Agent Spend Firewall

Hard caps and real-time circuit breakers for every AI agent tool call and dollar

Problem

As AI agents automatically call paid APIs, external tools, and payment endpoints, developers fear runaway spend and unauthorized actions. Existing options cover model tokens or catch overruns after the fact.

Solution

A lightweight proxy layer that routes agent tool calls and API requests through a firewall, enforcing budgets, call limits, allowlists, and approval rules in real time, with logs and a spend dashboard.

Users

Indie developers and small teams building automated AI agents

MVP

Local proxy for tool calls; budget and call-count caps; sensitive-operation allowlist; circuit breaker and alerts; simple log dashboard

Revenue

Open-core with a hosted usage-based subscription or per-seat team plan

Why now

Agents are beginning to spend money and call external services autonomously, yet budget governance remains enterprise-only; indies can win with a lightweight layer