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CAPI2 Momentum Foundry – Parametric Hirth Dial Generator
x402
CAPI2 Momentum Foundry – Parametric Hirth Dial Generator is a paid API for AI agents from capi2-foundry.vandurmedries.workers.dev, paid per call via x402, $3.9/call, status unknown (last checked 2026-10-10).
Generates parametric design specifications for a Hirth joint (serrated coupling) dial given body dimensions, tooth count, and amplitude.
Price / call$3.9
Success—
StatusUnknown
How this service works
Paid agent utilities delivered after verified x402 settlement.
Output
Returns a JSON object containing the computed Hirth dial design result under the 'result' key, a creation timestamp, the product ID ('parametric-hirth-dial'), and a delivery receipt that includes payer address, receipt UUID, delivery timestamp, input and result SHA-256 hashes, the amount charged in atomic USDC units, and a signature hash for verification.
Example use cases
3D-printable rotary indexing dial
“I'm designing a 3D-printable rotary detent knob — can you compute Hirth joint parameters for a 20 mm diameter body, 8 mm tall, with 12 positions and 1.2 mm tooth amplitude?”
Precision instrument turret coupling
“I need the Hirth coupling geometry for a precision optical turret: 60 mm outer diameter, 15 mm height, 32 indexing positions, and a 2 mm tooth amplitude.”
Compact camera click-stop mechanism
“Design a Hirth dial for a compact click-stop camera grip dial — 10 mm diameter, 4 mm body height, 6 positions, and 1.2 mm amplitude.”
Technical details
Endpoint
POSThttps://capi2-foundry.vandurmedries.workers.dev/v1/products/parametric-hirth-dial/run?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need programmatically generated Hirth joint coupling geometry (tooth profiles, indexing parameters) for a specific set of physical dimensions and position counts, especially in automated CAD pipelines, agent-driven design workflows, or manufacturing specification generation where a verified, receipted result is required.
Side effects
- heightMm out of range (4–30 mm) returns validation error
- diameterMm out of range (10–80 mm) returns validation error
- positions out of range (3–32) returns validation error
- amplitudeMm out of range (1.2–4 mm) returns validation error
- Payment not settled via x402 returns 402 Payment Required
- Malformed JSON body returns 400 Bad Request
- Service unavailable on Workers runtime returns 503
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| heightMm | number | Body height in millimetres |
| positions | number | Indexing positions |
| diameterMm | number | Outer diameter in millimetres |
| amplitudeMm | number | Tooth amplitude in millimetres |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"createdAt": "2026-09-23T00:00:00.000Z",
"productId": "parametric-hirth-dial",
"deliveryReceipt": {
"payer": "0x0000000000000000000000000000000000000000",
"productId": "parametric-hirth-dial",
"receiptId": "00000000-0000-4000-8000-000000000000",
"deliveredAt": "2026-09-23T00:00:00.000Z",
"inputSha256": "example-input-sha256",
"amountAtomic": "3900000",
"resultSha256": "example-result-sha256",
"signatureSha256": "example-signature-sha256"
}
}
}Tags
x402
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