{
  "_id": "6a3ea87ba319ef941448cc9b",
  "Package": "mcptools",
  "Title": "Model Context Protocol Servers and Clients",
  "Version": "0.2.1.9000",
  "Authors@R": "c(\nperson(\"Simon\", \"Couch\", , \"simon.couch@posit.co\", role = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0001-5676-5107\")),\nperson(\"Winston\", \"Chang\", , \"winston@posit.co\", role = \"aut\",\ncomment = c(ORCID = \"0000-0002-1576-2126\")),\nperson(\"Charlie\", \"Gao\", , \"charlie.gao@posit.co\", role = \"aut\",\ncomment = c(ORCID = \"0000-0002-0750-061X\")),\nperson(\"Posit Software, PBC\", role = c(\"cph\", \"fnd\"),\ncomment = c(ROR = \"03wc8by49\"))\n)",
  "Description": "Implements the Model Context Protocol (MCP). Users can\nstart 'R'-based servers, serving functions as tools for large\nlanguage models to call before responding to the user in\nMCP-compatible apps like 'Claude Desktop' and 'Claude Code',\nwith options to run those tools inside of interactive 'R'\nsessions. On the other end, when 'R' is the client via the\n'ellmer' package, users can register tools from third-party MCP\nservers to integrate additional context into chats.",
  "License": "MIT + file LICENSE",
  "URL": "https://github.com/posit-dev/mcptools,\nhttps://posit-dev.github.io/mcptools/",
  "BugReports": "https://github.com/posit-dev/mcptools/issues",
  "VignetteBuilder": "knitr",
  "Config/Needs/website": "tidyverse/tidytemplate",
  "Config/testthat/edition": "3",
  "Encoding": "UTF-8",
  "Roxygen": "list(markdown = TRUE)",
  "Config/roxygen2/version": "8.0.0",
  "Config/pak/sysreqs": "cmake make libssl-dev zlib1g-dev",
  "Repository": "https://posit-dev.r-universe.dev",
  "Date/Publication": "2026-06-26 15:20:01 UTC",
  "RemoteUrl": "https://github.com/posit-dev/mcptools",
  "RemoteRef": "HEAD",
  "RemoteSha": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-06-26 16:22:08 UTC",
    "User": "root"
  },
  "Author": "Simon Couch [aut, cre] (ORCID: <https://orcid.org/0000-0001-5676-5107>),\nWinston Chang [aut] (ORCID: <https://orcid.org/0000-0002-1576-2126>),\nCharlie Gao [aut] (ORCID: <https://orcid.org/0000-0002-0750-061X>),\nPosit Software, PBC [cph, fnd] (ROR: <https://ror.org/03wc8by49>)",
  "Maintainer": "Simon Couch <simon.couch@posit.co>",
  "MD5sum": "5ea1b904c89422be978273975406e3b1",
  "_user": "posit-dev",
  "_type": "src",
  "_file": "mcptools_0.2.1.9000.tar.gz",
  "_fileid": "35c771e70130e8653f426995f7d3a27a4e20608c1dd1bb5efe7794d474e65de2",
  "_filesize": 831872,
  "_sha256": "35c771e70130e8653f426995f7d3a27a4e20608c1dd1bb5efe7794d474e65de2",
  "_created": "2026-06-26T16:22:08.000Z",
  "_published": "2026-06-26T16:27:39.440Z",
  "_distro": "resolute",
  "_jobs": [
    {
      "job": 83701878365,
      "time": 139,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7910756749"
    },
    {
      "job": 83701878322,
      "time": 137,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "7910756090"
    },
    {
      "job": 83701878295,
      "time": 134,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7910800732"
    },
    {
      "job": 83701878316,
      "time": 101,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "7910812713"
    },
    {
      "job": 83701269888,
      "time": 199,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "7910704518"
    },
    {
      "job": 83701878344,
      "time": 152,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7910761578"
    },
    {
      "job": 83701878326,
      "time": 73,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7910732677"
    },
    {
      "job": 83701878305,
      "time": 88,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7910738912"
    },
    {
      "job": 83701878298,
      "time": 99,
      "config": "windows-release",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "7910742165"
    }
  ],
