Barcelona Rent
REMOTE · WWW.BARCELONA-RENT.FYI · SCANNED SEP 27
Official Barcelona rent and sale prices by neighbourhood, from registered contracts.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security66
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 596 tokens (~119/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management40
- Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage93
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 78% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the Barcelona Rent MCP server?
Barcelona Rent is a hosted endpoint at https://www.barcelona-rent.fyi/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · www.barcelona-rent.fyi
claude mcp add --transport http fyi-barcelona-rent-mcp 'https://www.barcelona-rent.fyi/api/mcp'
{
"mcpServers": {
"fyi-barcelona-rent-mcp": {
"url": "https://www.barcelona-rent.fyi/api/mcp"
}
}
} {
"servers": {
"fyi-barcelona-rent-mcp": {
"type": "http",
"url": "https://www.barcelona-rent.fyi/api/mcp"
}
}
} [mcp_servers.fyi-barcelona-rent-mcp] url = "https://www.barcelona-rent.fyi/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"fyi-barcelona-rent-mcp": {
"type": "remote",
"url": "https://www.barcelona-rent.fyi/api/mcp",
"enabled": true
}
}
} openclaw mcp add fyi-barcelona-rent-mcp --url 'https://www.barcelona-rent.fyi/api/mcp' --transport streamable-http
mcp_servers:
fyi-barcelona-rent-mcp:
url: "https://www.barcelona-rent.fyi/api/mcp" {
"McpServers": {
"fyi-barcelona-rent-mcp": {
"Transport": "http",
"Url": "https://www.barcelona-rent.fyi/api/mcp"
}
}
} assistant mcp add fyi-barcelona-rent-mcp -t streamable-http -u 'https://www.barcelona-rent.fyi/api/mcp'
{
"mcpServers": {
"fyi-barcelona-rent-mcp": {
"type": "http",
"url": "https://www.barcelona-rent.fyi/api/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
- Stability: unverified → 0.03 ▲ functional
- 15 Sept 26 67
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 27 Sept 2026 · Probed https://www.barcelona-rent.fyi/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.barcelona-rent.fyi | CN=YR2,O=Let's Encrypt,C=US | 31 Jul 2026 | 29 Oct 2026 | RSA 2048 | SHA256-RSA | 6bef3e424777b3f388408e9f9b80f329e53 |
| SANs: www.barcelona-rent.fyi | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of www.barcelona-rent.fyi. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| fyi. | present | 24340 | 8 | Verified |
| barcelona-rent.fyi. | present | 45633 | 13 | Verified |
| www.barcelona-rent.fyi. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.barcelona-rent.fyi/api/mcp | Verified | 200 | |
| http (plaintext) | http://www.barcelona-rent.fyi/api/mcp | HTTPS enforced | 308 | https://www.barcelona-rent.fyi/api/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
barri_character What a Barcelona neighbourhood is like ~138
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, and how many residents hold a foreign passport. Each figure comes with the city median and the barri's percentile among all 73. Use for questions about whether somewhere is quiet, lively, hilly, family-heavy or international — not for questions about price. None of these explains what a barri costs.
| Name | Type | Req | Description |
|---|---|---|---|
| area | string | yes | Neighbourhood name, e.g. "Gràcia" or "el Raval" |
No output schema declared.
No examples provided.
compare_areas Compare Barcelona areas ~73
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.
| Name | Type | Req | Description |
|---|---|---|---|
| areas | array | yes | Two to ten neighbourhood or district names |
| sqm | number | – | – |
No output schema declared.
No examples provided.
find_areas Find Barcelona areas within a budget ~71
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.
| Name | Type | Req | Description |
|---|---|---|---|
| budget | number | yes | Monthly budget in euros |
| sqm | number | – | Flat size (default 75) |
No output schema declared.
No examples provided.
get_rent Get Barcelona rent for an area ~145
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. Returns euros per m² per month, an estimated monthly rent for a reference flat, the sale price per m², gross rental yield where both figures describe the same quarter, and the quarter each figure comes from.
| Name | Type | Req | Description |
|---|---|---|---|
| area | string | yes | Neighbourhood or district, e.g. "la Vila de Gràcia", "Eixample", "pedralbes" |
| sqm | number | – | Flat size for the monthly estimate (default 75) |
No output schema declared.
No examples provided.
rent_trend Barcelona rent over time ~89
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 neighbourhoods and 2000 for districts.
| Name | Type | Req | Description |
|---|---|---|---|
| area | string | yes | – |
| since | integer | – | First year to include (default: the last 5 years) |
No output schema declared.
No examples provided.
What is the Barcelona Rent MCP server?
Barcelona Rent is an MCP server listed in the public MCP registry as fyi.barcelona-rent/mcp. Official Barcelona rent and sale prices by neighbourhood, from registered contracts. This page covers its hosted endpoint (https://www.barcelona-rent.fyi/api/mcp).
Is the Barcelona Rent MCP server safe to use?
Barcelona Rent scores 73 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Barcelona Rent MCP server expose?
Barcelona Rent exposes 5 tools: get_rent, compare_areas, rent_trend, find_areas, barri_character. Their descriptions and schemas cost roughly 516 tokens of context every time the server is loaded.
Does the Barcelona Rent MCP server require authentication?
No. We connected to Barcelona Rent without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Barcelona Rent MCP server still maintained?
Barcelona Rent is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.