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The Cracks Index

by io.github.johanvd75-byte
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Read-only MCP server for The Cracks Index: ranks countries and regions on social-safety strength

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Status
Healthy
Uptime
100.0% over the last 24 hours
Last Tested
Transport
Streamable HTTP · MCP 2025-11-25
URL
ChatGPT
–
Claude
–

TDQS

A4.2/5.0

Scored across 15 tools

Disambiguation5/5

Each tool targets a distinct entity type and operation: country detail vs. region detail vs. municipality profile, comparisons for countries vs. municipalities, and separate tools for rankings, trends, correlations, and improvement guidance. Descriptions are detailed enough that an agent can reliably select the correct tool.

Naming Consistency3/5

Naming is a mix of verb-first (compare_countries, get_regions) and noun-first (country_detail, indicator_ranking, score_trends) patterns. While most names are readable and domain-related, the lack of a uniform verb_noun or noun_verb convention creates minor inconsistency.

Tool Count5/5

15 tools is well within the ideal 3-15 range. Each tool serves a clear analytical purpose (ranking, detail, comparison, trends, movers, correlations, methodology) without redundancy or bloat, matching the read-only data API scope.

Completeness5/5

The tool surface covers the full range of operations expected for this domain: full rankings, sub-national listings, entity details, comparisons, indicator-specific rankings, correlations, time trends, top movers, improvement guidance, and methodology. No obvious gaps—the API is read-only, so CRUD is not needed.

Available Tools

15 tools
area_statisticsWhere an area sits statisticallyA
Read-onlyIdempotent
Inspect

Return where one area sits statistically within its own level.

Places an area against its peer group (all areas at the same level in
the latest snapshot): its percentile, the distance from its composite
score to the level median, best and worst, and the handful of areas
nearest to it by score. Useful for answering "is this area typical, or
an outlier?".

Read-only, area-level aggregates only, no personal data.
NameRequiredDescriptionDefault
areaYesAn ISO-3166 alpha-3 country code (e.g. 'NLD') or an area code of an EU NUTS-2 region or Dutch municipality (e.g. 'NL32', 'GM0363'). Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

compare_countriesCompare countriesA
Read-onlyIdempotent
Inspect

Compare the composite score and rank of several countries.

``iso3_list`` is a list of ISO-3166 alpha-3 country codes.
NameRequiredDescriptionDefault
iso3_listYesList of ISO-3166 alpha-3 country codes to compare side by side, e.g. ['NLD', 'DEU', 'FRA']. Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

compare_gemeentenCompare Dutch municipalities on the social domainA
Read-onlyIdempotent
Inspect

Compare the social-domain profile of several Dutch municipalities.

Given two to six CBS GM-codes, returns a side-by-side comparison of their
four v1 social-domain indicators plus composite score and rank. Useful
for an agent answering "how does municipality A compare to B on the
social domain".

Read-only, no personal data. wmo_pressure and youth_care_load are context
only — shown but never scored. CBS aggregates describe an area, not its
quality. Netherlands-only.
NameRequiredDescriptionDefault
region_codesYesTwo to six CBS GM-codes of Dutch municipalities, comma-separated, e.g. 'GM0363,GM0599,GM0518'. Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

country_detailCountry detailA
Read-onlyIdempotent
Inspect

Return one country's score, rank and per-indicator breakdown.

NameRequiredDescriptionDefault
iso3YesISO-3166 alpha-3 country code, e.g. 'NLD' for the Netherlands. Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

country_fixCountry: highest-impact fixA
Read-onlyIdempotent
Inspect

Return the single highest-impact improvement for one country.

The Cracks Index names, alongside each country's score, the one change most associated with the fastest improvement, turning a ranking into a constructive, actionable signal. Read-only, no personal data.

NameRequiredDescriptionDefault
iso3YesISO-3166 alpha-3 country code, e.g. 'NLD' for the Netherlands. Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

gemeente_social_profileDutch municipality: social-domain profileA
Read-onlyIdempotent
Inspect

Return the Dutch social-domain profile for one municipality.

Given a CBS GM-code, returns that municipality's four v1 social-domain
indicators — social-assistance receipt, modelled homelessness, Wmo use
and youth-care use — each with its raw value, source and whether it was
measured or modelled. The composite score and rank are included for
context, alongside the v0-equivalent score.

Read-only, no personal data. wmo_pressure and youth_care_load are context
only — never folded into the score. CBS aggregates describe an area, not
its quality. Netherlands-only: the deeper municipal layer exists for
Dutch municipalities.
NameRequiredDescriptionDefault
region_codeYesCBS GM-code of a Dutch municipality, e.g. 'GM0363' (Amsterdam) or 'GM0599' (Rotterdam). Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

get_cracks_indexCountry rankingA
Read-onlyIdempotent
Inspect

Return the full country ranking for the latest published snapshot.

NameRequiredDescriptionDefault

No parameters

Output Schema

NameRequiredDescription

No output parameters

get_regionsList regions and municipalitiesA
Read-onlyIdempotent
Inspect

List sub-national areas in the Cracks Index, ranked within their level.

The index covers sub-national areas as well as countries: EU regions
(NUTS-2) and Dutch municipalities. This tool returns those areas with
their composite score and rank.

Parameters
----------
level : optional
    Filter by area level: ``nuts2`` (EU regions) or ``gemeente`` (Dutch
    municipalities). Omit to return all sub-national areas.
country_iso3 : optional
    ISO-3166 alpha-3 country code to restrict the list to one country's
    areas (e.g. ``NLD``).
limit : optional
    Maximum number of areas to return (1-1000, default 200).

