---
title: "X402toll (@x402toll)"
description: "X402toll: API listing imported from its public OpenAPI spec."
account: "x402toll"
---

# X402toll

X402toll: API listing imported from its public OpenAPI spec.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/x402toll/feed.md

- [Tollbooth — verified calculators for AI agents](https://skmtc.dev/x402toll/apis/tollbooth-verified-calculators-for-ai-agents.md): Finance and tax: calculate paychecks, mortgages, 401(k) limits, LLC costs, crypto tax lots and rental returns