{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_5qax8kekrsqg","handle":"calculator-mcp-rubens","url":"https://wellknown.network/agents/calculator-mcp-rubens","links":{"self":"https://wellknown.network/agents/calculator-mcp-rubens/record.json","html":"https://wellknown.network/agents/calculator-mcp-rubens","markdown":"https://wellknown.network/agents/calculator-mcp-rubens/record.md","api":"https://wellknown.network/api/v1/agents/calculator-mcp-rubens","status":"https://wellknown.network/api/v1/agents/calculator-mcp-rubens/status","claim":"https://wellknown.network/agents/calculator-mcp-rubens/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/calculator-mcp-rubens/claim.json","badge":"https://wellknown.network/agents/calculator-mcp-rubens/badge.svg","openapi":"https://wellknown.network/openapi.json"},"ard":{"identifier":"urn:air::server:calculator-mcp-rubens","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"calculator-mcp-rubens","summary":"A calculator MCP server","description":"# Calculator MCP Server\n\nAn MCP (Model Context Protocol) server that exposes calculator operations as\ntools. Each tool delegates computation to the `calculator-lib-rubens` library.\n\n## Features\n\n16 calculator tools available via MCP:\n\n**Two-operand operations**: `add`, `subtract`, `multiply`, `divide`, `power`,\n`nth_root`, `modulo`, `floor_divide`\n\n**Single-operand operations**: `sqrt`, `absolute`, `floor`, `ceil`, `log10`,\n`ln`, `exp`\n\n**Rounding**: `round_number` (with configurable decimal places)\n\n## Prerequisites\n\n- Python 3.14+\n- [Poetry](https://python-poetry.org/) for dependency management\n- Docker 23+ with the buildx and compose plugins (optional, for running the\n  server in a container)\n\n## Installation\n\n```bash\npoetry install\n```\n\n## Configuration\n\nThe server ships with a default `config.yaml` bundled inside the package.\nTo override it, set the `CALCULATOR_MCP_CONFIG` environment variable to\nthe absolute path of your custom configuration file:\n\n```bash\nexport CALCULATOR_MCP_CONFIG=/path/to/your/config.yaml\n```\n\nWhen `CALCULATOR_MCP_CONFIG` is not set, the bundled default is used\nautomatically.\n\nThe configuration file has two sections:\n\n```yaml\nserver:\n    transport: \"http\"     # \"stdio\" or \"http\"\n    host: \"0.0.0.0\"       # Host for HTTP transport (0.0.0.0 = all interfaces)\n    port: 9000            # Port for HTTP transport\n    timeout: 10           # Tool execution timeout in seconds\n\nclient:\n    is_oauth: false                        # Enable OAuth authentication\n    url: \"http://127.0.0.1:9000/mcp\"       # Server URL for HTTP transport\n    token_dir: \"/home/user/.fastmcp\"       # OAuth token storage directory\n    callback_port: 10000                   # OAuth callback server port\n```\n\nThe `logging` section controls Python logging via `dictConfig`.\nThe default configuration logs `calculator_mcp` messages at `INFO` level to\nstderr.\n\n## Running the Server\n\nThere are three ways to start the server:\n\n**Console script** (installed by Poetry):\n\n```bash\n# req…","publisher":{"name":"Rubens Gomes","url":null},"homepage":"https://github.com/rubensgomes/calculator-mcp/README.md","repository":"https://github.com/rubensgomes/calculator-mcp/README.md","version":"0.3.0","license":null,"protocols":["mcp"],"tags":["math","calculator","utility","mcp"],"pricing":null,"endpoints":[{"url":"pypi:calculator-mcp-rubens","type":"package_pypi","auth":null,"probeable":false}],"skills":null,"tools":null,"extra":null,"attribution":{"kind":"pypi","name":"pypi","repoUrl":"pypi","summary":"pypi","version":"pypi","description":"pypi","homepageUrl":"pypi","publisherName":"pypi"}},"derived":{"capabilities":[{"slug":"security.identity","name":"Identity & Access","confidence":0.836,"provenance":"derived"}],"categories":["security"],"language":"en"},"observed":{"status":"unknown","statusReason":"Distributed as a package to run locally; no network endpoint to check.","lastOkAt":null,"lastProbedAt":null,"statusComputedAt":null,"reliability30d":null,"latestObservations":[],"tools":null,"package":{"name":"calculator-mcp-rubens","registry":"pypi","observedAt":"2026-09-09T11:31:53.800Z","publishedAt":"2026-08-20T01:27:39.414510Z","latestVersion":"0.3.0"}},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"pypi","key":"calculator-mcp-rubens","url":"https://pypi.org/project/calculator-mcp-rubens/","firstSeenAt":"2026-09-09T11:29:24.052Z","fetchedAt":"2026-09-09T11:29:24.052Z","normalizedAt":"2026-09-09T11:29:24.052Z"}]},"firstSeenAt":"2026-09-09T11:29:24.052Z","updatedAt":"2026-09-09T11:31:53.800Z"}