Booko website screenshot

Booko

Booko is an Australian book, eBook, audiobook, DVD, music and collectibles price-comparison service operating since 2007. It aggregates new and used prices across many online retailers and regions, calculates shipping, and converts international prices to the shopper's local currency to surface the cheapest place to buy a title. Booko also offers shopping lists with bundled shipping calculations, barcode scanning, reading lists, price alerts and notifications. It is a consumer-facing comparison site rather than a retailer or a public API provider, earning referral fees from partner shops (including Amazon Associates) when shoppers buy through its links. Booko is a solo developer-run product surfaced through the API Evangelist network as a Y Combinator portfolio company.

Booko is profiled on the APIs.io network. Tagged areas include Company, Books, Price Comparison, Ecommerce, and Retail.

Booko’s developer surface includes engineering blog, support, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
13.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyBooksPrice ComparisonEcommerceRetailShoppingMediaAustralia

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 13.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/booko: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Booko Domain Security

TLSv1.3

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 4

The organization behind the API

Website
Website
 About
About
 Blog
Blog
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: booko
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/booko.png
name: Booko
description: Booko is an Australian book, eBook, audiobook, DVD, music and collectibles price-comparison service operating
  since 2007. It aggregates new and used prices across many online retailers and regions, calculates shipping, and converts
  international prices to the shopper's local currency to surface the cheapest place to buy a title. Booko also offers shopping
  lists with bundled shipping calculations, barcode scanning, reading lists, price alerts and notifications. It is a consumer-facing
  comparison site rather than a retailer or a public API provider, earning referral fees from partner shops (including Amazon
  Associates) when shoppers buy through its links. Booko is a solo developer-run product surfaced through the API Evangelist
  network as a Y Combinator portfolio company.
url: https://raw.githubusercontent.com/api-evangelist/booko/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Books
- Price Comparison
- Ecommerce
- Retail
- Shopping
- Media
- Australia
apis: []
common:
- type: DomainSecurity
  url: security/booko-domain-security.yml
- type: Website
  url: https://booko.com.au/
- type: About
  url: https://booko.com.au/about
- type: Blog
  url: https://blog.booko.com.au/
- type: Blog
  name: Booko Tech Blog
  url: https://tech.booko.info/
- type: GitHubOrganization
  url: https://github.com/dkam
- type: Support
  name: FAQ
  url: https://booko.com.au/faq
- type: TermsOfService
  url: https://booko.com.au/tos
- type: PrivacyPolicy
  url: https://booko.com.au/privacy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence