# Harvest

**Canonical:** https://apis.io/providers/harvest/  
**Website:** https://www.getharvest.com  
**APIs profiled:** 12

Harvest is a cloud-based time tracking, project management, expense tracking, and invoicing platform used by agencies, consultancies, and professional services teams to track billable hours, manage budgets, and bill clients. The platform provides reporting on team utilization, project profitability, and budget burn, and integrates with tools like Asana, Trello, Slack, and QuickBooks. Harvest's REST API v2 provides full programmatic access to clients, projects, tasks, time entries, expenses, invoices, estimates, and users using OAuth 2.0 or Personal Access Token authentication.

## Kin Score — 35.6 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 35.6).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 55.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 28.6 |
| Commercial Clarity | 31.6 |
| Access Clarity | 31.6 |

## Agent readiness — 26.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| 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

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

## APIs (12)

- **Harvest API v2** — REST API for managing clients, projects, tasks, time entries, expenses, invoices, estimates, and users in Harvest. Supports OAuth 2.0 and Personal Access Token authentication, r...
- **Harvest Clients API** — The Clients API from Harvest — 2 operation(s) for clients.
- **Harvest Company API** — The Company API from Harvest — 1 operation(s) for company.
- **Harvest Estimates API** — The Estimates API from Harvest — 2 operation(s) for estimates.
- **Harvest Expenses API** — The Expenses API from Harvest — 2 operation(s) for expenses.
- **Harvest Invoices API** — The Invoices API from Harvest — 2 operation(s) for invoices.
- **Harvest Projects API** — The Projects API from Harvest — 2 operation(s) for projects.
- **Harvest Reports API** — The Reports API from Harvest — 4 operation(s) for reports.
- **Harvest Roles API** — The Roles API from Harvest — 2 operation(s) for roles.
- **Harvest Tasks API** — The Tasks API from Harvest — 2 operation(s) for tasks.
- **Harvest TimeEntries API** — The TimeEntries API from Harvest — 5 operation(s) for timeentries.
- **Harvest Users API** — The Users API from Harvest — 3 operation(s) for users.

## Agentic access (1)

- **Harvest Agentic Access** — 55 operations · 31 acting · 2 human-in-the-loop

## Security (4)

- **Harvest Authentication** — http · 1 scheme
- **Harvest Domain Security** — TLSv1.3 · HSTS · DMARC
- **Harvest Vulnerability Disclosure** — disclosure policy published
- **Harvest Trust Center** — SOC 2, PCI DSS

## Tags

Time Tracking, Project Management, Invoicing, Expense Tracking, Timesheets, Professional Services

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