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Ensembl REST APIs

Ensembl REST API provides language agnostic bindings to Ensembl data.

• Access it from http://rest.ensembl.org
• Access our GRCh37 site from http://grch37.rest.ensembl.org (click here for more info)

Ensembl REST 4.1 User Guide

The following guide refers to the 4.1 release of the Ensembl REST API. For support please contact helpdesk or our dev mailing list.

Contents

1. Writing Your First Client
2. Example Clients (all query for a Gene and look for overlapping variation)

• Example Java Client
• Example Perl Client
• Example Python Client
• Example Ruby Client

2. URL Structure
3. Parameters
4. API Versioning
5. Output formats
6. HTTP Response Codes
7. HTTP Headers
8. Rate Limits
9. Cross Origin Resource Sharing and JSON-P
10. POST Requests (VEP & Archive)
11. Version Migration

• 1.0 to 2.0
• 1.0 to 3.0 (Beta to Gamma)

12. REST Installation and Development

Licensing

The Ensembl REST API & associated Ensembl Perl APIs are available under an Apache 2 license. Please consult the LICENSE file for more information. Your usage of the data returned by the service is subject to same conditions as laid out on the Ensembl website.

Citing

To cite your usage of the Ensembl REST API please use our most recent Nucleic Acids Review paper. Details of which can be found on Ensembl's publication page.

Example Clients

All example clients attempt to find variants overlapping the human Gene BRAF. They also attempt to rate limit themselves to 15 requests per second but also look for the Retry-After header to ensure they are not rate limited due to shared IP addresses.

• Perl
• Python
• Java
• Ruby