The failure mode
Autonomous coding agents don’t respect your mental budget. By the time the provider dashboard updates, the loop may already have burned the week.
What “good” looks like
- Attribution — every call labeled with project / agent / model
- Near-real-time visibility — burn rate in hours, not billing cycles
- Hard limits — budgets that can stop further spend, not only alert
- Data posture — prompt bodies don’t need to leave your network for metering
What we shipped
AI Cost Gate — local-first, OpenAI-compatible cost black box:
- attribute spend
- enforce budgets (including HTTP 429 auto-stop)
- self-host via one-time Pro source license
→ https://www.aicostgate.com?utm_source=devto&utm_medium=article&utm_campaign=acg-pro
Free companions
While building Gate we published free tools many teams use first:
- https://tools.aicostgate.com/burn
- https://tools.aicostgate.com/prices
- https://tools.aicostgate.com/prompt-cost
- https://tools.aicostgate.com/mcp
- https://tools.aicostgate.com/checklist
Open questions for readers
Would you enable hard-stop in observe-only mode for two weeks first? What break-glass pattern do you want when a budget trips mid-incident?
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