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Stay Cost Brain MCP server

Which MCP servers are Stay Cost Brain'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
  • Registry namecom.staycostbrain/stay-cost-brainverified in the MCP registry

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

When we asked itchecked 2026-10-29
  • Stateanswerschecked 2026-10-29
  • Tools5
  • Server calls itselfstay-cost-brain
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 114 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: work out the tourist tax for a hotel stay; check the tourist tax rules for a specific city.
  • Checked on 4 of the 7 days it takes to judge reliability.

Once connected

  • For "work out the tourist tax for a hotel stay", the likely first call is tourist_tax.
  • For "check the tourist tax rules for a specific city", the likely first call is place_rules.

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: 4, the first on 2026-10-30
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring4 of the 7 daily checks it takes to print a share
  • Median first answer123 ms
  • Space in an agent's context≈ 1,130 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results5 of 5 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · work out the tourist tax for a hotel stay
  • not sure · compare hotels with the tourist tax included in the total
  • can do · check the tourist tax rules for a specific city

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 offers5 tools · read 2026-10-29
  • get_capabilities

    What Stay Cost Brain covers: the researched places, how the tax figures are sourced and dated, what it does not do (no room prices, no booking), and the sister services.

  • list_places

    Every place with a researched tourist-tax table: name, country, today's headline rate, the date it was checked, the next re-check date, the towns that set their own tax, and the page with every rate and source.

  • tourist_tax

    The tourist tax for one stay, worked out night by night: each tax that applies (regional and city parts separately), the amount or the range when the star rating or type of stay is not given, how many nights are charged, how it is paid…

  • place_rules

    Every tourist-tax rule for one researched place: each tax with its authority, legal basis, rates by type of stay, season and area, night caps, exemptions, how it is paid, valid dates and status (verified, inferred, announced), with source…

  • hotels_link

    A link to live hotel and rental prices for a place or any town and the given dates and guests (Stay22, showing Booking.com, Expedia, Agoda, Vrbo and others). The person sees prices and books there; this tool returns no prices and books…

How to connect

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

{
  "mcpServers": {
    "stay-cost-brain": {
      "type": "http",
      "url": "https://staycostbrain.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http staycostbrain https://staycostbrain.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://staycostbrain.com/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.