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AgentTools

Estimate how many tokens a text consumes for each major model family (GPT, Claude, Gemini, Llama, DeepSeek) using a character/word heuristic that is within ~10% of real BPE tokenizers — enough for context budgeting and cost math, with zero

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Our latest check (2026-10-12)

Answering
Yes — valid x402 payment terms
Time to answer
125 ms
Price
$0.002 per call
Paying buyers, last 30 days
2 (directory's own records)
Paid calls, last 30 days
2
Category
AI model answers
Address
https://agentstoolshub.com/api/v1/dev/token-estimator

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/dfcffb803943.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

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