# Allen Brain Atlas API **URL:** https://community.brain-map.org/c/how-to/brain-atlas-api/35.md [Latest](https://community.brain-map.org/latest.md) · [Categories](https://community.brain-map.org/categories.md) · [Tags](https://community.brain-map.org/tags.md) --- ## [RMA Path Syntax](https://community.brain-map.org/t/rma-path-syntax/2885)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:45am UTC](https://community.brain-map.org/t/rma-path-syntax/2885 "2024-01-09T04:45:50Z")
Comma-Separated Lists for Multiple Associations Nested Parentheses for Association Paths Square Brackets for Filters Double Colon for Axis Use the RMA path syntax to describe a path connecting associated models in the … --- ## [Connected Services and Pipes - Part II](https://community.brain-map.org/t/connected-services-and-pipes-part-ii/2862)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 0\ **Last updated:** [January 8, 2024, 3:59pm UTC](https://community.brain-map.org/t/connected-services-and-pipes-part-ii/2862 "2024-01-08T15:59:55Z")
service::tbi\_correlation service::tbi\_differential service::tbi\_expression service::text\_search pipe::list pipe::replace pipe::split service::tbi\_correlation Parameters donors Array (optional) Comma delimited list … --- ## [Service Pipelines](https://community.brain-map.org/t/service-pipelines/2886)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:49am UTC](https://community.brain-map.org/t/service-pipelines/2886 "2024-01-09T04:49:06Z")
Some data that is not stored in the models is available from services. The services use some of the same resource ids as the models. This allows them to be connected to model queries and other services connected to the A… --- ## [Allen Brain Atlas API: RMA Grammar](https://community.brain-map.org/t/allen-brain-atlas-api-rma-grammar/2884)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:42am UTC](https://community.brain-map.org/t/allen-brain-atlas-api-rma-grammar/2884 "2024-01-09T04:42:51Z")
\# The Pipeline expr : stage\* stage : model\_stage | service\_stage | pipe\_stage # Pipeline Stages model\_stage : model\_step (rma\_option\_step | filters | includes)\* service\_stage : service\_step filters pipe\_stage : pipe\_ste… --- ## [Image-to-image synchronization](https://community.brain-map.org/t/image-to-image-synchronization/2863)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 0\ **Last updated:** [January 8, 2024, 4:49pm UTC](https://community.brain-map.org/t/image-to-image-synchronization/2863 "2024-01-08T16:49:37Z")
Image-to\_Atlas Image-to\_Image Image-to-Image 2-D Reference-To-Image Image-To-Reference Structure-To-Image The following set of image synchronization services uses the image alignment results from the Informatics Data … --- ## [RESTful Model Access (RMA)](https://community.brain-map.org/t/restful-model-access-rma/2866)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 0\ **Last updated:** [January 8, 2024, 5:40pm UTC](https://community.brain-map.org/t/restful-model-access-rma/2866 "2024-01-08T17:40:24Z")
RESTful Resources Include Criteria Only, Except And Tabular Sorting And Paging ActiveRecord Query and Serialization RESTful Model Access (RMA) is an HTTP service designed along RESTful principles to allow access to da… --- ## [Atlas Drawing and Ontologies](https://community.brain-map.org/t/atlas-drawing-and-ontologies/2864)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 0\ **Last updated:** [January 8, 2024, 5:13pm UTC](https://community.brain-map.org/t/atlas-drawing-and-ontologies/2864 "2024-01-08T17:13:56Z")
Downloading Atlas Images And Graphics Structures And Ontologies A set of high resolution digital reference atlases have been created to provide neuroanatomical context to in situ hybridization, microarray, RNA-sequenc… --- ## [Quantified Data by Structures](https://community.brain-map.org/t/quantified-data-by-structures/2882)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:38am UTC](https://community.brain-map.org/t/quantified-data-by-structures/2882 "2024-01-09T04:38:23Z")
