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US Bitcoin ETF Market Data API
x402
US Bitcoin ETF Market Data API is a paid API for AI agents from claw402.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns real-time market data for US-listed Bitcoin spot ETFs, including price, NAV, premium/discount, net inflows, BTC holdings, and issuer details.
Price / call$0.002
Success—
StatusUnknown
How this service works
Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.
Output
A JSON array of objects for each US Bitcoin ETF, each containing: ticker, ETF name, issuer, custodian, current price, price change, NAV, premium/discount rate, net inflow, BTC amount held (total and 24h/7d changes), shares outstanding, market cap, total assets, management fee, fee waiver, and status. Keyed under 'data' with a status code.
Example use cases
Example prompt
“Can you pull up the latest market data for all US Bitcoin spot ETFs — I want to see prices, NAV, premium/discount, net inflows, and how much BTC each fund is holding, especially BlackRock's IBIT?”
Technical details
Endpoint
GEThttps://claw402.ai/api/v1/coinank/etf/us-btcWhen to prefer
Use this endpoint when you need comprehensive, real-time US Bitcoin spot ETF data including fund flows, BTC holdings, NAV, and premium/discount in a single call — especially when you want to avoid API key registration and pay per-call in USDC via x402. Prefer over traditional financial data APIs when you need permissionless, wallet-based access.
Side effects
- Payment not included or insufficient USDC — returns HTTP 402 requiring x402 payment
- Malformed or missing 'properties' parameter — may return empty data array
- Upstream vergex.trade data source unavailable — returns code non-zero or empty data
- Rate limit or wallet issue — payment rejected by gateway
Input
{
"properties": "us-btc"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"code": "1",
"data": [
{
"fee": 0.0025,
"prem": -0.00068411740479013,
"sort": 2,
"type": "Spot",
"price": 36.36,
"change": -0.81,
"cumNet": 38036191007.98,
"issuer": "BlackRock",
"status": "Running",
"ticker": "IBIT",
"volume": "42619958",
"etfName": "iShares Bitcoin Trust",
"assertVo": {
"nav": 46.19,
"name": "iShares Bitcoin Trust",
"ticker": "IBIT",
"btcValue": 66569579515.28,
"btcAmount": 818860.7507,
"netAssets": 66596633405,
"assetsDate": 1778716800000,
"marketDate": 1778716800000,
"marketPrice": 46.17,
"premiumDiscount": -0.04,
"btcAmount7dChange": -2651.915,
"sharesOutstanding": 1441880000,
"btcAmount24hChange": 1767.8937,
"btcAmount7dPercent": -0.32,
"btcAmount24hPercent": 0.22
},
"priceChg": -0.81,
"totalNav": 56219587998.64,
"custodian": "Coinbase",
"feeWaiver": 0.0012,
"marketCap": 52426756800,
"netInflow": -30762480,
"avgDailyVol": "22372400",
"outstanding": 1441880000,
"totalAssets": "66569579515.28",
"priceChgRate": -0.0218,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005534
},
{
"fee": 0.0025,
"prem": -0.0008020127408623345,
"sort": 3,
"type": "Spot",
"price": 55.89,
"change": -1.24,
"cumNet": 12510329833.45,
"issuer": "Fidelity",
"status": "Running",
"ticker": "FBTC",
"volume": "3447139",
"etfName": "Wise Origin Bitcoin Trust by Fidelity ",
"assertVo": {
"nav": 65.440408,
"name": "Fidelity Wise Origin Bitcoin Fund",
"ticker": "FBTC",
"btcAmount": 188003.0862,
"netAssets": 14064509000,
"assetsDate": 1776297600000,
"marketDate": 1776297600000,
"marketPrice": 65.63,
"premiumDiscount": 0.09,
"btcAmount7dChange": 1290.6811,
"sharesOutstanding": 214300000,
"btcAmount24hChange": 1290.6811,
"btcAmount7dPercent": 0.69,
"btcAmount24hPercent": 0.69
},
"priceChg": -1.24,
"totalNav": 21012738965.17048,
"custodian": "Self-Custody",
"feeWaiver": 0,
"marketCap": 11977227000,
"netInflow": 14019676.75,
"avgDailyVol": "11138750",
"outstanding": 214300000,
"totalAssets": "14158364000.00",
"priceChgRate": -0.0217,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005547
},
{
"fee": 0.015,
"prem": 0.0006024240335746889,
"sort": 1,
"type": "Spot",
"price": 49.85,
"change": -1.06,
"cumNet": -21675035004,
"issuer": "Grayscale",
"status": "Running",
"ticker": "GBTC",
"volume": "1695846",
"etfName": "Grayscale Bitcoin Trust ",
