McKinney Code is a local-first, autonomous software-engineering agent. It plans, writes code, runs tests, debugs itself, researches the web, drives a real browser, and deploys — all on your own computer, powered by a local model.
$ mckinney do "build a todo API, test it, and deploy it" (agent · autonomous · llama3.1:8b · local) → update_plan scaffold · api · tests · deploy ✓ wrote src/server.mjs, src/db.mjs, tests/api.test.mjs ✓ run_command: node --test → 6 passing → browser_check http://127.0.0.1:3000 → 200, no errors ✓ git checkpoint · built · deployed [done · 9 iterations · no cloud]
50+ built-in tools plus unlimited extensions, driven by an agent that doesn't stop until the work is verified.
Plans, codes, runs, observes, fixes, re-tests — and refuses to call it "done" until the build and tests actually pass.
Your code and prompts stay on your machine. Use a local model (Ollama) with zero per-token cost, or plug in any provider.
Drives a real browser to test logins and workflows, reads other sites to learn from, and searches the web for docs and fixes.
SQLite, Postgres & MySQL with schema, queries, migrations and seeds — production data is always protected.
Produces a build, deploys it, opens it, and verifies it live. Local, SSH, or any provider CLI (Vercel/Netlify/Cloudflare).
Point it at a project and it finds failures, fixes them, and keeps your build green — on demand or on every file change.
Hand it a screenshot of a broken UI or an error dialog and it diagnoses the problem — with a local vision model.
Connect any MCP tool server and new capabilities appear instantly — no code changes to the agent.
Granular permissions, a full audit trail, secret redaction, and destructive operations always gated behind confirmation.
No cloud account required to start — just your machine and a local model.
Download the single-file app for your OS and run it. No Node, no setup.
Start your free trial, then mckinney license activate <key>.
Open a project and just say what you need — mckinney do "…" or use the built-in app.
Start with a free trial. Subscribe when you're ready — cancel anytime.
One file. No dependencies. Pair it with a local model (Ollama) for fully offline operation.