# CheckBiz Merchant Check Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## CheckBiz Merchant Check

Verify a shop is a real, registered EU company before you pay

- Record: https://musedirectory.ai/connector/checkbiz-merchant-check
- Category: Shopping & Commerce
- Developer: CheckBiz (https://checkbiz.eu/merchant-check/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 1346ms, checked 2026-10-29T10:31:13Z
- Endpoint: https://api.checkbiz.eu/mcp
- Auth: Needs an access key; Pricing: unknown
- Screening: Screened, no issues found (2026-10-28T13:06:15Z)
- Source: Found in the official MCP Registry (eu.checkbiz/merchant-check) https://registry.modelcontextprotocol.io/v0/servers?search=eu.checkbiz%2Fmerchant-check

Checks if an online shop's domain belongs to an active, registered company in European business registers. Validates VAT numbers, screens against sanctions lists, and checks domain age and TLS certificates to help you avoid fraud.

Example request: "Before I buy from this Danish shop, can you verify it's a real registered company?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use CheckBiz Merchant Check to help me. It is a free service with an MCP server at https://api.checkbiz.eu/mcp. It needs an API key from CheckBiz; ask me to enter it through your secure credential prompt. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- check_merchant: Check a web shop BEFORE paying it: is the shop on this domain a real, active, registered company in a European business register, and does the domain belong to that company? Reads the registration / VAT number the shop states on its own imprint, terms or footer, looks it up in th

Screening checks:
- MCP handshake: pass (Answered in 161ms)
- Domain against threat feeds (Cloudflare security DNS): pass (api.checkbiz.eu, checkbiz.eu not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (1 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)