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BlockMag MCP server

Which MCP servers are BlockMag's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-29

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Whose server it is
  • Addresshttps://blockmag.com/api/mcpnot in the official registry: answered when asked

No entry in the official MCP registry names this server. It answered on blockmag.com when the Atlas asked at the address servers are usually mounted on, so it is the vendor's own. Clients and catalogues that list servers from the registry do not show it.

When we asked itchecked 2026-10-29
  • Stateanswerschecked 2026-10-29
  • Tools6
  • Server calls itselfblockmag-remote-mcp
  • Server version2.0.0
  • Protocol version2024-11-05

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 689 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: scan shelf barcodes to add items to a cart; pay at the exit gate via PayPal, Stripe or cash on delivery; find nearby verified stores by GPS distance.
  • Checked on 5 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 5 of 6 tools: check arguments before calling.

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.

Measured dailydaily checks: 5, the first on 2026-10-29
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
  • What an agent can do with it0 of 3 use cases
  • Answeredmeasuring5 of the 7 daily checks it takes to print a share
  • Median first answer592 ms
  • Space in an agent's context≈ 766 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsC · 69 of 100
  • Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 5 of 6
  • Not saying whether it only reads or can destroy: 6 of 6

What an agent can do with it

  • cannot · scan shelf barcodes to add items to a cart
  • cannot · pay at the exit gate via PayPal, Stripe or cash on delivery
  • cannot · find nearby verified stores by GPS distance

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

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 →

Tools it offers6 tools · read 2026-10-29
  • search_public_stores

    Searches verified public E-Shop stores and companies on BlockMag by name, keyword, country, or city.

  • search_public_catalog

    Searches for products across verified public store catalogs on BlockMag with optional store subdomain and price filters.

  • get_public_store_details

    Retrieves public storefront details, contact information, currency, and featured catalog items for a specific BlockMag store subdomain.

  • generate_free_invoice

    Stateless public tool: generates structured invoice calculation with VAT breakdown and direct A4 printable preview URL (does not save to a tenant account).

  • calculate_timesheet

    Stateless public tool: calculates freelancer/contractor billable hours, rates, tax deductions, and A4 timesheet preview URL.

  • verify_invoice_qr

    Validates an invoice dynamic verification hash or B2B partner QR code.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "blockmag": {
      "type": "http",
      "url": "https://blockmag.com/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http blockmag https://blockmag.com/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://blockmag.com/api/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.