Read-only, no personal data. Ranks are within the area's own level.
NameRequiredDescriptionDefault
levelNoFilter by area level: 'nuts2' for EU NUTS-2 regions or 'municipality' for Dutch municipalities. Omit to include all levels.
limitNoMaximum number of areas to return (default 200).
country_iso3NoOptional ISO-3166 alpha-3 country code to restrict the result to one country's areas, e.g. 'NLD'.

Output Schema

NameRequiredDescription

No output parameters

improvement_guidanceImprovement guidanceA
Read-onlyIdempotent
Inspect

Return constructive improvement guidance for one area.

Given an area identifier — an ISO-3166 alpha-3 country code, an EU NUTS-2 region code or a Dutch municipality CBS GM-code — returns that area's highest-impact improvement lever from the Cracks Index, together with Fynqo's approach to earlier, joined-up coordination and a link to the public "claim your score" page where an organisation can request a deeper local report.

Read-only, no personal data. The lever is framed as "the change most associated with improvement". It is general, aggregated guidance, not policy, medical, legal or financial advice, and carries no promise of a guaranteed score gain (sales-engine §3.4, §5).

NameRequiredDescriptionDefault
areaYesAn ISO-3166 alpha-3 country code (e.g. 'NLD') or an area code of an EU NUTS-2 region or Dutch municipality (e.g. 'NL32', 'GM0363'). Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

indicator_correlationsIndicator correlationsA
Read-onlyIdempotent
Inspect

Return pairwise correlations between the six indicators across areas.

Computes the Pearson correlation coefficient between every pair of the six Cracks Index indicators, using each area's direction-corrected normalised score. Adds a short plain-language note naming the strongest relationship. A coefficient near +1 means areas that do well on one indicator tend to do well on the other; near -1 means the opposite.

Read-only, area-level aggregates only, no personal data.

NameRequiredDescriptionDefault
levelNoArea level to correlate over: 'country', 'nuts2' (EU regions) or 'gemeente' (Dutch municipalities). Defaults to 'country'.country

Output Schema

NameRequiredDescription

No output parameters

indicator_rankingRank areas by one indicatorA
Read-onlyIdempotent
Inspect

Rank all areas by a single chosen indicator.

Returns every area's value for one indicator, ordered best-first by the
direction-corrected ``normalized_score`` (a higher normalised score
always means fewer cracks on that indicator). The raw value and unit are
included so the figure can be quoted directly.

Read-only, area-level aggregates only, no personal data.
NameRequiredDescriptionDefault
levelNoArea level to rank: 'country', 'nuts2' (EU regions) or 'gemeente' (Dutch municipalities). Defaults to 'country'.country
limitNoMaximum number of areas to return (1-500, default 200).
indicator_keyYesOne of the six Cracks Index indicators: 'problem_debt', 'eviction_rate', 'mh_treatment_gap', 'youth_care_unmet', 'food_insecurity' or 'material_deprivation'. See the 'methodology' tool for definitions.

Output Schema

NameRequiredDescription

No output parameters

methodologyMethodology and sourcesA
Read-onlyIdempotent
Inspect

Return the index methodology: indicators, weights, direction, sources.

NameRequiredDescriptionDefault

No parameters

Output Schema

NameRequiredDescription

No output parameters

region_detailRegion detailA
Read-onlyIdempotent
Inspect

Return one sub-national area: score, rank, indicator breakdown and fix.

Given a region code (an EU NUTS-2 code or a Dutch municipality CBS
GM-code), returns that area's composite score, its rank within its own
level (regions rank against regions, municipalities against
municipalities), the per-indicator breakdown and the single highest-impact
improvement for the area.

Read-only, no personal data.
NameRequiredDescriptionDefault
region_codeYesArea code of an EU NUTS-2 region or Dutch municipality, e.g. 'NL32' (Noord-Holland) or 'GM0363' (Amsterdam). Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

score_trendsScore history over timeA
Read-onlyIdempotent
Inspect

Return one area's composite-score history across every snapshot.

Given an area identifier — an ISO-3166 alpha-3 country code, an EU NUTS-2 region code or a Dutch municipality CBS GM-code — walks every published Cracks Index snapshot and returns that area's composite score and rank at each point in time, plus the net change from the first to the most recent snapshot.

Read-only, area-level aggregates only, no personal data.

NameRequiredDescriptionDefault
areaYesAn ISO-3166 alpha-3 country code (e.g. 'NLD') or an area code of an EU NUTS-2 region or Dutch municipality (e.g. 'NL32', 'GM0363'). Case-insensitive.

Output Schema

NameRequiredDescription

No output parameters

top_moversBiggest risers and fallersA
Read-onlyIdempotent
Inspect

Return the biggest risers and fallers between the two latest snapshots.

Compares every area's composite score in the most recent snapshot
against the snapshot before it and returns the areas that improved most
(``improvers`` — score fell) and worsened most (``decliners`` — score
rose). Needs at least two snapshots; returns an explanatory empty
payload otherwise.

Read-only, area-level aggregates only, no personal data.
NameRequiredDescriptionDefault
levelNoArea level to rank movers within: 'country', 'nuts2' (EU regions) or 'gemeente' (Dutch municipalities). Defaults to 'country'.country
limitNoHow many risers and how many fallers to return each (1-50, default 5).

Output Schema

NameRequiredDescription

No output parameters

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 2 tool updates
    • Addedcompare_gemeenten
    • Addedgemeente_social_profile
  2. 13 tool updates
    • First observedarea_statistics
    • First observedcompare_countries
    • First observedcountry_detail
    • First observedcountry_fix
    • First observedget_cracks_index
    • First observedget_regions
    • First observedimprovement_guidance
    • First observedindicator_correlations
    • First observedindicator_ranking
    • First observedmethodology
    • First observedregion_detail
    • First observedscore_trends
    • First observedtop_movers

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