JSPM

Fast and lightweight token estimation for any LLM without requiring a full tokenizer

Calculate the token consumption and amount of openai gpt message

Universal LLM context manager supporting 14+ languages with method-level filtering, token optimization, and GitIngest format support

A service for calculating, managing, truncating openai prompt tokens

Anthropic/AWS Bedrock Typescript SDK.

#### Description I needed the SentenceSplitter from llamaindex but had to import the entire llamaindex package which is 1GB. I pulled it out and had GPT make a standalone version. It's not exactly the same but close.

🚀 CLI tool to analyze projects, concatenate source files, count tokens, and export HTML with syntax highlighting and copy functionality

Weigh your code in tokens - calculate AI API costs for your codebase

UltraToken Utility - CLI tool for token cost analysis

A simple CLI tool to count tokens in files or clipboard content using tiktoken

CLI tool to process PDFs and create local vector databases using ChromaDB

GPT token estimation and context size utilities without a full tokenizer

Use web-only models (e.g., GPT-5 Pro) with your local codebase: scan, pack to token limits, and copy a paste-ready bundle.

A javascript library designed to estimate AI models tokens and its API costs.

High-level binding to tiktoken-rs for Node.js and browsers

tiktoken for nest.js

Model Context Protocol（MCP）服务器专为LLMs与Obsidian vaults进行交互而设计。通过标准化接口提供安全、token感知的工具，实现无缝知识库管理。

High-level binding to tiktoken-rs for Node.js and browsers

High-level binding to tiktoken-rs for Node.js and browsers

Fast tokenizer.

High-level binding to tiktoken-rs for Node.js and browsers

offline-capable ESM module for cl100k_base tokenization in the browser

High-level binding to tiktoken-rs for Node.js and browsers

Model Context Protocol (MCP) server designed for LLMs to interact with Obsidian vaults. Provides secure, token-aware tools for seamless knowledge base management through a standardized interface.

Pure JavaScript version of OpenAI tiktoken