Pricing Math
MRR, ARR, customer lifetime, annualised churn and LTV from customers, ARPU and monthly churn, with optional CAC payback.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://pricing-math.x402tookit.com/subscription",
"description": "MRR, ARR, customer lifetime, annualised churn and LTV from customers, ARPU and monthly churn, with optional CAC payback.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cac": 200,
"arpu": 50,
"customers": 200,
"grossMarginPct": 80,
"monthlyChurnPct": 5
}
},
"output": {
"arr": 120000,
"ltv": 800,
"mrr": 10000,
"asOf": "2026-10-11T23:36:14.081Z",
"source": "computed locally (LTV = ARPU x gross margin / monthly churn)",
"reasons": [
"Average lifetime is 1 / monthly churn; annual churn compounds as 1 - (1 - c)^12.",
"LTV:CAC is 4; the common rule of thumb is 3 or more. CAC pays back in 5 months."
],
"summary": "MRR 10000, ARR 120000, LTV 800 per customer over about 20 months.",
"verdict": "LTV_TO_CAC_AT_OR_ABOVE_3",
"degraded": false,
"ltvToCac": 4,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"expansion or contraction revenue, discounts and annual-plan timing",
"whether churn is constant over a customer's life (it usually is not)",
"…1 more"
],
"grossMarginPct": 80,
"cacPaybackMonths": 5,
"annualisedChurnPct": 45.964,
"averageLifetimeMonths": 20
}
},
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact",
"network": "solana",
"mimeType": "application/json",
"resource": "https://pricing-math.x402tookit.com/subscription",
"description": "MRR, ARR, customer lifetime, annualised churn and LTV from customers, ARPU and monthly churn, with optional CAC payback.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cac": 200,
"arpu": 50,
"customers": 200,
"grossMarginPct": 80,
"monthlyChurnPct": 5
}
},
"output": {
"arr": 120000,
"ltv": 800,
"mrr": 10000,
"asOf": "2026-10-11T23:36:14.081Z",
"source": "computed locally (LTV = ARPU x gross margin / monthly churn)",
"reasons": [
"Average lifetime is 1 / monthly churn; annual churn compounds as 1 - (1 - c)^12.",
"LTV:CAC is 4; the common rule of thumb is 3 or more. CAC pays back in 5 months."
],
"summary": "MRR 10000, ARR 120000, LTV 800 per customer over about 20 months.",
"verdict": "LTV_TO_CAC_AT_OR_ABOVE_3",
"degraded": false,
"ltvToCac": 4,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"expansion or contraction revenue, discounts and annual-plan timing",
"whether churn is constant over a customer's life (it usually is not)",
"…1 more"
],
"grossMarginPct": 80,
"cacPaybackMonths": 5,
"annualisedChurnPct": 45.964,
"averageLifetimeMonths": 20
}
},
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact",
"network": "polygon",
"mimeType": "application/json",
"resource": "https://pricing-math.x402tookit.com/subscription",
"description": "MRR, ARR, customer lifetime, annualised churn and LTV from customers, ARPU and monthly churn, with optional CAC payback.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cac": 200,
"arpu": 50,
"customers": 200,
"grossMarginPct": 80,
"monthlyChurnPct": 5
}
},
"output": {
"arr": 120000,
"ltv": 800,
"mrr": 10000,
"asOf": "2026-10-11T23:36:14.081Z",
"source": "computed locally (LTV = ARPU x gross margin / monthly churn)",
"reasons": [
"Average lifetime is 1 / monthly churn; annual churn compounds as 1 - (1 - c)^12.",
"LTV:CAC is 4; the common rule of thumb is 3 or more. CAC pays back in 5 months."
