2nd November 2024
Tool
Token Counter
— Count tokens in your Claude API requests using this web-based token counter tool. Enter a system prompt and user message, optionally attach images or PDF documents, and receive detailed token usage information for billing and optimization purposes. The tool securely stores your API key locally and communicates directly with the Anthropic API to provide accurate token counts for your exact message content.
Recent articles
- Highlights from my conversation about agentic engineering on Lenny's Podcast - 2nd April 2026
- Mr. Chatterbox is a (weak) Victorian-era ethically trained model you can run on your own computer - 30th March 2026
- Vibe coding SwiftUI apps is a lot of fun - 27th March 2026