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Subscription LTV, LTV:CAC & Churn Sensitivity Calculator
x402
Subscription LTV, LTV:CAC & Churn Sensitivity Calculator is a paid API for AI agents from x402-niche-briefs.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Computes deterministic SaaS/DTC subscription LTV, LTV:CAC ratio, CAC payback period, and churn reduction sensitivity given monthly price, gross margin, churn rate, and CAC.
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic SaaS & DTC replenishment subscription LTV:CAC and payback calculator. Pass ?monthly_price_usd=29&gross_margin_pct=80&monthly_churn_pct=6.5&cac_usd=95. Returns expected subscriber tenure, gross-margin LTV, LTV:CAC ratio, CAC payback months, health verdict, and LTV dollar lift from reducing monthly churn by 1.5 points.
Output
Returns a JSON object containing: echoed inputs, computed metrics (monthly gross profit per subscriber, expected lifetime months, gross revenue LTV, gross margin LTV, LTV:CAC ratio, CAC payback months, benchmark health verdict), and churn sensitivity analysis showing the new gross margin LTV and dollar LTV gain per customer if monthly churn drops by 1.5 percentage points.
Example use cases
SaaS unit economics health check
“Run the unit economics for my SaaS: $49/month price, 72% gross margin, 4.2% monthly churn, and $180 CAC — is our LTV:CAC healthy and how fast do we pay back acquisition costs?”
DTC replenishment box LTV benchmark
“I run a $35/month DTC supplement subscription with 65% gross margin, 8% monthly churn, and $60 CAC — what's my gross margin LTV and how does the LTV:CAC ratio benchmark?”
Churn reduction ROI analysis
“Our subscription costs $19/month, gross margin is 85%, current monthly churn is 9%, and CAC is $75 — how much extra LTV per customer would we get if we cut churn by 1.5 percentage points?”
Technical details
Endpoint
GEThttps://x402-niche-briefs.fly.dev/v1/subscription-ltv-churn-calc?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, deterministic, formula-based LTV and unit economics calculation for a subscription business — especially when you want the churn sensitivity analysis baked in. It's ideal for SaaS or DTC replenishment models where you have simple monthly recurring pricing, a known gross margin, and a CAC figure. Prefer this over building your own spreadsheet logic or calling an LLM for math when you need reproducible, benchmarked results with a health verdict.
Side effects
- Missing required query parameters (monthly_price_usd, gross_margin_pct, monthly_churn_pct, cac_usd) returns an error
- Churn percentage outside valid range (0.1–99.9) may cause computation errors or rejected input
- Non-numeric string values for numeric fields will fail validation
- Payment failure via x402 protocol will block the response
- Gross margin over 100 or below 0 is invalid and likely rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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