Compatible with every major AI agent and IDE
What is the Nansen (Blockchain Analytics) MCP Server?
Connect your Nansen API to any AI agent to unlock deep on-chain insights through natural language. Nansen provides the data that helps investors and teams identify opportunities and perform due diligence on-chain.
Key Capabilities
- Smart Money Tracking — Monitor where the most sophisticated on-chain entities are moving their capital with netflow and holdings tools.
- Wallet Profiling — Inspect any address or entity to see current balances, historical snapshots, and behavioral labels.
- PnL Analysis — Calculate aggregate profit and loss for specific wallets or deep dive into performance for individual tokens.
- DEX & Perp Activity — Track real-time trading on decentralized exchanges and perpetual platforms like Hyperliquid.
- Entity Search — Quickly find tokens, entities, or contract addresses by name or symbol.
How it works
- Subscribe to this server
- Enter your Nansen API Key
- Start querying blockchain data from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Crypto Researchers — identify emerging trends and whale movements without manual dashboard navigation.
- Traders — monitor Smart Money flows and PnL metrics directly from their workspace.
- Developers — integrate on-chain labels and balance data into their development workflow.
Built-in capabilities (48)
Deep multi-step analysis and synthesis
Low-latency streamed answers for simple research questions
Most profitable Hyperliquid traders
Tier lookup for a wallet on the Nansen points leaderboard
Paginated Nansen points leaderboard
Track DeFi positions across protocols
Win rate, PnL, and wallet age in prediction markets
Stats for market categories (Politics, Crypto, etc.)
Browse groups of related prediction markets
Browse and filter all prediction markets
1-hour price history candles for prediction markets
Real-time bid/ask depth for prediction markets
Total PnL for a trader in prediction markets
Profitability rankings for a prediction market
Granular holder positions for prediction markets
Largest conviction holders in prediction markets
All trades for a specific wallet in prediction markets
Recent trades for a specific prediction market
Top addresses/entities interacted with
Current token balances for an address or entity
Historical holding snapshots for an address
Non-premium labels (ENS, behavioral)
Real-time Hyperliquid positions
Hyperliquid trade history
Detailed PnL for a specific address and token
Aggregate PnL and top profitable tokens
All labels including Smart Money
Wallets related by on-chain behavior
Recent blockchain transactions for an address
Search for tokens and entities by name, symbol, or contract address
DCA strategies on Jupiter (Solana)
Real-time DEX trading activity (last 24h)
Daily snapshots of smart money holdings (Beta)
Aggregated token balances held by smart money
Net capital flows (inflows vs outflows) for tokens
Perpetual trading on Hyperliquid
Individual DEX transactions for a token
Segmented flows (Exchanges, Whales, Smart Money)
Hourly snapshots of inflows/outflows by category
Top holders with balance change tracking
Risk and Reward scores for a token
Jupiter DCA orders for a token (Solana)
Rank traders by profit for a specific token
Metadata, market metrics, and spot trading stats
Unified price/volume candles (1m to 1M timeframes)
Top token transfers (ERC-20)
Summary of net buyers/sellers
Discover trending tokens across chains
Why Cursor?
Cursor's Agent mode turns Nansen (Blockchain Analytics) into an in-editor superpower. Ask Cursor to generate code using live data from Nansen (Blockchain Analytics) and it fetches, processes, and writes. all in a single agentic loop. 48 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.
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Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context
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Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards
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MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment
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VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools
Nansen (Blockchain Analytics) in Cursor
Nansen (Blockchain Analytics) and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Nansen (Blockchain Analytics) to Cursor 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 | 4,000+ 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 Nansen (Blockchain Analytics) in Cursor
The Nansen (Blockchain Analytics) 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 48 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Cursor 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
Nansen (Blockchain Analytics) for Cursor
Every tool call from Cursor to the Nansen (Blockchain Analytics) MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How can I track where Smart Money is moving capital?
Use the smart_money_netflow tool to see net capital flows (inflows vs outflows) for tokens, or smart_money_holdings to see aggregated balances held by these sophisticated entities.
Can I identify the behavior or identity of a specific wallet?
Yes, use profiler_labels or profiler_premium_labels to retrieve behavioral tags (like 'Smart Money', 'Heavy DEX User', or ENS names) associated with any blockchain address.
How do I analyze the performance of a specific address?
Use profiler_pnl_summary to get an aggregate view of profits and losses, or profiler_pnl for a detailed breakdown of performance for a specific address and token pair.
What is Agent mode and why does it matter for MCP?
Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.
Where does Cursor store MCP configuration?
Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.
Can Cursor use MCP tools in inline edits?
No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.
How do I verify MCP tools are loaded?
Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.
Tools not appearing in Cursor
Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.
Server shows as disconnected
Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.
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