ArgonautWorks ECB FX Reference API

https://official-fx-reference.vercel.app

● healthy utility

Source-cited ECB foreign-exchange reference conversion with explicit cross-rate math. Underlying ECB statistics are available free; the fee covers validation, calculation, and machine-ready delivery.

Quality grade

How grading works

B 68.3 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

Payability 20.0 / 20

✓ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 8.3 / 40

2 distinct payers, 15 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 6 h ago. On-chain activity last read 11 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

2 resource(s) advertised by this origin.

https://official-fx-reference.vercel.app/api/v1/convert

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://official-fx-reference.vercel.app/api/v1/convert

/.well-known/x402.json

https://official-fx-reference.vercel.app/.well-known/x402

Listed in

Directories this entry was found in.

a2a x402scan