Datapublica
MCP server URLhttps://mcp.datapublica.dk/mcp

Connect an agent (MCP)

Connect ChatGPT, Claude, Codex, or another capable MCP client to search Danish companies, people and properties, discover companies by what they do or find companies similar to known examples, inspect timelines, ownership, property holdings and sales, or run advanced SQL queries against the entire Datapublica database.

Before you start

  • Authentication opens Datapublica in your browser.
  • The MCP server URL is https://mcp.datapublica.dk/mcp.
  • Queries run on DuckDB, so use DuckDB SQL syntax and functions.

Published directory listings connect to production, including when linked from this site's staging preview. To test staging MCP, use the server URL above with a custom connector or one of the manual CLI configurations below.

ChatGPT

  1. Open Datapublica in ChatGPT.
  2. Select Install plugin, then Connect if prompted.
  3. Sign in to Datapublica, review the requested access and authorize the connection.
  4. Start a conversation and select @Datapublica or choose it from the tools menu.

Use the published plugin; no custom server or Developer mode is needed. See the illustrated ChatGPT guide.

The directory spans ChatGPT plans; individual plugin availability depends on your plan, region, workspace and included capabilities. Check the listing with your account. Some accounts show Apps instead of Plugins.

In Business, administrators can restrict access. Enterprise and Edu generally require an administrator to enable new plugins. Ask your administrator to allow both Datapublica and its included app under Workspace settings > Plugins.

A free Datapublica account includes a limited MCP allowance. Datapublica usage and data access follow your plan, separately from ChatGPT's limits.

Claude, Cowork and Claude Desktop

  1. Open Datapublica in the Claude Directory.
  2. Review the connector and select Connect or Install, as shown in Claude.
  3. Sign in to Datapublica, review the requested access and authorize the connection.
  4. Start a conversation, enable Datapublica in the connectors menu and try a prompt below.

The Directory is the recommended installation path; you do not need to enter a server URL or create a custom connector. See the Claude installation guide.

For Team and Enterprise workspaces, an Owner or Primary Owner may first need to enable Datapublica under Organization settings > Connectors using Browse connectors > Add to your team. Follow your workspace's authentication flow. Datapublica usage follows your account's plan, separately from Claude's limits.

Claude Code

claude mcp add --transport http --scope user datapublica https://mcp.datapublica.dk/mcp

Open Claude Code, run /mcp, choose datapublica, and authenticate in your browser. Confirm the connection with:

claude mcp list

Codex Desktop

Open Plugins, search for Datapublica in the official directory and select Install. Connect your Datapublica account when prompted, then start a new conversation. See the Codex guide.

Codex CLI

Add this server to ~/.codex/config.toml:

[mcp_servers.datapublica]
url = "https://mcp.datapublica.dk/mcp"
tool_timeout_sec = 60

Then authenticate and confirm the connection:

codex mcp login datapublica
codex mcp list

Try it

Check the Datapublica profile of THE COFFEE COLLECTIVE A/S and summarize the financials.
Use Datapublica to find the top 10 companies with the highest revenue in Roskilde, do web research about each of them, and make a slide deck presenting each company. Use one slide per company to present what it does and its key financials.
Use Datapublica to find who owns Østergade 14 in Copenhagen, who ultimately controls the owner, and when the property was last sold.
Use Datapublica to find SaaS companies. Retrieve a large semantic candidate pool, then keep only companies in Copenhagen and show the top 20 by semantic rank.