Free downloads. Complete transparency. All calculations and sources included.
Complete Excel files with all calculations, formulas, and source citations. 100,000+ words of methodology documentation. Every assumption documented, every calculation explained. Download, verify, and use freely.
Programmatic access to Deflation Index data. RESTful API with JSON responses, historical data, and real-time updates when new data is published.
Premium data feeds for financial institutions, research firms, and enterprise customers. Custom integrations, priority support, and early access to new sectors.
Bespoke research and analysis for organizations that need custom sector coverage, alternative weightings, or specialized metrics.
Here's what the Deflation Index API will look like when it launches in 2026:
GET /api/v1/index/latest
{
"date": "2024-12-31",
"di_value": 3.74,
"di_cumulative_deflation": -96.26,
"di_annual_rate": -9.21,
"m2_index": 650.2,
"m2_annual_rate": 5.7,
"gap_annual_pp": 14.9,
"sectors": {
"computing": { "value": 0.09, "weight": 29.41 },
"communications": { "value": 0.20, "weight": 23.53 },
"energy": { "value": 10.00, "weight": 29.41 },
"transportation": { "value": 12.00, "weight": 17.65 }
}
}
/api/v1/index/latest — Current DI values/api/v1/index/historical — Full 1990-2024 time series/api/v1/sectors/{sector} — Individual sector data/api/v1/weights — Current weighting methodology and equal-weighted baseline/api/v1/gap — DI-M2 gap analysisWant early access? Email [email protected] with your use case.