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BYTE Library x402 Gateway – Crypto Top 100 Feed
x402
BYTE Library x402 Gateway – Crypto Top 100 Feed is a paid API for AI agents from x402.payperbyte.io, paid per call via x402, $0.029297/call, status unknown (last checked 2026-09-13).
Returns cryptographically signed, EIP-712 provenance-stamped market data for the top 100 cryptocurrencies, paid per call in USDC via x402.
Price / call$0.029297
Success—
StatusUnknown
How this service works
Verified, provenance-first data feeds for AI agents. Every payload is cryptographically signed and EIP-712 PayloadAttestation provenance-stamped — covering crypto markets, DeFi yields, weather, earthquakes, news, code-pulse, threat-intel, and a slashable fact-oracle. Pay per call in USDC over x402 with no API keys — a wallet, not a secret on the box. Settlement is on Base (eip155:8453). Price is per-feed, derived from expected payload size at $0.005000/KB (floor $0.001000).
Output
A JSON payload containing market data (prices, rankings, etc.) for the top 100 cryptocurrencies, cryptographically signed and stamped with an EIP-712 PayloadAttestation for provenance verification. Settled on Base (eip155:8453) after USDC payment via x402.
Example use cases
Verify crypto prices on-chain
“Fetch me tamper-evident price and market cap data for the top 100 cryptocurrencies with EIP-712 attestations — I need to be able to prove the data wasn't tampered with before we use it in our smart contract logic.”
Audit trail for trading decisions
“Grab the latest provenance-stamped crypto market feed for the top 100 coins — we're logging every price signal that feeds into our trading strategy and need cryptographic proof of what data we acted on at each timestamp.”
API-key-free market data agent
“Pull real-time rankings and prices for the top 100 tokens from the BYTE Library gateway using my wallet — no API keys, just pay per call in USDC on Base, and make sure the payload comes back signed so I can validate it downstream.”
Technical details
Endpoint
GEThttps://x402.payperbyte.io/feeds/crypto-top100When to prefer
Choose this endpoint when you need tamper-evident, cryptographically attested crypto market data for the top 100 coins and your agent workflow requires provenance guarantees. Prefer it over unsigned REST feeds when auditability, on-chain attestation, or trustless data verification matters. Also ideal when you want API-key-free access using a crypto wallet and USDC micropayments on Base.
Side effects
- Payment not included or insufficient USDC — returns HTTP 402 with payment requirements
- Invalid x402 payment header — returns authorization error
- Network or feed unavailability — returns 5xx error
- Stale or delayed market data if upstream feed lags
- Wallet not configured for Base network — payment settlement fails
Input
{
"properties": "price,market_cap,volume,rank"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"data": [
{
"id": "bitcoin",
"name": "Bitcoin",
"symbol": "btc",
"market_cap": 1275191264682,
"last_updated": "2026-06-12T04:52:07.045Z",
"total_volume": 29035898388,
"current_price": 63626,
"market_cap_rank": 1,
"price_change_percentage_24h": 1.43107
},
{
"id": "ethereum",
"name": "Ethereum",
"symbol": "eth",
"market_cap": 202265618710,
"last_updated": "2026-06-12T04:52:07.764Z",
"total_volume": 11804141636,
"current_price": 1675.96,
"market_cap_rank": 2,
"price_change_percentage_24h": 1.17913
},
{
"id": "tether",
"name": "Tether",
"symbol": "usdt",
"market_cap": 186623028253,
"last_updated": "2026-06-12T04:52:07.155Z",
"total_volume": 49579415699,
"current_price": 0.99849,
"market_cap_rank": 3,
"price_change_percentage_24h": -0.02514
},
{
"id": "binancecoin",
"name": "BNB",
"symbol": "bnb",
"market_cap": 81277152838,
"last_updated": "2026-06-12T04:52:07.390Z",
"total_volume": 688559832,
"current_price": 603.03,
"market_cap_rank": 4,
"price_change_percentage_24h": 1.35512
},
{
"id": "usd-coin",
"name": "USDC",
"symbol": "usdc",
"market_cap": 74875002949,
"last_updated": "2026-06-12T04:52:07.358Z",
"total_volume": 13049560779,
"current_price": 0.999641,
"market_cap_rank": 5,
"price_change_percentage_24h": -0.00819
},
{
"id": "ripple",
"name": "XRP",
"symbol": "xrp",
"market_cap": 71132968348,
"last_updated": "2026-06-12T04:52:06.946Z",
"total_volume": 1629541492,
"current_price": 1.15,
"market_cap_rank": 6,
"price_change_percentage_24h": 2.41086
},
{
"id": "solana",
"name": "Solana",
"symbol": "sol",
"market_cap": 38848362087,
"last_updated": "2026-06-12T04:52:08.780Z",
"total_volume": 2582903083,
"current_price": 67.02,
"market_cap_rank": 7,
"price_change_percentage_24h": 2.78069
