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This is the development version of hca; for the stable release version, see hca.

Exploring the Human Cell Atlas Data Coordinating Platform

Bioconductor version: Development (3.20)

This package provides users with the ability to query the Human Cell Atlas data repository for single-cell experiment data. The `projects()`, `files()`, `samples()` and `bundles()` functions retrieve summary information on each of these indexes; corresponding `*_details()` are available for individual entries of each index. File-based resources can be downloaded using `files_download()`. Advanced use of the package allows the user to page through large result sets, and to flexibly query the 'list-of-lists' structure representing query responses.

Author: Maya McDaniel [aut], Martin Morgan [aut, cre] , Kayla Interdonato [ctb]

Maintainer: Martin Morgan <martin.morgan at>

Citation (from within R, enter citation("hca")):


To install this package, start R (version "4.4") and enter:

if (!require("BiocManager", quietly = TRUE))

# The following initializes usage of Bioc devel


For older versions of R, please refer to the appropriate Bioconductor release.


To view documentation for the version of this package installed in your system, start R and enter:

Accessing Human Cell Atlas Data HTML R Script
Working With Human Cell Atlas Manifests HTML R Script
Reference Manual PDF


biocViews SingleCell, Software
Version 1.13.0
In Bioconductor since BioC 3.13 (R-4.1) (3 years)
License MIT + file LICENSE
Depends R (>= 4.1)
Imports httr, jsonlite, dplyr, tibble, tidyr, readr, BiocFileCache, tools, utils, digest, shiny, miniUI, DT
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Suggests LoomExperiment, SummarizedExperiment, SingleCellExperiment, S4Vectors, methods, testthat (>= 3.0.0), knitr, rmarkdown, BiocStyle
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Source Package hca_1.13.0.tar.gz
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macOS Binary (x86_64) hca_1.13.0.tgz
macOS Binary (arm64) hca_1.13.0.tgz
Source Repository git clone
Source Repository (Developer Access) git clone
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