Percentage Calculate MCP tool

MCP findutils:percentage_calculate

Percentage math. Modes: percent_of (a% of b), what_percent (a is what % of b), percent_change (from a to b).

Needs an API key. Running a tool needs an API key. Keys are not for sale yet: ask for early access. About API keys

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Arguments

application/json

mode

string required

Calculation mode. One of percent_of · what_percent · percent_change.
a

number required

First value.
b

number required

Second value.

Example arguments

Verified

{
  "mode": "percent_of",
  "a": 20,
  "b": 50
}

claude mcp add findutils --transport http https://mcp.findutils.com/ --header "Authorization: Bearer YOUR_API_KEY"

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

curl -X POST https://mcp.findutils.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "percentage_calculate",
      "arguments": {
        "mode": "percent_of",
        "a": 20,
        "b": 50
      }
    }
  }'

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/percentage-calculate/execute.

REST reference

Rate limit: 120 a minute, per IP
Auth: API key
REST id: percentage-calculate
MCP name: percentage_calculate
Category: Calculators
Machine-readable: openapi.json · markdown.md

Arguments

Example arguments

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