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Every Belgian company on the register, live and ceased, with its directors, shareholders and up to 20 years of filed annual accounts. Query it from your code over REST, or let Claude, Cursor or ChatGPT answer from it directly over MCP. Every record carries the date it was last refreshed and a reference to the filing it came from.

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Get started

1

Create an account

Sign up at app.otbstudio.ai and confirm your email address.
2

Choose a plan

Every call needs a plan, search included. There is no free tier. See Pricing.
3

Connect

Add the connector in Claude, or create an API key in the dashboard and use it below.

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Connect an agent

In Claude, add https://mcp.otbstudio.ai/mcp as a custom connector and sign in with your OTB Studio account. Nothing else to set up. See The MCP server. In Claude Code, Cursor and other MCP clients, create a key and add:

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Or call the REST API

See The REST API, or the API reference. MCP and REST read the same data through the same code, so both give the same answer, and one key works for both.

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What the register holds

3.3M

companies on the register, live and ceased

4.9M

director and mandate records

8.45M

filed annual accounts
Questions or problems: engineering@otbstudio.ai.