How to Use the U.S. Congress MCP in Vercel AI SDK

Q: How do I get current bill status using U.S. Congress and Vercel AI SDK?

Just call listcongressbills with the specified Congress number. The tool streams the list of bills, letting your user see the full dataset populate instantly on the client side.

Q: Can I track past members using U.S. Congress and Vercel AI SDK?

Absolutely. listcongressmembers handles both current and historical figures. The results flow through your Edge Function, providing a live feed of data for your user interface.

Q: What if I need to analyze amendments using U.S. Congress and Vercel AI SDK?

You use listcongressamendments. This tool gives you the necessary amendment details, which stream into your application so you can build out specialized viewing components.

Q: How do I list treaties using U.S. Congress and Vercel AI SDK?

Use listcongresstreaties to retrieve the records. Since this is a streaming tool, you'll see the treaty names appear in your UI as they are processed.

Stream real-time U.S. legislative updates directly into your client UI using Vercel AI SDK.

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Connect U.S. Congress MCP to Vercel AI SDK

Create your Vinkius account to connect U.S. Congress 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 U.S. Congress with Vercel AI SDK

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Displaying Congress Members and Bills in Real Time

Use `list_congress_members` to get names and details for current or past US Congressional members. The results stream directly into your React front end, so users see the data appear live—no loading spinner needed. Need specifics? Call `get_bill_details` to fetch full legislative information for any given bill. This works perfectly with Edge Functions because the tool results arrive in real-time.

Querying Congressional History and Treaties

Run `list_congress_sessions` to get start and end dates for any Congress, like the 118th or 117th. This feeds structured date data straight into your Next.js components. Need to track international law? Use `list_congress_treaties` to pull a list of treaties handled by Congress. The output streams immediately, letting users see historical records as they appear.

Tracking Nominations and Committees

When you call `list_congress_nominations`, you get lists of executive and judicial nominations. This data is ideal for displaying status updates in a user dashboard. You can also use `list_congress_committees` to list the various committees involved. Passing these tools into your streamText function makes it easy to build interactive research tools.

Setup guide

Set up U.S. Congress 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 U.S. Congress 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 U.S. Congress transactions",
});

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

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 Congress.gov. 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 U.S. Congress MCP in Vercel AI SDK

Just call `list_congress_bills` with the specified Congress number. The tool streams the list of bills, letting your user see the full dataset populate instantly on the client side.

Absolutely. `list_congress_members` handles both current and historical figures. The results flow through your Edge Function, providing a live feed of data for your user interface.

You use `list_congress_amendments`. This tool gives you the necessary amendment details, which stream into your application so you can build out specialized viewing components.

This server touches public legislative records (bill details, member names, etc.). The data type is structured Congressional metadata, which is handled through secure endpoints.

Use `list_congress_treaties` to retrieve the records. Since this is a streaming tool, you'll see the treaty names appear in your UI as they are processed.

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