Factline Netherlands
REMOTE · FACTLINE.DEV
Dutch addresses, neighbourhoods, crime, flood risk, rent and schools. 5 checks a day free, no key.
Available components
Last scanned (3 hours ago)
Scores higher than 94% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Maps and Location
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 Security83
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- 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 Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 3536 tokens (~136/item across 26 items; 16 tools + 10 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management80
- Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (19% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 16 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 18 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
- Supports UI / widget rendering.Pass
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.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 0
- Server version: 0.14.0 → 0.15.0 functional
- 2 Nov 26 +1
- Schema quality: 154 → 136 ▲ functional
- New resource “skill-bank-details-changed” functional
- New resource “skill-before-paying-a-new-payee” functional
- New resource “skill-eudr-geolocation-file” functional
- New resource “skill-is-this-supplier-real” functional
- Server version: 0.13.0 → 0.14.0 functional
- 1 Nov 26 0
- Tool “nl_home_basic” now declares an output schema ▲ functional
- Tool “nl_neighbourhood_summary” now declares an output schema ▲ functional
- Tool “nl_schools_near” now declares an output schema ▲ functional
- First check of Tool coverage: 19 functional
- 31 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Schema quality: 132 → 154 ▼ functional
- Server version: 0.11.0 → 0.13.0 functional
- “nl_address_batch” added an optional parameter “api_key” cosmetic
- “nl_address_lookup” added an optional parameter “api_key” cosmetic
- “nl_address_reverse” added an optional parameter “api_key” cosmetic
- “nl_crime” added an optional parameter “api_key” cosmetic
- “nl_energy_label” added an optional parameter “api_key” cosmetic
- “nl_flood_risk” added an optional parameter “api_key” cosmetic
- “nl_home_compare” added an optional parameter “api_key” cosmetic
- “nl_home_report” added an optional parameter “api_key” cosmetic
- “nl_house_prices” added an optional parameter “api_key” cosmetic
- “nl_neighbourhood” added an optional parameter “api_key” cosmetic
- “nl_postcode_addresses” added an optional parameter “api_key” cosmetic
- “nl_rent_check” added an optional parameter “api_key” cosmetic
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 0
- New resource “skill-check-a-chinese-supplier” functional
- 28 Oct 26 +1
- Schema quality: 162 → 136 ▲ functional
- New resource “skill-before-an-x402-payment” functional
- New resource “skill-check-a-counterparty” functional
- New resource “skill-dutch-address-and-vehicle-facts” functional
- New resource “skill-verify-before-paying” functional
- Server version: 0.10.0 → 0.11.0 functional
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 5 Nov 2026 · Probed https://factline.dev/mcp/nl
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=factline.dev | CN=WE1,O=Google Trust Services,C=US | 5 Oct 2026 | 3 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | be39c6ca6e0ad624130bd40b6f3570ef |
| SANs: factline.dev, www.factline.dev, *.www.factline.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of factline.dev. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| factline.dev. | present | 2371 | 13 | Verified |
| factline.dev. | 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=31536000; includeSubDomains |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-inline' https://static.cloudflareinsights.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https:; media-src 'self' blob:; connect-src 'self' https://cloudflareinsights.com; form-action 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=(), payment=(), usb=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://factline.dev/mcp/nl | Verified | 200 | |
| http (plaintext) | http://factline.dev/mcp/nl | HTTPS enforced | 301 | https://factline.dev/mcp/nl |
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 →
buy_full_address_report Buy the full report for a Dutch address (EUR 2.95) ~184
Returns a secure payment link (iDEAL or card, via Dodo Payments, EUR 2.95 incl. VAT) for the full English report on a Dutch address: crime vs national rate, noise and air quality, flood probability, ground height, monuments, permits, amenities, liveability breakdown and home-value trend. The report opens right after payment. Only use when the user wants the full report or asks to buy it.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
No output schema declared.
No examples provided.
nl_address_batch Enrich up to 10 Dutch addresses (paid) ~198
Use when enriching a list of Dutch addresses (up to 10 per call, 0.0015 USDC each): official BAG address and coordinates, CBS neighbourhood, liveability percentile, crime per 1,000 residents vs national, average home value and optionally the energy label. Unfound addresses are flagged, not charged extra. Costs 0.015 USDC via x402, or 8 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addresses | string | yes | 1 to 10 addresses separated by ';', e.g. '3511LX 1; 2517AS 100' |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| include | string | – | 'energy_label' to add energy labels |
No output schema declared.
No examples provided.
nl_address_lookup Validate and geocode a Dutch address (paid) ~234
Use when you need to check that a Dutch address exists or get its exact spelling and coordinates: official BAG address from postcode + house number or free text, latitude/longitude, BAG ids, municipality, province and CBS neighbourhood code. Cheap address validation for onboarding, delivery and CRM. Source: Kadaster BAG via PDOK. Costs 0.002 USDC via x402, or 1 credit of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
No output schema declared.
