# flatfair

**Canonical:** https://apis.io/providers/flatfair/  
**Website:** https://flatfair.co.uk  
**APIs profiled:** 0

flatfair is a UK-based tenancy deposit platform for letting agents, landlords, and Build-to-Rent operators, offering deposit alternatives and deposit administration products. Its products include No Deposit (tenants pay 28% of one month's rent plus VAT instead of a five-week cash deposit), Deposits, Unlock Deposits, Deposit Boost, tenant Referencing, and Tenant Guarantor. flatfair is used by more than 850 agents and Build-to-Rent operators to reduce move-in friction and cut deposit administration time by around 60 minutes per tenancy. The company operates a web application for agents and tenants but does not publish a public developer API, SDK, or developer portal.

## Kin Score — 11.9 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 11.9).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 27.6 |
| Access Clarity | 27.6 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

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

## Security (1)

- **Flatfair Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Fintech, PropTech, Rentals, Deposits, Tenancy, Real-Estate, United Kingdom

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