Obra Cto runs on your own machine — the client starts it, so there is no endpoint to ping. 70 installs a week from npm. Last commit 4 Jul 2026.
Local-first MCP that scores your codebase's build readiness. Your code never leaves your machine.
What the code does
We read the source, 5 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const child = spawn(cmd, { cwd, shell: true });
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add obra-cto -- npx -y obra-cto{
"mcpServers": {
"obra-cto": {
"command": "npx",
"args": [
"-y",
"obra-cto"
]
}
}
}[mcp_servers.obra-cto]
command = "npx"
args = ["-y", "obra-cto"]{
"mcpServers": {
"obra-cto": {
"command": "npx",
"args": [
"-y",
"obra-cto"
]
}
}
}{
"servers": {
"obra-cto": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"obra-cto"
]
}
}
}Alternatives to Obra Cto
same job, measured the same wayLocal-first MCP server that reconstructs architecture, workflows and business rules from your code.
Log expenses and export clean reports for tax time - your ledger never leaves your machine.
Local-first MCP server: version-correct library docs, code map, and offline drift for your repo.
Local-first codebase intelligence MCP server for AI coding agents.
Finds the coverage gates in your repo that can never fail a build
Phone-first local dev MCP for Claude Code and Codex: install Yaver, pair mobile, run, build, deploy.
Reports real token usage and cost from Claude Code and OpenCode data. Nothing leaves your machine.
Code review on your own machine, for you and your coding agent. Nothing leaves your computer.
Obra Cto — questions
Answers built from our own checks of this server.