TypeScript · Agent framework

Use OpenRegistry from Vercel AI SDK

Use OpenRegistry from Vercel AI SDK (TypeScript) — generateText / streamText / agent flows.

Vercel AI SDK 4+ has first-class MCP support. OpenRegistry's tools appear natively in any generateText / streamText call — no schema conversion, no custom wrappers.

Install

npm install ai @ai-sdk/anthropic @modelcontextprotocol/sdk

Minimum working example

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

const transport = new StreamableHTTPClientTransport(
  new URL("https://openregistry.sophymarine.com/mcp")
);
const client = await createMCPClient({ transport });
const tools = await client.tools();

const { text } = await generateText({
  model: anthropic("claude-3-5-sonnet-latest"),
  prompt: "Find Revolut Ltd in the UK and list its officers.",
  tools,
  maxSteps: 8,
});

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

What you get

27 tools — search, profile, officers, PSC/UBO, shareholders, filings, XBRL accounts, charges, documents. See the full catalogue.
10 named workflow prompts — KYC dossier, UBO chain-walker, shell-company detector, phoenix-fraud radar. See all 10.
27 national registries — UK Companies House, Norway Brreg, Germany Handelsregister, France RNE, Spain BORME, Korea OpenDART, Canada CBCA, and more. See the map.
Live + source-linked — every field traces back to the government register. No aggregator markup.
Free tier: 20 req/min per IP, no signup, no API key.

Framework docs

Official MCP integration docs for Vercel AI SDK:

sdk.vercel.ai — createMCPClient ›

Use from a different framework?

OpenRegistry is a Model Context Protocol server. Any MCP client can connect — these are just the most popular agent frameworks.