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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "physics-calculators": {
      "type": "http",
      "url": "https://usephysics.com/api/mcp"
    }
  }
}

claude mcp add --transport http physics-calculators https://usephysics.com/api/mcp

[mcp_servers.physics-calculators]
url = "https://usephysics.com/api/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "physics-calculators": {
      "type": "remote",
      "url": "https://usephysics.com/api/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "physics-calculators": {
      "type": "http",
      "url": "https://usephysics.com/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=physics-calculators&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vdXNlcGh5c2ljcy5jb20vYXBpL21jcCJ9"
}

{
  "servers": {
    "physics-calculators": {
      "type": "http",
      "url": "https://usephysics.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "physics-calculators": {
      "httpUrl": "https://usephysics.com/api/mcp"
    }
  }
}

extensions:
  "physics-calculators":
    enabled: true
    name: "physics-calculators"
    type: streamable_http
    uri: "https://usephysics.com/api/mcp"
    timeout: 300

Quality 89 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene100 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations4 of 4 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 573 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 4 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 573 tokens to load them all · tool set 3224ce57561f · checked 2026-11-07 17:28 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance85

liveness100

freshness100

hygiene100

+repository +dns-namespace +website +reachable +uptime-100% +updated-4d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://usephysics.com/api/mcp` streamable-http	none	yes	100%	389 ms	2025-11-25	2026-11-07

Tools (4)

`calculate`read-only	Run one calculator by id with numeric inputs (keys from list_calculators, in the listed units). Returns every result with its unit, the formula, the Given → Formula → Substitute → Result working when the engine can derive it, and the URL of the solved page.
`get_constant`read-only	One CODATA 2022 constant by id, symbol or name (e.g. 'c', 'speed of light', 'planck-constant'): value as NIST prints it, machine-readable value, standard uncertainty (null = exact), unit, note, page and NIST source.
`list_calculators`read-only	Every UsePhysics calculator: id (slug), name, category, formula, inputs (key, unit, default) and page URL. Optional category filter.
`list_constants`read-only	The CODATA 2022 constants UsePhysics keeps, grouped; optional group id filter. Values are NIST's.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.usephysics/physics-calculators",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://usephysics.com/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.0",
  "repository": {
    "url": "https://github.com/jukkablomberg/usephysics",
    "source": "github"
  },
  "websiteUrl": "https://usephysics.com",
  "description": "Physics calculators that show their work, plus the CODATA 2022 constants. Educational use."
}