No examples provided.
nl_address_reverse Reverse geocode Dutch coordinates (paid) ~179
Use when you have coordinates in the Netherlands and need the address: nearest official BAG address with distance in metres, postcode, city, municipality, province, BAG ids and CBS buurt and wijk codes, plus other nearby addresses. Input: WGS84 latitude and longitude. Source: Kadaster BAG via PDOK. Costs 0.002 USDC via x402, or 1 credit of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| lat | string | yes | Latitude, e.g. 52.0836 |
| lon | string | yes | Longitude, e.g. 4.2919 |
No output schema declared.
No examples provided.
nl_crime Crime in a Dutch neighbourhood (paid) ~192
Use when the user asks whether a Dutch neighbourhood or postcode is safe: police-registered crime per 1,000 residents vs the national rate, split into burglary, bicycle theft, vehicle crime, violence and vandalism, with counts and a ratio. Input: Dutch postcode or CBS buurt code. Source: Politie open data, CBS. Costs 0.003 USDC via x402, or 2 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| code | string | – | Alternative: CBS neighbourhood code, e.g. BU05182245 |
| postcode | string | – | Any Dutch postcode in the neighbourhood, e.g. 2517AS |
No output schema declared.
No examples provided.
nl_energy_label Energy label of a Dutch home (paid) ~231
Use when the user asks for the energy label of a Dutch home: the officially registered label (A++++ to G), registration and expiry date, building type and energy index, or a clear 'none registered'. Input: postcode + house number. Source: RVO EP-Online, the Dutch national register. Costs 0.005 USDC via x402, or 3 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
No output schema declared.
No examples provided.
nl_flood_risk Flood risk for a Dutch address (paid) ~239
Use when the user asks if a Dutch address can flood: annual flood probability (any water, over 20, 50 and 200 cm) from Rijkswaterstaat LIWO, 2050 and 2100 climate scenarios, worst-case water depth and ground height vs sea level (AHN). Input: postcode + house number. Costs 0.004 USDC via x402, or 2 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
No output schema declared.
No examples provided.
nl_home_basic Dutch address facts (free) ~157
Free. Use when the user mentions a Dutch address or asks about a home in the Netherlands: year built, floor area, use, neighbourhood residents and average home value, liveability percentile, in English. Accepts postcode + house number or free text. Sources: BAG, CBS, Leefbaarometer.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
| Name | Type | Req | Description |
|---|---|---|---|
| address | – | – | The address found |
| building | – | – | Year built, floor area and use from BAG |
| liveability | – | – | Leefbaarometer score |
| neighbourhood | – | – | Residents and average home value from CBS |
| see_url | – | – | Factline page for this address |
| source | – | – | Sources to cite |
No examples provided.
nl_home_compare Compare Dutch addresses (paid) ~187
Use when the user is choosing between 2 to 5 Dutch addresses: side-by-side liveability, crime, home values, floor area, year built, noise, air quality, ground height and distances to station, supermarket, school and GP, with the best address per metric and the full report for each. Input: addresses separated by ';'. Costs 0.08 USDC via x402, or 40 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addresses | string | yes | 2 to 5 Dutch addresses separated by ';', e.g. '3511LX 1; 2517AS 100' |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
No output schema declared.
No examples provided.
nl_home_report Dutch address report (paid) ~264
Use when the user asks about a specific Dutch home or address before renting, buying or moving: full English report with year built, floor area, energy label, crime vs national rate, noise, air quality (NO2, PM2.5), ground height, monuments, permits, schools, 18 amenity distances, neighbourhood income and home values. Input: postcode + house number. Sources: Kadaster, CBS, Politie, RIVM, RVO. Costs 0.04 USDC via x402, or 20 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
No output schema declared.
No examples provided.
nl_house_prices Dutch house prices for a postcode (paid) ~194
Use when the user asks what homes cost in a Dutch area: average home value (WOZ) in the neighbourhood with its trend, plus actual average sale prices per year in the municipality vs the national average. Context for an asking price, not a valuation of one home. Input: postcode or CBS buurt code. Source: CBS, Kadaster. Costs 0.003 USDC via x402, or 2 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| code | string | – | Alternative: CBS neighbourhood code, e.g. BU05182245 |
| postcode | string | – | Any Dutch postcode in the neighbourhood, e.g. 2517AS |
No output schema declared.
