brickset: An R Package to Interface with the Brickset API for Getting Data About LEGO sets

Author: Jason Bryer, Ph.D. jason@bryer.org
Website: https://jbryer.github.io/brickset/

This package provides functions to access data about LEGO sets from the Brickset website. The package also contains a data.frame with all LEGO sets (n = 21,546) from 1970 through 2025. This data set was created using the getSets function and it is recommended that you use this data frame to reduce the number of API calls. See the build.R script for how the data frame was created. Information about the variables is included below.

Installation

You can download from CRAN using:

install.packages('brickset')

Or the latest development version using the remotes package:

remotes::install_github('jbryer/brickset')

Brickset API

To use the Brickset API, you must first create a Brickset account and request an API key. The full Brickset API documentation is available here: https://brickset.com/article/52664/api-version-3-documentation

Most of the functions require a Brickset username, password, and API key. You can pass these as parameters, or you can set these options:

options(brickset_key = 'YOUR_API_KEY',
        brickset_username = 'YOUR_USERNAME',
        brickset_password = 'YOUR_PASSWORD')

The checkKey function will verify that your API key is valid:

brickset::checkKey()
#> [1] TRUE

You can check your API usage with the getKeyUsageStats function.

brickset::getKeyUsageStats()
#>              dateStamp count
#> 1 2026-01-14T00:00:00Z    56

The getSets function returns all LEGO sets from the given year.

sets2021 <- brickset::getSets(2021)
head(sets2021, n = 3)
#>   setID number numberVariant                     name year theme   themeGroup
#> 1 31026  10278             1           Police Station 2021 Icons Model making
#> 2 31754  10279             1 Volkswagen T2 Camper Van 2021 Icons Model making
#> 3 31025  10280             1           Flower Bouquet 2021 Icons Model making
#>                       subtheme category released pieces minifigs
#> 1 Modular Buildings Collection   Normal     TRUE   2923        5
#> 2                     Vehicles   Normal     TRUE   2207       NA
#> 3         Botanical Collection   Normal     TRUE    756       NA
#>                         bricksetURL rating reviewCount packagingType
#> 1 https://brickset.com/sets/10278-1    4.3           4           Box
#> 2 https://brickset.com/sets/10279-1    3.9           0           Box
#> 3 https://brickset.com/sets/10280-1    4.0           3           Box
#>     availability agerange_min
#> 1 LEGO exclusive           18
#> 2 LEGO exclusive           18
#> 3         Retail           18
#>                                         thumbnailURL
#> 1 https://images.brickset.com/sets/small/10278-1.jpg
#> 2 https://images.brickset.com/sets/small/10279-1.jpg
#> 3 https://images.brickset.com/sets/small/10280-1.jpg
#>                                              imageURL US_retailPrice
#> 1 https://images.brickset.com/sets/images/10278-1.jpg         199.99
#> 2 https://images.brickset.com/sets/images/10279-1.jpg         179.99
#> 3 https://images.brickset.com/sets/images/10280-1.jpg          59.99
#>   US_dateFirstAvailable US_dateLastAvailable UK_retailPrice
#> 1  2021-01-02T00:00:00Z 2024-02-05T00:00:00Z         169.99
#> 2  2021-08-02T00:00:00Z 2022-11-12T00:00:00Z         139.99
#> 3  2021-01-02T00:00:00Z                 <NA>          54.99
#>   UK_dateFirstAvailable UK_dateLastAvailable CA_retailPrice
#> 1  2021-01-01T00:00:00Z 2024-01-12T00:00:00Z         269.99
#> 2  2021-08-01T00:00:00Z 2022-11-29T00:00:00Z         249.99
#> 3  2021-01-01T00:00:00Z                 <NA>          79.99
#>   CA_dateFirstAvailable CA_dateLastAvailable DE_retailPrice
#> 1  2021-01-02T00:00:00Z 2024-02-05T00:00:00Z         199.99
#> 2  2021-08-03T00:00:00Z 2022-11-12T00:00:00Z         159.99
#> 3  2021-01-02T00:00:00Z                 <NA>          59.99
#>   DE_dateFirstAvailable DE_dateLastAvailable height width depth weight
#> 1  2021-01-02T00:00:00Z 2024-02-19T00:00:00Z   47.6  57.7  11.8  4.012
#> 2  2021-08-02T00:00:00Z 2022-11-30T00:00:00Z   37.4  57.8  11.2  2.945
#> 3  2021-01-02T00:00:00Z                 <NA>   38.2  26.2   7.1  0.760

The getReviews function will return all reviews for a given set.

reviews29830 <- brickset::getReviews(29830)
names(reviews29830)
#>  [1] "author"             "datePosted"         "title"             
#>  [4] "review"             "HTML"               "overall"           
#>  [7] "parts"              "buildingExperience" "playability"       
#> [10] "valueForMoney"

The getThemes and getSubthemes returns information about LEGO themes.

getThemes() |> head(n = 3)
#>             theme setCount subthemeCount yearFrom yearTo
#> 1       4 Juniors       24             5     2003   2004
#> 2 Action Wheelers        9             0     2000   2001
#> 3 Advanced models       35            12     2000   2012
getSubthemes('Toy Story')
#>       theme          subtheme setCount yearFrom yearTo
#> 1 Toy Story Buildable Figures        2     2010   2010
#> 2 Toy Story     Original Film        2     2010   2010
#> 3 Toy Story       Toy Story 2        3     2010   2010
#> 4 Toy Story       Toy Story 3        8     2010   2010
getYears('Toy Story')
#>       theme year setCount
#> 1 Toy Story 2010       15

The getInstructions will return a table with the URLs to the building instructions.

instructions <- getInstructions(setID = 29830)
instructions
#>                                                                       URL
#> 1 https://www.lego.com/cdn/product-assets/product.bi.core.pdf/6313846.pdf
#> 2 https://www.lego.com/cdn/product-assets/product.bi.core.pdf/6313848.pdf
#> 3 https://www.lego.com/cdn/product-assets/product.bi.core.pdf/6313849.pdf
#> 4 https://www.lego.com/cdn/product-assets/product.bi.core.pdf/6313850.pdf
#>                             description
#> 1 BI 3103, 112+4/65+200G, 10270 V29 1/2
#> 2   BI 3103, 96+4/65+200G,10270 V29 2/2
#> 3   BI 3103, 112+4/65+200G, V39/142 1/2
#> 4    BI 3103, 96+4/65+200G, V39/142 2/2

legosets Dataset

The legosets data frame contains all LEGO sets (n = 21,546) from 1970 through 2025.

data("legosets", package = "brickset")
ggplot(legosets, aes(x = year)) + geom_bar() +
    ggtitle('Number of LEGO sets by year') +
    xlab('Year') + ylab('Number of LEGO Sets')

ggplot(legosets, aes(x = pieces, y = US_retailPrice)) + 
    geom_point() +
    ggtitle('Cost of LEGO sets by number of pieces') +
    xlab('Number of LEGO pieces') + ylab('US Retail Price (dollars)')

The variables in the legosets data frame are:

Code of Conduct

Please note that the brickset project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.