# CAPI2 Momentum Foundry – Parametric Sculptural Vessel Generator

> CAPI2 Momentum Foundry – Parametric Sculptural Vessel Generator is a paid API for AI agents from capi2-foundry.vandurmedries.workers.dev, paid per call via x402, $4.9/call, status unknown (last checked 2026-10-11).

Generates parametric sculptural vessel designs based on height, diameter, twist, and sway parameters, delivered after x402 micropayment settlement.

## Facts

- Endpoint: POST https://capi2-foundry.vandurmedries.workers.dev/v1/products/parametric-sculptural-vessel/run?utm_source=zero.xyz
- Price: $4.9/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/capi2-momentum-foundry-parametric-sculptural-vessel-generator-621ce7d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vQjp5DwpN6esVlEQmXs_s

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 capi2-momentum-foundry-parametric-sculptural-vessel-generator-621ce7d2 -d '<json body>'
```

Example prompt: Generate a parametric sculptural vessel that's 140mm tall and 80mm wide, with 1.5 twist turns and a sway of 0.15 — I want something elegant and spiraling.

## When to prefer this

Choose this endpoint when you need a programmatically generated parametric sculptural vessel design with precise millimetre-scale dimensional controls (height, diameter, twist turns, and centre sway), especially in workflows where micropayment-gated creative outputs via x402 are acceptable. Prefer this over generic CAD or 3D modeling APIs when you specifically want a sculptural/vessel aesthetic with twist-and-sway parameterization rather than freeform mesh generation.

## Known failure modes

- Payment not settled via x402 — returns 402 Payment Required before delivering result
- Invalid parameter ranges — height outside 50–180mm, diameter outside 30–120mm, twist outside 0.5–2.5, or sway outside 0–0.25 result in validation errors
- Missing required parameters — request rejected with schema validation error
- Worker downtime or Cloudflare infrastructure error — returns 5xx
- Duplicate receipt or payment replay — receipt verification may fail

## How this service works

Paid agent utilities delivered after verified x402 settlement.

## Output

A JSON response containing the generated vessel design result object, a product ID, creation timestamp, and a signed delivery receipt that includes the payer address, receipt UUID, delivery timestamp, input and result SHA256 hashes, the atomic USDC amount charged, and a signature hash for verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "sway": {
   "type": "number",
   "maximum": 0.25,
   "minimum": 0,
   "description": "Relative centre offset"
  },
  "heightMm": {
   "type": "number",
   "maximum": 180,
   "minimum": 50,
   "description": "Height in millimetres"
  },
  "diameterMm": {
   "type": "number",
   "maximum": 120,
   "minimum": 30,
   "description": "Width in millimetres"
  },
  "twistTurns": {
   "type": "number",
   "maximum": 2.5,
   "minimum": 0.5,
   "description": "Twist turns"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {},
  "createdAt": "2026-09-23T00:00:00.000Z",
  "productId": "parametric-sculptural-vessel",
  "deliveryReceipt": {
   "payer": "0x0000000000000000000000000000000000000000",
   "productId": "parametric-sculptural-vessel",
   "receiptId": "00000000-0000-4000-8000-000000000000",
   "deliveredAt": "2026-09-23T00:00:00.000Z",
   "inputSha256": "example-input-sha256",
   "amountAtomic": "4900000",
   "resultSha256": "example-result-sha256",
   "signatureSha256": "example-signature-sha256"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/capi2-momentum-foundry-parametric-sculptural-vessel-generator-621ce7d2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from capi2-foundry.vandurmedries.workers.dev](https://www.zero.xyz/host/capi2-foundry.vandurmedries.workers.dev/llms.txt)