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)

• Unstorage MCP Server
  • install
  • args
  • environment variables
    • redis
    • mongodb
    • filesystem
    • http server
    • memory
  • extend guide
    • prompts for cursor/cline assisted programming
  • debug approaches
    • mcp-inspector
    • tsx mcpServer Config for local dev

install

{
  "mcpServers": {
    "unstorage": {
      "command": "npx",
      "env": {
        "REDIS_URL": "redis://default:123456@localhost:6379",
        "REDIS_BASE": "my:mcp:values:",
        "REDIS_MOUNT_POINT": "redis_storage"
      },
      "args": ["/y", "@slow-groovin/unstorage-mcp", "--disable-modify"]
    }
  }
}

for Cline+Windows:

{
  "mcpServers": {
    "unstorage": {
      "command": "cmd",
      "env": {
        "REDIS_URL": "redis://default:123456@localhost:6379",
        "REDIS_BASE": "my:mcp:values:",
        "REDIS_MOUNT_POINT": "redis_storage"
      },
      "args": [
        "/c",
        "npx",
        "/y",
        "@slow-groovin/unstorage-mcp",
        "--disable-modify"
      ]
    }
  }
}

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