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TickersFeed

US inflation calculator — cumulative CPI inflation between any two years, e.g. what $100 in 1990 is worth today (?from=1990&to=2026&amount=100). Returns cumulative inflation % and the inflation-adjusted value as JSON, from official CPI data

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
281 ms
Price
$0.003 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
3
Category
Economic data (macro)
Address
https://api.tickersfeed.net/econ/inflation

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/5e1c050a7250.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].