How to Use the Nansen (Blockchain Analytics) MCP in CrewAI

Q: How do I get started with Nansen (Blockchain Analytics) and CrewAI?

The simplest way is to install crewaitools and pass your Vinkius MCP URL directly into an Agent's mcps parameter. For more control, use the MCPServerHTTP class to selectively expose tools to different agents in your crew.

Deploy autonomous crews of AI agents on CrewAI that use Nansen's on-chain data to find alpha, monitor wallets, and perform deep research.

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Connect Nansen (Blockchain Analytics) MCP to CrewAI

Create your Vinkius account to connect Nansen (Blockchain Analytics) to CrewAI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Nansen (Blockchain Analytics) with CrewAI

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Assemble a 'Whale Watcher' Crew

Assign specialized roles to different agents to create a sophisticated monitoring system. One agent finds signals, another analyzes them. This division of labor is what makes CrewAI powerful. A 'Scout' agent can use `tgm_flow_intelligence` to spot large inflows to a token. It then passes the token contract to an 'Analyst' agent, which performs a deep dive with `tgm_holders` and `profiler_related_wallets`. A 'Reporter' agent then summarizes the findings.

Build an Autonomous Market Research Team

Go beyond simple alerts. You can build a crew that performs end-to-end due diligence on new tokens without any human input. The agents collaborate to build a complete picture. For instance, a 'Screener' agent uses `token_screener` to find trending tokens. It hands off its list to a 'Fundamentals' agent that checks `tgm_token_information`. Finally, a 'Flows' agent analyzes buyer and seller behavior with `tgm_who_bought_sold` before the crew produces a final report.

Delegate Nansen Tools to Your CrewAI Agents

Equip your specialized agents with the exact tools they need. Your research agent doesn't need access to trading tools, and your monitoring agent doesn't need deep historical data. The MCP server makes this easy. Using `MCPServerHTTP` from `crewai.mcp`, you can use a `tool_filter` to assign specific Nansen tools to each agent. Give the `perp_leaderboard` tool to your 'Trader-Profiler' agent and the `smart_money_netflow` tool to your 'Market-Analyst' agent. This keeps your agents focused and efficient.

Setup guide

Set up Nansen (Blockchain Analytics) MCP in CrewAI

Prerequisites

Python 3.10+ installed
crewai package (pip install crewai)
Active Vinkius subscription with a valid endpoint token

1

Install CrewAI
Run pip install crewai to install the framework. MCP support is built-in via the mcps parameter.
2

Add the MCP URL to your agent
Pass your Vinkius endpoint directly to the mcps list. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. CrewAI handles tool discovery and caching automatically.
3

Kick off your crew
Create a Crew with your agent and tasks. Call crew.kickoff() — the agent will automatically invoke Nansen (Blockchain Analytics) tools as needed.

crew.py

from crewai import Agent, Task, Crew

agent = Agent(
    role="Nansen (Blockchain Analytics) Analyst",
    goal="Access and analyze Nansen (Blockchain Analytics) data via MCP.",
    backstory="Expert analyst with direct Nansen (Blockchain Analytics) access.",
    mcps=[
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ],
)

task = Task(
    description="List recent Nansen (Blockchain Analytics) transactions",
    agent=agent,
    expected_output="A summary of recent activity",
)

crew = Crew(agents=[agent], tasks=[task])
result = crew.kickoff()
print(result)

Get your connection token →

Prerequisites

Python 3.10+ installed
crewai + crewai-tools packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run pip install crewai crewai-tools. The MCPServerAdapter handles lifecycle management and tool conversion.
2

Connect with MCPServerAdapter
Use MCPServerAdapter as a context manager with SseServerParameters pointing to your Vinkius endpoint. The adapter automatically manages connection lifecycle.
3

Assign tools and run
Pass the returned mcp_tools to your agent's tools parameter. The adapter converts MCP tools to native BaseTool objects compatible with all CrewAI agents.

crew.py

from crewai import Agent, Task, Crew
from crewai_tools import MCPServerAdapter
from mcp import SseServerParameters

server_params = SseServerParameters(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

with MCPServerAdapter(server_params) as mcp_tools:
    agent = Agent(
        role="Nansen (Blockchain Analytics) Analyst",
        goal="Access and analyze Nansen (Blockchain Analytics) data via MCP.",
        backstory="Expert analyst with direct Nansen (Blockchain Analytics) access.",
        tools=mcp_tools,
    )

    task = Task(
        description="List recent Nansen (Blockchain Analytics) transactions",
        agent=agent,
        expected_output="A summary of recent activity",
    )

    crew = Crew(agents=[agent], tasks=[task])
    result = crew.kickoff()
    print(result)

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Nansen. 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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Common questions about Nansen (Blockchain Analytics) MCP in CrewAI

The simplest way is to install `crewai[tools]` and pass your Vinkius MCP URL directly into an Agent's `mcps` parameter. For more control, use the `MCPServerHTTP` class to selectively expose tools to different agents in your crew.

Yes, that's a core pattern in CrewAI. You can have a 'Monitor' agent that watches the output of an 'Analyst' agent using Nansen tools. If the Analyst spots a critical event, like a massive outflow via `smart_money_netflow`, the Monitor can escalate it to another agent or a human.

Build a 'DeFi Alpha' crew. An 'Opportunity Scout' agent monitors `smart_money_dex_trades`. A 'Risk Analyst' agent profiles the involved wallets using `profiler_pnl_summary` and `profiler_labels`. A 'Strategy' agent then decides if the activity represents a tradable opportunity.

Absolutely. The Nansen tools become actions that your agents can perform within any CrewAI process type. Whether your agents work in a sequence or a hierarchy, they can call on the Nansen MCP server at any step to get the data they need.

Your Nansen credentials live on the Vinkius-managed MCP server, not in your agent code. Each agent in your crew connects via the `MCPServerHTTP` utility, processing on-chain data like wallet labels and historical balances. Your agents operate in your environment, but the data access is securely proxied.

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