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Aider

Aider is an open-source pair-programming tool for the terminal that edits files in your git repository. It talks to any OpenAI-compatible API.

Copies this page's setup instructions, to paste into your coding agent.
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Help me set this up to use Bayle AI, an OpenAI-compatible API. Full guide: https://docs.bayle.ai/guides/coding-tools/aider/

Goal: set up Aider (https://aider.chat) to pair-program with a Bayle model.

1. Install Aider if `aider --version` fails:
   python -m pip install aider-install
   aider-install
2. Configure it. Export these in my shell profile or the current shell (the key stays in the environment):
   export OPENAI_API_BASE="https://api.bayle.ai"
   export OPENAI_API_KEY="$BAYLE_API_KEY"
   To keep the non-secret settings, create .aider.conf.yml in my repository or home directory:
   openai-api-base: https://api.bayle.ai
   model: openai/MODEL_ID
   The `openai/` prefix only tells Aider to use its OpenAI-compatible client; Bayle never receives it.
3. Pick a model suited to code:
   curl -s "https://api.bayle.ai/models?type=text" \
     | jq -r '.data[] | select(.model_spec.capabilities.optimizedForCode) | .id'
   Show me the list, let me choose, and use that id as MODEL_ID.
4. Verify with a short non-interactive run on the chosen model:
   aider --model openai/MODEL_ID --message "Reply with the word ready and change nothing." --no-git --yes-always
   Aider warns that it does not know the model's context size or price. That is expected.

Rules:
1. The base URL is https://api.bayle.ai exactly as written. Append no path to it.
2. Read the key from the BAYLE_API_KEY environment variable. Never write the key itself into a file you create, a command, a commit or the chat. Where the tool keeps the key in its own settings screen, tell me where to paste it. If BAYLE_API_KEY is not set, stop and ask me to create a key at https://chat.bayle.ai/developers and export it.
3. Take model ids only from GET https://api.bayle.ai/models (no key needed). Never guess one.
4. Finish with one real test request, show me the result and list the files you changed.

Install

Section titled “Install”
Terminal window
python -m pip install aider-install
aider-install

This installs Aider in its own Python environment. See the official install guide for other methods.

Configure

Section titled “Configure”
Don't have a Bayle key yet?Get API key

Point Aider’s OpenAI settings at Bayle and prefix the model id with openai/:

Terminal window
export OPENAI_API_BASE="https://api.bayle.ai"
export OPENAI_API_KEY="$BAYLE_API_KEY"


aider --model openai/MODEL_ID
  • The openai/ prefix tells Aider to use the OpenAI-compatible client; it is not part of the id Bayle receives.

To keep it, put the non-secret settings in .aider.conf.yml in your repository or home directory, and leave the key in the environment:

openai-api-base: https://api.bayle.ai
model: openai/MODEL_ID

Pick a model

Section titled “Pick a model”
Terminal window
curl -s "https://api.bayle.ai/models?type=text" \
  | jq -r '.data[] | select(.model_spec.capabilities.optimizedForCode) | .id'

Aider will warn that it doesn’t know the model’s context size or price. That’s expected for a model it has no built-in entry for, and it still works.