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Do you need a spend firewall for AI agents?

A decision checklist: if your agent can move money, calls external paid APIs/x402, or runs unattended, prompt limits and token caps are not enough.

See the full comparison: How to control AI agent spending — 5 approaches compared →

sipi.bot enforces your rules before every agent payment (APPROVED / BLOCKED / FLAGGED). Get started →

This guide compares general approaches to controlling autonomous-agent spending as of 2026. Every team's needs differ; evaluate against your own stack and risk tolerance.