  "_buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/posit-dev/mcptools",
  "_commit": {
    "id": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
    "author": "Simon P. Couch <simonpatrickcouch@gmail.com>",
    "committer": "GitHub <noreply@github.com>",
    "message": "various tightenings to the spec (#107)\n\n* honor MCP-Protocol-Version header\n\n* return after reporting the error with invalid stdio requests\n\n* serialize null values as JSON null",
    "time": 1782487201
  },
  "_maintainer": {
    "name": "Simon Couch",
    "email": "simon.couch@posit.co",
    "login": "simonpcouch",
    "mastodon": "@simonpcouch@fosstodon.org",
    "bluesky": "@simonpcouch.com",
    "description": "statistical software @posit-pbc",
    "uuid": 35748691,
    "orcid": "0000-0001-5676-5107"
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 4.1.0",
      "role": "Depends"
    },
    {
      "package": "cli",
      "role": "Imports"
    },
    {
      "package": "ellmer",
      "version": ">= 0.3.0",
      "role": "Imports"
    },
    {
      "package": "httpuv",
      "role": "Imports"
    },
    {
      "package": "httr2",
      "role": "Imports"
    },
    {
      "package": "jsonlite",
      "role": "Imports"
    },
    {
      "package": "nanonext",
      "version": ">= 1.6.0",
      "role": "Imports"
    },
    {
      "package": "processx",
      "role": "Imports"
    },
    {
      "package": "promises",
      "role": "Imports"
    },
    {
      "package": "rlang",
      "role": "Imports"
    },
    {
      "package": "yaml",
      "role": "Imports"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "withr",
      "role": "Suggests"
    }
  ],
  "_owner": "posit-dev",
  "_selfowned": true,
  "_usedby": 1,
  "_updates": [
    {
      "week": "2025-26",
      "n": 3
    },
    {
      "week": "2025-27",
      "n": 12
    },
    {
      "week": "2025-28",
      "n": 12
    },
    {
      "week": "2025-29",
      "n": 4
    },
    {
      "week": "2025-36",
      "n": 2
    },
    {
      "week": "2025-37",
      "n": 2
    },
    {
      "week": "2025-39",
      "n": 4
    },
    {
      "week": "2025-40",
      "n": 1
    },
    {
      "week": "2025-42",
      "n": 2
    },
    {
      "week": "2025-43",
      "n": 11
    },
    {
      "week": "2025-44",
      "n": 5
    },
    {
      "week": "2026-11",
      "n": 2
    },
    {
      "week": "2026-12",
      "n": 3
    },
    {
      "week": "2026-26",
      "n": 14
    }
  ],
  "_tags": [
    {
      "name": "v0.1.0",
      "date": "2025-07-18"
    },
    {
      "name": "v0.1.1",
      "date": "2025-09-08"
    },
    {
      "name": "v0.2.0",
      "date": "2025-10-29"
    },
    {
      "name": "v0.2.1",
      "date": "2026-03-17"
    }
  ],
  "_topics": [
    "mcp-server"
  ],
  "_stars": 178,
  "_contributors": [
    {
      "user": "simonpcouch",
      "count": 145,
      "uuid": 35748691
    },
    {
      "user": "shikokuchuo",
      "count": 32,
      "uuid": 53399081
    },
    {
      "user": "itkonen",
      "count": 2,
      "uuid": 37696708
    },
    {
      "user": "wch",
      "count": 2,
      "uuid": 86978
    },
    {
      "user": "galachad",
      "count": 1,
      "uuid": 4296390
    },
    {
      "user": "gadenbuie",
      "count": 1,
      "uuid": 5420529
    },
    {
      "user": "hfrick",
      "count": 1,
      "uuid": 12950918
    },
    {
      "user": "t-kalinowski",
      "count": 1,
      "uuid": 8462255
    },
    {
      "user": "mrcanofcatfood",
      "count": 1,
      "uuid": 281064006
    }
  ],
  "_userbio": {
    "uuid": 107264312,
    "type": "organization",
    "name": "posit-dev",
    "followers": 965
  },
  "_downloads": {
    "count": 1772,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/mcptools"
  },
  "_devurl": "https://github.com/posit-dev/mcptools",
  "_pkgdown": "https://posit-dev.github.io/mcptools/",
  "_searchresults": 97,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/mcptools.html",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/posit-dev/mcptools",
  "_realowner": "posit-dev",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.1.0",
      "date": "2025-07-18"
    },
    {
      "version": "0.1.1",
      "date": "2025-09-08"
    },
    {
      "version": "0.2.0",
      "date": "2025-10-29"
    },
    {
      "version": "0.2.1",
      "date": "2026-03-17"
    }
  ],
  "_exports": [
    "mcp_server",
    "mcp_session",
    "mcp_tools"
  ],
  "_help": [
    {
      "page": "client",
      "title": "R as a client: Define ellmer tools from MCP servers",
      "topics": [
        "client",
        "mcp_client",
        "mcp_tools"
      ]
    },
    {
      "page": "server",
      "title": "R as a server: Configure R-based tools with LLM-enabled apps",
      "topics": [
        "mcp_server",
        "mcp_session",
        "server"
      ]
    }
  ],
  "_pkglogo": "https://github.com/posit-dev/mcptools/raw/HEAD/man/figures/logo.png",
  "_readme": "https://github.com/posit-dev/mcptools/raw/HEAD/README.md",
  "_rundeps": [
    "askpass",
    "cli",
    "coro",
    "curl",
    "ellmer",
    "fastmap",
    "glue",
    "httpuv",
    "httr2",
    "jsonlite",
    "later",
    "lifecycle",
    "magrittr",
    "nanonext",
    "openssl",
    "otel",
    "pillar",
    "pkgconfig",
    "processx",
    "promises",
    "ps",
    "R6",
    "rappdirs",
    "Rcpp",
    "rlang",
    "S7",
    "sys",
    "tibble",
    "utf8",
    "vctrs",
    "withr",
    "yaml"
  ],
  "_vignettes": [
    {
      "source": "server.Rmd",
      "filename": "server.html",
      "title": "R as an MCP server",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The basics",
        "Posit Connect",
        "Multiple clients and R sessions",
        "Custom tools"
      ],
      "created": "2025-06-26 19:55:04",
      "modified": "2026-06-26 14:28:45",
      "commits": 10
    }
  ],
  "_score": 9.710964735852032,
  "_indexed": true,
  "_nocasepkg": "mcptools",
  "_universes": [
    "posit-dev",
    "simonpcouch"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:24:20.000Z",
      "distro": "resolute",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "dbd9cbe5e3676a41e5262eb1ab65b51a69755d25aa1d021f318860a8c0ce304b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:24:18.000Z",
      "distro": "resolute",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "a90adb43b429af56127ca8eca5bb3a424f59c7dfb11ae15c2757d41d5544191c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:26:21.000Z",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "ed13a825573b54e2f7ed0fea1cb7f6b5c6ffb8c051b7600f0243e44bbbd4a7bb",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:27:00.000Z",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "1e1d011630822b32a15204360cce278ad1bf252c455e8474efb46e5553b76adc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:24:55.000Z",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "266c5d7d7c763a991acd3e134b61c1a1797acd354d975411611246abb0e4b77b",
      "status": "success",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:23:09.000Z",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "bc323e459f22c4100e84acbfa170219d2edd05c9b848cd5e749f80ecc688d6b5",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:23:25.000Z",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "3675bdfacd6843f85fca48abe87c56c4eea7a6fd0e492a0620ca125f41dd990a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.2.1.9000",
      "date": "2026-06-26T16:23:32.000Z",
      "commit": "41a8807dbd4e4306ca1f79ea36b80431a7b65ab1",
      "fileid": "0b47b63660de9fcacf73ca0b66a66d17fdf3c24f19877a21b49cedb88b365868",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/posit-dev/actions/runs/28250702035"
    }
  ]
}