Observed arrival · 2026-09-01
ChangeGraph API turns diffs into evidence-backed events
A change-detection API that accepts successive observations from your own data sources and returns typed events describing what materially changed.
Field notes
The service accepts repeated observations of a monitored entity and converts material differences into structured records rather than raw page diffs. The homepage describes retained evidence and a reproducible confidence score, and lists an OpenAPI specification alongside Python, TypeScript, and Postman integrations. Its example tracks three concrete fields for Acme Corp—plan pricing, engineering headcount, and the CTO—illustrating the sort of change the API is designed to preserve.
Observed signals
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