mcplite: Lightweight Stdio MCP Server for R

Provides a lightweight Model Context Protocol (MCP) server for exposing 'R' functions as tools over standard input and output ('stdio'). Designed for local, client-launched integrations, with protocol-aware tool definitions and results, JSON Schema helpers, and optional interoperability with 'ellmer'.

Version: 0.1.0
Depends: R (≥ 4.1.0)
Imports: jsonlite, nanonext (≥ 1.6.0), otel
Suggests: ellmer (≥ 0.3.0), otelsdk, processx, testthat (≥ 3.0.0), withr
Published: 2026-08-03
DOI: 10.32614/CRAN.package.mcplite (may not be active yet)
Author: Juha Itkonen [aut, cre, cph]
Maintainer: Juha Itkonen <juha at tosidata.com>
BugReports: https://github.com/tosidata/mcplite/issues
License: MIT + file LICENSE
URL: https://tosidata.github.io/mcplite/, https://github.com/tosidata/mcplite
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: mcplite results

Documentation:

Reference manual: mcplite.html , mcplite.pdf

Downloads:

Package source: mcplite_0.1.0.tar.gz
Windows binaries: r-devel: mcplite_0.1.0.zip, r-release: not available, r-oldrel: mcplite_0.1.0.zip
macOS binaries: r-release (arm64): mcplite_0.1.0.tgz, r-oldrel (arm64): mcplite_0.1.0.tgz, r-release (x86_64): mcplite_0.1.0.tgz, r-oldrel (x86_64): mcplite_0.1.0.tgz

Linking:

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