# Handoff

**Canonical:** https://apis.io/providers/handoff/  
**Website:** https://handoff.ai/  
**APIs profiled:** 0

Handoff is an AI-native construction management and estimating platform built for residential contractors — remodelers, home builders, handymen, and trade contractors. It handles estimating, AI takeoffs, proposals, project management, scheduling, CRM, change orders, invoicing, and financial management end-to-end, generating detailed, localized estimates in seconds from descriptions, photos, drawings, or voice. Built by 1build and backed by Initialized Capital, Greycroft, Y Combinator, and Masco Ventures, Handoff serves 10,000+ monthly active users managing billions in annualized residential construction projects. Handoff does not currently expose a public developer API; it offers a Zapier integration for connected workflows, with an API on its public roadmap.

## Kin Score — 15.5 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 15.5).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 38.2 |
| Access Clarity | 38.2 |

## 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)

- **Handoff Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Construction, Construction Management, Estimating, Takeoffs, Contractors, Artificial Intelligence, Project Management, CRM, Field Service

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