Data from our large scale gene expression and connectivity products is processed through an informatics data analysis pipeline to obtain spatially mapped quantified expression/projection information. Quantified data i… --- ## [Connected Services and Pipes - Part I](https://community.brain-map.org/t/connected-services-and-pipes-part-i/2861)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 0\ **Last updated:** [January 8, 2024, 3:59pm UTC](https://community.brain-map.org/t/connected-services-and-pipes-part-i/2861 "2024-01-08T15:59:03Z")
service::dev\_human\_correlation service::dev\_human\_differential service::dev\_human\_expression service::dev\_human\_microarray\_correlation service::dev\_human\_microarray\_differential service::dev\_human\_microarray\_expression s… --- ## [Downloading an Ontology's Structure Graph](https://community.brain-map.org/t/downloading-an-ontologys-structure-graph/2880)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:29am UTC](https://community.brain-map.org/t/downloading-an-ontologys-structure-graph/2880 "2024-01-09T04:29:39Z")
Prototype Examples Parameters Returns Allows downloading of an Ontology’s StructureGraph as a JSON or XML document. Review the list of Atlas Drawings and Ontologies to determine the relevant StructureGraph’s ID. Proto… --- ## [API Response Formats](https://community.brain-map.org/t/api-response-formats/2883)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:40am UTC](https://community.brain-map.org/t/api-response-formats/2883 "2024-01-09T04:40:47Z")
The API provides resource data in JSON (.json), XML (.xml) or CSV (.csv) data formats. The API sets the HTTP response code and content type according to the requested format and the success or failure of the query. The d… --- ## [Downloading a WellKnownFile](https://community.brain-map.org/t/downloading-a-wellknownfile/2881)
**Author:** [@ray.sanchez](https://community.brain-map.org/u/ray.sanchez)\ **Replies:** 0\ **Last updated:** [January 9, 2024, 4:34am UTC](https://community.brain-map.org/t/downloading-a-wellknownfile/2881 "2024-01-09T04:34:19Z")
Prototype Example Parameters Returns The WellKnownFile Download Service returns files. Examples include Agilent output files from the Human Brain Microarray product and RNA Sequencing output files from the Developing H… --- ## [Downloading 3-D Expression Grid Data](https://community.brain-map.org/t/downloading-3-d-expression-grid-data/2859)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 1\ **Last updated:** [January 12, 2026, 1:52am UTC](https://community.brain-map.org/t/downloading-3-d-expression-grid-data/2859 "2026-01-12T01:52:06Z")
Download 3-D expression grid data packaged into a compressed archive file (.zip). Prototype http://api.brain-map.org/grid\_data/download/\[SectionDataSet.id\]&include=\[images\] Examples Download the 200um density volume f… --- ## [Allen Brain Atlas API: Data Model](https://community.brain-map.org/t/allen-brain-atlas-api-data-model/2867)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 1\ **Last updated:** [October 18, 2024, 4:19pm UTC](https://community.brain-map.org/t/allen-brain-atlas-api-data-model/2867 "2024-10-18T16:19:44Z")
Key Models Images The data model includes entities from molecular biology, anatomic atlases, laboratory artifacts, experiments, and annotations. Refer to the Class Hierarchy and Class List for the models’ details, inc… --- ## [Downloading and Displaying SVG](https://community.brain-map.org/t/downloading-and-displaying-svg/2868)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 1\ **Last updated:** [October 1, 2025, 6:07pm UTC](https://community.brain-map.org/t/downloading-and-displaying-svg/2868 "2025-10-01T18:07:36Z")
Prototype Examples Parameters Returns The SVG download service returns annotations associated with the specified SectionImage as scalable vector graphics (SVG). Examples of annotations that can be retrieved include hot… --- ## [Downloading an Image](https://community.brain-map.org/t/downloading-an-image/2865)
**Author:** [@SvenOtto](https://community.brain-map.org/u/SvenOtto)\ **Replies:** 3\ **Last updated:** [July 28, 2025, 10:36pm UTC](https://community.brain-map.org/t/downloading-an-image/2865 "2025-07-28T22:36:20Z")
Image Download Service AtlasImage Download Service Download whole or partial two-dimensional images from the Allen Institute with the Image and AtlasImage Download Services. Image Download Service The Image download …