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Posted on Originally published at apivai.com

How to Connect Roo Code to APIVAI (Cheap API for an AI Coding Agent)

Connect Roo Code to APIVAI

Roo Code (formerly Roo Cline) is a popular autonomous
coding agent for VS Code. It supports OpenAI-compatible providers, so you can run it on APIVAI's
Claude and GPT models — agentic edits cost a lot of tokens, so a cheap compatible gateway matters.

Configure the provider

  1. Open Roo Code's settings (the gear icon in the Roo panel).
  2. API Provider: choose OpenAI Compatible.
  3. Set:
    • Base URL: https://api.apivai.com/v1
    • API Key: your APIVAI key
    • Model: a name APIVAI serves (e.g. claude-sonnet-4-6 or gpt-5.5)
  4. Save.

Roo Code now routes its requests through APIVAI.

Pick a model

Confirm valid names:

curl -s https://api.apivai.com/v1/models \
  -H "Authorization: Bearer $APIVAI_API_KEY"
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Claude Sonnet is a strong default for agentic coding; use it for multi-step edits and reasoning.

Tips for agent workloads

  • Agents send many large requests — a discounted gateway like APIVAI noticeably lowers the bill.
  • Prefer a model with a large context window for big files/repos.
  • Make sure streaming passes through so you see progress as the agent works.

Troubleshooting

  • 401 — check the key and that the provider is "OpenAI Compatible" with Base URL ending /v1.
  • model_not_found — use a name from /v1/models.
  • Truncated output — raise max tokens / pick a larger-context model.

FAQ

Does Roo Code work with APIVAI? Yes — select "OpenAI Compatible", set Base URL
https://api.apivai.com/v1 and your APIVAI key.

Which model for Roo Code? Claude Sonnet for agentic coding and reasoning; GPT-5.5 for faster,
cheaper runs.

Why use a gateway for an agent? Coding agents burn tokens; APIVAI's discounted, OpenAI-compatible
access cuts the cost without changing your workflow.

Get started

Set the OpenAI-compatible provider in Roo Code with APIVAI's base URL + key and a model from
/v1/models. Examples: APIVAI examples repo.

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