Count tokens exactly for any text and see if it fits a 128K, 200K or 1M context window.
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First seen 2 Nov 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| tokendiet_count_tokens | Use when the user asks how many tokens a text, prompt, log, document or code paste is, whether it fits a context window (128K, 200K, 1M), or how big something is before they send it to an AI. Returns the exact o200k token count (GPT-4o family and later; Claude and Gemini usually within about 15%), plus words, characters and how much of each window it uses. Language models cannot count their own tokens, so call this instead of estimating. Example: {"text": "<the text to measure>"}. Not for shortening text. | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | Token Diet | - | 2 Nov 2026 |