databutler.dev · /facts — every fact · Verified Facts protocol · /.well-known/facts.json · /changes

CPI-U annual average 2021 (all items, U.S. city average, 1982-84=100)

270.97 index, 1982-84=100

2021, from 2022-01-12 · verified 2026-10-31 against the official source

CUUR0000SA0 2021 M13 (Annual) 270.970
key
us/cpi-u/annual-average-2021
value
270.97 index, 1982-84=100
period
2021
effective
2022-01-12 to date
source
https://data.bls.gov/timeseries/CUUR0000SA0
verified
2026-10-31 — fresh (6 days ago; next check by 2026-11-10)
next expected change
none named (irregular: changed by statute or order on no fixed date)
source checked
2026-11-02 (the newest day the automated check fetched the source page)
scope
United States, U.S. city average; CPI-U all items, not seasonally adjusted, 1982-84=100 (BLS series CUUR0000SA0)
hash
sha256:397987bf91c4972193ae35fb94ee227460132822a4497984300d8c3907b2bfa8
signature
EdDSA, key db-2026-10 — keys

As JSON

curl -s https://databutler.dev/f/us/cpi-u/annual-average-2021?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/us/cpi-u/annual-average-2021

{
  "protocol": "verified-facts/0.3",
  "key": "us/cpi-u/annual-average-2021",
  "label": "CPI-U annual average 2021 (all items, U.S. city average, 1982-84=100)",
  "value": 270.97,
  "unit": "index, 1982-84=100",
  "period": "2021",
  "effectiveFrom": "2022-01-12",
  "effectiveTo": null,
  "source": "https://data.bls.gov/timeseries/CUUR0000SA0",
  "quote": "CUUR0000SA0 2021 M13 (Annual) 270.970",
  "verifiedDate": "2026-10-31",
  "nextScheduledRefresh": "2026-11-10",
  "changeCadence": "irregular",
  "nextExpectedChange": null,
  "sourceCheckedAt": "2026-11-02",
  "status": "fresh",
  "ageDays": 6,
  "maxAgeDays": null,
  "scope": "United States, U.S. city average; CPI-U all items, not seasonally adjusted, 1982-84=100 (BLS series CUUR0000SA0)",
  "hash": "sha256:397987bf91c4972193ae35fb94ee227460132822a4497984300d8c3907b2bfa8",
  "signature": {
    "alg": "EdDSA",
    "kid": "db-2026-10",
    "jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..czCQuIwxl6S_Y7RPKAeX98dXI3zLvZp4C8JfIU8BapanIt4L-y4xRbxLh_tcgZw-B9_KxC2NNQ9lm5YdIl04Bg",
    "keys": "https://databutler.dev/.well-known/jwks.json"
  },
  "publisher": {
    "name": "Data Butler",
    "url": "https://databutler.dev/"
  },
  "cite": {
    "url": "https://databutler.dev/facts/us/cpi-u/annual-average-2021",
    "text": "databutler.dev, verified 2026-10-31 against https://data.bls.gov/timeseries/CUUR0000SA0"
  }
}