inst/ATTRIBUTION.md

In OECDdata: Fast and Friendly Access to OECD Data

Attribution, provenance and licenses

Package-owned code, documentation and synthetic fixtures: Copyright (c) 2026 Alek Rutkowski [e-mail], MIT license.

Interface provenance

The public interface is modeled on eurodata 1.8.0, authored by Aleksander Rutkowski. Its CRAN DESCRIPTION, NAMESPACE, help descriptions and public calling conventions were reviewed on 16 October 2026. Its GPL-2 implementation is not bundled, linked as a runtime dependency, or copied into this independently written MIT implementation. Shared workflow conventions are explicitly acknowledged. Public arguments, classes and dataset selection are adapted to OECD rather than copied verbatim.

Upstream: https://cran.r-project.org/package=eurodata CRAN mirror: https://github.com/cran/eurodata

Runtime dependencies

All dependencies retain their original copyright notices, authors and licenses. No dependency source code is vendored. The exact installed license and author records can be inspected with utils::packageDescription().

| Dependency | Contribution | Official project/documentation | |---|---|---| | data.table | Native CSV parser, efficient joins, grouping and reference updates | https://r-datatable.com/ | | curl | libcurl-backed HTTPS transfer, URL encoding and HTTP-date parsing | https://jeroen.r-universe.dev/curl | | digest | SHA-256 request identities and response checksums | https://eddelbuettel.github.io/digest/ | | magrittr | Functional pipe syntax | https://magrittr.tidyverse.org/ | | xml2 | libxml2-backed namespace-independent structure parsing | https://xml2.r-lib.org/ | | R utils | Package metadata, version comparison, browser/report utilities | https://www.r-project.org/ |

data.table and the native libraries behind curl and xml2 provide the native performance used by this package. No custom C, Rcpp or cpp11 extension is needed.

Development and documentation dependencies

testthat supplies assertions and scoped mocked bindings; withr restores options and cleans temporary resources; knitr and rmarkdown build the offline vignette. Maintainer scripts optionally use rcmdcheck and an installed copy of eurodata for a mapped public-interface comparison. GitHub workflows use r-lib/actions and GitHub-maintained actions. These tools retain their own licenses.

• https://testthat.r-lib.org/
• https://withr.r-lib.org/
• https://yihui.org/knitr/
• https://rmarkdown.rstudio.com/
• https://rcmdcheck.r-lib.org/
• https://github.com/r-lib/actions

Inspect installed dependency provenance programmatically:

packages <- c("data.table", "curl", "digest", "magrittr", "xml2", "utils",
              "testthat", "withr", "knitr", "rmarkdown")
lapply(packages, function(p) utils::packageDescription(p)[c("Package", "Version",
                                                          "Author", "License")])

OECD and SDMX

OECD supplies the public API and its metadata; the SDMX community specifies the exchange formats and REST contracts. This independent client is not endorsed by either organization. The MIT license on this client does not replace terms for OECD or third-party data obtained through it.

All bundled observations and metadata are invented fixtures with a TEST agency. They are not republished OECD statistics. No live statistical response or downloaded personal data is included in the release.

OECDdata documentation built on Oct. 31, 2026, 1:07 a.m.