],
"summary": "MRR 10000, ARR 120000, LTV 800 per customer over about 20 months.",
"verdict": "LTV_TO_CAC_AT_OR_ABOVE_3",
"degraded": false,
"ltvToCac": 4,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"expansion or contraction revenue, discounts and annual-plan timing",
"whether churn is constant over a customer's life (it usually is not)",
"…1 more"
],
"grossMarginPct": 80,
"cacPaybackMonths": 5,
"annualisedChurnPct": 45.964,
"averageLifetimeMonths": 20
}
},
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
}
],
"x402Version": 1,
"alsoAvailable": {
"llms": "https://pricing-math.x402tookit.com/llms.txt",
"catalog": "https://pricing-math.x402tookit.com/catalog",
"message": "Pricing Math has 9 pay-per-call endpoints (Markup and margin, break-even, discount stacking, tiers, price rounding, bundles, MRR and fee-inclusive pricing.), from $0.02 a call. See the full menu and send your agents our way.",
"openapi": "https://pricing-math.x402tookit.com/openapi.json",
"related": [
{
"url": "https://pricing-math.x402tookit.com/tax-split",
"path": "/tax-split",
"what": "Split a tax-inclusive price into net and tax, or add tax to a net price, for a sales tax…",
"price": "$0.02"
},
{
"url": "https://pricing-math.x402tookit.com/break-even",
"path": "/break-even",
"what": "Break-even units and revenue from fixed costs, price and variable cost per unit, with an…",
"price": "$0.02"
},
{
"url": "https://pricing-math.x402tookit.com/bundle-price",
"path": "/bundle-price",
"what": "Bundle price, savings and bundle margin from item prices plus either a bundle discount pe…",
"price": "$0.02"
}
]
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.02 USDC on Base to 0xb531…2DBDa. The signed payment is good for 5 minutes.
- Paid to
- 0xb531…2DBDa
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 20000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- DUPiup…eEm8s
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xb531…2DBDa
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xb531…2DBDa
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"amount": "20000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"amount": "20000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"amount": "20000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cac": 200,
"arpu": 50,
"customers": 200,
"grossMarginPct": 80,
"monthlyChurnPct": 5
}
},
"output": {
"type": "json",
"example": {
"arr": 120000,
"ltv": 800,
"mrr": 10000,
"asOf": "2026-10-11T23:36:14.081Z",
"source": "computed locally (LTV = ARPU x gross margin / monthly churn)",
"reasons": [
"Average lifetime is 1 / monthly churn; annual churn compounds as 1 - (1 - c)^12.",
"LTV:CAC is 4; the common rule of thumb is 3 or more. CAC pays back in 5 months."
],
"summary": "MRR 10000, ARR 120000, LTV 800 per customer over about 20 months.",
"verdict": "LTV_TO_CAC_AT_OR_ABOVE_3",
"degraded": false,
"ltvToCac": 4,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"expansion or contraction revenue, discounts and annual-plan timing",
"whether churn is constant over a customer's life (it usually is not)",
"…1 more"
],
"grossMarginPct": 80,
"cacPaybackMonths": 5,
"annualisedChurnPct": 45.964,
"averageLifetimeMonths": 20
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"customers",
"arpu",
"monthlyChurnPct"
],
"properties": {
"cac": {
"type": "number",
"description": "Customer acquisition cost, for LTV:CAC and payback"
},
"arpu": {
"type": "number",
"description": "Average monthly revenue per customer"
},
"customers": {
"type": "number",
"description": "Current paying customers"
},
"grossMarginPct": {
"type": "number",
"description": "Gross margin percent applied to LTV (default 100)"
},
"monthlyChurnPct": {
"type": "number",
"description": "Monthly customer churn, percent (above 0, up to 100)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"arr": {
"type": [
"null",
"number"
]
},
"ltv": {
"type": [
"null",
"number"
]
},
"mrr": {
"type": [
"null",
"number"
]
},
"asOf": {
"type": [
"null",
"string"
]
},
"source": {
"type": [
"null",
"string"
]
},
"reasons": {
"type": [
"array",
"null"
],
"items": {
"type": "string"
}
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"ltvToCac": {
"type": [
"null",
"number"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"notChecked": {
"type": [
"array",
"null"
],
"items": {
"type": "string"
}
},
"grossMarginPct": {
"type": [
"null",
"number"
]
},
"cacPaybackMonths": {
"type": [
"null",
"number"
]
},
"annualisedChurnPct": {
"type": [
"null",
"number"
]
},
"averageLifetimeMonths": {
"type": [
"null",
"number"
]
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-20 20:34Z
- Last indexed by Roundhouse
- 2026-10-22 19:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-20 23:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Pricing Math and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Pricing%20Math' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://pricing-math.x402tookit.com/subscription, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.