Use GPT Tokenizer with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Keep your complex workflows running without hitting API limits.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 1 capability
The complete GPT Tokenizer capability set.
These are the exact actions your AI can choose when you ask it to work with GPT Tokenizer.
01
1 capability in this set.
Part of 1 available through GPT Tokenizer.
- 01
Count tokens
Pass the raw text and receive the exact token count. Use the result to decide whether to chunk, summarize, or send directly. Counts exact LLM tokens (cl100k_base) offline. Prevents RAG agents from exceeding context windows and crashing
Observed, not estimated
1735ms average. Fast in production.
GPT Tokenizer is checked daily against the live service.
- Fastest day
- 1464ms
- Slowest day
- 1974ms
- 14-day trend
- Stable+1%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of GPT Tokenizer, so you can see the experience inside your AI.
It does not authenticate your account with GPT Tokenizer. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
GPT Tokenizer Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_3TlaUrJfXkjzPylHQtgw7qX3SzCKmj8umGecyFc1/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — GPT Tokenizer capabilities are ready to use.
{
"mcpServers": {
"ai-token-counter-mcp": {
"url": "https://edge.vinkius.com/vk_preview_3TlaUrJfXkjzPylHQtgw7qX3SzCKmj8umGecyFc1/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
Who it's for
Built for the work GPT Tokenizer owners hand off.
This MCP is built for developers and prompt engineers who build complex, multi-step AI agents. If your workflow involves summarizing large documents, processing extensive data sets, or building Retrieval Augmented Generation (RAG) pipelines, you need this capability. It gives your agent the necessary math to handle real-world data limits.
- 01
AI Developer
Builds agents that must reliably process inputs of unknown size, preventing runtime API failures.
- 02
Prompt Engineer
Designs prompts that handle massive amounts of context, ensuring the prompt doesn't exceed the model's limit.
- 03
Data Scientist
Needs to pre-process and chunk large data sources before feeding them into an LLM for analysis.
FAQ
Questions GPT Tokenizer owners ask.
- 01
Does this count the tokens for all LLMs?
No, it uses the specific cl100k_base encoding algorithm. This ensures the count matches the tokenization method used by the target LLM API, making the count accurate for your workflow.
- 02
Is this better than just guessing the token count?
Yes. Guessing is unreliable. This MCP provides a precise, local count of the raw text, giving your agent the mathematical certainty it needs to avoid unexpected API failures.
- 03
Can my agent use this to save money?
Absolutely. By knowing the exact token count, your agent can optimize its prompts and chunking strategy, preventing unnecessary API calls and keeping your costs down.
- 04
What kind of data can I feed into the token counter?
You can feed it any raw text, including JSON data, articles, transcripts, or any large block of text your agent needs to analyze.
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