"assertVo": {
"nav": 49.86,
"name": "Grayscale Bitcoin Trust",
"ticker": "GBTC",
"btcAmount": 140403.3956,
"netAssets": 9021092267,
"assetsDate": 1781654400000,
"marketDate": 1781654400000,
"marketPrice": 49.85,
"premiumDiscount": -0.02,
"btcAmount7dChange": -3580.0161,
"sharesOutstanding": 180930100,
"btcAmount24hChange": -261.8637,
"btcAmount7dPercent": -2.49,
"btcAmount24hPercent": -0.19
},
"priceChg": -1.06,
"totalNav": 20387705512.21,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 9019365485,
"netInflow": -15456445,
"avgDailyVol": "7821149",
"outstanding": 180930100,
"totalAssets": "9021092267",
"priceChgRate": -0.0208,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005620
},
{
"fee": 0.015,
"prem": 0.0012754958574503483,
"sort": 11,
"type": "Spot",
"price": 28.39,
"change": -0.65,
"cumNet": 937679147.888,
"issuer": "Grayscale",
"status": "Running",
"ticker": "BTC",
"volume": "8191000",
"etfName": "Grayscale Bitcoin Trust ",
"assertVo": {
"nav": 33.34,
"name": "Grayscale Bitcoin Mini Trust (BTC)",
"ticker": "BTC",
"btcAmount": 52500.756,
"netAssets": 3927698285,
"assetsDate": 1776297600000,
"marketDate": 1776297600000,
"marketPrice": 33.36,
"premiumDiscount": 0.06,
"btcAmount7dChange": 388.5673,
"sharesOutstanding": 117809963,
"btcAmount24hChange": 388.5673,
"btcAmount7dPercent": 0.75,
"btcAmount24hPercent": 0.75
},
"priceChg": -0.65,
"totalNav": 3920779281.868,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 3344624849.57,
"netInflow": 0,
"avgDailyVol": "8191000",
"outstanding": 117809963,
"totalAssets": "3927581033",
"priceChgRate": -0.0224,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005638
},
{
"fee": 0.002,
"prem": -0.00048515222338774144,
"sort": 4,
"type": "Spot",
"price": 34.86,
"change": -0.77,
"cumNet": 2232982994.8,
"issuer": "Bitwise",
"status": "Running",
"ticker": "BITB",
"volume": "1808237",
"etfName": "Bitwise Bitcoin ETP ",
"assertVo": {
"nav": 35.62,
"name": "Bitwise Bitcoin ETF",
"ticker": "BITB",
"btcAmount": 36788.54,
"netAssets": 2413622260.72,
"assetsDate": 1781481600000,
"marketDate": 1781481600000,
"marketPrice": 35.63,
"premiumDiscount": 0.04,
"btcAmount7dChange": -124.86,
"sharesOutstanding": 67760000,
"btcAmount24hChange": 0,
"btcAmount7dPercent": -0.34,
"btcAmount24hPercent": 0
},
"priceChg": -0.77,
"totalNav": 4102990575,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 2362113600,
"netInflow": 0,
"avgDailyVol": "3055550",
"outstanding": 67760000,
"totalAssets": "2413403143",
"priceChgRate": -0.0216,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005583
},
{
"fee": 0.0021,
"prem": -0.0003437521180372771,
"sort": 5,
"type": "Spot",
"price": 21.3,
"change": -0.47,
"cumNet": 2690558492.665,
"issuer": "Ark/21 Shares",
"status": "Running",
"ticker": "ARKB",
"volume": "1563635",
"etfName": "Ark/21 Shares Bitcoin Trust ",
"assertVo": {
"nav": 21.11,
"name": "ARK 21Shares Bitcoin ETF",
"ticker": "ARKB",
"btcAmount": 31846.1597,
"netAssets": 2092359570.44,
"assetsDate": 1781481600000,
"marketDate": 1781222400000,
"marketPrice": 21.08,
"premiumDiscount": -0.11,
"sharesOutstanding": 99258044
},
"priceChg": -0.47,
"totalNav": 4900400773.145,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 2114196337.2,
"netInflow": -43530613.56,
"avgDailyVol": "3381550",
"outstanding": 99258044,
"totalAssets": "2092359570.44",
"priceChgRate": -0.0216,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005556
},
{
"fee": 0.0025,
"prem": -0.0007272636421753464,
"sort": 6,
"type": "Spot",
"price": 18.15,
"change": -0.41,
"cumNet": 847173399.5,
"issuer": "VanEck",
"status": "Running",
"ticker": "HODL",
"volume": "1102646",
"etfName": "VanEck Bitcoin Trust",
"assertVo": {
"nav": 18.55,
"name": "VanEck Bitcoin Trust",
"ticker": "HODL",
"btcAmount": 16254.8534,
"netAssets": 1077467585,
"assetsDate": 1781568000000,
"marketDate": 1781568000000,
"marketPrice": 18.56,
"premiumDiscount": 0.04,
"btcAmount7dChange": -139.2167,
"sharesOutstanding": 58084506,
"btcAmount24hChange": -500.3198,
"btcAmount7dPercent": -0.85,
"btcAmount24hPercent": -2.99
},
"priceChg": -0.41,
"totalNav": 1435117458.75,
"custodian": "Gemini",
"feeWaiver": 0,
