Vinkius
Blockchair

Blockchair MCP for AI. Analyze cross-chain data from any wallet or contract.

Claude Claude
ChatGPT ChatGPT
Cursor Cursor
Gemini Gemini
Windsurf Windsurf
VS Code VS Code
JetBrains JetBrains
Vercel Vercel
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Works with every AI agent you already use

…and any MCP-compatible client

Blockchair (Universal Blockchain Search Engine & API) MCP on Cursor AI Code EditorBlockchair (Universal Blockchain Search Engine & API) MCP on Claude Desktop AppBlockchair (Universal Blockchain Search Engine & API) MCP on OpenAI Agents SDKBlockchair (Universal Blockchain Search Engine & API) MCP on Visual Studio CodeBlockchair (Universal Blockchain Search Engine & API) MCP on GitHub Copilot AI AgentBlockchair (Universal Blockchain Search Engine & API) MCP on Google Gemini AIBlockchair (Universal Blockchain Search Engine & API) MCP on Lovable AI DevelopmentBlockchair (Universal Blockchain Search Engine & API) MCP on Mistral AI AgentsBlockchair (Universal Blockchain Search Engine & API) MCP on Amazon AWS Bedrock

Connect to your AI in seconds.

Blockchair Universal Blockchain Search Engine & API lets you query blocks, transactions, and addresses across over 20 different blockchains like Bitcoin, Ethereum, and Litecoin.

It treats decentralized network data the same way, letting your agent analyze complex financial flows without needing to switch between separate explorers.

What your AI can do

Filter blocks

Queries specific blocks using advanced, SQL-like filters.

Filter transactions

Queries transactions using advanced, SQL-like filters based on fee or time.

Get address

Retrieves the balance, full history, and UTXO set for a given wallet address.

+ 8 more capabilities included
Get network health statistics

Retrieve current difficulty, height, and general stats for any supported blockchain.

Analyze wallet accounts

Fetch a full history, including transaction records and unspent outputs (UTXOs), for a specific address.

Filter large data sets

Run complex queries against blocks or transactions using filters based on fees, time ranges, or value.

Inspect token details

Check the balance of specific ERC-20 tokens held by an address.

Trace contract logic

Read and analyze internal transaction calls made by smart contracts on Ethereum.

Included with Plan

Waiting for input…

AI Agent

Blockchair (Universal Blockchain Search Engine & API) MCP: 11 Tools

These eleven tools let you perform every type of blockchain query imaginable, from checking simple addresses to running complex, filtered data analyses.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Blockchair (Universal Blockchain Search Engine & API) on Vinkius

Filter Blocks

Queries specific blocks using advanced, SQL-like filters.

Filter Transactions

Queries transactions using advanced, SQL-like filters based on fee or time.

Get Address

Retrieves the balance, full history, and UTXO set for a given wallet address.

Get Block

Gets detailed information about a single specified block hash.

Get Contract Calls

Gets internal transactions and calls made by smart contracts on Ethereum.

Get Erc20 Token Address

Checks the balance of a specific ERC-20 token for an address.

Get Blockchain Stats

Retrieves general, real-time statistics for any supported blockchain network.

Get Transaction

Retrieves detailed information about one single transaction hash.

Get Xpub

Analyzes the data contained within an entire extended public key (HD wallet).

Push Transaction

Broadcasts a raw, hex-encoded transaction directly to the network for confirmation.

Validate Address

Verifies if an address is valid and usable on a specified blockchain chain.

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Claude AI

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.

2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.

3

Start a conversation

Open a new chat. The Blockchair integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

  • Import from OpenAPI, Swagger, or YAML specs
  • Create Agent Skills with progressive disclosure
  • Deploy to edge with MCPFusion framework
  • Built in DLP, auth, and compliance on every call
  • Real time usage dashboard and cost metering
  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Blockchair (Universal Blockchain Search Engine & API), then connect any of our 5,100+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,100+ others, all in one place
  • Add new capabilities to your AI anytime you want
  • Every connection is secured and compliant automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog every week
Blockchair MCP server cover

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Blockchair. 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.

VINKIUS INFRASTRUCTURE

Cloud Hosted

Managed infra

V8 Isolated

Sandboxed per request

Zero-Trust Proxy

No stored credentials

DLP Enforced

Policy on every call

GDPR Compliant

EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

Works with Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 11 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

The Pain of Manual Blockchain Investigation

Right now, investigating complex crypto movements means bouncing between five different websites. You check the main chain explorer for an address's basic history, then switch to a token tracker site to see ERC-20 balances, and if you suspect smart contract activity, you have to find a third-party tool just to read internal calls. It’s tedious copy-pasting between tabs.

