Summary
Connects Claude to Russia's Chestnyi Znak product marking system via the True API. You get 10 tools covering document retrieval, marking code search and validation, warehouse balance queries, participant verification by INN, and product card lookup by GTIN. Requires a JWT token from your Chestnyi Znak account, which involves GOST cryptography and is handled separately. Token lives in a file that the server watches, so you can refresh it without restarting. Supports both sandbox and production environments. If you're building ERP integrations or need to automate compliance workflows around Russian product labeling, this gives your AI assistant direct access to the official registry.
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@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
| Tool | Description |
|---|---|
chz_doc_list | List documents for a product group |
chz_doc_info | Get details of a specific document by ID |
chz_doc_cis_list | List marking codes included in a document |
chz_cis_search | Search marking codes by filter criteria |
chz_cis_info | Get public info for a list of CIS codes |
chz_product_info | Get product card by GTIN |
Balance & Reference
| Tool | Description |
|---|---|
chz_balance_all | Balance of marking codes across all product groups |
chz_warehouse_balance | Virtual warehouse balance for a product group |
chz_participant_check | Check company registration status by INN |
chz_receipt_list | List 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_ENVvalue must match — a sandbox token won't work on the production endpoint and vice versa.
Environment Variables
| Variable | Required | Default | Description |
|---|---|---|---|
CHZ_TOKEN_FILE | Yes | — | Absolute path to file containing the JWT token |
CHZ_ENV | No | prod | Contour: sandbox or prod |
Author & Support
Built by Oleg Alekseev — ERP/AI integration architect.
- 📧 woyaxnini@gmail.com · woyax@yandex.com
- 💬 Telegram: @ale_oleg · Channel: @woyax_ai
- 💬 MAX: max.ru/id503610654564_biz
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.
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Configuration
CHZ_TOKEN*secretChestnyi Znak API token. Obtain in your personal cabinet at markirovka.crpt.ru. IMPORTANT: token expires every 8–10 hours and must be refreshed.
Registryactive
Package@woyax/mcp-chestnyi-znak
TransportSTDIO
AuthRequired
UpdatedApr 17, 2026