# Ask Marcel

**Canonical:** https://apis.io/providers/askmarcel-app/  
**Website:** https://askmarcel.app/  
**APIs profiled:** 1

Ask Marcel provides the largest HVAC troubleshooting database for UK engineers, offering over 400,000 error codes across 126 brands and 905 models. The platform includes a web and mobile app, API/MCP for developers, and detailed documentation to integrate fault code lookup into tools and services. It aims to simplify HVAC maintenance, reduce downtime, and support both technicians and integrators with comprehensive manufacturer-sourced information.

## Kin Score — 51.7 / 100 (developing)

Scored 2026-11-02 under rubric 0.26.0.

| Facet | Score |
|---|---|
| Discoverability | 57.1 |
| Contract Quality | 53.2 |
| Contract Governance | 35.6 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 63.6 |
| Access Clarity | 65.8 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 20.6 (matched via fallback).

## Agent readiness — 40.7 (agent-ready)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **AskMarcel API** — API REST for accessing technical knowledge from AskMarcel.

## Security (2)

- **Askmarcel App Authentication** — 2 schemes
- **Askmarcel App Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Askmarcel App Plans Pricing**

## Tags

HVAC, Engineering, Troubleshooting, Database

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