# API testing techniques, including fuzz, penetration, and injection attack testing

DevFeed: [API testing techniques, including fuzz, penetration, and injection attack testing](<https://devfeed.tech/articles/api-testing-was-hard-until-i-learned-these-53-techniques-17925.md>)

Original publisher: [Read original article](<https://newsletter.systemdesign.one/p/types-of-api-testing>)

Author: Neo Kim

Published: 2026-09-07T16:59:35Z

Content type: article

Language: en

Sources: [System Design Newsletter](<https://devfeed.tech/sources/system-design-newsletter.md>)

Topics: [API](<https://devfeed.tech/topics/api.md>), [Testing](<https://devfeed.tech/topics/testing.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [api-testing](<https://devfeed.tech/tags/api-testing.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

Part 2 covers API testing techniques, including fuzz testing, penetration testing, injection attack testing, and 25 other techniques.

## Source excerpt

#175: Part 2 - fuzz testing, penetration testing, injection attack testing, and 25 others.