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santyvv-data FX Convert — Keyless Currency Conversion via x402
x402
santyvv-data FX Convert — Keyless Currency Conversion via x402 is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Converts a currency amount from one currency to another using live FX rates, paid per call in USDC on Base via x402 — no API keys or accounts required.
Price / call$0.01
Success—
StatusUnknown
How this service works
Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.
Output
Returns the converted currency amount and the underlying exchange rate used for the conversion, normalized to a consistent response format. Includes the source and target currency codes and a timestamp indicating data freshness. Backed by multi-source fallback and edge caching for reliability.
Example use cases
Travel budget currency check
“I'm heading to Japan next week — can you convert 2000 USD to JPY so I know how much yen I'll have to spend?”
E-commerce invoice pricing
“We're invoicing a UK client — convert 4500 EUR to GBP at today's live rate so I can fill in the correct amount on their invoice.”
Crypto treasury FX snapshot
“Our DAO holds USDC and wants to report holdings in Swiss francs — what's the current USD to CHF rate, and how much is 50000 USD worth in CHF right now?”
Technical details
Endpoint
GEThttps://x402.santyvv.com/api/fx/convert?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, one-off currency conversion or FX rate lookup without signing up for an account or managing API keys. It is ideal for AI agents operating autonomously with a USDC wallet on Base, since payment is handled inline via x402. Prefer it over traditional FX APIs when you want zero-friction access with pay-as-you-go pricing at $0.01 per call, especially for low-frequency or on-demand conversions in agentic workflows.
Side effects
- Unsupported or invalid currency code returns an error response
- Payment failure or insufficient USDC balance causes a 402 rejection before the data is returned
- Stale cached data may be returned if underlying public providers are temporarily unavailable
- Missing required query parameters (source, target, or amount) return a 400-level error
- Network latency spikes on Base during payment settlement may add delay
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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