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Barcelona Rent MCP server

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

read 2026-10-20

← Back to Barcelona Rent

Whose server it is
  • Registry namefyi.barcelona-rent/mcpverified in the MCP registry

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

When we asked itchecked 2026-10-20
  • Stateanswerschecked 2026-10-20
  • Tools5
  • Server calls itselfbarcelona-rent
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-20 the server answered initialize and tools/list without a sign-in. First answer in 808 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "Compare your rent against your neighbourhood's official average", the likely first call is get_rent.
  • Parameters are untyped or undescribed in 2 of 5 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: 2, the first on 2026-10-20
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer2220 ms
  • Space in an agent's context≈ 848 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsB · 77 of 100
  • Typed results0 of 5 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 2 of 5
  • Not saying whether it only reads or can destroy: 5 of 5

What an agent can do with it

  • can do · Compare your rent against your neighbourhood's official average
  • not sure · Check whether your rent rose faster than the local market
  • not sure · Estimate what a flat is worth to let or sell

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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 2026-10-20
  • get_rent

    Current average rent and sale price for one Barcelona neighbourhood or district, from contracts actually registered with the Catalan government — not listing or asking prices. Accepts a neighbourhood name, a district name or a URL slug…

  • compare_areas

    Compare registered rent and sale prices across two or more Barcelona neighbourhoods or districts, cheapest first. Use when someone is choosing between places to live or asking which is more expensive. Same official source as get_rent.

  • rent_trend

    The quarterly series of registered rents for one Barcelona neighbourhood or district, and how much it has changed over the window. Use for questions about whether rents are rising or falling in a specific area. Figures run from 2014 for…

  • find_areas

    Which Barcelona neighbourhoods a monthly budget actually reaches, cheapest first, based on registered rents rather than advertised prices. Use when someone says what they can afford and wants to know where to look.

  • barri_character

    What a Barcelona neighbourhood is actually like, from the city's own published measures: how much street commerce it has, how much road traffic noise reaches residents at night, how steep its streets are, how many households have a child…

How to connect

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

{
  "mcpServers": {
    "barcelona-rent": {
      "type": "http",
      "url": "https://www.barcelona-rent.fyi/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http barcelona-rent https://www.barcelona-rent.fyi/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://www.barcelona-rent.fyi/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.