},
{
"id": "tron",
"name": "TRON",
"symbol": "trx",
"market_cap": 29879516142,
"last_updated": "2026-06-12T04:52:01.513Z",
"total_volume": 727766883,
"current_price": 0.315041,
"market_cap_rank": 8,
"price_change_percentage_24h": -2.02225
},
{
"id": "figure-heloc",
"name": "Figure Heloc",
"symbol": "figr_heloc",
"market_cap": 19315499105,
"last_updated": "2026-06-12T04:52:05.339Z",
"total_volume": 103099203,
"current_price": 1.03,
"market_cap_rank": 9,
"price_change_percentage_24h": 0.56884
},
{
"id": "dogecoin",
"name": "Dogecoin",
"symbol": "doge",
"market_cap": 13403650819,
"last_updated": "2026-06-12T04:52:10.454Z",
"total_volume": 631918232,
"current_price": 0.086721,
"market_cap_rank": 10,
"price_change_percentage_24h": 1.79712
},
{
"id": "hyperliquid",
"name": "Hyperliquid",
"symbol": "hype",
"market_cap": 13110089997,
"last_updated": "2026-06-12T04:52:04.044Z",
"total_volume": 948691145,
"current_price": 58.89,
"market_cap_rank": 11,
"price_change_percentage_24h": 7.55245
},
{
"id": "usds",
"name": "USDS",
"symbol": "usds",
"market_cap": 10513291183,
"last_updated": "2026-06-12T04:52:08.357Z",
"total_volume": 96122376,
"current_price": 0.999522,
"market_cap_rank": 12,
"price_change_percentage_24h": -0.01865
},
{
"id": "leo-token",
"name": "LEO Token",
"symbol": "leo",
"market_cap": 8742129603,
"last_updated": "2026-06-12T04:52:06.218Z",
"total_volume": 427818,
"current_price": 9.5,
"market_cap_rank": 13,
"price_change_percentage_24h": 0.00361
},
{
"id": "rain",
"name": "Rain",
"symbol": "rain",
"market_cap": 8257832539,
"last_updated": "2026-06-12T04:52:05.593Z",
"total_volume": 48498949,
"current_price": 0.01326205,
"market_cap_rank": 14,
"price_change_percentage_24h": -0.6752
},
{
"id": "zcash",
"name": "Zcash",
"symbol": "zec",
"market_cap": 7281727289,
"last_updated": "2026-06-12T04:52:04.112Z",
"total_volume": 463659941,
"current_price": 434.37,
"market_cap_rank": 15,
"price_change_percentage_24h": 2.8208
},
{
"id": "monero",
"name": "Monero",
"symbol": "xmr",
"market_cap": 6984109330,
"last_updated": "2026-06-12T04:52:07.904Z",
"total_volume": 259128511,
"current_price": 368.85,
"market_cap_rank": 16,
"price_change_percentage_24h": 8.53206
},
{
"id": "stellar",
"name": "Stellar",
"symbol": "xlm",
"market_cap": 6556874194,
"last_updated": "2026-06-12T04:52:00.803Z",
"total_volume": 228322282,
"current_price": 0.194227,
"market_cap_rank": 17,
"price_change_percentage_24h": 1.18365
},
{
"id": "canton-network",
"name": "Canton",
"symbol": "cc",
"market_cap": 6440608647,
"last_updated": "2026-06-12T04:52:08.065Z",
"total_volume": 21183733,
"current_price": 0.166044,
"market_cap_rank": 18,
"price_change_percentage_24h": 0.27697
},
{
"id": "cardano",
"name": "Cardano",
"symbol": "ada",
"market_cap": 6394683900,
"last_updated": "2026-06-12T04:52:10.218Z",
"total_volume": 463480858,
"current_price": 0.172063,
"market_cap_rank": 19,
"price_change_percentage_24h": 3.30437
},
{
"id": "whitebit",
"name": "WhiteBIT Coin",
"symbol": "wbt",
"market_cap": 6164652602,
"last_updated": "2026-06-12T04:52:02.923Z",
"total_volume": 93698533,
"current_price": 52.1,
"market_cap_rank": 20,
"price_change_percentage_24h": 1.30464
},
{
"id": "chainlink",
"name": "Chainlink",
"symbol": "link",
"market_cap": 5747382753,
"last_updated": "2026-06-12T04:52:06.449Z",
"total_volume": 249334186,
"current_price": 7.91,
"market_cap_rank": 21,
"price_change_percentage_24h": 1.32822
},
{
"id": "the-open-network",
"name": "Toncoin",
"symbol": "ton",
"market_cap": 4609455037,
"last_updated": "2026-06-12T04:52:02.234Z",
"total_volume": 181085693,
"current_price": 1.72,
"market_cap_rank": 22,
"price_change_percentage_24h": 3.43393
},
{
"id": "ethena-usde",
"name": "Ethena USDe",
"symbol": "usde",
"market_cap": 4479288635,
"last_updated": "2026-06-12T04:52:03.305Z",
"total_volume": 88331723,
"current_price": 0.998796,
"market_cap_rank": 23,
"price_change_percentage_24h": 0.02168
},
{
"id": "usd1-wlfi",
"name": "USD1",
"symbol": "usd1",
"market_cap": 4322882413,
"last_updated": "2026-06-12T04:52:04.712Z",
"total_volume": 1125678818,
"current_price": 0.99798,
"market_cap_rank": 24,
"price_change_percentage_24h": -0.05259
},
{
"id": "dai",
"name": "Dai",
"symbol": "dai",
"market_cap": 4195677049,
"last_updated": "2026-06-12T04:52:06.278Z",
"total_volume": 205149345,
"current_price": 0.999747,
"market_cap_rank": 25,
"price_change_percentage_24h": 0.0036
}
],
"feed": "crypto-top100",
"count": 25,
"timestamp": "2026-06-12T04:52:21.720Z"
}Schema · Response
{
"type": "json",
"example": {
"feed": "crypto-top100"
}
}Tags
x402
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