ylynbuilds

AI Cost Gate is a local-first cost black box for AI agents. • OpenAI-compatible request path • Attribute spend by project / agent / model • Budgets that can return HTTP 429 so agents stop when spend trips • Metadata-oriented — designed so prompt bodies stay on your side • Pro = one-time source license, self-host on SQLite or Postgres Free companion tools (pricing, burn estimator, prompt cost, MCP templates, checklist): https://tools.aicostgate.com

Five free, shareable tools for LLM cost: • Pricing leaderboard — official list prices, sortable • Agent burn estimator — monthly spend + runaway peak • Prompt cost calculator — paste → $ • Budget-aware MCP / Cursor templates — copy-paste • Cost runaway checklist — 12 warning signals No signup. Built for developers running AI coding agents.