1C MCP
Инструмент для создания MCP-серверов в 1С:Предприятие путем разработки расширения конфигурации. Позволяет интегрировать данные и функциональность 1С с AI-ассистентами (Claude, Cursor и т.д.). Включает Python-прокси и пример расширения 1С с готовыми и
What is 1C MCP?
1C MCP is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to инструмент для создания mcp-серверов в 1с:предприятие путем разработки расширения конфигурации. позволяет интегрировать данные и функциональность 1с с ai-ассистентами (claude, cursor и т.д.). включает...
Инструмент для создания MCP-серверов в 1С:Предприятие путем разработки расширения конфигурации. Позволяет интегрировать данные и функциональность 1С с AI-ассистентами (Claude, Cursor и т.д.). Включает Python-прокси и пример расширения 1С с готовыми и
This server falls under the Business Applications category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Инструмент для создания MCP-серверов в 1С:Предприятие путем
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx 1cConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use 1C MCP
The 1C MCP Server enables AI assistants like Claude and Cursor to integrate directly with 1C:Enterprise — the dominant ERP and business platform across Russia and the CIS region. By deploying a 1C configuration extension and publishing an HTTP service, developers expose business data and custom tools to any MCP-compatible AI client. This is the primary solution for teams that need AI-assisted querying, reporting, or automation inside their existing 1C:Enterprise environment without leaving the platform's BSL ecosystem.
Prerequisites
- 1C:Enterprise platform (version 8.3+ recommended) with a web server configured for HTTP service publication
- Python 3.8+ installed if using the Python proxy for OAuth2 authentication
- Docker (optional) for containerized proxy deployment
- An MCP-compatible client such as Claude Desktop or Cursor
- Basic knowledge of 1C BSL (1C scripting language) to create custom tool handlers
Deploy the 1C Configuration Extension
Download or build the extension file from the repository's build directory and attach it to your 1C:Enterprise configuration. The extension adds the MCP subsystem, HTTP service, and example tool handlers to your existing database.
# The extension file is located at:
# build/MCP_Сервер.cfe
# Attach via: Configuration → Extensions → Add from filePublish the HTTP Service on Your Web Server
In 1C:Enterprise Configurator, publish the mcp_APIBackend HTTP service to your web server (Apache or IIS). The resulting endpoint URL will follow the pattern shown below. Case sensitivity in the database name is critical — the URL path must exactly match the publication name.
# Published endpoint pattern:
http://<your-server>/<base>/hs/mcp/
# Example:
http://localhost/accounting/hs/mcp/Configure Docker Proxy (Optional)
If your 1C server requires authentication or you want OAuth2 support, use the Python proxy included in the repository. Copy the example env file, fill in your credentials, and start the container.
cp .env.docker.example .env
# Edit .env and set:
# MCP_ONEC_URL=http://host.docker.internal/<base>/hs/mcp/
# ONEC_LOGIN=your_username
# ONEC_PASSWORD=your_password
docker compose up -dAdd a Custom Tool Handler in BSL
Create your own tools by adding a handler module to the mcp_КонтейнерыИнструментов subsystem. Each handler must implement two export methods: ДобавитьИнструменты() to describe the tool schema, and ВыполнитьИнструмент() to execute the logic.
// Example BSL structure (module in the subsystem):
// Export method 1 - Describe tools
Процедура ДобавитьИнструменты(Инструменты) Экспорт
Инструмент = Инструменты.Добавить();
Инструмент.Имя = "get_sales_report";
Инструмент.Описание = "Returns sales report for a given period";
КонецПроцедуры
// Export method 2 - Execute tool
Функция ВыполнитьИнструмент(ИмяИнструмента, Параметры) Экспорт
// Your BSL logic here
КонецФункцииConfigure Your MCP Client
Point your MCP client to the published endpoint. For Claude Desktop, add the server configuration to your claude_desktop_config.json. The mcpServers block should reference the HTTP endpoint.
{
"mcpServers": {
"1c": {
"command": "python",
"args": ["proxy.py"],
"env": {
"MCP_ONEC_URL": "http://localhost/accounting/hs/mcp/",
"ONEC_LOGIN": "your_username",
"ONEC_PASSWORD": "your_password"
}
}
}
}1C MCP Examples
Client configuration
Claude Desktop configuration connecting to a locally-published 1C:Enterprise HTTP service via the Python proxy.
{
"mcpServers": {
"1c": {
"command": "python",
"args": ["proxy.py"],
"env": {
"MCP_ONEC_URL": "http://host.docker.internal/accounting/hs/mcp/",
"ONEC_LOGIN": "admin",
"ONEC_PASSWORD": "secret"
}
}
}
}Prompts to try
Example natural language prompts to use once the 1C MCP server is connected to your AI client.
- "Show me the sales totals for January 2025 from the accounting database"
- "List all open purchase orders in the system"
- "What inventory items are below their reorder threshold?"
- "Generate a balance sheet summary for Q4 2024"Troubleshooting 1C MCP
POST requests are being converted to GET requests, returning errors
The database name in your URL must exactly match the publication name in 1C, including case. For example, use 'accounting' not 'Accounting'. Case mismatches cause HTTP redirects that convert POST to GET.
The MCP client cannot reach the 1C HTTP service from Docker
When 1C is running on the host machine and the proxy runs in Docker, set MCP_ONEC_URL to use 'host.docker.internal' instead of 'localhost' (e.g., http://host.docker.internal/accounting/hs/mcp/).
Authentication errors when connecting to the 1C database
Direct publication without authentication is required for the basic setup, which may be a security concern in production. Use the Python proxy with OAuth2 support for secure credential management.
Frequently Asked Questions about 1C MCP
What is 1C MCP?
1C MCP is a Model Context Protocol (MCP) server that инструмент для создания mcp-серверов в 1с:предприятие путем разработки расширения конфигурации. позволяет интегрировать данные и функциональность 1с с ai-ассистентами (claude, cursor и т.д.). включает python-прокси и пример расширения 1с с готовыми и It connects AI assistants to external tools and data sources through a standardized interface.
How do I install 1C MCP?
Follow the installation instructions on the 1C MCP GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with 1C MCP?
1C MCP works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is 1C MCP free to use?
Yes, 1C MCP is open source and available under the MIT license. You can use it freely in both personal and commercial projects.
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