DaData MCP server

Install

Manual install

{
  "mcpServers": {
    "dadata": {
      "command": "npx",
      "args": ["-y", "supergateway", "--streamableHttp", "https://mcp.dadata.ru/mcp", "--oauth2Bearer", "${API_KEY}:${SECRET_KEY}"]
    }
  }
}

This is third-party code. Review the repository files before installing.

What it does

The server gives an agent access to DaData's reference data through a remote MCP endpoint. It can look up an organization by tax ID or registration number and get its details, check a counterparty's reliability, standardize and verify an address, identify the owner behind a corporate domain or email, and do geocoding and reverse geocoding. The first company and address lookups are free, after that DaData's paid tiers apply.

Who it is for. For accountants, sales teams and developers who need counterparty checks and address standardization inside a conversation with an agent.

Example request

Check the company with tax ID 7707083893 and standardize its legal address

Limitations

You need a separate DaData API key and secret key, issued after registration. Only the first 50 companies and first 100 addresses are free, after that companies cost 56000 rubles a year by subscription, domains and emails 7 rubles per request, addresses 0.20 rubles per address. Direct HTTP connection requires sending a compound token in the format key:secret_key, so the official Claude Desktop example uses a supergateway wrapper.

How to disable. Remove the server from your MCP client configuration and revoke or let the DaData keys expire in the personal account.

MCP

Transport

http

Authentication

API key

Security check

• DaData keys draw on a paid request quota, a leaked key can lead to unexpected charges
• The server only reads reference data, it does not change anything in the user's own systems

README in short

The official dadata.ru/mcp page describes the server as a way to connect AI models to company and address data: address https://mcp.dadata.ru/mcp, Bearer-token authorization in the key:secret_key format. It lists the tools: company lookup by tax ID or registration number, address standardization and verification, domain or email owner lookup, counterparty checks and geocoding. It states free limits and prices for companies, domains and addresses, plus connection examples for Claude Desktop via supergateway and for the OpenAI API.

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