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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 7 million UK 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

Zint uses the OAuth 2.1 flow for every MCP client. Users log in to Zint in the browser, approve access, and the client stores a short-lived access token for future tool calls.

  1. Your organisation admin enables Zint as a remote MCP connector inside the AI product (Claude, Copilot, ChatGPT, etc.). This only needs to happen once per workspace.
  2. End users click Connect on the Zint connector. A Zint login page opens in the browser.
  3. The user signs in with their Zint account and clicks Confirm Connection.
  4. The AI client receives the OAuth token, stores it securely, and uses it for every tool call. Tokens refresh automatically.

Admin note: until the connector is enabled at the workspace level, users won't see Zint in their connector list. If you don't have a Zint account yet, create one here and share the login with your organisation admin.

Connect Your Agent

Zint works with any MCP-compatible client. The three biggest ecosystems are covered below.

C

Claude Desktop

Remote MCP servers are managed from Claude's Connectors panel. An organisation admin must add Zint as a custom remote connector before individual users can sign in.

Admin setup (once per workspace)

  1. Open Claude Desktop → Settings → Connectors
  2. Click Add custom connector
  3. Name it Zint and enter https://data.zint.io/mcp
  4. Save — the connector now shows up for everyone in the workspace

User sign-in

  1. Open Settings → Connectors → find the Zint entry
  2. Click Connect — a browser tab opens to Zint
  3. Sign in and click Confirm Connection
  4. Claude reopens and Zint tools become available immediately

Full official walkthrough: Claude remote MCP docs →

Claude Desktop 
Connector name
Zint

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

Auth
OAuth (handled automatically)
M

Microsoft Copilot Studio

Copilot Studio supports remote MCP servers as first-class tools. Since its May 2025 general availability release, agents built in Copilot Studio can call Zint directly—no custom plugin required.

Admin setup

  1. Open Copilot Studio → your agent → Tools
  2. Click Add tool → Model Context Protocol
  3. Paste https://data.zint.io/mcp as the server URL
  4. Publish the agent so end users can authenticate against Zint on first use

Or skip the wizard entirely — see the Quick start below.

Official announcement & walkthrough: MCP in Microsoft Copilot Studio →

Copilot Studio — Tool config 
Tool type
Model Context Protocol

Name
Zint Data API

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

Authentication
OAuth 2.1 (per-user)
↓

Quick start — import the pre-built solution

Skip the manual wizard. Download the Zint managed solution, then in Copilot Studio open Solutions → Import solution → Browse and pick the .zip. The MCP connector, connection reference, and the Zint Data API agent are wired up for you. Sign in to Zint when prompted to mint the OAuth connection.

Sign in to download

Requires a free Zint account. The download filename and URL are stable across releases.

G

ChatGPT (MCP Apps — Beta)

ChatGPT supports remote MCP servers through its Developer Mode and the MCP Apps beta. Zint can be registered as an app and made available to end users inside ChatGPT conversations.

Admin setup

  1. Enable Developer Mode in ChatGPT settings
  2. Create a new MCP app pointing at https://data.zint.io/mcp
  3. Publish the app from the admin console so your workspace can access it
  4. End users activate the app from the ChatGPT app picker and sign in to Zint on first use

Publish step is required. Until the workspace admin publishes the Zint MCP app, it remains private to the admin account and other users cannot connect.

Official guide: Developer Mode & MCP apps in ChatGPT →

ChatGPT — MCP App config 
App name
Zint Data API

MCP server URL
https://data.zint.io/mcp

Authentication
OAuth 2.1 (per-user)

Visibility
Published (required)

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