AI tokens usage monitoring and estimation

It’s important for the user to monitor and track their AI generation costs, and it should be greater if it can estimate cost of the next generation
It should have
1. Tokens usage for each generation (input/output and thinking tokens)
2. Current context window usage, such as tokens of current input, total tokens of all previous messages, system-prompt, MCP and Toolings

And it would be awesome if it had a dashboard for generation logs.