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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use Blockchair with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Query blocks, transactions, and addresses across multiple blockchains like Bitcoin and Ethereum using Blockchair's universal API.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 11 capabilities

The complete Blockchair capability set.

These are the exact actions your AI can choose when you ask it to work with Blockchair.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 11 available through Blockchair.

  1. 01

    Get transaction

    Retrieve details about a specific transaction

  2. 02

    Get xpub

    Retrieve data for an entire HD wallet (xpub)

  3. 03

    Push transaction

    Broadcast a raw hex-encoded transaction to the network

  4. 04

    Validate address

    Check if an address is valid for a specific chain

Capability set02 / 03

05-08

4 capabilities in this set.

Part of 11 available through Blockchair.

  1. 05

    Filter blocks

    Example q: time(2023-01-01..2023-01-02),transaction_count(100..) Query blocks using SQL-like filters

  2. 06

    Get block

    Retrieve details about a specific block

  3. 07

    Get blockchain stats

    For the specified blockchain. Get general information about a blockchain

  4. 08

    Get contract calls

    Get Ethereum contract internal transactions

Capability set03 / 03

09-11

3 capabilities in this set.

Part of 11 available through Blockchair.

  1. 09

    Get erc20 token address

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

  2. 10

    Filter transactions

    Example q: fee(10000..), s: fee(desc) Query transactions using SQL-like filters

  3. 11

    Get address

    Retrieve balance, history, and UTXO set for an address

Observed, not estimated

930ms average. Fast in production.

Blockchair is checked daily against the live service.

Daily averagePeak 1311ms
Aug 20Today
Fastest day
757ms
Slowest day
1311ms
14-day trend
Slowing+11%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 11 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Blockchair, so you can see the experience inside your AI.

It does not authenticate your account with Blockchair. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Blockchair Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_5UGquZAtkUXwg20SDzhN0BLiU6oYCsjOeodEugDs/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Blockchair capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "blockchair-universal-blockchain-search-engine-api-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_5UGquZAtkUXwg20SDzhN0BLiU6oYCsjOeodEugDs/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions Blockchair owners ask.

  • 01

    Can I search across different blockchains using this server?

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

  • 02

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

    Use the filter_transactions capability. 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.

  • 03

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

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

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