Normalized HTTP Transport with Circuit Breaking and Caching R package biohttp version 0.1.2 Web service calls return a normalized result value instead of raising a condition, so a caller branches on data rather than on an error handler. Transport failure, a non-success status code, and an unreadable response body are reported as three distinct outcomes. Per-host circuit breaking, retry with a transient-failure predicate, optional throttling, redacted request headers, and a success-only cache come as defaults. Many questions to one source can be asked as a single batch, where only the entries the cache is missing reach the network. Service-specific knowledge is left to the client packages built on top. The circuit breaker is the pattern described in Nygard (2018, ISBN:9781680502398). Software Depends: R (>= 4.0) Imports: cachem, curl, httr2, jsonlite, rlang, tools Suggests: knitr, rmarkdown, testthat (>= 3.0.0), webfakes, withr Samuel Bharti <samuelbharti.io@gmail.com> Comprehensive R Archive Network (CRAN) Samuel Bharti [aut, cre, cph] (ORCID: <https://orcid.org/0000-0003-4190-7058>) MIT + file LICENSE (https://CRAN.R-project.org/package=biohttp/LICENSE) 2026-09-03 application/tgz https://CRAN.R-project.org/package=biohttp doi:10.32614/CRAN.package.biohttp en-US