# NovaPath Scope-Change Quote Calculator

> NovaPath Scope-Change Quote Calculator is a paid API for AI agents from instructional-decision-engine-x402.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-31).

Calculates a draft scope-change quote and delivery-day estimate from effort, rate, costs, and capacity inputs, returning itemized arithmetic and an approval checklist without modifying contracts or sending quotes.

## Facts

- Endpoint: POST https://instructional-decision-engine-x402.vercel.app/operations/scope-change?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/novapath-scope-change-quote-calculator-3cc941fc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g_pK5LflmcVYHVSMed-YX

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability novapath-scope-change-quote-calculator-3cc941fc -d '<json body>'
```

Example prompt: Can you draft a scope-change quote for 900 additional minutes of work at $150/hour (15000 cents), with $20000 in external costs, a 15% contingency, and 480 available minutes per day? I want the itemized breakdown and approval checklist.

## When to prefer this

Choose this endpoint when you need a fast, deterministic arithmetic estimate for a scope change — especially when you want itemized cost components plus a delivery timeline in one call, without triggering any contract modifications or client-facing communications. Prefer this over manual calculation or spreadsheet tools when the output needs to feed an approval workflow or checklist. Not suited for sending quotes or modifying live contracts.

## Known failure modes

- Missing required fields returns a validation error
- availableMinutesPerDay of 0 is rejected (minimum is 1)
- Values exceeding maximum bounds (e.g. externalCostCents > 1,000,000,000) return a 400 error
- Non-integer inputs for integer fields cause schema validation failure
- Contingency percentage above 100 is rejected

## How this service works

Calculate a draft scope-change quote and delivery-day estimate from bounded effort, rate, costs and capacity. Returns itemized arithmetic and an approval checklist; does not change contracts or send quotes.

## Output

Returns an itemized arithmetic breakdown of the scope-change cost (labor, external costs, contingency) and a delivery-day estimate based on available daily capacity, along with an approval checklist. Does not send quotes or modify any contracts — output is read-only and advisory.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "contingencyPct": {
   "type": "integer",
   "maximum": 100,
   "minimum": 0
  },
  "hourlyRateCents": {
   "type": "integer",
   "maximum": 1000000,
   "minimum": 0
  },
  "additionalMinutes": {
   "type": "integer",
   "maximum": 1000000,
   "minimum": 0
  },
  "externalCostCents": {
   "type": "integer",
   "maximum": 1000000000,
   "minimum": 0
  },
  "availableMinutesPerDay": {
   "type": "integer",
   "maximum": 1440,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/novapath-scope-change-quote-calculator-3cc941fc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from instructional-decision-engine-x402.vercel.app](https://www.zero.xyz/host/instructional-decision-engine-x402.vercel.app/llms.txt)