https://2s.io/api/econ/fred-vintageGET /api/econ/fred-vintage · x402 API by 2s.io
Point-in-time (vintage) economic data from FRED's ALFRED archive — what an economic figure was AS FIRST REPORTED / as known on a past date, before later revisions. Give a seriesId (e.g. GDP, GDPC1, PAYEMS, INDPRO) and an asOf date to get the observations exactly as they stood on that date; omit asOf to get the current (latest-revised) values. Also returns the series' vintage (revision) dates — every date the series was revised. Free, public-domain (FRED). Critical for honest backtesting and macro research: it eliminates look-ahead bias (e.g. GDP for 2020Q1 was first reported far lower than today's revised figure). No LLM and no real-time API gives this — it's the archived state of the data through time. Pair with econ.fred (current series) and econ.fred-releases (release calendar).
What does this x402 API do?
https://2s.io/api/econ/fred-vintage. This is an x402-gated GET API resource from 2s.io. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21. No normalized USD price is recorded; the listing names Base and Solana. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base · Solana
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21
- Resource ID
- ae7e6d4e8ecbab4a01db066c
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://2s.io/api/econ/fred-vintage", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://2s.io/ returned 200.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.