# Class Q Checker

**Canonical:** https://apis.io/providers/classqchecker-co-uk/  
**Website:** https://classqchecker.co.uk/  
**APIs profiled:** 1

Class Q Checker provides a free online tool to determine whether a barn conversion in England qualifies under Class Q permitted development. It offers detailed guidance, statutory tests, cost indexes, and links to legislation, helping users assess eligibility, required approvals, and planning considerations for converting agricultural buildings into dwellings.

## Kin Score — 16.5 / 100 (emerging)

Scored 2026-11-06 under rubric 0.27.0.

| Facet | Score |
|---|---|
| Discoverability | 65.0 |
| Contract Quality | 0.0 |
| Contract Governance | 22.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 14.3 |
| Access Clarity | 10.5 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 26.5 (matched via fallback).

## Agent readiness — 11.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | derived |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |
| MCP Tool Quality | na |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (1)

- **Class Q Checker API** — API for Class Q Checker MCP tools

## MCP servers (1)

- **Class Q Checker MCP Server** — Remote MCP server at classqchecker.co.uk requiring an API key.

## Agentic access (1)

- **Classqchecker Co Uk Agentic Access** — 1 operation · 1 acting

## Security (3)

- **Classqchecker Co Uk Authentication** — http · 1 scheme
- **Classqchecker Co Uk Domain Security** — TLSv1.3 · HSTS · DMARC
- **Classqchecker Co Uk Vulnerability Disclosure** — security.txt · contact published

## Tags

Class Q, Planning, United Kingdom, Real Estate, Permitted Development

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/classqchecker-co-uk/). Scores are computed from the provider's own public artifacts under a published rubric.