Unnamed service
GET x402stock.xyz/api/v1/exchange-rates
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Official US Treasury reporting rates of exchange — government FX reference rates for ~170 currencies, in units of foreign currency per 1 USD, for the latest quarter. Use for accounting-grade and exotic-currency conversion the market /api/v1/forex feed lacks. Filter with `?currency=Euro`. Updated quarterly. From the US Treasury (FiscalData). From x402stock
Resource: x402stock.xyz/api/v1/exchange-rates
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Payment methods: — · Last validation: 2026-09-14 16:39:50.889+00
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"type": "string"
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"queryParams": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"currency": {
"type": "string",
"maxLength": 64,
"minLength": 1
}
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"rates"
],
"properties": {
"note": {
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"as_of": {
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{
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{
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]
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"count": {
"type": "number"
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"rates": {
"type": "array",
"items": {
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"required": [
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"exchange_rate",
"effective_date"
],
"properties": {
"country": {
"type": "string"
},
"currency": {
"type": "string"
},
"exchange_rate": {
"anyOf": [
{
"type": "number"
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{
"type": "null"
}
]
},
"effective_date": {
"type": "string"
},
"country_currency": {
"type": "string"
}
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}
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"series": {
"type": "string"
},
"source": {
"type": "string",
"const": "us_treasury"
},
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{
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}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
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"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "20000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.