Claude Code does not have to mean a fixed monthly plan. Point it at an API key with prepaid balance and you pay per token — ideal if your usage is spiky or you just want to try it.
Two environment variables
export ANTHROPIC_BASE_URL=https://api.apitoken.sale
export ANTHROPIC_API_KEY=sk-pool-•••
# then just run
claude
That is the entire change. Claude Code keeps every feature — it simply bills against your prepaid balance at a discount instead of a subscription.
When pay-as-you-go wins
- Occasional or bursty usage where a flat monthly fee is wasteful.
- Trying Claude Code before committing to a plan.
- Keeping several tools on one balance and one key.
Frequently asked questions
Does Claude Code work with a custom API key?
Yes. Set ANTHROPIC_BASE_URL and ANTHROPIC_API_KEY and Claude Code uses your key and balance directly.
Do I lose any features?
No. Claude Code behaves identically; only billing changes from a subscription to prepaid per-token usage.
Get a key: https://apitoken.sale/register
More guides: https://apitoken.sale/docs/learn
Originally published at apitoken.sale.
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