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Chestnyi Znak MCP Server

Official registry Productivity

MCP server for Chestnyi Znak — Russian product marking system. 10 tools: codes, documents, stocks.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @woyax/mcp-chestnyi-znak
Claude Code 
claude mcp add chestnyi-znak-mcp-server -e 'CHZ_TOKEN=<your chz_token>' -- npx -y @woyax/mcp-chestnyi-znak@0.1.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "chestnyi-znak-mcp-server": {
            "command": "npx",
            "args": [
                "-y",
                "@woyax/mcp-chestnyi-znak@0.1.1"
            ],
            "env": {
                "CHZ_TOKEN": "<your chz_token>"
            }
        }
    }
}

Environment variables

  • CHZ_TOKEN required secret Chestnyi Znak API token. Obtain in your personal cabinet at markirovka.crpt.ru. IMPORTANT: token expires every 8–10 hours and must be refreshed.

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. @woyax/mcp-chestnyi-znak
  2. Tools (10 total)
  3. Getting a Token
  4. Installation & Configuration
  5. Environment Variables
  6. Author & Support
  7. License

@woyax/mcp-chestnyi-znak

MCP server for Chestnyi Znak (Честный Знак) — Russia's national product labelling system (True API).

Enables AI assistants (Claude, Cursor, etc.) to query marking codes, documents, warehouse balances, and participant data directly via natural language.

First MCP server for Chestnyi Znak True API.

Tools (10 total)

Documents & Marking Codes
ToolDescription
chz_doc_listList documents for a product group
chz_doc_infoGet details of a specific document by ID
chz_doc_cis_listList marking codes included in a document
chz_cis_searchSearch marking codes by filter criteria
chz_cis_infoGet public info for a list of CIS codes
chz_product_infoGet product card by GTIN
Balance & Reference
ToolDescription
chz_balance_allBalance of marking codes across all product groups
chz_warehouse_balanceVirtual warehouse balance for a product group
chz_participant_checkCheck company registration status by INN
chz_receipt_listList withdrawal receipts for a product group

Development of new tools is ongoing.

Getting a Token

This server requires a JWT token from your Chestnyi Znak personal account. Token acquisition involves GOST cryptography (КриптоПро + УКЭП) and is outside the scope of this package.

Token retrieval can be automated — using a local КриптоПро script, a signing microservice, USB-over-IP with a hardware token, or a cloud HSM. It can also be done manually via the Chestnyi Znak web interface. The right approach depends on your infrastructure, OS, certificate type, and security requirements. Because the options and constraints vary significantly from case to case, this is treated as a separate integration task. We handle this kind of setup as well — feel free to reach out.

Token lifetime: ~8–12 hours. Update the file when it expires — the server picks it up automatically without restart.

Installation & Configuration

Claude Desktop

Add to your claude_desktop_config.json:

Sandbox:

{
  "mcpServers": {
    "chestnyi-znak": {
      "command": "npx",
      "args": ["-y", "@woyax/mcp-chestnyi-znak"],
      "env": {
        "CHZ_TOKEN_FILE": "/path/to/your/token",
        "CHZ_ENV": "sandbox"
      }
    }
  }
}

Production:

{
  "mcpServers": {
    "chestnyi-znak": {
      "command": "npx",
      "args": ["-y", "@woyax/mcp-chestnyi-znak"],
      "env": {
        "CHZ_TOKEN_FILE": "/path/to/your/token"
      }
    }
  }
}

CHZ_ENV defaults to "prod" if not set.

Important: the token file and the CHZ_ENV value must match — a sandbox token won't work on the production endpoint and vice versa.

Environment Variables

VariableRequiredDefaultDescription
CHZ_TOKEN_FILEYes—Absolute path to file containing the JWT token
CHZ_ENVNoprodContour: sandbox or prod

Author & Support

Built by Oleg Alekseev — ERP/AI integration architect.

Need help integrating AI agents with your ERP, CRM, or Chestnyi Znak? Custom MCP servers, n8n workflows, AI automation — contact me.

License

MIT + Commons Clause © Oleg Alekseev

Free to use for personal and corporate purposes. Selling as a hosted service requires author's permission. See LICENSE for details.

Frequently asked questions

What is Chestnyi Znak MCP Server?

MCP server for Chestnyi Znak — Russian product marking system. 10 tools: codes, documents, stocks.

How do I install Chestnyi Znak MCP Server?

It runs on your machine. In Claude Code: claude mcp add chestnyi-znak-mcp-server -e 'CHZ_TOKEN=<your chz_token>' -- npx -y @woyax/mcp-chestnyi-znak@0.1.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Chestnyi Znak MCP Server need an API key?

Yes. It expects CHZ_TOKEN, which you set in its configuration.

Is Chestnyi Znak MCP Server open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Chestnyi Znak MCP Server?

It is published by woyaxnini. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.