Swiss GroceriesSAFE
MCP server for Swiss grocery stores: Migros, Coop, Aldi, Denner, Lidl
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
swissgroceries-mcp
Real-time Swiss grocery shopping over the Model Context Protocol. Search products, compare prices across Migros, Coop, Aldi, Denner, Lidl, Farmy, Volgshop, and Otto's, see weekly promotions, and plan multi-store shopping trips. Works with any MCP-compatible client (Claude Desktop, Claude Code, Cursor, Cline, Continue, VS Code MCP extensions, custom clients).
Disclaimer This is a personal fun project. It is not affiliated with, endorsed by, or sponsored by Migros, Coop, Aldi, Denner, Lidl, Farmy, Volg, Otto's, or any other retailer. It uses publicly
18c9e2b72581OBSERVED · 2026-10-09Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.
claude mcp add swissgroceries-mcp --env DENNER_JWT=${DENNER_JWT} -- npx -y @nicktcode/[email protected]Exposed tools (12)
12 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
category | read | Optional product category or keyword to focus on (e.g. |
chains | read | Optional comma-separated chain list (e.g. |
cheapest_recipe_ingredients | read | Given a recipe (list of ingredients with quantities, or a recipe URL), find the cheapest place to buy each ingredient across all configured Swiss grocery chains and produce a consolidated shopping plan. |
compare_basket_across_chains | read | Compare the cost of a shopping basket across all configured Swiss grocery chains and recommend where to shop. Returns a per-chain total, identifies which chain is cheapest for each item, and produces a multi-store split-cart plan if it materially beats single-store shopping. |
health_check | read | Probe each registered chain adapter with a trivial query and report status, latency, and capability flags. Use this when a chain seems missing from results or when debugging adapter problems. |
ingredients | read | Required if no |
items | read | Required. Comma-separated list of items with optional quantities (e.g. |
near | read | Optional Swiss ZIP or city to weight results geographically (e.g. |
preferred_chain | read | Optional chain whose price the others should be benchmarked against (e.g. |
recipe_url | read | Optional URL of a recipe page to fetch and parse. If provided, extract the ingredient list from the page first. |
servings | read | Optional number of servings to scale to. If the recipe is for 4 and you want 6, pass |
weekly_deals_digest | read | Summarise this week\ |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (5 observation(s))
- Network
- declared (9 observation(s))
- Shell
- declared (1 observation(s))
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (8)
import { httpJson } from '../../util/http.js';import { ok, err } from '../../util/adapter-result.js';import { haversineKm } from '../../util/haversine.js';import { computeUnitPrice } from '../../util/unit-price.js';import { annotateMultipack } from '../../util/multipack.js';@modelcontextprotocol/sdk, migros-api-wrapper, zod, zod-to-json-schema, @types/node, tsx, typescript, vitest
tests/fixtures/denner/content-full.json
tests/fixtures/denner/stores.json
Gates applied: no_behavioural_pass.
18c9e2b72581full audit observations/trust-audit/mcp-server/nicktcode__swiss-groceries.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-09 | 18c9e2b72581 | SAFE | B | 89 | first audit |
Questions
What is the Swiss Groceries MCP server?
MCP server for Swiss grocery stores: Migros, Coop, Aldi, Denner, Lidl
What tools does Swiss Groceries expose?
12 in total: 12 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Swiss Groceries safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does Swiss Groceries need?
It reads DENNER_JWT from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.
How does Swiss Groceries run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as @nicktcode/swissgroceries-mcp at 0.9.0.
How current is this page?
The grade is for one exact copy of the source (18c9e2b72581), read on 2026-10-09. The repository is watched and re-audited when it changes.