# 42Floors

**Canonical:** https://apis.io/providers/42floors/  
**APIs profiled:** 0

42Floors was a commercial real estate (CRE) search engine that made it easy to search for office space, coworking, and commercial listings across major U.S. markets. Founded in 2011 and part of Y Combinator's Winter 2012 batch, it was backed by Andreessen Horowitz (a16z) and other investors and grew a nationwide catalog of hundreds of thousands of listings. The company was acquired by flexible-office provider Knotel in July 2018, and later by real estate software company Yardi in 2021, which folded the 42Floors listing service into its CommercialEdge network of marketplaces (CommercialCafe, CommercialSearch, Point2, PropertyShark). 42Floors no longer operates as an independent brand: its 42floors.com domain now redirects to commercialcafe.com, and it exposes no public developer program, API, or documentation. This profile is retained in the API Evangelist network as an a16z portfolio-company lead with no active API surface to enrich.

## Kin Score — 5.0 / 100 (minimal)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 5.0).

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

## 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).

## Tags

Company, Commercial Real Estate, Real-Estate, PropTech, Marketplace, Search, Office Space, Y Combinator, Acquired

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/42floors/). Scores are computed from the provider's own public artifacts under a published rubric.