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Mark Position Value
x402
Mark Position Value is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Computes the dollar value of an equity position by marking it to a specified price using local arithmetic, returning deterministic JSON.
Price / call$0.001
Success—
StatusUnknown
How this service works
Mark a position to a given price for equity snapshots. Call when portfolio marks without a live exchange feed in the tool itself. Returns position value at mark as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
Returns deterministic JSON containing the computed position value (size × mark price) at the specified mark, with no reliance on live market data, external APIs, or storage. Advisory output only.
Example use cases
Equity snapshot portfolio mark
“I have 500 shares and I want to mark them at a price of 192 — what's the total position value for my portfolio snapshot?”
Risk exposure check at target price
“If I'm holding 1000 shares and I want to see my exposure at a mark price of 75, what would the position be worth?”
P&L scenario at hypothetical price
“Run the math on a 300-share position valued at a mark price of 210 so I can see what it comes out to.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/position-valueWhen to prefer
Use this endpoint when you need a fast, deterministic, local calculation of an equity position's value at a specific mark price — especially when no live exchange feed is available. Ideal for portfolio snapshot tools, offline risk calculations, or any workflow requiring reproducible mark-to-price math without external dependencies.
Side effects
- Missing or invalid size field returns an error
- Missing or non-integer price field returns an error
- Negative or zero size/price may produce unexpected results
- Payment failure via x402 prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| size | number | Input field: size. |
| price | integer | Input field: price. |
Output
Schema · Response
{
"type": "json",
"example": {
"size": 2.5,
"price": 40,
"value": 100,
"schema": "delx/util-position-value/v1"
}
}Tags
x402
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