Vellium & Co

Directory › Blockchain reads › FiatDock

FiatDock

USDC balance of any address on Base — the x402 settlement asset (atomic + USDC). Pay-per-call via x402. An empty body is answered for the wallet that pays (the payment's signer); send {"address":"0x…"} for any other address.

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
32 ms
Price
$0.001 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
9
Category
Blockchain reads
Address
https://fiatdock.com/v1/chain/usdc-balance

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/5385342b6bb8.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].