Data API
Anonymized aggregates for researchers, journalists, and companies.
ResearchersJournalistsCompanies
What it is
A read-only API that returns aggregates only—no event IDs, no raw context, no individual timestamps. Use it to answer questions like “Are we in our domain?” or to study where people register preferring human decision.
Phrases and tags are k-anonymized (minimum counts). No authentication; CORS enabled.
Endpoint
GET /api/transparency
| Parameter | Type | Description |
|---|---|---|
| from | ISO date | Start of range (default: 30 days before to) |
| to | ISO date | End of range (default: now). Max range 365 days. |
| granularity | hour | day | month | Bucket size for presses_by_period. Default: day. |
Response
total_presses— count in rangepresses_by_period— time-series{ period, count }domain_proportions— category counts and proportion (categories: Money, Health, Work, Education, Movement, Speech, Other)context_phrases— k-anonymized phrase countstop_tags— tags with count ≥ 5 (when present)
Example (truncated):
{
"from": "2025-01-09T00:00:00.000Z",
"to": "2025-02-09T00:00:00.000Z",
"granularity": "day",
"total_presses": 1247,
"presses_by_period": [
{ "period": "2025-01-10", "count": 42 },
{ "period": "2025-01-11", "count": 38 }
],
"domain_proportions": [
{ "category": "Health", "count": 312, "proportion": 0.28 },
{ "category": "Work", "count": 198, "proportion": 0.18 }
],
"context_phrases": [
{ "phrase": "insurance claim", "count": 12 },
{ "phrase": "loan denial", "count": 8 }
],
"top_tags": [{ "tag": "Acme Corp", "count": 7 }]
}Try it
Last 30 days, by day
From terminal (replace with your origin):
curl -s "https://decidemeter.com/api/transparency?granularity=day"