"marketCap": 1054233783.9,
"netInflow": -4113807.75,
"avgDailyVol": "280200",
"outstanding": 58084506,
"totalAssets": "1077467585",
"priceChgRate": -0.0221,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005597
},
{
"fee": 0.0025,
"prem": 0.0006303831716880648,
"sort": 7,
"type": "Spot",
"price": 63.89,
"change": -1.43,
"cumNet": 311317844.275,
"issuer": "Invesco/Galaxy",
"status": "Running",
"ticker": "BTCO",
"volume": "95601",
"etfName": "Invesco Galaxy Bitcoin ETF ",
"assertVo": {
"nav": 75.03,
"name": "Invesco Galaxy Bitcoin ETF",
"ticker": "BTCO",
"btcAmount": 6760.0597,
"netAssets": 505720000,
"assetsDate": 1776297600000,
"marketDate": 1776297600000,
"marketPrice": 75.07,
"premiumDiscount": 0.01,
"btcAmount7dChange": -33.404,
"sharesOutstanding": 6740000,
"btcAmount24hChange": -33.404,
"btcAmount7dPercent": -0.49,
"btcAmount24hPercent": -0.49
},
"priceChg": -1.43,
"totalNav": 776179309.625,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 430618600,
"netInflow": -6392723.3,
"avgDailyVol": "",
"outstanding": 6740000,
"totalAssets": "505720000",
"priceChgRate": -0.0219,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005562
},
{
"fee": 0.0025,
"prem": -0.0008159475542675043,
"sort": 9,
"type": "Spot",
"price": 18.11,
"change": -0.4,
"cumNet": 508423505.99999994,
"issuer": "Valkyrie",
"status": "Running",
"ticker": "BRRR",
"volume": "206706",
"etfName": "Valkyrie Bitcoin Fund",
"assertVo": {
"nav": 18.5,
"name": "Valkyrie Bitcoin Fund",
"ticker": "BRRR",
"btcAmount": 5927.4013,
"netAssets": 389698182.2,
"assetsDate": 1781654400000,
"marketDate": 1781654400000,
"marketPrice": 18.51,
"premiumDiscount": 0.06,
"btcAmount7dChange": -25.9185,
"sharesOutstanding": 21064767,
"btcAmount24hChange": -55.322,
"btcAmount7dPercent": -0.44,
"btcAmount24hPercent": -0.92
},
"priceChg": -0.4,
"totalNav": 884841184,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 381482930.37,
"netInflow": 0,
"avgDailyVol": "287450",
"outstanding": 21064767,
"totalAssets": "389698182.2",
"priceChgRate": -0.0216,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005576
},
{
"fee": 0.0019,
"prem": -0.00036890697715707965,
"sort": 8,
"type": "Spot",
"price": 37.11,
"change": -0.82,
"cumNet": 465272912.2,
"issuer": "Franklin Templeton",
"status": "Running",
"ticker": "EZBC",
"volume": "163358",
"etfName": "Franklin Bitcoin ETF",
"assertVo": {
"nav": 37.92,
"name": "Franklin Bitcoin ETF",
"ticker": "EZBC",
"btcAmount": 5662.7428,
"netAssets": 375360000,
"assetsDate": 1781568000000,
"marketDate": 1781568000000,
"marketPrice": 37.93,
"premiumDiscount": 0.03,
"btcAmount7dChange": -31.8649,
"sharesOutstanding": 9898734,
"btcAmount24hChange": -228.8497,
"btcAmount7dPercent": -0.56,
"btcAmount24hPercent": -3.88
},
"priceChg": -0.82,
"totalNav": 762832414.2,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 367342018.74,
"netInflow": 0,
"avgDailyVol": "873175",
"outstanding": 9898734,
"totalAssets": "375360000.00",
"priceChgRate": -0.0216,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005589
},
{
"fee": 0.003,
"prem": 0.00029938617250202526,
"sort": 10,
"type": "Spot",
"price": 67.93,
"change": -1.5,
"cumNet": 239417953.42,
"issuer": "WisdomTree",
"status": "Running",
"ticker": "BTCW",
"volume": "23043",
"etfName": "WisdomTree Bitcoin Trust ",
"assertVo": {
"nav": 83.623,
"name": "WisdomTree Bitcoin Fund",
"ticker": "BTCW",
"btcAmount": 2187.3295,
"netAssets": 177280430,
"assetsDate": 1778803200000,
"marketDate": 1778803200000,
"marketPrice": 83.66,
"premiumDiscount": 0.04,
"btcAmount7dChange": -56.7987,
"sharesOutstanding": 2119997,
"btcAmount24hChange": -116.8586,
"btcAmount7dPercent": -2.53,
"btcAmount24hPercent": -5.07
},
"priceChg": -1.5,
"totalNav": 398639452.86,
"custodian": "Coinbase",
"feeWaiver": 0,
"marketCap": 144011396.21,
"netInflow": 0,
"avgDailyVol": "71300",
"outstanding": 2119997,
"totalAssets": "177280430.00",
"priceChgRate": -0.0216,
"finalDeadline": "",
"netInflowDate": 1781654400000,
"lastUpdateDate": 1781763005569
}
],
"success": true
}Schema · Response
{
"type": "json",
"example": {
"code": 0,
"data": []
}
}Tags
x402
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