BuyWise MCP server

• Registry namefyi.buywise/buywiseverified in the MCP registry

The registry name sits under buywise.fyi. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools3
• Server calls itselfbuywise
• Server version1.1.2
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 116 ms.

• Its tools do every use case we checked: spot fake discounts on product pages; judge whether a seller or brand looks questionable; read confidence scores while browsing product pages.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• What an agent can do with it3 of 3 use cases
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer147 ms
• Space in an agent's context≈ 1,524 tokensthe definitions of all its tools (3), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results3 of 3 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• check_brands

  Use this when the user asks whether a brand is reputable or what kind of brand it is (an established name, a store's own label, an independent maker, or a generic white-label name), or wants brands compared while shopping. Returns…

• check_product

  Use this when the user is looking at a specific product listing on an online store and wants to know whether it looks trustworthy or like a good buy. Pass what you already read from the listing as arguments: title (required) and, when…

• check_products

  Use this when the user is comparing several product listings, such as search results or the same item at different stores, and wants trust signals on each. Pass up to 20 products, each with what you already read from its listing: title…