Pepesto MCP Server

MCP server for the Pepesto API — match recipes to real supermarket products across 26 European supermarkets. The MCP focuses on the recipe → matched cart half of the workflow (parse / search / map ingredients to SKUs / check catalogs); for actually placing the order, hand the user off to the Pepesto app where they can review and check out.

Quick install

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "pepesto": {
      "command": "npx",
      "args": ["-y", "@pepesto/pepesto-mcp"],
      "env": { "PEPESTO_API_KEY": "pep_sk_…" }
    }
  }
}

Claude Code

claude mcp add pepesto -e PEPESTO_API_KEY=pep_sk_… -- npx -y @pepesto/pepesto-mcp

API cost guidance

Every Pepesto call drives live supermarket data and LLM processing — there is no free tier. Credits don't expire, and students or early-stage teams can reach out for a discount. Per-call pricing and volume discounts: https://www.pepesto.com/pricing/.

To keep the bill predictable:

• pepesto_catalog is the most expensive call. Use it only when the user has explicitly asked for a catalog dump or market analysis, and cache the result for at least a day per supermarket. Most users who reach for /catalog early on don't actually need it — tell us about your use case and we'll usually suggest a cheaper path.
• pepesto_credits is free; call it from your agent for a balance read-out.

Getting an API key

1. Start with a pay-as-you-go credit pack — see https://www.pepesto.com/pricing/.

2. Mint an API key by calling /link with the email you used at checkout. The key is returned only once — store it immediately.

   curl -X POST https://s.pepesto.com/api/link \
     -H "Content-Type: application/json" \
     -d '{"email":"you@example.com"}'
   

3. Set the key in your environment:

   export PEPESTO_API_KEY=pep_sk_…
   

Tools

The MCP stops at "matched cart with prices." For actual checkout (review, payment, delivery), users continue in the Pepesto app — open the redirect_url returned by pepesto_oneshot, or hand the user the matched-product list from pepesto_products and tell them to recreate it there. /session, /checkout, and /link are intentionally not wrapped; see Roadmap for what's planned.

Example conversations

Quick: recipe URL → matched cart, hand off to Pepesto app

The fastest path. One tool call, one link to the Pepesto app where the user finishes checkout.

User: Use the BBC Good Food pizza margherita recipe to build a Tesco cart, and also add sparkling water and olive oil.

Assistant: [Uses pepesto_oneshot with content_urls, content_text, supermarket_domain: "tesco.com"]

Assistant: Cart matched. Open this link in the Pepesto app to review and check out at Tesco: <redirect_url>.

Browse the recipe graph → pick → matched cart

For "find me something to cook" prompts, where the agent searches Pepesto's recipe graph first and returns matched products with prices.

User: Find me a vegan pasta recipe for two.

Assistant: [Uses pepesto_suggest with query: "vegan pasta dinner for two"]

Assistant: Three options: Creamy Cashew Penne, Lemon Garlic Spaghetti, Roasted Veg Rigatoni. Which would you like?

User: Go with the first one. Shop it at Coop (coop.ch).

Assistant: [Uses pepesto_products with the chosen recipe's kg_token and supermarket_domain: "coop.ch"]

Assistant: I matched 8 ingredients at Coop — cashews CHF 4.20, penne CHF 1.95, ... — total CHF 18.40. To check out, open the Pepesto app and search for Creamy Cashew Penne (or paste the recipe link).

Parse a specific recipe → matched cart

When the user already has a recipe URL or text in mind. The MCP returns the matched product list; the user finishes in the app.

User: Parse this and break out the ingredients: https://www.bbcgoodfood.com/recipes/pizza-margherita-4-easy-steps

Assistant: [Uses pepesto_parse with recipe_url]

Assistant: Pizza Margherita in 4 easy steps — 8 ingredients: strong bread flour, fast-action yeast, ...

User: Now match those to Sainsbury's products.

Assistant: [Uses pepesto_products with the returned kg_token and supermarket_domain: "sainsburys.co.uk"]

Assistant: Matched 8 ingredients at Sainsbury's — total £6.40. Open the Pepesto app to check out at Sainsbury's, or use the cart preview yourself on sainsburys.co.uk.

Weekly meal plan → one merged matched cart

Multiple kg_tokens through pepesto_products in a single call — Pepesto merges duplicated ingredients across recipes.

User: Plan 5 keto dinners for the week and match them at Delhaize.

Assistant: [Uses pepesto_suggest with query: "keto dinner low carb high protein", num_to_fetch: 5]

Assistant: Five dinners: Steak & Kale, Salmon Avocado Bowl, Zucchini Lasagna, Cauliflower Risotto, Chicken Caesar.

User: Build one shopping list that covers the whole week.

Assistant: [Uses pepesto_products with all five kg_tokens and supermarket_domain: "delhaize.be"]

Assistant: Combined match: 24 unique ingredients (some shared across recipes), estimated total €68.40 at Delhaize. To turn this into an actual basket, open the Pepesto app — the recipes you picked are searchable there.

Compare prices across two supermarkets

Run the same recipe through pepesto_products for each market and compare totals.

User: Parse this Sunday lunch recipe.

Assistant: [Uses pepesto_parse]

Assistant: Got it: Italian Sunday Lunch, 12 ingredients.

User: Show me the cart at both Esselunga and Conad so I can compare.

Assistant: [Uses pepesto_products twice — supermarket_domain: "spesaonline.esselunga.it", then supermarket_domain: "spesaonline.conad.it"]

Assistant: Esselunga: €34.20. Conad: €31.50. Conad is €2.70 cheaper, mostly on pasta and tomatoes.

Catalog dump for market analysis

Last resort, only on explicit request. Cache aggressively — see Cost guidance above.

User: I'm building a price-comparison dashboard. Pull the full Plus NL catalog.

Assistant: Heads up — pepesto_catalog is the most expensive call here. I'll only run it once; you should cache the result for at least a day. Confirm?

User: Yes.

Assistant: [Uses pepesto_catalog with supermarket_domain: "plus.nl"]

Assistant: Catalog dumped: 1,847 SKUs across 23 categories.

Supported supermarkets

Need a supermarket that isn't on this list? Contact Pepesto.

Where checkout actually happens

This MCP stops at "matched cart with prices." It does not automate placing the order on the supermarket's website. Two ways to finish the trip:

• Pepesto app (recommended). Open the redirect_url returned by pepesto_oneshot in a browser, or hand the user the matched-product list from pepesto_products and tell them to recreate it in the Pepesto app — that's where the hosted checkout flow lives, including login, basket review, and (for some markets) payment.
• The supermarket's own site. The user can take the matched product list from pepesto_products and add the SKUs directly on tesco.com / coop.ch / etc. Slower, but no Pepesto account needed.

Roadmap

Planned to follow:

• pepesto_session — wrap /session so an agent can build a Pepesto-side checkout session from selected SKUs.
• pepesto_checkout — wrap /checkout, the turn-by-turn browser-automation loop that drives the supermarket's own site (login, add-to-basket, prompt-for-CAPTCHA, etc.). This is the missing piece for fully autonomous shopping.
• Hosted-checkout handoff — surface the Pepesto-app deep link as a structured tool result (instead of free text), so MCP clients can render it as a button instead of a URL.

If any of these would unblock you, tell us — it'll move them up the queue.

Development

git clone https://github.com/pepesto-solutions/pepesto-mcp.git
cd pepesto-mcp
npm install
npm run build
npm test
npm run test:coverage

Run the inspector against the local build:

PEPESTO_API_KEY=pep_sk_… npm run inspector

License

The Pepesto MCP server in this repository is licensed under the MIT License.