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214214<Note>
215215 If you authenticate through an [LLM gateway](/docs/en/llm-gateway), feature availability matches the underlying provider the gateway forwards to, except for the features Claude Code itself turns off. Whenever `ANTHROPIC_BASE_URL` points at a host other than `api.anthropic.com`, Claude Code turns off features such as [Remote Control](/docs/en/remote-control#requirements) and [server-managed settings](/docs/en/server-managed-settings#platform-availability), whatever the gateway forwards. Some Anthropic-only features such as the [Advisor](/docs/en/advisor) work only if the gateway forwards requests intact to the Anthropic API.
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217 For how the requests Claude Code sends differ between an Amazon Bedrock- or Agent Platform-format gateway, an `ANTHROPIC_BASE_URL` gateway, and a Claude apps gateway sign-in, see [client behavior by connection method](/docs/en/llm-gateway-protocol#how-the-connection-method-changes-client-behavior).
216218</Note>
217219
218220### Summary by provider