How to Use Aider 2026
Aider is the most popular open-source terminal AI coding tool. It edits files in your project, commits changes, and integrates with any model. Step 1 — Install bash pip install aider-chat Or: bash pipx install aider-chat Step 2 — Set API Key bash export OPENAIAPIKEY=sk-... or export ANTHROPICAPIKEY=sk-ant-... Step 3 — Open Your Project bash cd your-project aider Aider starts a REPL. It detects yo…