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Agent Quant – Percent Change Calculator
x402
Agent Quant – Percent Change Calculator is a paid API for AI agents from agent-quant.annushka1190.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Computes the percentage change between two numeric values for use in trading and portfolio analysis workflows.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pure quant math for AI trading agents: percent change, position sizing, rough liquidation price, DCA schedule, APR/APY. No market data feeds, no API keys. Pay-per-request USDC via x402 on Base and Solana.
Output
Returns a JSON object with ok: true and the computed percentage change value, representing how much the new value differs from the old value as a percentage (positive for gains, negative for losses).
Example use cases
Trade return calculation
“My entry price was $1.82 and my exit price is $2.31 — what's the percentage gain on that trade?”
Portfolio drawdown measurement
“My portfolio was worth $85,000 at the start of the month and it's now at $76,200 — what's the percent drawdown?”
Crypto price move tracking
“ETH was at $3,200 yesterday and it's at $2,950 today — what percent did it drop?”
Technical details
Endpoint
POSThttps://agent-quant.annushka1190.workers.dev/v1/pct-changeWhen to prefer
Choose this endpoint when you need lightweight, serverless percent change math with no API key setup, no market data dependency, and pay-per-request USDC micropayment billing. Ideal for AI trading agents that need pure arithmetic on values they already have, without subscribing to a full quant data service.
Side effects
- Missing required body fields (old/new values) — returns validation error
- Division by zero if old value is zero — may return error or undefined result
- Non-numeric input values — schema validation rejection
- Network timeout on the Cloudflare Workers edge — transient 5xx
- x402 payment not completed or USDC insufficient — payment-required error before computation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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