Book Notes: Hacking APIs

Hacking APIs by Corey Ball is a recurring recommendation on web security reading lists. This SapiensHack Book Notes card is our take on where it fits—not a reprint of the book.

Focus: API recon, authz flaws, and testing workflows. Level: Intermediate.

API-first apps need object-level authz thinking; this is a strong shelf pick next to our API Hacking notes.

Who it’s for

Authorized pentesters, bug bounty hunters, AppSec engineers, and builders who want depth beyond blog posts.

• Prefer labs and written scope when practicing anything offensive from any book

• Pair reading with note templates and one real (legal) target at a time

• Treat older editions as methodology gold; confirm tooling chapters against today’s stack

Where to get it

• Publisher page: https://nostarch.com/hacking-apis

• Amazon (global): https://www.amazon.com/dp/1718502443

• Amazon.in: https://www.amazon.in/s?k=Hacking+APIs+Corey+Ball

• Flipkart search: https://www.flipkart.com/search?q=Hacking+APIs+Corey+Ball

• Prices and stock change—verify the edition and seller before you buy.

How we use it on engagements

Skim for the chapter that matches your current test phase (recon, auth, access control, client-side).

Translate ideas into checklist items and evidence habits—not into unauthorized experiments.

Cite the book’s concepts in reports only when they help the developer fix the issue faster.

Catalog inspiration: https://github.com/infoslack/awesome-web-hacking (Books section). We write our own guidance; buy or borrow from the links above. SapiensHack covers authorized testing only.

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Worth reading next

• Web Hacking Books Desk

• Start Here: SapiensHack Learning Path

• Bug Bounty Tools Directory