How to Use the Blockchair (Universal Blockchain Search Engine & API) MCP in Vercel AI SDK

Q: How do I query specific block ranges using Blockchair (Universal Blockchain Search Engine & API) in Vercel AI SDK?

You pass the filter string directly to the filterblocks tool. The SDK then processes the result for your frontend.

Q: Can Vercel AI SDK use Blockchair (Universal Blockchain Search Engine & API) to check token balances?

Yes. Call geterc20tokenaddress with the target contract and wallet address. The data returns as a structured object ready for your UI.

Stream real-time blockchain data directly into your Vercel AI SDK frontends with this MCP Server.

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Connect Blockchair (Universal Blockchain Search Engine & API) MCP to Vercel AI SDK

Create your Vinkius account to connect Blockchair (Universal Blockchain Search Engine & API) to Vercel AI SDK 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 Blockchair (Universal Blockchain Search Engine & API) with Vercel AI SDK

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Live blockchain data for Vercel AI SDK

Feed live transaction and block data into your React components. Use `filter_blocks` and `filter_transactions` to pull raw data that streams straight to your users. Your UI updates instantly as the AI processes the response. No more waiting for spinners when you need to show current network activity.

Verify and track assets

Check wallet balances and token holdings on the fly. Your app can call `get_address` or `get_erc20_token_address` to show exactly what a user owns in their digital wallet. It handles the heavy lifting of parsing chain data. You just render the state returned to your frontend.

Broadcast transactions from the browser

Push signed hex data to the network using `push_transaction`. This lets your Vercel AI SDK application interact with the blockchain without building custom node middleware. It keeps your backend light. The server handles the broadcast while your interface keeps the user updated on the status.

Setup guide

Set up Blockchair (Universal Blockchain Search Engine & API) MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all Blockchair (Universal Blockchain Search Engine & API) tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent Blockchair (Universal Blockchain Search Engine & API) transactions",
});

console.log(text);
await mcpClient.close();

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Common questions about Blockchair (Universal Blockchain Search Engine & API) MCP in Vercel AI SDK

You pass the filter string directly to the `filter_blocks` tool. The SDK then processes the result for your frontend.

Yes. Call `get_erc20_token_address` with the target contract and wallet address. The data returns as a structured object ready for your UI.

It does. Since it is an MCP server, results flow through the stream. Your users see the data populate as the agent works.

The server returns an error message from the network. You catch this in your agent logic to alert the user.

We only touch public blockchain data. No private keys or sensitive user information ever pass through this server.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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