With this MCP, that process disappears. Your agent takes the initial prompt—'What did this wallet do?'—and executes multiple, specialized checks in sequence. You get a single, compiled report showing everything from basic balances to complex contract interactions. The data just appears.

Getting Specific Blockchain Insights with Blockchair

The biggest time sink is dealing with scale and specialization. You can't run one query for everything. Historically, checking transaction fees required one tool, getting contract calls needed another, and analyzing the network difficulty needed a third. This fragmented approach slows down research dramatically.

Now, you tell your agent to synthesize that data. It runs `get_blockchain_stats` for the macro view, then uses `filter_transactions` for the micro-view, compiling all results into one coherent answer. The workflow is built around deep context, not single endpoints.

What your AI can actually do with this

Need deep insight into how money moves on any major blockchain? This MCP connects your AI client directly to a universal search engine for decentralized networks. You can pull real-time statistics on entire chains or track the history of a specific wallet address, no matter what cryptocurrency it holds. The tool handles everything from inspecting standard transactions to diving into specialized contract calls and tracking ERC-20 token balances across different chains.

If you're building tools that need reliable crypto data—whether for research, development, or monitoring network health—this MCP is your source. You connect the API key through Vinkius Marketplace and immediately give your agent access to a massive dataset. It means you stop guessing which specialized API endpoint you need; you just ask your agent, and it handles querying everything from specific block details to filtering millions of transactions using advanced logic.

Built · Hosted · Managed by Vinkius Blockchair MCP - Query All Blockchains & Crypto Data
Server ID 019e5d00-3257-73f5-93a7-55883954ec35
Vinkius Inspector
Compliance Grade F
Score 3.6/100
Vinkius Inspector Badge — Score 3.6/100

Questions you might have

How do I get general network stats using the get_blockchain_stats tool? +

Use this tool to fetch key metrics like difficulty and block height for a given chain. It's perfect for quickly assessing if a network is currently congested or running normally.

Can I find all my tokens using get_address? +

No, get_address handles the overall history and main balance. To specifically check ERC-20 balances, you must use the specialized tool get_erc20_token_address.

What is the difference between get_transaction and filter_transactions? +

get_transaction retrieves all details for one specific transaction ID. Use filter_transactions when you need to query many transactions at once based on criteria like fee or date range.

Can I submit a new transaction using push_transaction? +

Yes, this tool sends a raw hex-encoded transaction directly to the network. You must ensure the transaction is fully signed and formatted correctly before attempting to broadcast it.

When should I use the validate_address tool? +

Use it before querying any address to confirm it's valid for a specific chain. This saves time and prevents errors when your agent tries to retrieve data for an unusable or malformed wallet address.

How do I use the get_contract_calls tool? +

This tool shows internal Ethereum contract transactions, which is different from standard transfers. You can inspect how smart contracts interact with each other—essential for deep analysis of complex DeFi protocols.

What does the get_xpub tool do regarding wallet security? +

The get_xpub tool analyzes an entire HD wallet using extended public keys. Instead of checking just one address, it gives you data for every potential address derived from that key set.

If I use filter_blocks, how do I manage huge datasets? +

When querying blocks, always narrow your parameters. If the dataset is too large, break down your request by a specific time range or limit the transaction count to keep results manageable and fast.

Can I search across different blockchains using this server? +

Yes! You can specify the blockchain (e.g., 'bitcoin', 'ethereum', 'dogecoin') in tools like get_blockchain_stats or get_address to retrieve data from that specific network.

How do I filter transactions by specific criteria like high fees? +

Use the filter_transactions tool. You can provide a query string q such as fee(10000..) to find transactions with fees over 10,000 units, and sort them using the s parameter.

Can I check the balance of a specific ERC-20 token on Ethereum? +

Yes, use the get_erc20_token_address tool by providing the token's contract address and the wallet address you want to check.

Built & Managed by Vinkius 30s setup 11 tools

We've already built the connector for Blockchair. Just plug in your AI agents and start using Vinkius.

No hosting. No infrastructure. No complex setup.
All 11 tools are live and waiting. You're up and running in seconds.

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Vinkius runs on Cursor Cursor
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