# InfluxDB MCP Server

A Model Context Protocol (MCP) server that provides secure, read-only access to InfluxDB 1.8 via JWT authentication.

## Overview

InfluxDB MCP Server allows AI assistants to query time-series data stored in InfluxDB through a standardized interface. It provides read-only access to your InfluxDB instance with authentication via JWT tokens.

## Prerequisites

- Docker
- InfluxDB 1.8 instance (already running)
- Credentials for your InfluxDB instance

## Installation

1. **Clone the repository**:
   ```bash
   git clone https://github.com/m4tyn0/influx_mcp
   cd influxdb-mcp-server
   ```

2. **Create a `.env` file** with your configuration :
   ```bash
   cp env.example .env
   ```
   ```
   INFLUXDB_HOST=
   INFLUXDB_PORT=8086
   INFLUXDB_USERNAME=
   INFLUXDB_PASSWORD=
   INFLUXDB_SSL=false
   INFLUXDB_VERIFY_SSL=true
   INFLUXDB_TIMEOUT=10
   JWT_SECRET=
   JWT_ALGORITHM=HS256
   ```

3. **Build and run the Docker container**:
   ```bash
   docker build -t influxdb-mcp-server .
   docker run -d --env-file .env -p 8000:8000 influxdb-mcp-server
   ```

## JWT Authentication

The server uses JWT tokens for authentication. You need to generate a token to authenticate with the MCP server, here is a simple script to do that:

```python
import jwt
import datetime

# Create a token
payload = {
    "sub": "username",  # Replace with the username you want to identify with
    "iat": datetime.datetime.utcnow(),
    "exp": datetime.datetime.utcnow() + datetime.timedelta(hours=1)
}
token = jwt.encode(payload, "your-jwt-secret", algorithm="HS256")
print(token)
```

Save this token for use with your MCP client.

## Using with MCP Clients

1. **Authenticate** with the MCP server using the JWT token:
   ```
   Tool: auth
   Arguments: {"token": "your.jwt.token.here"}
   ```

2. **Query your InfluxDB data**:
   ```
   Tool: list_databases
   Arguments: {}
   ```
   ```
   Tool: list_measurements
   Arguments: {"database": "your_database_name"}
   ```
   ```
   Tool: query
   Arguments: {
     "database": "your_database_name",
     "query": "SELECT * FROM measurement_name LIMIT 10"
   }
   ```

## Troubleshooting

If you encounter issues:

1. **Connection errors to InfluxDB**:
   - Verify the INFLUXDB_HOST is correct and accessible from the Docker container
   - Check that your InfluxDB credentials are correct
   - Ensure your InfluxDB instance is configured to accept connections from external hosts

2. **Authentication issues**:
   - Verify your JWT_SECRET is set correctly
   - Ensure the token you're using matches the JWT_SECRET and hasn't expired
   - Check that your InfluxDB credentials have read access to the databases

3. **Check logs**:
   ```bash
   docker logs 
   ```

## Security Notes

- The MCP server only allows read-only access to your InfluxDB instance
- All queries are validated to ensure they begin with SELECT
- JWT authentication protects access to the MCP server
- Consider running the server in a private network for additional security


#### Thank you for working with me. If you have any issues with the code, or want more things built, hit me up: m4tyn0@gmail.com