# Ensembl

**Canonical:** https://apis.io/providers/ensembl/  
**Website:** https://www.ensembl.org  
**APIs profiled:** 1

Ensembl is a genome annotation database and browser maintained by the European Bioinformatics Institute (EMBL-EBI) and the Wellcome Sanger Institute. It provides comprehensive genome data for vertebrates and other eukaryotic organisms, covering gene annotation, variant data, regulatory features, comparative genomics, and evolutionary analysis across hundreds of species. The Ensembl REST API offers language-agnostic HTTP access to this genome data without requiring local database installations or Perl API dependencies.

## Kin Score — 17.4 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 17.4).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 23.7 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Health**: 10.0 (matched via tags).

## Agent readiness — 3.0 (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 | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free — onboarding: unknown, pricing: free, trial: no (confidence: medium).

## APIs (1)

- **Ensembl REST API** — The Ensembl REST API (v15.12) provides language-agnostic HTTP access to genome annotation data across hundreds of vertebrate and eukaryotic species. It exposes 19 endpoint categ...

## Security (1)

- **Ensembl Domain Security** — TLSv1.3

## Plans (1)

- **Ensembl Plans Pricing**

## Tags

Genomics, Bioinformatics, Genome Annotation, Variant Annotation, Comparative Genomics, Life Sciences, REST API

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