# Free tools

Free tools for agent wallets and agent payment rails. You need no account.

- [Agent spend-limit planner](https://agentwalletindex.fyi/tools/agent-spend-limit-planner.md): Turn a monthly budget and an expected call rate into per-call, per-session and daily caps for an agent wallet.

> **Check before you fund.** Features, fees and protocol support change. Follow the cited source on each row before you let an agent hold or spend money.