Endpoint · computePOSTapi.hergertsynthora.com /v1/exchange-rates-verified
SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate…
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SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate open.er-api.com) with per-currency deviation in bps and divergence alert >50 bps. The product is the discrepancy: a bad rate breaks a financial agent. Free sources, no key. $0.005 USDC x402 Base.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.03 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.hergertsynthora.com/v1/exchange-rates-verified
Seen
first 34 days ago · last 13 hr ago
65 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.850 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 0.150: 0.086 uncertain ? + 0.064 short ? · 0.050 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.68 | 0.561 | 0.112 | −0.064 | −0.024 | |
| liveness it answered at all |
0.60 | 1.00 | 0.896 | 0.537 | 0 | −0.063 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.850 | gap to 1.000 = 0.150 · 0.064 short · 0.086 uncertain | 0.850 | −0.064 | −0.086 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.561 latency p95
+ 0.600 × 0.896 liveness
+ 0.200 × 1.000 price stability
= 0.850 → UNRATED: 59 of 30 paid calls weights 2026.09.6 · 59 samples · seed cap_01M1A59PMAEHGW7E6DK7X2GTX7|2026-09-02T07:58:55.710Z|2026.09.6
Verify it yourself
npx teppi-check https://api.hergertsynthora.com/v1/exchange-rates-verifiedcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59PMAEHGW7E6DK7X2GTX7