https://quickbuild.quynguyenbac.workers.dev/api/fx/rate
live · payable · 1s ago Live with a valid USDC quote; Settled has not bought from it yet.
No receipt · scored by observation: Settled probes this endpoint and reads its payTo on Base, but its scout has not bought from it yet, so there is no delivery receipt
Last probed 2026-11-06 08:58 UTC · first seen 2026-10-21 01:22 UTC · payTo 0x751a4c3841bE287544C371B4EE09Bd3366AeA7cf
Foreign-exchange rates from one base currency (`from`, default USD) to a list of currencies (`to`, comma-separated, or "all"; default 14 majors incl. EUR, GBP, JPY, CNY, INR, KRW, VND), with `amount` converted. Live mode uses Coinbase public exchange rates (updated about every…
Flags: none
Real purchase
Settled's scout has not bought from this endpoint yet. Sellers can ask for a paid test at /buy.
Listed elsewhere
- PayAPI Market: listed, not badged, reliability – (unscored) — for the base URL
https://quickbuild.quynguyenbac.workers.dev. PayAPI Market's own claim; the fields above are Settled's measurements.
Seller
Claimed by QuickBuild · https://quickbuild.quynguyenbac.workers.dev/ (seller-published, not verified by Settled; Seller Watch off). Everything Settled knows about this seller.
Show "Checked by Settled" on your site
The badge links to this page, the live check. It shows the current state and when Settled last checked, refreshes within five minutes, and says so when a paid purchase fails. Markdown:
[](https://settled.tools/e/2990975)HTML:
<a href="https://settled.tools/e/2990975"><img src="https://settled.tools/badge/2990975.svg" alt="Checked by Settled: live" height="20"></a>For agents
The same facts, signed, as JSON: free check (25 a day, no key; 300 with a payer record) · MCP https://settled.tools/mcp/free · how to check before you pay.
Data: Settled probes, sanctioned venue APIs and Base on-chain payout logs. Best-effort, not financial advice. Labels marked "suspected" can be disputed. Machine-readable: /v1/income/venues · llms.txt · openapi.json