GROO reality

GROO reality is a Czech real estate brokerage founded in 2000, operating in Prague and surrounding areas. The company offers personal broker services, focusing on client care and market expertise. The website provides property listings, company information, contact details, and access to a public API for property data. It includes an llms.txt overview for AI agents and an OpenAPI description at /openapi.json.

GROO reality publishes 7 API contracts indexed on the APIs.io network, including Aktuality API, Ciselniky API, Kontakt API, and 4 more. Tagged areas include Real Estate, Brokerage, Prague, and Property Listings.

The GROO reality catalog on APIs.io includes 1 Spectral governance ruleset.

GROO reality’s developer surface includes API reference and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

17.3/100 emerging Agent 23/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 MCP Servers

Real Estate Brokerage Prague Property Listings

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 17.3/100 · emerging

Contract Quality 9.5 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.1 / 9

Regulatory Posture 0.7 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime (on an ambiguous tag, where no other regime matched), so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 0.0 — up to +20.0 composite points Ask about this →
Developer Ergonomics scores 7.1 — up to +18.6 composite points Ask about this →
Contract Quality scores 44.9 — up to +13.8 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/groo-cz/apis.yml: open an issue on github.com/api-evangelist/groo-cz to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

GROO reality Aktuality API

The Aktuality API from GROO reality — 1 operation(s) for aktuality.

GROO reality Ciselniky API

The Ciselniky API from GROO reality — 1 operation(s) for ciselniky.

GROO reality Kontakt API

The Kontakt API from GROO reality — 1 operation(s) for kontakt.

GROO reality Nabidky API

The Nabidky API from GROO reality — 2 operation(s) for nabidky.

GROO reality Poptavky API

The Poptavky API from GROO reality — 1 operation(s) for poptavky.

GROO reality Projekty API

The Projekty API from GROO reality — 1 operation(s) for projekty.

GROO reality Reference API

The Reference API from GROO reality — 1 operation(s) for reference.

Scroll for all 7

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

GROO reality MCP Server

Remote MCP server at www.groo.cz.

MCP SERVER

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

GROO reality API Rules

45 rules · 43 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

GROO reality Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

GROO reality Agentic Access

8 operations

8 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

ErrorCatalog

ErrorCatalog

Conformance

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: groo-cz
name: GROO reality
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
image: https://www.groo.cz/photos/2026-07-04/8661030fa2ace68dbaa6b102a77a3fff.hero.jpg
description: GROO reality is a Czech real estate brokerage founded in 2000, operating in Prague and surrounding areas. The
  company offers personal broker services, focusing on client care and market expertise. The website provides property listings,
  company information, contact details, and access to a public API for property data. It includes an llms.txt overview for
  AI agents and an OpenAPI description at /openapi.json.
url: https://artifacts.apis.io/groo-cz/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-11 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-10'
modified: '2026-11-10'
tags:
- Real Estate
- Brokerage
- Prague
- Property Listings
tags_raw:
- Real Estate
- Brokerage
- Prague
- Property Listings
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/groo-cz-agentic-access.yml
- type: Spectral
  url: rules/groo-cz-rules.yml
- type: ErrorCatalog
  url: errors/groo-cz-problem-types.yml
- type: Conformance
  url: conformance/groo-cz-conformance.yml
- type: LLMsTxt
  url: llms/groo-cz-llms.txt
- type: MCPServer
  url: mcp/groo-cz-mcp.yml
- type: Hosts
  url: hosts/groo-cz-hosts.yml
- type: APIReference
  url: https://www.groo.cz/reference
- type: DomainSecurity
  url: security/groo-cz-domain-security.yml
- type: Website
  url: https://www.groo.cz/
apis:
- aid: groo-cz:groo-cz-aktuality-api
  name: GROO reality Aktuality API
  description: The Aktuality API from GROO reality — 1 operation(s) for aktuality.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Aktuality
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-aktuality-api-openapi.yml
- aid: groo-cz:groo-cz-ciselniky-api
  name: GROO reality Ciselniky API
  description: The Ciselniky API from GROO reality — 1 operation(s) for ciselniky.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Ciselniky
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-ciselniky-api-openapi.yml
- aid: groo-cz:groo-cz-kontakt-api
  name: GROO reality Kontakt API
  description: The Kontakt API from GROO reality — 1 operation(s) for kontakt.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Kontakt
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-kontakt-api-openapi.yml
- aid: groo-cz:groo-cz-nabidky-api
  name: GROO reality Nabidky API
  description: The Nabidky API from GROO reality — 2 operation(s) for nabidky.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Nabidky
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-nabidky-api-openapi.yml
- aid: groo-cz:groo-cz-poptavky-api
  name: GROO reality Poptavky API
  description: The Poptavky API from GROO reality — 1 operation(s) for poptavky.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Poptavky
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-poptavky-api-openapi.yml
- aid: groo-cz:groo-cz-projekty-api
  name: GROO reality Projekty API
  description: The Projekty API from GROO reality — 1 operation(s) for projekty.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Projekty
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-projekty-api-openapi.yml
- aid: groo-cz:groo-cz-reference-api
  name: GROO reality Reference API
  description: The Reference API from GROO reality — 1 operation(s) for reference.
  baseURL: https://www.groo.cz/api/v1
  tags:
  - Reference
  properties:
  - type: OpenAPI
    url: openapi/groo-cz-reference-api-openapi.yml
x-enrichment:
  date: '2026-11-11'
  status: nochange
  artifacts_added: 0
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

GROO reality API — frequently asked questions

Does GROO reality have an API?

Yes. APIs.io lists 7 APIs from GROO reality, including GROO reality Aktuality API, GROO reality Ciselniky API and GROO reality Kontakt API, and 4 more.

Is there an OpenAPI specification for the GROO reality API?

Yes. APIs.io indexes 7 OpenAPI specifications for GROO reality, each linked for download from this page.

Does GROO reality have an MCP server?

Yes. APIs.io lists 1 MCP server for GROO reality: Remote MCP server at www.groo.cz.

Is the GROO reality API ready for AI agents?

GROO reality has a Kin Score of 17.3 out of 100 (emerging) and an Agent Readiness score of 23.1 (agent-aware), scored by API Evangelist on 2026-11-13.

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