# SyntaxRate API Profitability Analyzer

> SyntaxRate API Profitability Analyzer is a paid API for AI agents from api.syntaxrate.com, paid per call via x402, $0.005000/call, status unknown (last checked 2026-09-14).

Runs Monte Carlo revenue simulation, breakeven analysis, pricing benchmarks, and risk scoring to evaluate the profitability of an x402 API monetization strategy.

## Facts

- Endpoint: POST https://api.syntaxrate.com/analyze
- Price: $0.005000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-syntaxrate-com-c30a57e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eU1111suD3n3pMAarYZwj

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 api-syntaxrate-com-c30a57e3 -d '<json body>'
```

Example prompt: Can you analyze the profitability of my x402 API that charges $0.01 per call, costs me $0.003 per call to run, and I expect around 50,000 calls per month — give me the Monte Carlo revenue simulation, breakeven analysis, pricing benchmark, and risk score?

## When to prefer this

Use this endpoint when you need quantitative financial modeling specifically for x402 per-call API monetization — especially when you want Monte Carlo simulation, breakeven analysis, and risk scoring in a single call rather than building these models manually.

## Known failure modes

- Missing required pricing or cost parameters returns a 400 validation error
- Invalid or negative numeric inputs may cause computation errors
- Very low call volume estimates may result in degenerate simulation outputs
- Payment not included or insufficient USDC balance returns 402 Payment Required

## How this service works

AI agent API profitability calculator with Monte Carlo revenue simulation, breakeven analysis, pricing benchmark, and risk scoring for x402 API monetization.

## Output

Returns a Monte Carlo revenue simulation with percentile outcomes, breakeven analysis showing required call volume, a pricing benchmark comparing against similar APIs, and a risk score indicating financial viability of the monetization strategy.

## Example request

```json
{
 "input": {
  "body": {
   "price": 0.01,
   "agents": 5,
   "retention": 0.85,
   "fixed_cost": 500,
   "calls_per_day": 1000,
   "variable_rate": 0.003
  },
  "type": "api",
  "method": "POST",
  "bodyType": "application/json"
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "agents",
      "calls_per_day",
      "price",
      "retention",
      "fixed_cost",
      "variable_rate"
     ],
     "properties": {
      "price": {
       "type": "number",
       "description": "Price per API call in USD"
      },
      "agents": {
       "type": "integer",
       "description": "Number of active agents"
      },
      "retention": {
       "type": "number",
       "description": "Retention ratio from 0 to 1"
      },
      "fixed_cost": {
       "type": "number",
       "description": "Monthly fixed cost in USD"
      },
      "calls_per_day": {
       "type": "number",
       "description": "Average calls per agent per day"
      },
      "variable_rate": {
       "type": "number",
       "description": "Variable cost rate from 0 to 1"
      }
     }
    },
    "type": {
     "type": "string"
    },
    "method": {
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-syntaxrate-com-c30a57e3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.syntaxrate.com](https://www.zero.xyz/host/api.syntaxrate.com/llms.txt)