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SignalHarness DeFi APR/APY Converter
x402
SignalHarness DeFi APR/APY Converter is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).
Converts between APR (Annual Percentage Rate) and APY (Annual Percentage Yield) for DeFi financial calculations, given a natural-language or structured request.
Price / call$0.005
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object containing the converted APR or APY value, any warnings about the input (e.g. ambiguity or assumptions made), an evidence scope field indicating the data came from caller-supplied input, and a service receipt with payment confirmation details including payment ID, network, amount, and a SHA-256 result hash for verification.
Example use cases
Comparing DeFi lending pool yields
“I'm looking at two DeFi protocols — one advertises 18% APR compounded daily and the other shows 19.5% APY. Can you convert the APR to APY so I can tell which one actually gives me a better return?”
Yield farming rate normalization
“My yield farming dashboard shows an 80% APR with hourly compounding. What's the actual APY so I know what I'd realistically earn over a year?”
Stablecoin savings rate comparison
“One stablecoin vault offers 6.2% APY and another offers 6% APR compounded monthly — convert that APR to APY so I can figure out which savings option pays more.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/defi_apr_apy_convert/invokeWhen to prefer
Choose this endpoint when you need to convert between APR and APY in DeFi or crypto finance contexts and want a natural-language interface rather than doing the math manually. It handles edge cases, compounding frequency nuances, and flags ambiguous inputs with warnings. Ideal for agents comparing yields across protocols that report rates differently.
Side effects
- Ambiguous or unparseable input string — returns warnings field with clarification needed
- Missing compounding frequency — service may assume a default and flag a warning
- Rate value out of realistic range — may return warnings about suspicious inputs
- Malformed JSON or request too short (minLength: 2) — request rejected
- Payment failure on x402 protocol — endpoint returns 402 before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| apr_apy_request | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Rates are mathematical inputs, not provider offers."
],
"service_id": "defi_apr_apy_convert",
"evidence_scope": "caller_supplied_data",
"apr_apy_conversion": "{\"compounds_per_year\":12,\"input_rate_percent\":\"5\",\"mode\":\"apr_to_apy\",\"output_rate_percent\":\"5.116189788173\"}"
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "defi_apr_apy_convert",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "5000",
"resultSha256": "917b6ba6ace9cc4dbdcc25eb5e105263b2e9a41b3bb74b46dc3a27442df5163b",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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