Other tools

Most tools need two settings: a base URL and a key.

Set up

1. Create a key in API keys.
2. Choose the provider type that matches what the tool offers.

3. Paste your sk-df-... key as the API key. Anthropic tools may call it an auth token.
4. Enter an exact model id from the Models page.
5. If the tool asks for a context window or output limit, copy them from the model's page.

If the tool lets you pick an API style, choose Chat Completions. Choose Responses only when the tool supports nothing else.

Verify

Check the connection with curl.

curl https://deference.si/v1/key \
  -H "Authorization: Bearer $DEFERENCE_API_KEY"

The response names your key and shows its available credit. Send a prompt from the tool, then open Activity: the request is the top row.

Aider

Aider reads an OpenAI-compatible endpoint from OPENAI_API_BASE and OPENAI_API_KEY, and needs the openai/ prefix on the model.

export OPENAI_API_BASE="https://deference.si/v1"
export OPENAI_API_KEY="$DEFERENCE_API_KEY"
aider --model openai/anthropic/claude-sonnet-5.5

$env:OPENAI_API_BASE = "https://deference.si/v1"
$env:OPENAI_API_KEY = $env:DEFERENCE_API_KEY
aider --model openai/anthropic/claude-sonnet-5.5

The openai/ prefix tells Aider to use the OpenAI-compatible path. The rest is the exact model id. Pass --weak-model with another full id to use a smaller model for commit messages.

Roo Code

Choose the OpenAI Compatible provider and use the settings in Set up.

Troubleshooting