Endpoint · market dataPOSTapi.vextorium.com /v1/us-treasury-fx-rates
Official US Treasury reporting rates of exchange (quarterly) for about 170 currencies against the US dollar, including many the ECB does not publish (Argentine peso, naira…
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Official US Treasury reporting rates of exchange (quarterly) for about 170 currencies against the US dollar, including many the ECB does not publish (Argentine peso, naira, bolivar...), with history per country.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.vextorium.com/v1/us-treasury-fx-rates
MCP server on this host: com.vextorium.api/vextorium
Seen
first 16 hr ago · last 16 hr ago
1 free handshakes
Payment
Pays through
x402
Offered on?
eip155:10, Arc, Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.250 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 0.750: 0.750 uncertain ? + 0.000 short ? · 0.200 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.75 | 1.00 | 0.000 | 0.000 | 0 | −0.750 | |
| latency p95 it answered as fast as its class |
0.25 | 1.00 | 1.000 | 0.250 | 0 | 0 | |
| Composite | 1.00 | 0.250 | gap to 1.000 = 0.750 · 0.000 short · 0.750 uncertain | 0.250 | −0.000 | −0.750 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check; price stability · nothing to score
The multiplication, written out
0.750 × 0.000 liveness
+ 0.250 × 1.000 latency p95
= 0.250 → UNRATED: 1 of 30 paid calls weights 2026.09.6 · 1 samples · seed cap_01M42Q5M799H9E2VQFNHNFVM8J|2026-09-04T06:39:21.903Z|2026.09.6
Verify it yourself
npx teppi-check https://api.vextorium.com/v1/us-treasury-fx-ratescurl -s https://api.teppi.xyz/v1/trust/cap_01M42Q5M799H9E2VQFNHNFVM8J