STL Analysis
format_stlRead-onlyIdempotent
Extract metadata from an STL file (ASCII or binary).
Returns triangle count, bounding box, surface area, volume,
manifold analysis (watertight, open edges, non-manifold edges),
triangle quality metrics, vertex deduplication count, mean edge
length, minimum bounding sphere, and a noise estimate derived
from planar region fitting.
Payment via x402 (USDC on Base) or card via MPP (Stripe). See format_auto
for payment flow details. Privacy policy: https://caliper.fit/privacy
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| payment | No | Payment proof as a JSON string. Set this when retrying after a payment_required response. For x402: must contain 'transaction' (on-chain tx hash), 'network', and 'priceToken' from the payment_required response. For MPP: must contain 'challenge' and 'payload' from the org.paymentauth/credential flow. Default: null (omit on first call; set only when retrying with payment). | |
| file_b64 | No | Base64-encoded file content. Max 200KB decoded. Use file_url for larger files to avoid consuming model context window budget. Default: null (omit if providing file_url instead). | |
| file_url | No | HTTP/HTTPS URL of the geometry file to analyze. Preferred for large files (over 200KB). The file format is detected from the URL path extension, so the filename parameter is not needed when using file_url. Max 100MB. Default: null (omit if providing file_b64 instead). | |
| filename | No | Original filename with extension (e.g. 'model.stl'). Required for format detection when using file_b64. Not needed when using file_url (format is detected from the URL path). Default: null. |