Churn revenue impact projector API

Project MRR lost to churn over N months: retained = startMRR * (1 - monthlyChurn)^months, lost = start - retained, plus the annualized churn rate and cumulative % lost. Compounding decay LLMs get wrong. Answers 'how much MRR will churn cost me','what is my annualized churn','how much revenue do I lose in a year'.

Price$0.01per request

MethodPOST

Route/v1/calc/saas-churn-impact

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

saaschurnretentionmrrstartupmetricsforecastcalc

API URLhttps://x402.hexl.dev/v1/calc/saas-churn-impact

Integration docs

Example request

{
  "startingMrr": 50000,
  "monthlyChurnRatePct": 3,
  "months": 12
}

Example response

{
  "retainedMrr": 34692.12,
  "lostMrr": 15307.88,
  "cumulativeRevenueLostPctOfStart": 30.62,
  "annualizedChurnRatePct": 30.62,
  "formula": "retained = startMRR * (1 - monthlyChurn)^months ; lost = start - retained",
  "breakdown": {
    "startingMrr": 50000,
    "monthlyChurnRatePct": 3,
    "months": 12
  }
}

Input schema

{
  "type": "object",
  "required": [
    "startingMrr",
    "monthlyChurnRatePct",
    "months"
  ],
  "properties": {
    "startingMrr": {
      "type": "number",
      "description": "starting MRR (currency)",
      "examples": [
        50000
      ]
    },
    "monthlyChurnRatePct": {
      "type": "number",
      "description": "monthly revenue churn 0-100",
      "examples": [
        3
      ]
    },
    "months": {
      "type": "integer",
      "description": "projection horizon in months",
      "examples": [
        12
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}