Endpoint · otherGETapi-macro-br-production.up.railway.app /v1/ptax
Official PTAX USD/BRL exchange rate, buy and sell.
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.005 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api-macro-br-production.up.railway.app/v1/ptax
Seen
first 29 days ago · last 3 days ago
54 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.699 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.301: 0.058 uncertain ? + 0.243 short ? · 0.101 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| liveness it answered at all |
0.60 | 0.93 | 0.832 | 0.499 | −0.043 | −0.058 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.699 | gap to 1.000 = 0.301 · 0.243 short · 0.058 uncertain | 0.699 | −0.243 | −0.058 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.000 latency p95
+ 0.600 × 0.832 liveness
+ 0.200 × 1.000 price stability
= 0.699 → UNRATED: 53 of 30 paid calls weights 2026.09.6 · 53 samples · seed cap_01M1RDA2DAKDMTRWRPDP3PVHXY|2026-09-03T09:39:23.693Z|2026.09.6
Verify it yourself
npx teppi-check https://api-macro-br-production.up.railway.app/v1/ptaxcurl -s https://api.teppi.xyz/v1/trust/cap_01M1RDA2DAKDMTRWRPDP3PVHXY