smcllns Token count
Call all three server-side count endpoints (no inference, free), then return a structured result.
- Anthropic —
POST https://api.anthropic.com/v1/messages/count_tokens(x-api-key) - Gemini —
POST https://generativelanguage.googleapis.com/v1beta/models/{model}:countTokens(API key) - OpenAI —
POST https://api.openai.com/v1/responses/input_tokens(Bearer)
Tokenizer is vendor-fixed; model only selects family. Use any current model per vendor (e.g. claude-sonnet-4-6, gemini-2.5-flash, gpt-5).
Output
Return a JSON object:
{
"counts": { "anthropic": 1234, "gemini": 1200, "openai": 1300 },
"range": "1,200–1,300 tokens"
}
range— smallest–largest, comma-formatted, suffixedtokens