Free quantitative engineering and AI FinOps calculator suite featuring real-time LLM API token pricing models (GPT-5, Claude, DeepSeek), cloud egress estimators, CIDR subnet matrices, and creator economy RPM benchmarks with native /llms.txt.
Promptconduit
Open-source CLI that tracks token usage, cost, prompts, and tool calls for Claude Code, Cursor, Gemini CLI, Codex
Open-source CLI that tracks token usage, cost, prompts, and tool calls for Claude Code, Cursor, Gemini CLI, Codex, Copilot, and Grok Build. Local-first: events land in a JSONL file you can read. Discovered via GitHub AI-Tools topic and indexed in AgentIndex.