Endpoint · market dataGETapi.x402node.dev /finance/forex-hist ?date=string&from=string&to=string
Historical forex rate for a specific date (ECB data via Frankfurter).
Read more
Historical forex rate for a specific date (ECB data via Frankfurter). Returns rates for the requested date, going back to 1999. Use ?date=2024-01-15 and from=USD and to=EUR. Built for AI agents doing back-testing, audit, accounting reconciliation. Accepts payment on Base or Solana — either network works.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.008 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.x402node.dev/finance/forex-hist?date=string&from=string&to=string
Seen
first 8 days ago · last 4 days ago
14 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.516 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 0.484: 0.284 uncertain ? + 0.200 short ? · 0.134 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.527 | 0.316 | 0 | −0.284 | |
| 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 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.516 | gap to 1.000 = 0.484 · 0.200 short · 0.284 uncertain | 0.516 | −0.200 | −0.284 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.527 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.516 → UNRATED: 13 of 30 paid calls weights 2026.09.6 · 13 samples · seed cap_01M3E3XQDB9JG43ESHA1NV9B7H|2026-09-03T23:18:17.622Z|2026.09.6
Verify it yourself
npx teppi-check https://api.x402node.dev/finance/forex-hist?date=string&from=string&to=stringcurl -s https://api.teppi.xyz/v1/trust/cap_01M3E3XQDB9JG43ESHA1NV9B7H