# Trefle

**Canonical:** https://apis.io/providers/trefle/  
**Website:** https://trefle.io/  
**APIs profiled:** 10

An open, freely accessible botanical data source and REST API for plant information covering over 400,000 plant species with taxonomy, morphology, growth requirements, and geographic distributions.

## Kin Score — 40.1 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 40.1).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 67.8 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

Regulatory layer — **Government & Public Sector**: 31.5 (matched via tags).

## Agent readiness — 22.9 (agent-aware)

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

## Access

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

## APIs (10)

- **Trefle Distributions API** — Access geographic distribution zones and retrieve plants native or established in specific regions.
- **Trefle Division Classes API** — Retrieve botanical division class classification data.
- **Trefle Division Orders API** — Retrieve botanical division order classification data.
- **Trefle Divisions API** — Retrieve botanical division classification data.
- **Trefle Families API** — Retrieve plant family classification and taxonomy data.
- **Trefle Genus API** — Retrieve plant genus classification data.
- **Trefle Kingdoms API** — Retrieve botanical kingdom classification data.
- **Trefle Plants API** — Search, list, and retrieve plant species by various attributes including common name, scientific name, slug, and taxonomic identifiers.
- **Trefle Species API** — Access detailed species information including taxonomy, morphology, growth characteristics, soil requirements, and geographic distributions.
- **Trefle Subkingdoms API** — Retrieve botanical subkingdom classification data.

## Agentic access (1)

- **Trefle Agentic Access** — 18 operations

## Security (2)

- **Trefle Authentication** — apiKey · 1 scheme
- **Trefle Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Trefle Plans Pricing**

## Tags

Agriculture, Botany, Open Data, Plants, Science

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