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3 min read

Run Claude Code without an Anthropic account

SeaLink's Anthropic-compatible endpoint lets Claude Code run with a SeaLink key — no Anthropic signup, no US card needed.

Qwen3 MaxQwen3.6 35B-A3B

Why this matters in SEA

Anthropic doesn't directly serve many SEA countries, and signups often fail at phone or card verification. SeaLink gives you an Anthropic-compatible endpoint with SeaLink billing and support.

Set the env vars

Claude Code reads ANTHROPIC_BASE_URL and ANTHROPIC_API_KEY. Point both at SeaLink.

shell
export ANTHROPIC_BASE_URL="https://api.sealink.io/anthropic/v1"
export ANTHROPIC_API_KEY="<your-sealink-key>"


# now run Claude Code as usual
claude

Pick a model

Inside Claude Code, /model qwen3-max (default for everyday work) or /model qwen3.6-35b-a3b (fast iteration).

Done

SeaLink bills your balance, keeps monthly billing records for Builder plans and above, and surfaces usage in the dashboard.

Next steps