Olympus turns U.S. government data — Census demographics, public school directories, SEC filings and financials — into focused APIs. Every value says where it came from, which release it belongs to and when it changed.
Free plan: 1,000 requests per product per month. No card required.
curl -s "https://api.olympus.new-odyssey.com/v1/sec/companies/320193/financials?metric=revenue&period=annual&fiscal_year_from=2024&fiscal_year_to=2024" \
-H "X-API-Key: $OLYMPUS_API_KEY"{
"data": {
"cik": "0000320193",
"name": "Apple Inc.",
"period_type": "annual",
"fiscal_year_from": 2024,
"fiscal_year_to": 2024,
"series": [
{
"metric": "revenue",
"unit": "USD",
"values": [
{
"metric": "revenue",
"fiscal_year": 2024,
"fiscal_period": "FY",
"period_start": "2023-10-01",
"period_end": "2024-09-28",
"value": 391035000000,
"unit": "USD",
"is_ytd": false,
"concept": "RevenueFromContractWithCustomerExcludingAssessedTax",
"form": "10-K",
"filed_date": "2024-11-01",
"accession_number": "0000320193-24-000123",
"evidence_url": "https://www.sec.gov/Archives/edgar/data/320193/000032019324000123/0000320193-24-000123-index.htm",
"is_restated": false,
"provenance": {
"dataset_id": "delphi.financial_metrics",
"source_id": "sec.companyfacts_bulk",
"source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000320193.json",
"source_date": "2026-10-16",
"schema_version": "1.0.0",
"validation_status": "passed",
"record_id": "cik:0000320193:revenue:annual:2024-09-28"
}
}
]
}
]
},
"meta": {
"datasets": [
{ "dataset_id": "delphi.financial_metrics", "published_at": "2026-10-17T06:10:00Z", "freshness": "fresh" }
]
}
}Each API covers one domain. We say exactly what is covered and what isn't, so you know what you can build on before you write any code. See the full catalogue, including the APIs we plan to add.
American Community Survey 5-year demographics for ZIP Code Tabulation Areas and counties, nearby NCES public schools, and side-by-side comparison with significance testing.
SEC registrants by CIK or ticker, 10-K and 10-Q filing metadata, and eight standardised XBRL metrics with annual and quarterly history, restatement flags and cross-company comparison.
Government data is authoritative but hard to cite: releases are revised, geographies don't line up and caveats sit in technical documentation. Olympus puts that context into the response.
Responses include a meta.coverage block and notices, e.g. that a ZCTA is not a USPS ZIP code. The coverage page lists every source, vintage and known gap.
Each record carries provenance: the upstream URL, source release, publication time, schema version and validation status. SEC values link to the EDGAR filing they were taken from.
Data is published in validated releases listed in meta.datasets. Records keep their original published_at until they change; restated SEC values are flagged with the first reported figure alongside.
Some things we don't do, so nobody expects them:
404 ZCTA_NOT_FOUND — we don't guess a crosswalk.Sign up, verify your email, create a key in the console and make your first request in a few minutes.