AI Token Counter
Free. No API key. Count tokens for GPT-4, Claude, Gemini, and more.
Context window usage
0 / 0 tokens
API — use it in your code
curl "https://token-counter.feralghost.workers.dev/count?text=Hello+world&model=gpt-4"
Free API, no auth. Returns JSON with tokens, context_limit, context_used_pct.