ManyLives Tools
Exact finance maths: loan repayment and total interest, compound growth with regular contributions, NPV and IRR of cash flows, and ROI with annualised return.
Offering
- Provider
- api.manylives.me
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Financial Analysis
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.manylives.me/paid/calc/finance- MIME type
- application/json
- First seen
- 2026-10-16T01:50:53.972Z
- Last seen
- Tags
- Agents, calc, Finance, tools, Data, utilities, JSON
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.002 USDC
Atomic price: 2000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"payTo": "0xD161874249321F8AE3000C19DdD070e46682f1B3"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "2000",
"payTo": "AmsoCBJg5aE46w8NcXDFtsUEJtjzkeFQnoUmKu3hcyFx"
}
]Observed health
- Status
- Healthy
- Latest latency
- 1302 ms
- Average latency
- 969 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 11 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"const": "GET"
},
"queryParams": {
"type": "object",
"properties": {
"op": {
"type": "string",
"description": "loan, compound, npv, irr or roi (required)",
"examples": [
"loan"
]
},
"principal": {
"type": "string",
"description": "loan/compound: starting amount",
"examples": [
"400000"
]
},
"rate": {
"type": "string",
"description": "annual rate in percent (loan, compound, npv)",
"examples": [
"6"
]
},
"years": {
"type": "string",
"description": "loan/compound/roi: years",
"examples": [
"30"
]
},
"payments_per_year": {
"type": "string",
"description": "loan: default 12"
},
"contribution": {
"type": "string",
"description": "compound: added each period"
},
"periods_per_year": {
"type": "string",
"description": "compound: default 12"
},
"flows": {
"type": "string",
"description": "npv/irr: comma-separated cash flows, first is usually negative"
},
"cost": {
"type": "string",
"description": "roi: amount invested"
},
"value": {
"type": "string",
"description": "roi: final value"
}
},
"required": [
"op"
]
}
},
"required": [
"type",
"method"
]
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"const": "GET",
"type": "string"
},
"queryParams": {
"properties": {
"contribution": {
"description": "compound: added each period",
"type": "string"
},
"cost": {
"description": "roi: amount invested",
"type": "string"
},
"flows": {
"description": "npv/irr: comma-separated cash flows, first is usually negative",
"type": "string"
},
"op": {
"description": "loan, compound, npv, irr or roi (required)",
"examples": [
"loan"
],
"type": "string"
},
"payments_per_year": {
"description": "loan: default 12",
"type": "string"
},
"periods_per_year": {
"description": "compound: default 12",
"type": "string"
},
"principal": {
"description": "loan/compound: starting amount",
"examples": [
"400000"
],
"type": "string"
},
"rate": {
"description": "annual rate in percent (loan, compound, npv)",
"examples": [
"6"
],
"type": "string"
},
"value": {
"description": "roi: final value",
"type": "string"
},
"years": {
"description": "loan/compound/roi: years",
"examples": [
"30"
],
"type": "string"
}
},
"required": [
"op"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"op": {
"type": "string"
},
"payment": {
"type": "number"
},
"total_interest": {
"type": "number"
},
"total_paid": {
"type": "number"
}
},
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}