Inputs
| Field | Type | Valid domain |
|---|---|---|
| sharesVesting | float | 100 – 10,000 |
| sharePrice | float | 5 – 1,000 |
| annualSalary | float | 50,000 – 600,000 |
| filingStatus | choice | single | married |
| stateTaxRate | float | 0 – 0.133 |
| holdingPeriodYears | int | 1 – 10 |
| diversifyPct | float | 0 – 1 |
| stockGrowthRate | float | -0.1 – 0.15 |
All fields required. Out-of-domain values are rejected with per-field errors — never clamped. Unknown fields are rejected.
Live example — generated from the real engine
Request
POST /api/v1/models/rsu
{
"sharesVesting": 5100,
"sharePrice": 503,
"annualSalary": 325000,
"filingStatus": "single",
"stateTaxRate": 0.07,
"holdingPeriodYears": 6,
"diversifyPct": 0.5,
"stockGrowthRate": 0.02
}Response (chart arrays compacted)
{
"ok": true,
"model": "rsu",
"specVersion": "1.1.0",
"contractUrl": "/api/v1/models/rsu",
"specUrl": "/api/v1/models/rsu/spec",
"inputs": {
"sharesVesting": 5100,
"sharePrice": 503,
"annualSalary": 325000,
"filingStatus": "single",
"stateTaxRate": 0.07,
"holdingPeriodYears": 6,
"diversifyPct": 0.5,
"stockGrowthRate": 0.02
},
"outputs": {
"totalNetProceeds": 4568894.35793115,
"totalTaxPaid": 3522216.995517332,
"yearlyBreakdown": [
{
"year": 1,
"grossProceeds": 1282650,
"federalTax": 468268.5,
"stateTax": 89785.50000000001,
"netProceeds": 724596
},
{
"year": 2,
"grossProceeds": 1308303.0000000002,
"federalTax": 477760.1100000001,
"stateTax": 91581.21000000002,
"netProceeds": 738961.6800000002
},
"… 4 more"
]
},
"sentinels": [],
"assumptions": [
"Implements model spec rsu v1.1.0 (dual-implementation verified)."
],
"facts": [
{
"id": "irs.brackets.single.top-of-10pct.2026",
"label": "Top of 10% ordinary bracket, single (vintage marker for the TY2026 table)",
"value": 12400,
"period": "TY2026",
"source": "IRS TY2026 inflation adjustments (Rev. Proc. 2025-32)"
},
{
"id": "irs.brackets.mfj.top-of-10pct.2026",
"label": "Top of 10% ordinary bracket, MFJ (vintage marker for the TY2026 table)",
"value": 24800,
"period": "TY2026",
"source": "IRS TY2026 inflation adjustments (Rev. Proc. 2025-32)"
}
],
"record": {
"sha256": "b6ec8a98e24fe634c311416ddf311fd6723311d3ee88e3f172b584c1a865338e",
"fields": [
"model",
"specVersion",
"inputs",
"outputs"
],
"howToVerify": "Store this record with any advice or agent output built on these numbers. To verify later: build {model, specVersion, inputs, outputs} from the stored response, serialize as JSON with object keys sorted recursively (no whitespace), and SHA-256 it — a match proves the numbers came from this spec version with these inputs, unaltered."
},
"disclaimer": "Illustrative planning model, not financial advice. Outputs follow the published model spec exactly; read the spec for assumptions and exclusions before relying on any number."
}This example is executed against the production engine when the page builds — it cannot drift from the API's real behavior.