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Unstorage MCP Server

by slow-groovin

Data/Storageunstoragekey-valuestorageredisfilesystemmongodbhttp

A Key-Value storage MCP server based on unjs/unstorage. It supports multiple drivers like memory, filesystem, Redis, HTTP, and MongoDB.

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Unstorage MCP Server

中文 README

A Key-Value storage MCP server based on unjs/unstorage.

Current support drivers:

  1. memory
  2. filesystem
  3. redis
  4. unstorage http server
  5. mongodb

Current tools:

  • showMounts()
  • getItem(key)
  • getItems(items)
  • getItemRaw(key)
  • getMeta(key, nativeOnly)
  • getKeys(base, maxDepth)
  • setItem(key, value)
  • setItems(items)
  • setItemRaw(key, value)
  • setMeta(key, meta)
  • removeItem(key, removeMeta)
  • removeMeta(key)

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install

minimal configuration

{
  "mcpServers": {
    "unstorage": {
      "command": "npx",
      "args": ["/y", "@slow-groovin/unstorage-mcp"]
    }
  }
}

maximum configuration

{
  "mcpServers": {
    "unstorage": {
      "command": "npx",
      "env": {
        "REDIS_URL": "redis://default:123456@localhost:6379",
        "REDIS_BASE": "visits:date:api:",
        "REDIS_MOUNT_POINT": "redis_storage",
        "FS_BASE": "D:/tmp",
        "FS_MOUNT_POINT": "fs_storage",
        "HTTP_BASE": "http://localhost:3001",
        "HTTP_MOUNT_POINT": "http_storage",
        "HTTP_HEADERS": "Authorization=Bear 123;A=3;B=4;C=5",
        "MONGODB_URL": "mongodb://root:123456@localhost:27017/",
        "MONGODB_DB_NAME": "test",
        "MONGODB_COLLECTION_NAME": "unstorage",
        "MONGODB_MOUNT_POINT": "mongo_storage"
      },
      "args": ["/y", "@slow-groovin/unstorage-mcp", "--disable-modify"]
    }
  }
}

for Cline+Windows:

{
  "mcpServers": {
    "unstorage": {
      "command": "cmd",
      "args": ["/c", "npx", "/y", "@slow-groovin/unstorage-mcp"]
    }
  }
}

If you have problem of installation on Windows, you can refrer to this article

args

--disable-modify

Default: false

Disable tools with modify functionality like setItem, setItems ...

environment variables

for the concept of base and mountpoint, please refer to the doc of unstorage

redis

if REDIS_URL is set, a redis storage will be mounted

| Syntax | Description | Default Value | Optional | | ----------------------- | -------------------------------------------------------------- | ------------- | -------- | | REDIS_URL | redis connect url, eg: redis://default:123456@localhost:6379 | | | | REDIS_BASE | base of redisDriver | | ✅ | | REDIS_MOUNT_POINT | mountpoint of this storage | "/" | ✅ |

mongodb

if MONGODB_URL is set, a mongodb storage will be mounted

| Syntax | Description | Default Value | Optional | | ----------------------------- | -------------------------------------------------------- | ------------- | -------- | | MONGODB_URL | mongodb connect url, eg: mongodb://user:pass@host:port | | | | MONGODB_DB_NAME | mongodb database name, eg: test | | | | MONGODB_COLLECTION_NAME | mongodb collection name, eg: mycollection | | | | MONGODB_MOUNT_POINT | mountpoint of this storage | "/" | ✅ |

filesystem

if FS_BASE is set, a redis storage will be mounted

| Syntax | Description | Default Value | Optional | | -------------------- | ------------------------------------ | ------------- | -------- | | FS_BASE | base of fsDriver, path of filesystem | | | | FS_MOUNT_POINT | mountpoint of this storage | "/" | ✅ |

http server

if HTTP_BASE is set, a http storage will be mounted

| Syntax | Description | Default Value | Optional | | ---------------------- | --------------------------------------------------------------- | ------------- | -------- | | HTTP_BASE | base of httpDriver, endpoint of http server | | | | HTTP_MOUNT_POINT | mountpoint of this storage | "/" | ✅ | | HTTP_HEADERS | headers for http requests, eg: Authorization=Bear 123;A=1;B=2 | | ✅ |

memory

If there is no mount on root("/"), a memory driver will be mounted automatically on "/" (same behaviour of unstorage).

extend guide

  1. clone this repo
  2. copy src/storage/redis.ts to a new file and modify it to your desired driver(unjs/unstorage is super easy to learn)
  3. test and verify that it is effective
  4. (optional) pull a merge request

If you are not a typescript developer, please submit a issue to ask for other drivers support.

prompts for cursor/cline assisted programming

@/src/storage/mongodb.ts , please implement this file:
1. you need to fetch information using the storage type's corresponding Doc URL (https://unstorage.unjs.io/drivers/<storage type>).
2. you can refer to examples in @/src/adapter/redis.ts and @/src/storage/http.ts.
3. You are only responsible for generating the code and do not need to perform testing.

If you have not installed fetch MCP server, delete the first sentence

debug approaches

mcp-inspector

 mcp-inspector -e HTTP_BASE=http://localhost:3001 -e HTTP_MOUNT_POINT=http_storage -e FS_BASE=D:/temp -e FS_MOUNT_POINT=fs_storage -e HTTP_HEADERS="Authorization=Bear 123;" tsx ./src/index.ts

tsx mcpServer Config for local dev

{
  "mcpServers": {
    "command": "cmd",
    "env": {
      "REDIS_URL": "redis://default:123456@localhost:6379",
      "REDIS_BASE": "my:mcp:values:",
      "REDIS_MOUNT_POINT": "redis_storage"
    },
    "args": ["/c", "tsx", "D:/xxx/projects/unstorage-mcp/src/index.ts"]
  }
}

restarting server is needed to make changes take effect