1.4 KiB
NIP-85
Asset Prices
draft optional
This NIP defines event kinds to host asset prices.
Latest price
Kind 31892 stores the latest conversion price. The d tag contains the commonly used ticket conversion symbol.The value tag contains the amount, parseable to a Decimal.n tags separate the conversion ticker into the two ticket symbols.The event's created_at field MUST be used as the date/time of the conversion value.
{
"kind": 31892,
"tags": [
["d", "BTCUSD"],
["n", "BTC"],
["n", "USD"],
["value", "100000"]
],
// other fields
}
Since this is a replaceable event, only the latest price will be available.
Historical data
Historical prices can be found as 1892 events with the same structure as 31892. Historical queries can use Nostr's since and until filter to narrow the search.
{
"kind": 1892,
"tags": [
["d", "BTCUSD"],
["n", "BTC"],
["n", "USD"],
["value", "100000"]
],
// other fields
}
Even though these events use the d tag, they are not replaceable.
Declaring Pricing Providers
Kind 10041 lists the user's authorized providers for pricing services.. It contains s tags with the pubkey of the provider and the relay where those events are stored.
{
"kind": 10041,
"tags": [
["s", "4fd5e210530e4f6b2cb083795834bfe5108324f1ed9f00ab73b9e8fcfe5f12fe", "wss://bitagent.prices"],
],
//...
}