Fluf MCP Server

fluf-mcp — FLUF Connect for AI agents

A Model Context Protocol server that lets an AI agent (Claude, Cursor, Windsurf, Cline, and anything else that speaks MCP) work a FLUF Connect account: read inventory, list items across marketplaces, read orders, ask FLUF's own assistant a question, and raise a support ticket.

One account, one token, every marketplace you've connected — the agent never has to learn a per-marketplace API, and never handles your marketplace credentials.

Six tools are the primitives. Five recipes are the outcomes — named workflows that chain the tools in the right order, surfaced in your client as slash commands. Most people want a recipe.

Recipes

Recipes ship as MCP prompts. In Claude Desktop and Claude Code they appear as slash commands; in Cursor and other clients, in the prompt picker.

Every argument is optional unless marked, and every recipe has a sensible default — /dead_stock on its own works.

/dead_stock period="30 days" limit=10
/morning_sales compare=previous_week
/expansion channel=vinted batch_size=25

Two things the recipes are deliberately strict about, because getting them wrong is how an agent loses a seller's trust:

• Nothing gets listed without confirmation. dead_stock and expansion research and recommend; they call crosslist only after you say yes.
• Queued is reported as queued. Extension-first channels finish in your own browser, so an item can be accepted but not yet live. The recipes say so rather than claiming success, and they don't re-push (a repeat can duplicate the listing).

Tools

Get a token

Create one at https://fluf.io/connect/developers — in FLUF Connect that's More → Developers in the left sidebar. It's shown once, so store it like a password. Revoke it on the same screen any time.

You need a FLUF Connect account on an active plan; the API is a paid feature.

Install

Two ways in. Pick the first unless you have a reason not to.

Claude Desktop — one click, no Node (recommended)

Download fluf-mcp-<version>.mcpb from the latest release and open it. Claude Desktop shows an install dialog, asks for your token in a form field, and that's it — no terminal, no JSON, and no Node install: Claude Desktop ships its own Node runtime and uses it for installed bundles.

Everything else — npx

For Cursor, Claude Code, Windsurf, Cline, or if you'd rather manage it yourself. This route does need Node 18+ on your machine — the runtime bundled with Claude Desktop is only used for installed .mcpb bundles, not for claude_desktop_config.json entries, which spawn command from your system PATH.

npm install -g fluf-mcp

Configure

Only needed for the npx route — the .mcpb bundle configures itself.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "fluf": {
      "command": "npx",
      "args": ["-y", "fluf-mcp"],
      "env": { "FLUF_API_TOKEN": "fluf_pat_..." }
    }
  }
}

Claude Code

claude mcp add fluf --env FLUF_API_TOKEN=fluf_pat_... -- npx -y fluf-mcp

Cursor

~/.cursor/mcp.json (or a per-project .cursor/mcp.json):

{
  "mcpServers": {
    "fluf": {
      "command": "npx",
      "args": ["-y", "fluf-mcp"],
      "env": { "FLUF_API_TOKEN": "fluf_pat_..." }
    }
  }
}

Environment variables

Using it

Reach for a recipe when you want an outcome — they encode the tool order and the caveats. Otherwise ask in plain language and the agent picks the tools:

"What have I got in stock that isn't on eBay yet? List the ten cheapest."

"Show me everything that sold last week and which channel it sold on."

"Why did my last five Vinted listings fail?"

Three things worth knowing:

• Always call list_channels first. The available marketplaces differ per account and change over time; don't hardcode a list.
• crosslist is not always instant. Some channels are handed to your own browser session to complete, so the response may say queued rather than listed. Read the per-channel status; don't assume success.
• ask_intesa is the slow, clever one. It hands the question to Intesa, the assistant inside FLUF, which runs its own multi-step investigation before answering — so it can explain why something happened, not just report what is. Replies can take up to a minute. Use the direct tools for simple reads; reach for this when the question is diagnostic or open-ended.

Develop

npm install
npm run build
FLUF_API_TOKEN=... node dist/index.js

Smoke-test without an MCP client:

echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' \
  | FLUF_API_TOKEN=... node dist/index.js

echo '{"jsonrpc":"2.0","id":1,"method":"prompts/list"}' \
  | FLUF_API_TOKEN=... node dist/index.js

Recipes live in src/prompts.ts — one entry in RECIPES per recipe, no registration step. They're plain text aimed at the agent, so editing one needs no client change.

Support

info@fluf.io

License

MIT — see LICENSE. © FLUF.io.

The server itself is open; the account it talks to is not. You'll still need a FLUF Connect account on an active plan for any of it to do anything.