Methodology / DB policyUpdated 2026/09/09

Methodology

Public APIsUse-case fitAd separationAI-readable

Evaluation Rules

Public data first

Official APIs / official URLs / fetched dates

No scraping dependency

Field-level verification

Pricing expires after 30 days; overview/features after 90

Official source, date and exact field value. Separate from API sync and URL reachability

Listing price changes

Comparison with the previous listing text

No listing change does not prove official price stability

Use-case fit

Support / automation / RAG / dev tools

Name order; no review aggregate

Ads separated

affiliate_click / sponsored rel

No affiliate score boost

Regression gates

build / data contract / sitemap / llms

No article structure comeback

Updates and quality checks

1ResearchButterfree / GitHub 120+ / HF 180+ / PH 30+
2ExecuteCodex / Arceus / Fix UI, routes, and data conflicts
3AnalyzeScorecard / GSC + GA4 events
4ReflectArceus / contract / llms / sitemap / redirects

Ads / Partners

Chatbase / MakePR labelsRanking separatedEvent tracking

Limits

Popularity is not adoption successPricing changesSupport variesPH commercial reuse needs permission