io.github.CloudCorpRecords/calcport
Safe arithmetic: evaluate expressions and add, subtract, multiply, divide.
Installation
Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).
@reneturcios/calcportclaude mcp add calcport -- npx -y @reneturcios/calcport@0.1.0 mcp{
"mcpServers": {
"calcport": {
"command": "npx",
"args": [
"-y",
"@reneturcios/calcport@0.1.0",
"mcp"
]
}
}
}ghcr.io/cloudcorprecords/calcport:0.1.0claude mcp add calcport -- docker run -i --rm ghcr.io/cloudcorprecords/calcport:0.1.0 mcp{
"mcpServers": {
"calcport": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/cloudcorprecords/calcport:0.1.0",
"mcp"
]
}
}
}Documentation
Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.
calcport
calcport does arithmetic safely. Its centrepiece is an expression
evaluator that understands the usual operators, parentheses, a handful
of functions, and the constants pi and e — and nothing else. The
evaluator is a hand-written parser, so an expression can never turn
into code execution, a shell call, or a property lookup. Around it sit
four single-purpose operations for callers that just need one sum,
difference, product, or quotient.
Install
npx @reneturcios/calcport calculate "2+3*4"Or run the container image:
docker run -i ghcr.io/cloudcorprecords/calcportThe container defaults to the MCP server (see below). Pass CLI arguments to use it as a CLI instead.
CLI
# Evaluate an expression
calcport calculate "sqrt(3^2 + 4^2) + pi"
# 8.141592653589793
# Single operations
calcport add 2 3 # 5
calcport subtract 10 4 # 6
calcport multiply 2.5 4 # 10
calcport divide 7 2 # 3.5
# Machine-readable output
calcport calculate "2^10" --json
calcport add 2 3 --json
calcport --versionExpressions may use + - * / % ^, parentheses, unary minus, the
functions sqrt, abs, floor, ceil, and round, and the
constants pi and e. ^ is right-associative, so 2^3^2 is 512.
Exit codes: 0 on success, 1 when a calculation cannot be done
(division by zero, a malformed expression — the error says why), 2
for usage errors.
MCP server
One bin serves both faces. The mcp subcommand starts a stdio MCP
server:
npx -y @reneturcios/calcport mcpMCP client configuration:
{
"mcpServers": {
"calcport": {
"command": "npx",
"args": ["-y", "@reneturcios/calcport", "mcp"]
}
}
}Tools
| Tool | Input | What it returns |
|---|---|---|
calculate | expression (string, required) | The numeric result of the expression, with the expression echoed back. |
add | a, b (numbers, required) | a + b, with both operands. |
subtract | a, b (numbers, required) | a - b, with both operands. |
multiply | a, b (numbers, required) | a * b, with both operands. |
divide | a, b (numbers, required) | a / b, with both operands. Dividing by zero is an error. |
Development
npm install
npm run build # tsc -> dist/
npm test # node test runner over test/*.test.ts, no network
npm run dev # run the CLI from source via tsxLicense
MIT — see LICENSE.
Questions fréquentes
Qu'est-ce que io.github.CloudCorpRecords/calcport ?
Safe arithmetic: evaluate expressions and add, subtract, multiply, divide.
Comment installer io.github.CloudCorpRecords/calcport ?
Il s'exécute sur votre machine. Dans Claude Code : claude mcp add calcport -- npx -y @reneturcios/calcport@0.1.0 mcp. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.
Faut-il une clé API pour io.github.CloudCorpRecords/calcport ?
Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.
io.github.CloudCorpRecords/calcport est-il open source ?
Oui. Son code est sur GitHub sous licence MIT.
Qui maintient io.github.CloudCorpRecords/calcport ?
Il est publié par CloudCorpRecords. AI.tn le référence sans le maintenir ni le recommander.
Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.