Observed arrival · 2026-09-16
Errata — defects in published API descriptions
A machine-readable catalog of defects found in public API descriptions, from dead hosts to authentication contradictions.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The catalog organizes API-quality failures into question-driven views and subject pages rather than presenting a general documentation index. Its machine-readable surface includes a small manifest and an errata.json file, while the visible records cover both conventional APIs and MCP registry entries. The homepage says each defect has a reproducible check that can be run in a single request, making the collection useful for auditing rather than merely reporting broken links.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue