Endpoint · computePOSTagent-vending-production.up.railway.app /v1/us-demographics
Query U.S.
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Query U.S. demographic, economic, education, labor, housing, and population statistics by geography. Returns normalized Census ACS estimates with margins of error, comparisons, trends, methodology, and source metadata as structured JSON. Not endorsed by the Census Bureau.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://agent-vending-production.up.railway.app/v1/us-demographics
Seen
first 10 days ago · last 15 hr ago
17 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.542 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.458: 0.255 uncertain ? + 0.203 short ? · 0.108 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.590 | 0.354 | 0 | −0.246 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 0.99 | 0.937 | 0.187 | −0.003 | −0.010 | |
| Composite | 1.00 | 0.542 | gap to 1.000 = 0.458 · 0.203 short · 0.255 uncertain | 0.542 | −0.203 | −0.255 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.590 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 0.937 price stability
= 0.542 → UNRATED: 15 of 30 paid calls weights 2026.09.6 · 15 samples · seed cap_01M38Z42R33WZEQY0XT0T4J6QM|2026-09-02T21:05:17.315Z|2026.09.6
Verify it yourself
npx teppi-check https://agent-vending-production.up.railway.app/v1/us-demographicscurl -s https://api.teppi.xyz/v1/trust/cap_01M38Z42R33WZEQY0XT0T4J6QM