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ERC-4626 Vault Reader
x402
ERC-4626 Vault Reader is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-18).
Reads on-chain ERC-4626 tokenized vault data (Morpho, Yearn v3, Euler, sDAI, etc.) returning underlying asset, total assets, shares, price per share, and approximate USD TVL.
Price / call$0.004
Success—
StatusUnknown
How this service works
Read any ERC-4626 tokenized vault (Morpho, Yearn v3, Euler, Fluid, sDAI...) on-chain: underlying asset, total assets, shares outstanding, price per share and approximate TVL in USD.
Output
Returns a JSON object with the vault name, symbol, the underlying asset (address, symbol, decimals), total assets held, total shares outstanding, price per share (values above 1.0 indicate accrued yield), and an approximate TVL in USD, plus a note explaining the price-per-share interpretation.
Example use cases
Monitor sDAI vault yield
“Check the sDAI vault at 0x83F20F44975D03b1b09e64809B757c47f942BEeA on Ethereum — what's the price per share and total assets right now?”
Compare Morpho vault TVLs
“Fetch the on-chain stats for the Morpho vault at 0x1234abcd...5678 on Base — I need the TVL in USD, shares outstanding, and price per share.”
Verify Yearn v3 vault metrics
“Pull the full ERC-4626 data for the Yearn v3 vault at 0xAbCd...EfGh on Arbitrum — give me the underlying asset, total assets, and how much yield it has generated since inception.”
Technical details
Endpoint
POSThttps://api.vextorium.com/vault-4626-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time on-chain ERC-4626 vault metrics (TVL, price per share, shares, underlying asset) for any major ERC-4626-compatible protocol such as Morpho, Yearn v3, Euler, Fluid, or sDAI across Ethereum, Base, Arbitrum, Optimism, or Polygon. Prefer this over DeFi aggregator APIs when you need trustless, directly on-chain data for a specific vault contract address rather than aggregated or lagged protocol-level summaries.
Side effects
- Invalid or non-ERC-4626 contract address returns null fields or an error
- Unsupported network (outside base, ethereum, arbitrum, optimism, polygon) causes validation failure
- Contract address on wrong network returns empty or incorrect data
- RPC node unavailability may cause transient fetch failures
- Vault with no liquidity or newly deployed vault may show zero total assets
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| red | string | |
| vault | string | Vault contract address |
Output
Schema · Response
{
"type": "json",
"example": {
"red": "ethereum",
"nota": "Precio por participación > 1 = el vault ha generado rendimiento desde su creación (o empezó así).",
"vault": "0x83F20F44975D03b1b09e64809B757c47f942BEeA",
"activo": {
"simbolo": "DAI",
"decimales": 18,
"direccion": "0x6B175474E89094C44Da98b954EedeAC495271d0F"
},
"nombre": "Savings Dai",
"simbolo": "sDAI",
"tvl_usd_aprox": 164442216,
"activos_totales": 164505714.886556,
"participaciones": 139264625.634588,
"precio_por_participacion": 1.1812455183
}
}Tags
x402
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