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Directory / CommerceBook
CommerceBook
by commercebook.ai · https://commercebook.ai/mcp
Search and buy products from sellers and verified warehouses, sell surplus stock, post requests.
12 of 12 checks · 27 Oct 2026
Is CommerceBook MCP server safe?
- No hidden instructions were found in its tool descriptions.
- Its error messages showed no secrets or internal details.
- 36 of its 60 tools are labeled read-only; the others may change or send things.
- Overall it scored 84/100 on 27 Oct 2026.
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What it can do
60 tools, in the server's own words.
signup_startPOST /signup/start: asks to open a CommerceBook account for the owner.
signup_confirmPOST /signup/confirm: the email and the 8-digit code the owner read in the email.
commercebook_network_nowread-onlyGET /network/now (no key needed): verified members, leads listed in the last 7 days, prices posted and savings confirmed this month, cached 15 minutes.
network_nowread-onlyThe older name of commercebook_network_now, kept so agents that call it keep working.
instructionsread-onlyGET /instructions with no key: the briefing of the role asked for (role buyer, seller or warehouse; buyer when left out): what CommerceBook does for that role,…
commercebook_feedbackPOST /feedback: a note on a tool or a page, what happened and what would have helped, with an optional rating from 1 to 5.
commercebook_market_searchread-onlyGET /market/search: the products for sale on CommerceBook, by words (every word must match a whole word, with an optional plural ending, so stretch never match…
commercebook_market_lotread-onlyGET /market/lots/{id}: one public product (lot_id) as its product page shows it (the count, the condition, the date the seller last confirmed the count, the ph…
commercebook_market_sellerread-onlyGET /market/sellers/{slug} (seller_slug, or slug, its older name): the record CommerceBook computes for one seller (seller_slug of a search item or a product):…
commercebook_market_intentsread-onlyGET /market/intents: the demand side of the book.
commercebook_market_bookread-onlyGET /market/book: what is on the market and what buyers ask for, by category, with live numbers only.
commercebook_request_reachread-onlyGET /market/intents/reach: before posting, how many sellers a public request in the category would be emailed to (each with a live product there, or watching t…
commercebook_market_shipping_estimateread-onlyGET /market/lots/{id}/shipping: the lowest and highest shipping of one product to a state, from the seller’s shipping rules (no carrier call).
commercebook_seller_capabilitiesread-onlyGET /seller/capabilities: every seller capability on CommerceBook in one read, grouped as ways_to_offer (a standing offer, price by quantity, quote on request …
commercebook_whoamiread-onlyNeeds a buyer key (no activity needed).
commercebook_meread-onlyNeeds a buyer key (no activity needed).
commercebook_my_standingread-onlyNeeds a buyer key (no activity needed).
commercebook_openapiread-onlyNeeds a buyer key (no activity needed).
commercebook_leads_openread-onlyNeeds a warehouse key (Leads: Can read).
commercebook_leads_mineread-onlyNeeds a warehouse key (Leads: Can read).
commercebook_lead_postNeeds a warehouse key (Leads: Can act).
commercebook_lead_claimNeeds a warehouse key (Payments: Can act).
commercebook_deals_listread-onlyNeeds a warehouse key (CRM: Can read).
commercebook_deal_createNeeds a warehouse key (CRM: Can act).
and 36 more
Test results
Safe mode: only tools labeled read-only were run. How the test works
- !Ready for the newest MCP versionnote
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
- !Every tool is describednote
175 warnings
- !signup_start: Inputs with no description: kind, city, state, services, sqft
- !signup_confirm: Inputs with no description: email, code
- !commercebook_feedback: Inputs with no description: what_happened, what_would_help, rating
- !commercebook_market_search: Inputs with no description: min_price, max_price, condition, limit
- !commercebook_market_lot: Inputs with no description: lot_id
- !commercebook_market_intents: Inputs with no description: limit
- !commercebook_request_reach: Inputs with no description: qty
- !commercebook_market_shipping_estimate: Inputs with no description: qty
- and 32 more
- !Tools are labeled safe or dangerousnote
1 warning
- !commercebook_shipping_profile_delete: Name sounds like it deletes something, but it is not labeled dangerous
- !Follows MCP best practices (not scored yet)note
2 tips (not scored)
- !The tool list is about 196 KB (roughly 49k tokens). AI apps send it with every message, so it takes that much of the AI's memory before any work starts.
- !7 tools answer with structured data but don't declare its shape (outputSchema): commercebook_network_now, network_now, commercebook_market_search, commercebook_market_intents, commercebook_market_book, commercebook_request_reach and 1 more.
- ✓ConnectsConnected in 1.0 spass
- ✓Lists its toolsFound 200 toolspass
- ✓No hidden instructionsNo hidden instructions found in tool descriptionspass
- ✓Tools work with good inputspass
All good
- ✓commercebook_network_now: Worked (198 ms)
- ✓network_now: Worked (94 ms)
- ✓instructions: Worked (550 ms)
- ✓commercebook_market_search: Worked (411 ms)
- ✓commercebook_market_lot: Answered with an error, probably because of our sample input: MCP error -32602: Input validation error: Invalid arguments for tool commercebook_market_lot: Invalid UUID at lot_id
- ✓commercebook_market_seller: Answered with an error, probably because of our sample input: {"error":"invalid_input","detail":"seller_slug: the seller_slug of a search item or a product"}
- ✓commercebook_market_intents: Worked (218 ms)
- ✓commercebook_market_book: Worked (101 ms)
- and 32 more
- ✓Bad inputs give a clean errorpass
All good
- ✓instructions: Refused wrong type for "role" with a clear error
- ✓commercebook_market_search: Refused wrong type for "q" with a clear error
- ✓commercebook_market_lot: Refused missing required input "lot_id" with a clear error
- ✓commercebook_market_lot: Refused wrong type for "lot_id" with a clear error
- ✓commercebook_market_seller: Refused wrong type for "seller_slug" with a clear error
- ✓commercebook_market_intents: Refused wrong type for "category" with a clear error
- ✓commercebook_request_reach: Refused missing required input "category" with a clear error
- ✓commercebook_request_reach: Refused wrong type for "category" with a clear error
- and 31 more
- ✓Tools work togetherpass
1 chain working
- ✓commercebook_market_search → commercebook_market_lot: commercebook_market_lot found what commercebook_market_search returned (lot_id = "168206b5-2d2f-4ec5-b7f8-19f4153556df")
- ✓Stopped looking for more chains after the limit on tool calls
- ✓Fast enoughpass
All good
- ✓Connecting took 1.0 s
- ✓Listing tools took 329 ms
- ✓Average tool answer: 166 ms
- ✓instructions: Slowest tool: instructions (550 ms)
- ✓No secrets leakedChecked 124 error messages: no secrets or internal detailspass
Test it yourself
Free and open source. Same checks, same score.
npx qamcp-cli https://commercebook.ai/mcpScore over time
- 27 Oct 202684
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use CommerceBook, signed in with GitHub, one per person. Reviews never change the score.
QAmcp Monitor (coming soon) tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. You'll also be able to claim this page and show a "Tested by QAmcp" badge. Founding price: $19/month for life for the first 50 teams.
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