Listed from the MCP registry; nobody on Odel publishes it.
Env Contract
Local value-free environment contract and configuration drift inspection. Tools include inspect...
Runs on your machine from its package; the steps are below.
What it does
- Reads
- Writes
- High impact
At most: only reads or looks up information.
What it costs
FreeOdel charges nothing per call. The publisher may charge for its own service.
Runs locally over stdio
This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).
Run
npx -y env-contract-mcp
MCP client config
{
"mcpServers": {
"env-contract": {
"command": "npx",
"args": [
"-y",
"env-contract-mcp"
]
}
}
}env-contract-mcp
Env Contract is a local MCP tool for finding configuration drift before a project fails at runtime. It compares variable names declared in .env.example and dotenv files with likely environment references in source and config files.
Tool
inspect_contract: report declared names, referenced names, missing names, unused names, and the files where they occur.
Safety
- Reads local project files only; it never fetches URLs.
- Never reads or emits environment values. Only names and bounded file paths are returned.
- Ignores
node_modules, build output, coverage, and Git internals. - Caps file count, file size, recursion depth, and output.
- Matching is heuristic and is not a replacement for a build, deployment check, or secret scanner.
Set ENV_CONTRACT_ROOT to bound analysis to a workspace root. It defaults to the parent of the MCP package when launched normally.
Run
npm install
npm run build
node dist/index.js
