The problem
Before you ship a long system prompt or dump a chat transcript into an agent, it’s hard to answer: “What does this cost per call?”
What I built
A free tool: paste prompt / transcript → estimated tokens + USD against official model list prices.
👉 https://tools.aicostgate.com/prompt-cost
No signup. Built for people running Cursor / Claude Code / custom agents who care about token spend.
How I use it
- Paste the system + user prompt you actually send
- Pick the model
- Sanity-check before wiring it into a loop
Related free tools
- Pricing leaderboard: https://tools.aicostgate.com/prices
- Monthly agent burn estimator: https://tools.aicostgate.com/burn
- Budget-aware MCP / Cursor templates: https://tools.aicostgate.com/mcp
Feedback welcome — especially on tokenizer approximations vs real provider billing.
Top comments (0)