Endpoint · market dataGETapi.x-402.online /v1/fx/rates ?base=USD&symbols=EUR%2CGBP
Official ECB foreign exchange reference rates for about 30 currencies, today or on any past date since 1999, from any base, with amount conversion Official ECB foreign exchange…
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Official ECB foreign exchange reference rates for about 30 currencies, today or on any past date since 1999, from any base, with amount conversion Official ECB foreign exchange reference rates for about 30 currencies, today or on any past date since 1999, from any base currency, with optional amount conversion. Query: ?base=USD&symbols=EUR,GBP,JPY&date=2024-01-02&amount=250Overview
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.x-402.online/v1/fx/rates?base=USD&symbols=EUR%2CGBP
MCP server on this host: online.x-402/mcp
Seen
first 3 days ago · last 17 hr ago
5 free handshakes
Payment
Pays through
x402 · MPP tempo
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.369 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 0.631: 0.600 uncertain ? + 0.031 short ? · 0.081 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.000 | 0.000 | 0 | −0.600 | |
| latency p95 it answered as fast as its class |
0.20 | 0.85 | 0.845 | 0.169 | −0.031 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.369 | gap to 1.000 = 0.631 · 0.031 short · 0.600 uncertain | 0.369 | −0.031 | −0.600 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.000 liveness
+ 0.200 × 0.845 latency p95
+ 0.200 × 1.000 price stability
= 0.369 → UNRATED: 5 of 30 paid calls weights 2026.09.6 · 5 samples · seed cap_01M3V007CQJJ8MZ4A7QABP0T90|2026-09-04T09:16:09.270Z|2026.09.6
Verify it yourself
npx teppi-check https://api.x-402.online/v1/fx/rates?base=USD&symbols=EUR%2CGBPcurl -s https://api.teppi.xyz/v1/trust/cap_01M3V007CQJJ8MZ4A7QABP0T90