No examples provided.
nl_neighbourhood Dutch neighbourhood profile (paid) ~198
Use when the user asks what a Dutch neighbourhood or postcode area is like: residents and age mix, housing and home values, household income, energy use, distances to 18 amenities, police-registered crime vs national rate and liveability score, in English. Input: any postcode or CBS buurt code. Sources: CBS, Politie, Leefbaarometer. Costs 0.01 USDC via x402, or 5 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| code | string | – | Alternative: CBS neighbourhood code, e.g. BU05182245 |
| postcode | string | – | Any Dutch postcode in the neighbourhood, e.g. 2517AS |
No output schema declared.
No examples provided.
nl_neighbourhood_summary Dutch neighbourhood summary (free) ~146
Free. Use when the user asks what a Dutch neighbourhood or postcode area is like, or whether it is safe: headline facts for a postcode: residents, average home value (WOZ) and the municipality's average sale price, share of owner-occupied homes, liveability percentile, crime per 1,000 residents vs the national rate, and distance to supermarket, GP, primary school and train station. Sources: CBS, Politie, Leefbaarometer.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | – | Alternative: CBS neighbourhood code, e.g. BU05182245 |
| postcode | string | – | Any Dutch postcode in the neighbourhood, e.g. 2517AS |
| Name | Type | Req | Description |
|---|---|---|---|
| area | – | – | Neighbourhood name and code |
| housing | – | – | Home values and ownership |
| population | – | – | Residents and households |
| source | – | – | Sources to cite |
No examples provided.
nl_postcode_addresses All addresses in a Dutch postcode (paid) ~153
Use when you need every address in a Dutch postcode: street, house number, letter and addition, BAG id and coordinates, sorted. For address pickers, delivery and canvassing routes and data cleaning. Source: Kadaster BAG via PDOK. Costs 0.005 USDC via x402, or 3 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| postcode | string | yes | 6-character postcode, e.g. 2517AS |
No output schema declared.
No examples provided.
nl_rent_check Rent points estimate for a Dutch home (paid) ~256
Use when a tenant asks if their Dutch rent is too high or what the maximum rent is: estimated rent points (WWS) from floor area, energy label and neighbourhood WOZ, the likely segment (social up to 143 points, middle 144-186, free 187+) and the approximate maximum basic rent (2026 limits). An estimate with a link to the official check. Input: postcode + house number. Costs 0.01 USDC via x402, or 5 credits of a Factline API key. The first 5 paid-tool calls a day are free, no payment or key needed.
| Name | Type | Req | Description |
|---|---|---|---|
| addition | string | – | Optional house number addition |
| api_key | string | – | Factline API key (fl_live_...) from get_trial_key: pass it here right after you get one, no reconnect needed |
| house_letter | string | – | Optional house letter, e.g. A |
| house_number | integer | – | House number, e.g. 1 |
| postcode | string | – | Dutch postcode, e.g. 3511LX |
| q | string | – | Alternative to postcode: free-text address, e.g. 'Visschersplein 1 Utrecht' |
No output schema declared.
No examples provided.
nl_schools_near Dutch schools near a postcode (free) ~140
Free. Use when the user asks about schools near a Dutch address or postcode, or is moving with children: the nearest primary and secondary schools, with distance, denomination, pupils, the share of pupils reaching the target reading and maths level on the end-of-primary test (vs national), and secondary exam pass rates per track (vmbo/havo/vwo). Also the nearest daycare (0 to 4) and after-school care (4 to 12) with registered places. Sources: DUO, Landelijk Register Kinderopvang.
| Name | Type | Req | Description |
|---|---|---|---|
| postcode | string | yes | Dutch postcode, e.g. 3511LX or 3511 |
| Name | Type | Req | Description |
|---|---|---|---|
| schools | – | – | Schools with type, distance and pupils |
| source | – | – | Sources to cite |
No examples provided.
How do I install the Factline Netherlands MCP server?
Factline Netherlands is a hosted endpoint at https://factline.dev/mcp/nl, 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 · factline.dev
claude mcp add --transport http snefhew-factline-nl 'https://factline.dev/mcp/nl'
What is the Factline Netherlands MCP server?
Factline Netherlands is an MCP server listed in the public MCP registry as io.github.snefhew/factline-nl. Dutch addresses, neighbourhoods, crime, flood risk, rent and schools. 5 checks a day free, no key. This page covers its hosted endpoint (https://factline.dev/mcp/nl).
Is the Factline Netherlands MCP server safe to use?
Factline Netherlands scores 87 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 Factline Netherlands MCP server expose?
Factline Netherlands exposes 16 tools: nl_home_basic, nl_neighbourhood_summary, nl_schools_near, buy_full_address_report, nl_home_report, and 11 more. Their descriptions and schemas cost roughly 3,152 tokens of context every time the server is loaded.
Does the Factline Netherlands MCP server require authentication?
No. We connected to Factline Netherlands without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Factline Netherlands MCP server still maintained?
Factline Netherlands is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.