# Yzel — 1C:Enterprise

MCP server connecting AI assistants to 1C:Enterprise systems via OData v3. Useful for querying records across on-premise and 1C:Fresh cloud setups.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 5
- Author: Aiyo28
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/Aiyo28/yzel
- Updated: 2026-10-21
- HTML: https://affpapa.org/en/nevibecode/mcp/yzel-1centerprise

## What it does

This server enables language models to inspect and query 1C:Enterprise environments over OData v3 with basic authentication. It parses `$metadata` using a streaming approach designed for large ERP schemas. It properly handles native Cyrillic entity names without requiring manual aliasing.

Credentials reside locally inside an AES-256 encrypted SQLite store at `~/.yzel/store.db`. The tool requires Python 3.11 or higher. Without exposed OData endpoints on your 1C instance, the connector cannot discover schemas or fetch records.

## Requirements
- Needs: Python and uv (commands run via uvx)
- Environment variables: `YZEL_KEY` — keys and tokens: ask the human for the values, never commit them or put them in shared files.

## Install

### Claude Code (native platform)

**Platform CLI**
```bash
claude mcp add yzel -e YZEL_KEY=<YZEL_KEY> -- uvx yzel
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from yzel <command>

### Codex

**Platform CLI**
```bash
codex mcp add yzel-1centerprise --env YZEL_KEY=<YZEL_KEY> -- uvx yzel
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from yzel <command>

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "yzel-1centerprise": {
            "command": "uvx",
            "args": [
                "yzel"
            ],
            "env": {
                "YZEL_KEY": "<YZEL_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from yzel <command>

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "yzel-1centerprise": {
            "type": "stdio",
            "command": "uvx",
            "args": [
                "yzel"
            ],
            "env": {
                "YZEL_KEY": "<YZEL_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from yzel <command>

### Gemini CLI

**Platform CLI**
```bash
gemini mcp add -e YZEL_KEY=<YZEL_KEY> yzel-1centerprise uvx yzel
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from yzel <command>

## When to use it
- retrieve records and document entries from 1C:Enterprise over OData v3
- inspect configuration schemas containing native Cyrillic identifiers
- query business data from 1C:Fresh cloud deployments
- parse large enterprise data schemas via streaming metadata inspection

## Example prompts
- Show the last ten sales invoices from 1C for this week grouped by customer
- Look up current stock levels in 1C for item code 48201
- Check outstanding balances for the specified client across open contracts in 1C

---
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