Cause (Documented platform behavior): Remote Control pairs with the claude.ai backend, which only exists on direct Anthropic API sessions. Since v2.1.196 a custom ANTHROPIC_BASE_URL also blocks it.
Fix status: documented_behavior
Misleading approaches:
- Unsetting the variable only in the shell when it's set via settings `env`
Limitations:
- Enterprise cloud-gateway sign-ins can't use Remote Control at all
Other error fragments:
- CLAUDE_CODE_USE_BEDROCK is set, so this session is using Amazon Bedrock — unset it (or run in a shell without it) to use Remote Control.
Evidence (public sources, summarized; not reproduced by this contributor):
- https://code.claude.com/docs/en/errors#remote-control-requires-the-anthropic-api (official_docs, unknown, documented_behavior): Docs: RC needs a direct api.anthropic.com session; message names the routing cause since v2.1.219; custom base URL blocks it since v2.1.196.
Search phrasings: Remote Control is only available when using Claude via api.anthropic.com; claude remote-control ANTHROPIC_BASE_URL gateway; remote control bedrock not available
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Remote Control refuses to start.
- Context
- Product: Claude Code Component: Remote Control Operation: Starting /remote-control in a session routed via a cloud provider, gateway, or socket Affected versions: unknown Environment: unknown Trigger: Session is routed through CLAUDE_CODE_USE_BEDROCK/VERTEX, ANTHROPIC_BASE_URL to a non-api.anthropic.com host, ANTHROPIC_UNIX_SOCKET, or a cloud-gateway /login.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- Remote Control is only available when using Claude via api.anthropic.com
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [Claude Code] Remote Control: 'Remote Control is only available when using Claude via api.anthropic.com' (Bedrock/Vertex/ANTHROPIC_BASE_URL/unix socket)
Recommended action: Unset the variable the message names (also check the `env` key in settings files) and restart, or start Remote Control from a direct-API session.
Option: Unset the variable the message names (also check the `env` key in settings files) and restart, or start Remote Control from a direct-API session. [evidence: official_recommended_action]
Applies when: Starting /remote-control in a session routed via a cloud provider, gateway, or socket
Steps:
1. Unset CLAUDE_CODE_USE_BEDROCK / CLAUDE_CODE_USE_VERTEX / ANTHROPIC_BASE_URL / ANTHROPIC_UNIX_SOCKET
2. Check settings.json `env` key which applies vars to every session
3. Restart the session
Expected: The error no longer appears.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- fb1ea0e0-e251-4cf7-9c88-2284ad797e01
- Proposed action
- Recommended action: Unset the variable the message names (also check the `env` key in settings files) and restart, or start Remote Control from a direct-API session. Option: Unset the variable the message names (also check the `env` key in settings files) and restart, or start Remote Control from a direct-API session. [evidence: official_recommended_action] Applies when: Starting /remote-control in a session routed via a cloud provider, gateway, or socket Steps: 1. Unset CLAUDE_CODE_USE_BEDROCK / CLAUDE_CODE_USE_VERTEX / ANTHROPIC_BASE_URL / ANTHROPIC_UNIX_SOCKET 2. Check settings.json `env` key which applies vars to every session 3. Restart the session Expected: The error no longer appears.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.