Model Context Protocol

Give Your Agent
UK Company Data.

Connect any AI agent to the Zint Data API via MCP. One remote connector gives your agent access to 5+ million companies—financials, officers, filings, ESG data, and more.

Get Started API Reference

agent > mcp

Agent: Look up officers and financials for company 11373627.

Tool call: api_endpoints_get_company_data
  company_numbers: ["11373627"]
  fields: ["officers", "historical_financials"]
  historical_financials_year_count: 1

Result: {
  "credits_charged": 6,
  "results": [{
    "company_name": "ZINT TECHNOLOGY LIMITED",
    "data": { ... }
  }]
}▌

What is MCP?

The Model Context Protocol (MCP) is an open standard that lets AI agents call external tools and data sources. Instead of copy-pasting API responses into a chat window, MCP wires the data source directly into the agent's tool-use loop.

The Zint MCP Server automatically converts every endpoint in our REST API into an MCP tool. Your agent can search companies, pull financials, read officer lists, and query contextual intelligence—all without writing a single line of glue code.

MCP Server URL

https://data.zint.io/mcp

How Authentication Works

How you sign in depends on the client. Claude and ChatGPT use a browser-based OAuth 2.1 flow; Microsoft Copilot Studio uses a Zint API key. Either way, every request is tied to your Zint account and your credit balance.

Claude & ChatGPT — OAuth 2.1

Find Zint in the client's connector directory and click Connect.
A Zint login page opens in the browser. Sign in and click Confirm Connection.
The client receives a short-lived OAuth token, stores it securely, and uses it for every tool call. Tokens refresh automatically.

Copilot Studio — API key

Create an API key in your Zint account under API keys.
When you add the certified connector, create a connection and paste the key as Bearer <your-key> (note the trailing space after Bearer).
Copilot Studio stores the connection and reuses it for every run of the agent.

No Zint account yet? Create one here — it's free, and you'll need it to sign in (Claude, ChatGPT) or to mint an API key (Copilot Studio).

Connect Your Agent

Zint works with any MCP-compatible client. The biggest ecosystems are covered below, and any other client can connect with the raw endpoint.

Claude

Zint is a published connector in Claude's directory — there's no server URL to paste. Add it in a couple of clicks from the Connectors settings, on the web or in the desktop app.

Add the connector

Open Settings → Connectors (or click Browse connectors)
Search for Zint and open it — or go straight to the directory listing
Click Connect — a browser tab opens to Zint
Sign in and click Confirm Connection; Zint tools become available immediately

Team & Enterprise admins

Enable Zint for everyone from Admin settings → Connectors. Members can then connect their own Zint account (or request access, if approval is required).

Directory listing: Zint on the Claude directory →

Claude — directory connector

Find in
Settings → Connectors → Browse

Directory listing
claude.ai/directory/connectors/zint

Auth
OAuth (sign in to Zint)

Microsoft Copilot Studio

Zint is a Microsoft-certified connector, so it appears in the Copilot Studio tool gallery — no server URL to paste by hand. Add it to any agent from the Tools tab.

Add the connector to an agent

Open your agent → Tools → Add a tool
Search Zint and pick Zint Data API MCP server (under All or Model Context Protocol — not the Connector chip)
Create a connection: paste your Zint API key as Bearer <your-key> (keep the trailing space after Bearer)
Click Add. On first run, bind the connection via Open connection manager → Connect, then Retry

Prefer a ready-built agent? Download the managed solution below.

Full step-by-step walkthrough with screenshots: Copilot Studio setup guide →

Background on MCP tools in Copilot Studio: MCP in Microsoft Copilot Studio →

Copilot Studio — Tool config

Tool type
Model Context Protocol (certified)

Connector
Zint Data API MCP server

Publisher
Zint

Authentication
API key — Bearer <your-key>

Optional: want a complete pre-built agent instead of just the connector, or need to deploy into a dedicated Power Platform environment? Download the Zint managed solution and import it via Solutions → Import solution.

ChatGPT

Zint is a published connector in ChatGPT — no Developer Mode and no custom MCP app to register. Enable it from the connector directory and it's available in your conversations.

Enable the connector

Open the Zint listing in ChatGPT's connector/apps directory
Click Connect and sign in to Zint to authorise access
In a chat, enable Zint from the + / apps menu when you want to use it

Business / Enterprise workspaces: a workspace owner may need to allow the Zint connector in workspace settings before members can enable it.

More on connectors: Connectors in ChatGPT →

ChatGPT — directory connector

Find in
ChatGPT directory → Connectors

App name
Zint

Auth
OAuth (sign in to Zint)

Any other MCP client

The directory listings above are just convenience wrappers around one open endpoint. Cursor, VS Code / GitHub Copilot, Windsurf, Claude Code, and your own agents built on the MCP SDKs can all connect by pointing at the Zint MCP server directly.

Two ways to authenticate

Clients that support OAuth 2.1 discover Zint's auth server automatically and open a browser sign-in — no key to copy
Clients that use a static header instead send your API key as Authorization: Bearer <your-key>

Either way the tool catalogue is read from the live server, so new endpoints appear automatically. See the API reference for what each tool returns.

Any MCP client — config

Server URL
https://data.zint.io/mcp

Transport
Streamable HTTP

Auth
OAuth 2.1 (auto), or
Authorization: Bearer <your-key>

Wire in the data.

Get a Zint account, enable the MCP connector, and connect your agent in under two minutes.

Full API Docs Get Started

Give Your Agent UK Company Data.