Crunchbase MCP Server for LangChain 10 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect Crunchbase through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
async with MultiServerMCPClient({
"crunchbase": {
"transport": "streamable_http",
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
}
}) as client:
tools = client.get_tools()
agent = create_react_agent(
ChatOpenAI(model="gpt-4o"),
tools,
)
response = await agent.ainvoke({
"messages": [{
"role": "user",
"content": "Using Crunchbase, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* 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
About Crunchbase MCP Server
What you can do
Connect AI agents to the Crunchbase API for comprehensive business intelligence and startup ecosystem analysis:
LangChain's ecosystem of 500+ components combines seamlessly with Crunchbase through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
- Search companies by name to find startups, enterprises, and emerging tech firms
- Get complete company profiles with founding dates, headquarters, employee counts, and operating status
- Track funding rounds from Seed to Series D+ with amounts, dates, and investor syndicates
- Analyze acquisition history to understand M&A strategies and consolidation patterns
- Research investors including VC firms, angels, and corporate venture arms with full portfolios
- Find entrepreneurs and executives with detailed career histories and board memberships
- Monitor IPO activity with stock exchange details, ticker symbols, and offering data
- Map investment networks to identify co-investor relationships and deal flow patterns
The Crunchbase MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Crunchbase to LangChain via MCP
Follow these steps to integrate the Crunchbase MCP Server with LangChain.
Install dependencies
Run pip install langchain langchain-mcp-adapters langgraph langchain-openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save the code and run python agent.py
Explore tools
The agent discovers 10 tools from Crunchbase via MCP
Why Use LangChain with the Crunchbase MCP Server
LangChain provides unique advantages when paired with Crunchbase through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine Crunchbase MCP tools with 500+ LangChain components
Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
Memory and conversation persistence let agents maintain context across Crunchbase queries for multi-turn workflows
Crunchbase + LangChain Use Cases
Practical scenarios where LangChain combined with the Crunchbase MCP Server delivers measurable value.
RAG with live data: combine Crunchbase tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query Crunchbase, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain Crunchbase tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every Crunchbase tool call, measure latency, and optimize your agent's performance
Crunchbase MCP Tools for LangChain (10)
These 10 tools become available when you connect Crunchbase to LangChain via MCP:
get_acquisition_details
Use this after list_acquisitions to understand the full context of a specific M&A deal. Get complete details of a specific acquisition transaction
get_funding_round_details
), announced date, all participating investors with their investment roles (lead, participant), pre-money and post-money valuations if disclosed, number of investors, and associated press release links. Use this after list_funding_rounds to deep-dive into a specific funding event. Get detailed information about a specific funding round transaction
get_ipo_details
), ticker symbol, IPO date, share price at offering, number of shares offered, total capital raised from IPO, and post-IPO valuation. Use this for companies that have gone public to understand their transition from private to public markets. Get IPO (Initial Public Offering) details for a public organization
get_organization_details
Returns the entity overview with all known metadata Crunchbase has on file. Use this after search_organizations to get the full company profile including funding totals, acquisition history, and key personnel. Get complete profile and metadata for a specific organization from Crunchbase
get_person_details
Use this after search_people to get the full biography and career history of founders, investors, or executives. Get detailed professional profile for a specific person from Crunchbase
list_acquisitions
Shows companies acquired by this organization (if it's an acquirer) or acquisition events where this organization was the target. Each acquisition includes the acquired company name, acquisition date, price (if disclosed), acquisition type (acquisition, merger, acquihire, buyout), and acquiring company details. Use this to understand a company's growth-through-acquisition strategy or identify which companies a startup has absorbed. List all acquisitions made by or involving a specific organization
list_funding_rounds
Each funding round includes the stage (Seed, Angel, Series A, Series B, Series C, Series D+, Series Unknown, Convertible Note, Post-IPO Equity, Post-IPO Debt, Grant, Venture Round, Corporate Round), announced date, amount raised (in USD if available), lead investors, participating investors, and post-money valuation if disclosed. Use this to analyze a company's fundraising trajectory, total capital raised, and investor syndicate. List all funding rounds (Seed, Series A/B/C, IPO, etc.) for a specific organization
list_investments
Each investment entry includes the company invested in, funding round participated (Seed, Series A, etc.), investment date, co-investors in the same round, and whether this investor led the round. Use this to analyze a VC firm's investment thesis, portfolio diversity, recent deal activity, or find startups backed by a specific investor. List all investments made by a specific organization or investor
search_organizations
Returns organization names, short descriptions, operational status (operating, acquired, closed), headquarters locations, and industry categories. Use this as the first step to find a company before getting detailed funding, acquisition, or personnel data. The search returns up to 20 matching organizations ranked by relevance. Search for companies and organizations by name keyword in Crunchbase
search_people
Returns person names, current job titles, organizational affiliations, locations, and brief career summaries. Use this to find founders, CEOs, investors, or board members before getting their detailed profiles with investment history and professional relationships. Search for entrepreneurs, investors, executives, and board members by name in Crunchbase
Example Prompts for Crunchbase in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with Crunchbase immediately.
"Search for all funding rounds raised by Stripe and show me the total amount raised"
"Which venture capital firms invested in OpenAI's funding rounds?"
"Show me all companies acquired by Google in the last 5 years"
Troubleshooting Crunchbase MCP Server with LangChain
Common issues when connecting Crunchbase to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersCrunchbase + LangChain FAQ
Common questions about integrating Crunchbase MCP Server with LangChain.
How does LangChain connect to MCP servers?
langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.Which LangChain agent types work with MCP?
Can I trace MCP tool calls in LangSmith?
Connect Crunchbase with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Crunchbase to LangChain
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.