XiYan

XiYan MCP Server

A Model Context Protocol (MCP) server that enables natural language queries to databases
_{powered by XiYan-SQL, SOTA of text-to-sql on open benchmarks}

Features

🌐 Fetch data by natural language through XiYanSQL
🤖 Support general LLMs (GPT,qwenmax), Text-to-SQL SOTA model
💻 Support pure local mode (high security!)
📝 Support MySQL and PostgreSQL.
🖱️ List available tables as resources
🔧 Read table contents

Preview

Architecture

There are two ways to integrate this server in your project, as shown below: The left is remote mode, which is the default mode. It requires an API key to access the xiyanSQL-qwencoder-32B model from service provider (see Configuration). Another mode is local mode, which is more secure. It does not require an API key.

Best practice

Build a local data assistant using MCP + Modelscope API-Inference without writing a single line of code

Tools Preview

The tool get_data provides a natural language interface for retrieving data from a database. This server will convert the input natural language into SQL using a built-in model and call the database to return the query results.
The {dialect}://{table_name} resource allows obtaining a portion of sample data from the database for model reference when a specific table_name is specified.
The {dialect}:// resource will list the names of the current databases

Installation

Installing from pip

Python 3.11+ is required. You can install the server through pip, and it will install the latest version:

1pip install xiyan-mcp-server

After that you can directly run the server by:

1python -m xiyan_mcp_server

But it does not provide any functions until you complete following config. You will get a yml file. After that you can run the server by:

1env YML=path/to/yml python -m xiyan_mcp_server

Installing from Smithery.ai

See @XGenerationLab/xiyan_mcp_server

Not fully tested.

Configuration

You need a YAML config file to configure the server. A default config file is provided in config_demo.yml which looks like this:

1model:
2  name: "XGenerationLab/XiYanSQL-QwenCoder-32B-2412"
3  key: ""
4  url: "https://api-inference.modelscope.cn/v1/"
5
6database:
7  host: "localhost"
8  port: 3306
9  user: "root"
10  password: ""
11  database: ""

LLM Configuration

Name is the name of the model to use, key is the API key of the model, url is the API url of the model. We support following models.

| versions | general LLMs(GPT,qwenmax) | SOTA model by Modelscope | SOTA model by Dashscope | Local LLMs | |----------|-------------------------------|--------------------------------------------|-----------------------------------------------------------|-----------------------| | description| basic, easy to use | best performance, stable, recommand | best performance, for trial | slow, high-security | | name | the official model name (e.g. gpt-3.5-turbo,qwen-max) | XGenerationLab/XiYanSQL-QwenCoder-32B-2412 | xiyansql-qwencoder-32b | xiyansql-qwencoder-3b | | key | the API key of the service provider (e.g. OpenAI, Alibaba Cloud) | the API key of modelscope | the API key via email | "" | | url | the endpoint of the service provider (e.g."https://api.openai.com/v1") | https://api-inference.modelscope.cn/v1/ | https://xiyan-stream.biz.aliyun.com/service/api/xiyan-sql | http://localhost:5090 |

General LLMs

If you want to use the general LLMs, e.g. gpt3.5, you can directly config like this:

1model:
2  name: "gpt-3.5-turbo"
3  key: "YOUR KEY "
4  url: "https://api.openai.com/v1"
5database:

If you want to use Qwen from Alibaba, e.g. Qwen-max, you can use following config:

1model:
2  name: "qwen-max"
3  key: "YOUR KEY "
4  url: "https://dashscope.aliyuncs.com/compatible-mode/v1"
5database:

Text-to-SQL SOTA model

We recommend the XiYanSQL-qwencoder-32B (https://github.com/XGenerationLab/XiYanSQL-QwenCoder), which is the SOTA model in text-to-sql, see Bird benchmark. There are two ways to use the model. You can use either of them. (1) Modelscope, (2) Alibaba Cloud DashScope.

