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Cline — along with its fork, Roo Code — provides an OpenAI-compatible provider that accepts a base URL, API key, and any model ID. That’s the simplest route for Hostlinku; an alternative route via the Anthropic provider is discussed below. Using Kilo Code? See the specific guide at Kilo Code.

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Plan/Act Mode with Different Models

Cline can use different models for the Plan and Act modes. A common cost-effective combination: Plan = claude-opus-4-6 or gpt-5-5 (reasoning), Act = claude-sonnet-4-6 or deepseek-v4-flash (execution). Enable “Use different models for Plan and Act modes” in the settings, then enter the same provider profile with different model IDs.

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Alternative: Anthropic

Cline also has a provider called Anthropic with a Use custom base URL option. Enter https://api.hostlinku.com (without /v1) and your Hostlinku API key. The difference: the list of models for this provider is limited to IDs recognized by Cline—select a Claude model whose slug matches the one in the Hostlinku catalog (e.g., claude-sonnet-4-6, claude-haiku-4-5). For non-Claude models or slugs not listed, use OpenAI Compatible. Cline: Anthropic provider with "Use custom base URL" set to https://api.hostlinku.com

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Cline CLI

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Troubleshooting

  • 401 — Invalid or revoked key. In Roo Code, make sure the key is entered in the profile of the provider that is currently active, not another profile.
  • 404 model_not_found — Incorrect model ID; copy it from GET /v1/models.
  • 404 on all requests — the base URL is missing /v1 (OpenAI path) or actually uses /v1 in Anthropic path. Compare it to the screenshot above.
  • Empty response in Act mode — a model without tool calling. Use a model from the recommendations in Overview.
  • Context runs out quickly — set the Context Window Size according to the catalog so that Cline truncates the history correctly.