How to Set Up Grabbit MCP with Claude
Turn your AI into a shopping research assistant in under 2 minutes. Save products, compare prices, build collections — all by conversation.
What you get
When you connect Grabbit via MCP, your AI gets 21 shopping-specific tools. Instead of just searching the web and giving you links, it can actually do things:
- Save items from any URL — with title, price, image automatically extracted
- Search your Grabblist — "find the headphones I saved last week"
- Create collections — group items by project, occasion, or category
- Compare items — side-by-side across your saved products
- Link items — mark alternatives, complements, upgrades
- Track decisions — considering → shortlisted → decided → bought
- Set budgets — per collection, tracked against item prices
- View history — see every change made to an item or collection
Setup: Claude Desktop
Claude Desktop supports MCP natively. Here's how to connect Grabbit:
- Open Claude Desktop settings — Click your profile icon → Settings → MCP Servers (or Developer tab).
- Add a new MCP server — Click "Add Server" or edit the config file directly.
- Enter the server URL:https://mcp.grabbitapp.com/api/mcp
- Authorize — Claude will open a browser window. Sign in with your Grabbit account (Google or email). Click "Allow". Done.
- Test it — In a new Claude conversation, type: "What tools do you have from Grabbit?" Claude should list 21 tools.
Setup: claude.ai (browser)
Claude on the web (claude.ai) also supports MCP integrations:
- Go to claude.ai → Settings → Integrations
- Search for Grabbit or add by URL
- Authorize with your Grabbit account
- Start a new conversation — Grabbit tools are available
Your first conversation
Once connected, try these prompts to see what Grabbit MCP can do:
Getting started:
You: Save this product: https://www.amazon.com/dp/B0EXAMPLE
You: Show me everything in my Grabblist
You: Create a collection called "Home Office Setup" with a $500 budget
Research tasks:
You: Search my saved items for headphones
You: Compare the two monitors I saved — which is better value?
You: Find me 5 mechanical keyboards under $100 and save them
Organization:
You: Move the Sony headphones to my "Shortlisted" status
You: Link the Keychron K2 and K8 as alternatives
You: How much have I spent on items marked "bought"?
The 21 tools explained
| Tool | What it does |
|---|---|
| add_item | Save a product from any URL |
| get_wishlist | View all saved items with filters |
| get_item | Get details of a specific item |
| search_saved | Search your Grabblist by keyword |
| update_item | Change price, title, status, notes |
| update_price | Update price + set target price |
| delete_item | Remove an item (soft delete) |
| restore_item | Undelete a removed item |
| create_collection | Create a folder with optional budget |
| list_collections | See all your collections |
| update_collection | Rename, change budget, description |
| delete_collection | Remove collection (items stay) |
| add_to_collection | Put an item in a collection |
| remove_from_collection | Take an item out of a collection |
| link_items | Mark two items as related (alternative, complement, upgrade) |
| unlink_items | Remove a relationship |
| get_item_graph | See all links for an item |
| get_item_history | Audit log — every change to an item |
| get_collection_activity | Activity feed for a collection |
| set_pinned_items | Pin up to 3 "Top Picks" on share page |
| ask_agent | AI agent for complex queries |
Real use cases
People are using Grabbit MCP for all kinds of research projects:
- Custom drone builds — AI researches every component, saves options, compares prices across stores, tracks total BOM cost. Read the full guide →
- PC builds — CPU, GPU, RAM, mobo — AI checks compatibility and finds the best price for each slot.
- Price comparison — "Find me the cheapest flight to Bali in March" — AI searches, saves options, compares side by side.
- Gift lists — "I need gifts for 5 people, $50 budget each" — AI creates collections per person, finds options, tracks spending.
- Apartment hunting — Save rental listings, compare price per sqft, link alternatives, track which ones you've contacted.
Tips for better results
- Be specific with URLs — "Save https://amazon.com/dp/B0XYZ" works better than "save this headphone from Amazon". The AI can extract title, price, and image from the URL.
- Use collections early — Create a collection before saving items. It's easier to organize as you go than to sort 50 items later.
- Set budgets — Collections support budgets. The AI can tell you how much you've spent vs your target.
- Link alternatives — When comparing two products, ask the AI to link them as alternatives. This creates a relationship graph you can explore later.
- Use decision statuses — Move items through considering → shortlisted → decided → bought. Ask the AI "what's still in considering?" to see what needs attention.
Troubleshooting
Claude says it doesn't have Grabbit tools
Make sure you're in a new conversation after connecting. MCP tools load at conversation start. Also check that Grabbit shows as "connected" in your MCP settings.
Authorization fails
Try disconnecting and reconnecting. Make sure you're signing in with the same account you use on grabbitapp.com. If using Google sign-in, make sure pop-ups aren't blocked.
Items save but no price/image
Some websites block automated scraping. Try saving the URL directly through the Chrome extension instead — it parses the page client-side which works on more sites. The AI can still manage the item after it's saved.
Ready to connect your AI?
Free account. Free MCP. 21 tools. 2 minutes to set up.
FAQ
What is MCP?
Model Context Protocol (MCP) is an open standard that lets AI assistants connect to external tools and data. Instead of the AI guessing what's on a website, it gets direct access to structured tools — like Grabbit's 21 shopping endpoints.
Do I need to pay for MCP?
No. Grabbit MCP is free. You just need a Grabbit account (free) and a Claude account. No API keys, no developer setup, no monthly fees.
Does it work with Claude Free or only Pro?
It works with both. Claude Free and Claude Pro can connect to MCP servers. Pro gives you more messages per day, but the MCP connection itself is free.
Can I use both the extension and MCP at the same time?
Yes. The extension saves items when you browse. MCP lets your AI save and manage items by conversation. They share the same Grabblist — items saved by one appear in the other.
Is my data safe?
Grabbit stores your data in Supabase (PostgreSQL). The MCP connection uses OAuth 2.0 with PKCE — the same security standard used by Google and GitHub. Your AI never sees your password.
How many tools does the AI get?
The AI gets 21 tools: add_item, get_wishlist, search_saved, update_item, delete_item, create_collection, add_to_collection, link_items, compare items, set_pinned_items, get_item_history, and more. Full list at grabbitapp.com.
Can I use this for research, not just shopping?
Absolutely. People use Grabbit MCP for product research, price tracking, building BOMs (parts lists), comparing services, organizing rental options, tracking course prices, and more. Any URL with a title and price works.