# Polymathica CFD Simulation Validator v1

> Polymathica CFD Simulation Validator v1 is a paid API for AI agents from api.macaroonnetwork.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).

Validates CFD simulation outputs by analysing convergence, continuity, mass-flow and provenance evidence against declared v1 acceptance criteria, returning measurements, reasons, hashes and limitations.

## Facts

- Endpoint: POST https://api.macaroonnetwork.com/execute/polymathica-cfd-simulation-validator-v1
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymathica-cfd-simulation-validator-v1-6f387481
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ahLg6MeZoFvTmDizX6Pxp

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 polymathica-cfd-simulation-validator-v1-6f387481 -d '<json body>'
```

Example prompt: Can you validate my CFD simulation run — I need you to check the convergence, continuity, and mass-flow evidence against the v1 acceptance criteria and tell me the calculated measurements, any failure reasons, and the content hashes?

## When to prefer this

Choose this endpoint when you need automated, hash-verifiable validation of CFD simulation outputs against the specific Polymathica v1 acceptance criteria, particularly when you need structured reasons and measurements for convergence, continuity, and mass-flow — rather than a general-purpose simulation runner or a formal engineering certification service.

## Known failure modes

- Missing required body fields returns a 400 validation error
- Malformed or unrecognised CFD data format causes processing failure
- Evidence insufficient to assess one or more criteria results in partial results with limitation flags
- Network or payment settlement failure returns a 402 or 5xx error

## How this service works

Analyse supplied CFD convergence, continuity, mass-flow and provenance evidence against declared v1 acceptance criteria. Returns calculated measurements, reasons, hashes and limitations; no formal engineering certification.

## Output

Returns a structured object containing calculated physical measurements (convergence residuals, mass-flow rates, continuity errors), pass/fail reasons keyed to each acceptance criterion, content hashes for provenance traceability, and a list of limitations or caveats. Explicitly not a formal engineering certification.

## 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"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "payload": {
   "checks": [],
   "message": "",
   "timestamp": "",
   "input_hash": "",
   "service_id": "polymathica-cfd-simulation-validator-v1",
   "limitations": [],
   "result_hash": "",
   "checks_failed": [],
   "checks_passed": [],
   "evidence_refs": [],
   "predicate_hash": "",
   "checks_executed": [],
   "report_generated": false,
   "validation_run_id": "",
   "validator_version": "1.0.0",
   "provenance_recorded": false,
   "required_checks_completed": false,
   "validation_evidence_present": false,
   "acceptance_criteria_satisfied": false
  },
  "settled": true,
  "predicate_passed": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymathica-cfd-simulation-validator-v1-6f387481/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.macaroonnetwork.com](https://www.zero.xyz/host/api.macaroonnetwork.com/llms.txt)