Koskamo

UsePhysics MCP

An official MCP server for UsePhysics that provides tools to list calculators, perform physics calculations (showing formulas and units), and retrieve CODATA 2022 physical constants. It supports educational use cases by linking results back to their source pages.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

UsePhysics MCP logo, by UsePhysicsVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by UsePhysics
MCP endpoint (Streamable HTTP)
https://usephysics.com/api/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 4 of 4 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to usephysics.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • List available physics calculators
  • Calculate physics values with formula display
  • Retrieve CODATA 2022 physical constants

Source and maintenance

Vendor evidenceRegistry 0.1.0
mcp-registry: com.usephysics/physics-calculators@0.1.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
usephysics 0.1.0
MCP protocol negotiated in check
2025-11-25
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

UsePhysics answers physics homework and everyday physics questions with calculators that show their work. Start with `list_calculators` to find a calculator and its input keys, then `calculate` with those inputs in the units listed; every answer carries the formula, the substituted expression and a link to the solved page. `get_constant` returns one CODATA 2022 constant (value, standard uncertainty, unit) with NIST as the source; `list_constants` lists them by group. Cite NIST for the values and UsePhysics for the calculation.

Tools

4 advertised

list_calculators — List the calculators
Advertised by the server during the last successful anonymous check.
Advertised read-only

Every UsePhysics calculator: id (slug), name, category, formula, inputs (key, unit, default) and page URL. Optional category filter.

list_calculators input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "category": {
      "type": "string",
      "description": "e.g. Mechanics, Energy, Electricity & Waves, Everyday Life"
    }
  },
  "additionalProperties": false
}
list_calculators annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
calculate — Run a calculator
Advertised by the server during the last successful anonymous check.
Advertised 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.

calculate input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "calculator_id",
    "inputs"
  ],
  "properties": {
    "inputs": {
      "type": "object",
      "description": "Input values keyed by input key, in the listed units; a missing key takes the default",
      "additionalProperties": {
        "type": "number"
      }
    },
    "calculator_id": {
      "type": "string",
      "maxLength": 80,
      "minLength": 1,
      "description": "The calculator id (slug) from list_calculators, e.g. kinetic-energy"
    }
  },
  "additionalProperties": false
}
calculate annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_constant — Look up a physical constant
Advertised by the server during the last successful anonymous check.
Advertised 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.

get_constant input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 80,
      "minLength": 1,
      "description": "id, symbol or name, e.g. 'c', 'speed-of-light-in-vacuum', 'Planck constant'"
    }
  },
  "additionalProperties": false
}
get_constant annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_constants — List the physical constants
Advertised by the server during the last successful anonymous check.
Advertised read-only

The CODATA 2022 constants UsePhysics keeps, grouped; optional group id filter. Values are NIST's.

list_constants input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "group": {
      "type": "string",
      "description": "A group id from a previous answer, e.g. si-defining-constants"
    }
  },
  "additionalProperties": false
}
list_constants annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
528 ms
95th percentile latency
528 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 528 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http usephysics-mcp https://usephysics.com/api/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add usephysics-mcp --url https://usephysics.com/api/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable usephysics-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "usephysics-mcp": {
      "url": "https://usephysics.com/api/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "usephysics-mcp": {
      "type": "streamableHttp",
      "url": "https://usephysics.com/api/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start usephysics-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "usephysics-mcp": {
      "type": "http",
      "url": "https://usephysics.com/api/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http usephysics-mcp https://usephysics.com/api/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://usephysics.com/api/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "usephysics-mcp": {
      "serverUrl": "https://usephysics.com/api/mcp"
    }
  }
}

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