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Vextorium Exchange Reserves
x402
Vextorium Exchange Reserves is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-11).
Returns proof-of-reserve data for crypto exchanges including reserve balances, net flows, open interest, and trading volumes sourced from on-chain wallet data via DefiLlama
Price / call$0.004
Success—
StatusUnknown
How this service works
On-chain reserves of centralized exchanges (Binance, OKX, Bybit, Coinbase...) from their published wallets: total and ex-own-token assets, net inflows/outflows over 24h, 7d and 30d, spot and derivatives volume and open interest. Sort by reserves or flows.
Output
Returns a JSON array of exchanges, each with: exchange name, on-chain wallet proof URL, total reserves in USD, reserves excluding own token in USD, net flows over 24h/7d/30d in USD, open interest in USD, spot volume 24h in USD, and derivatives volume 24h in USD. Also includes metadata: sort order used, data source attribution (DefiLlama), and a note that figures reflect known wallets only and are not a solvency audit.
Example use cases
Exchange solvency risk monitoring
“Pull the latest exchange reserve data sorted by reserves and show me which major CEXes have seen the biggest net outflows in the past 7 days — I want to flag any that look like a potential risk.”
Derivatives market leader research
“Which crypto exchanges currently have the highest open interest and derivatives trading volume in the last 24 hours? Sort by derivatives and give me the top 5.”
Reserve transparency verification
“I want to check the proof-of-reserve wallet links for the top exchanges and compare their total reserves against their reserves excluding their own native tokens — can you fetch that data?”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/exchange-reserves?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need comprehensive exchange-level reserve and flow data aggregated from on-chain wallet disclosures, especially when you need to compare multiple exchanges at once. Prefer this over individual exchange APIs when you want a unified, ranked view sourced from DefiLlama with consistent methodology. Best for risk monitoring, solvency signals, and competitive exchange analysis.
Side effects
- Invalid or unrecognized order enum value returns validation error
- Search string matching no exchanges returns empty exchanges array
- Limit value of zero or negative integer may return empty or error response
- Service unavailability from DefiLlama upstream causes stale or failed response
- Missing required body fields (type, method, bodyType) cause schema validation failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Only what is in known wallets; not a solvency audit.",
"order": "reserves",
"source": "DefiLlama (wallets published by each exchange)",
"exchanges": [
{
"wallets": "https://www.binance.com/en/blog/community/our-commitment-to-transparency-2895840147147652626",
"exchange": "Binance",
"reserves_usd": 177513791205,
"net_flow_7d_usd": -313385238,
"net_flow_24h_usd": -695058369,
"net_flow_30d_usd": 838321112,
"open_interest_usd": 30566285698,
"spot_volume_24h_usd": 14541124724,
"derivatives_volume_24h_usd": 84904610396,
"reserves_excl_own_token_usd": 150250661259
},
{
"wallets": "https://twitter.com/okx/status/1590812545346330624",
"exchange": "OKX",
"reserves_usd": 31771034350,
"net_flow_7d_usd": -862913,
"net_flow_24h_usd": -31768684,
"net_flow_30d_usd": 504825312,
"open_interest_usd": 7956708261,
"spot_volume_24h_usd": 3444758308,
"derivatives_volume_24h_usd": 31547594881,
"reserves_excl_own_token_usd": 30289714450
}
]
}
}Tags
x402
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