Endpoint · market dataGETdata.greeneris.io /v1/fx/history ?base=EUR&end=2026-05-08&start=2026-05-01&symbols=USD
European Central Bank reference exchange rates for any past date or date range (business days since 1999-01-04), via frankfurter.dev.
Read more
European Central Bank reference exchange rates for any past date or date range (business days since 1999-01-04), via frankfurter.dev. Query: ?date=2026-05-01 for one day, or ?start=2026-05-01&end=2026-05-08 for a daily series (max 366 days), plus ?base=EUR&symbols=USD,GBP (symbols optional -> all). Series responses nest rates by date. Historical data is immutable; served with a 24h cache.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.002 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://data.greeneris.io/v1/fx/history?base=EUR&end=2026-05-08&start=2026-05-01&symbols=USD
MCP server on this host: io.github.contentfactory/eu-verify
Seen
first 35 days ago · last 8 days ago
64 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.829 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.171: 0.075 uncertain ? + 0.095 short ? · 0.071 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.52 | 0.476 | 0.095 | −0.095 | −0.010 | |
| liveness it answered at all |
0.60 | 1.00 | 0.890 | 0.534 | 0 | −0.066 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.829 | gap to 1.000 = 0.171 · 0.095 short · 0.075 uncertain | 0.829 | −0.095 | −0.075 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.476 latency p95
+ 0.600 × 0.890 liveness
+ 0.200 × 1.000 price stability
= 0.829 → UNRATED: 56 of 30 paid calls weights 2026.09.6 · 56 samples · seed cap_01M1A59YB7T6B4FW427R3BG1XG|2026-09-03T20:40:32.752Z|2026.09.6
Verify it yourself
npx teppi-check https://data.greeneris.io/v1/fx/history?base=EUR&end=2026-05-08&start=2026-05-01&symbols=USDcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59YB7T6B4FW427R3BG1XG