines.
MCP tools not discovered
Ensure the Edge URL is correct. CrewAI connects lazily when the crew starts. check console output.
Agent not using tools
Make the task description specific. Instead of "do something", say "Use the available tools to list contacts".
Timeout errors
CrewAI has a 10s connection timeout by default. Ensure your network can reach the Edge URL.
Rate limiting or 429 errors
Vinkius enforces per-token rate limits. Check your subscription tier and request quota in the dashboard. Upgrade if you need higher throughput.