Aider

Aider is a terminal-based AI pair programming tool that edits code directly in your local repository and automatically creates Git commits.

Installation

pip install aider-chat

Or with pipx (recommended to avoid dependency conflicts):

pipx install aider-chat

Configuration & Launch

Option 1: Environment Variables (Recommended — persists across sessions)

Mac / Linux (zsh)

echo 'export OPENAI_API_KEY="sk-your-api-key"' >> ~/.zshrc
echo 'export OPENAI_API_BASE="https://api.ephone.ai/v1"' >> ~/.zshrc
source ~/.zshrc

Mac / Linux (bash)

echo 'export OPENAI_API_KEY="sk-your-api-key"' >> ~/.bashrc
echo 'export OPENAI_API_BASE="https://api.ephone.ai/v1"' >> ~/.bashrc
source ~/.bashrc

Windows (PowerShell)

[Environment]::SetEnvironmentVariable("OPENAI_API_KEY", "sk-your-api-key", "User")
[Environment]::SetEnvironmentVariable("OPENAI_API_BASE", "https://api.ephone.ai/v1", "User")

After setting the variables, navigate to your project and start:

cd your-project
aider --model gpt-4o

Option 2: CLI Arguments (One-off use)

aider \
  --openai-api-key sk-your-api-key \
  --openai-api-base https://api.ephone.ai/v1 \
  --model gpt-4o

Using Anthropic Models

# Set environment variables
export ANTHROPIC_API_KEY="sk-your-api-key"
export ANTHROPIC_BASE_URL="https://api.ephone.ai/anthropic"

# Start with a Claude model
aider --model claude-opus-4-5-20251101

Using a `.aider.conf.yml` Config File

Create .aider.conf.yml in your project root to avoid passing flags every time:

openai-api-key: sk-your-api-key
openai-api-base: https://api.ephone.ai/v1
model: gpt-4o

Common Commands

Inside the Aider interactive session:

Command	Description
`/add <file>`	Add a file to the current editing context
`/drop <file>`	Remove a file from the context
`/diff`	Show all code changes made in this session
`/undo`	Undo the last AI-generated Git commit
`/commit`	Commit current changes
`/model <name>`	Switch to a different model
`/exit`	Exit Aider

Recommended Models

Use Case	Recommended Model
General coding	`gpt-4o`
Complex refactoring	`claude-opus-4-5-20251101`
Fast iteration	`gpt-4o-mini`

Aider automatically commits all changes to Git by default. Start from a clean Git state so you can easily roll back with /undo.

Development Tools & Platforms

Translation Tools

Integration Applications

Installation

Configuration & Launch

Option 1: Environment Variables (Recommended — persists across sessions)

Option 2: CLI Arguments (One-off use)

Using Anthropic Models

Using a `.aider.conf.yml` Config File

Common Commands

Recommended Models

​Installation

​Configuration & Launch

​Option 1: Environment Variables (Recommended — persists across sessions)

​Option 2: CLI Arguments (One-off use)

​Using Anthropic Models

​Using a .aider.conf.yml Config File

​Common Commands

​Recommended Models

Installation

Configuration & Launch

Option 1: Environment Variables (Recommended — persists across sessions)

Option 2: CLI Arguments (One-off use)

Using Anthropic Models

Using a `.aider.conf.yml` Config File

Common Commands

Recommended Models