x402 census · api.tickersfeed.net · 5e1c050a7250 · JSON
GET /econ/inflation
live
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 via FRED (Federal Reserve). Use for: purchasing power comparison, real vs nominal value, historical price adjustment, cost-of-living calculation. $0.003 USDC …
Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://api.tickersfeed.net/econ/inflation |
| Method | GET |
| Price | $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xE82EBef57Fa5aF958B8ECB6843D4327d314F59E3 |
| Seller | api.tickersfeed.net |
| Catalogs | cdp (row updated 2026-09-25) |
| Listed since (lower bound) | 2026-09-25 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-25 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-25 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | TickersFeed · inflation, cpi, macro, economics, fred |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
Latest re-probe
| Field | Value |
|---|---|
| Re-probed at | 2026-10-01T17:13:42.000Z (cron) |
| Verdict now | live changed from unprobed |
| HEAD / GET | 404 / 402 |
| accepts[0] | {"scheme":"exact","network":"base","amount":"3000","payTo":"0xE82EBef57Fa5aF958B8ECB6843D4327d314F59E3","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Latency | 787 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 96 |
| Payments | 318 |
| USDC volume | $1.59 |
| Median payment | $0.003 |
| First / last payment | 2026-06-16 / 2026-09-27 |
| Sampler-shaped share of payments | 99.7% |
| Payers that are not samplers | 1 |
| Source | forensics-2026-09-30 |
| Address | 0xE82EBef57Fa5aF958B8ECB6843D4327d314F59E3 (contract: EIP7702StatelessDeleGator) |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"amount": 100,
"from": "2010",
"to": "2026"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"amount_adjusted": 152.9,
"amount_in": 100,
"cumulative_inflation_pct": 52.9,
"from": "2010-01-01",
"to": "2026-06-01"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://api.tickersfeed.net/econ/inflation' -H 'accept: application/json'
The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/5e1c050a7250/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"5e1c050a7250"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.tickersfeed.net.