Env Linter MCP tool

MCP findutils:env_linter

Lint a dotenv file for duplicate keys, unquoted spaces, export prefixes, secret-looking values (masked), and drift against an optional .env.example. Returns issues and a masked key table. Does not execute the file.

Open the tool Try it

Arguments

application/json

env

string required

Contents of a .env file.
example

string optional

Optional .env.example contents for key drift checks.

Example arguments

Verified

{
  "env": "FOO=1\nFOO=2\n",
  "example": "FOO=\nBAR=\n"
}

claude mcp add findutils --transport http https://mcp.findutils.com/

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/"
    }
  }
}

curl -X POST https://mcp.findutils.com/ \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "env_linter",
      "arguments": {
        "env": "FOO=1\nFOO=2\n",
        "example": "FOO=\nBAR=\n"
      }
    }
  }'

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/env-linter/execute.

REST reference

Rate limit: 120 a minute, per IP
Auth: None
REST id: env-linter
MCP name: env_linter
Category: Developer
Machine-readable: openapi.json · markdown.md

Arguments

Example arguments

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