---
title: "Fortitude21 (@fortitude21)"
description: "Fortitude21: API listing imported from its public OpenAPI spec."
account: "fortitude21"
---

# Fortitude21

Fortitude21: 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/fortitude21/feed.md

- [Fortitude21 dangerous goods and packaging API](https://skmtc.dev/fortitude21/apis/fortitude21-dangerous-goods-and-packaging-api.md): Dangerous goods: look up permitted UN packaging, decode UN marks, and check IBC test dates and ADR small-load points