(1) Modelscope version

You need to apply a key of API-inference from Modelscope, https://www.modelscope.cn/docs/model-service/API-Inference/intro Then you can use the following config:

1model:
2  name: "XGenerationLab/XiYanSQL-QwenCoder-32B-2412"
3  key: ""
4  url: "https://api-inference.modelscope.cn/v1/"

Read our model description for more details.

(2) Dashscope version

We deployed the model on Alibaba Cloud DashScope, so you need to set the following environment variables: Send me your email to get the key. ( [email protected] ) In the email, please attach the following information:

1name: "YOUR NAME",
2email: "YOUR EMAIL",
3organization: "your college or Company or Organization"

We will send you a key according to your email. And you can fill the key in the yml file. The key will be expired by 1 month or 200 queries or other legal restrictions.

1model:
2  name: "xiyansql-qwencoder-32b"
3  key: "KEY"
4  url: "https://xiyan-stream.biz.aliyun.com/service/api/xiyan-sql"
5database:

Note: this model service is just for trial, if you need to use it in production, please contact us.

Alternatively, you can also deploy the model XiYanSQL-qwencoder-32B on your own server.

Local Model

Note: the local model is slow (about 12 seconds per query on my macbook). If you need a stable and fast service, we still recommend to use the modelscope version.

To run xiyan_mcp_server in local mode, you need

a PC/Mac with at least 16GB RAM
6GB disk space

Step 1: Install additional Python packages

1pip install flask modelscope torch==2.2.2 accelerate>=0.26.0 numpy=2.2.3

Step 2: (optional) manually download the model We recommend xiyansql-qwencoder-3b. You can manually download the model by

1modelscope download --model XGenerationLab/XiYanSQL-QwenCoder-3B-2502

It will take you 6GB disk space.

Step 3: download the script and run server. src/xiyan_mcp_server/local_xiyan_server.py

1python local_xiyan_server.py

The server will be running on http://localhost:5090/

Step 4: prepare config and run xiyan_mcp_server the config.yml should be like:

1model:
2  name: "xiyansql-qwencoder-3b"
3  key: "KEY"
4  url: "http://127.0.0.1:5090"

Till now the local mode is ready.

Database Configuration

host, port, user, password, database are the connection information of the database.

You can use local or any remote databases. Now we support MySQL and PostgreSQL(more dialects soon).

MySQL

1database:
2  host: "localhost"
3  port: 3306
4  user: "root"
5  password: ""
6  database: ""

PostgreSQL

Step 1: Install Python packages

1pip install psycopg2

Step 2: prepare the config.yml like this:

1database:
2  dialect: "postgresql"
3  host: "localhost"
4  port: 5432
5  user: ""
6  password: ""
7  database: ""

Note that dialect should be postgresql for postgresql.

Launch

Claude Desktop

Add this in your Claude Desktop config file, ref Claude Desktop config example

1{
2    "mcpServers": {
3        "xiyan-mcp-server": {
4            "command": "python",
5            "args": [
6                "-m",
7                "xiyan_mcp_server"
8            ],
9            "env": {
10                "YML": "PATH/TO/YML"
11            }
12        }
13    }
14}

Cline

Prepare the config like Claude Desktop

Goose

Add following command in the config, ref Goose config example

1env YML=path/to/yml python -m xiyan_mcp_server

Cursor

Use the same command like Goose.

Witsy

Add following in command:

1python -m xiyan_mcp_server

Add an env: key is YML and value is the path to your yml file. Ref Witsy config example

It Does Not Work!

Citation

If you find our work helpful, feel free to give us a cite.

1@article{xiyansql,
2      title={A Preview of XiYan-SQL: A Multi-Generator Ensemble Framework for Text-to-SQL}, 
3      author={Yingqi Gao and Yifu Liu and Xiaoxia Li and Xiaorong Shi and Yin Zhu and Yiming Wang and Shiqi Li and Wei Li and Yuntao Hong and Zhiling Luo and Jinyang Gao and Liyu Mou and Yu Li},
4      year={2024},
5      journal={arXiv preprint arXiv:2411.08599},
6      url={https://arxiv.org/abs/2411.08599},
7      primaryClass={cs.AI}
8}

Contents