# Cloud World Model Simulation Accuracy & Cost Validator

> Cloud World Model Simulation Accuracy & Cost Validator is a paid API for AI agents from www.cloudworldmodel.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Runs combined cost and performance accuracy checks on a cloud simulation and returns an overall validity flag plus per-validator results.

## Facts

- Endpoint: GET https://www.cloudworldmodel.ai/api/simulations/857848a5-a28e-4dfa-aa2e-0a72cf999328/validate-accuracy
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cloud-world-model-simulation-accuracy-cost-validator-de04cf16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BhqOVJlu74Z4SoevjleSD

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 cloud-world-model-simulation-accuracy-cost-validator-de04cf16
```

Example prompt: Can you run the accuracy and cost validation checks on simulation 857848a5-a28e-4dfa-aa2e-0a72cf999328 and tell me whether it passes overall, plus what each individual validator says about cost and performance?

## When to prefer this

Use this endpoint after advancing a cloud simulation (via timestep or RL training steps) to confirm that cost and performance metrics are within acceptable bounds before making infrastructure decisions. Prefer this over manual inspection when you need a structured, programmatic pass/fail signal with per-category breakdowns.

## Known failure modes

- Simulation ID not found — returns 404 or error if the simulation UUID does not exist
- Payment not authorized — returns 402 if x402 micro-payment is missing or invalid
- Simulation not in a validatable state — may return error if simulation has not advanced far enough
- Malformed request body — returns 400 if required fields like type, method, or bodyType are missing
- Thresholds not configured — validation may return incomplete results if simulation lacks defined thresholds

## How this service works

Run combined cost and performance accuracy checks; returns overallValid and per-validator results.

## Output

Returns a JSON object with 'overallValid' (boolean indicating whether all checks passed), 'checked' (boolean), 'cost' (per-validator cost check results), 'performance' (per-validator performance check results), and 'thresholds' (the threshold values used for comparison).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "cost": {
       "type": "object"
      },
      "checked": {
       "type": "boolean"
      },
      "thresholds": {
       "type": "object"
      },
      "performance": {
       "type": "object"
      },
      "overallValid": {
       "type": "boolean"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cloud-world-model-simulation-accuracy-cost-validator-de04cf16/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.cloudworldmodel.ai](https://www.zero.xyz/host/www.cloudworldmodel.ai/llms.txt)