WritersLogic Verifiable AI Agent Hub Mesh Check API
The Mesh Check API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for mesh check.
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curl "https://apis.io/api/v1/apis/writerslogic-com:writerslogic-com-mesh-check-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Mesh Check API
version: 2.0.0
description: Pay-per-call agents settled in USDC on Base via x402. Every response carries a signed provenance envelope.
contact:
name: WritersLogic
url: https://writerslogic.com/agents
email: agents@writerslogic.com
servers:
- url: https://agents.writerslogic.com
tags:
- name: Mesh Check
paths:
/api/v1/mesh-check:
post:
operationId: mesh_check
summary: 'STL mesh check: open edges, non-manifold edges, inverted normals'
description: 'Checks a binary or ASCII STL mesh of up to 4000 triangles for a 3D-printing or CAD agent: open (boundary) edges, edges shared by more than two triangles, inconsistent winding, degenerate and duplicate triangles, normals that disagree with the vertex order, and an inside-out (negative signed volume) closed mesh, with triangle indices as witnesses. Input is base64 of the STL file (up to 200084 bytes). It does not measure wall thickness, repair the mesh, check self-intersections, or know the model units; a pass means closed, manifold, consistently wound and outward-facing, not printable.
Price: 0.005 USDC on Base (x402).'
x-x402-price-usdc: '0.005'
x-x402-amount: '5000'
x-payment-info:
protocols:
- x402
price:
mode: fixed
currency: USD
amount: '0.005'
x-audience: developer
x-sample-url: https://agents.writerslogic.com/api/v1/samples/mesh-check
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- data
properties:
data:
type: string
maxLength: 266780
description: Padded base64 of the STL file, binary or ASCII.
weldTolerance:
type: number
minimum: 0
maximum: 1
description: 'Vertices closer than this (grid-snapped, model units) are treated as the same vertex. Default 0: exact float32 equality.'
example:
data: 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
responses:
'200':
description: Paid result with provenance
content:
application/json:
schema:
type: object
properties:
data:
type: object
properties:
status:
type: string
enum:
- pass
- fail
- unknown
- unsupported
description: 'pass: every rule held. fail: a rule was violated (see witnesses). unknown: the input lacks the evidence to decide. unsupported: outside what this engine covers. Missing evidence is never a pass.'
format:
type: string
enum:
- binary
- ascii
triangles:
type: integer
vertices:
type: integer
description: Distinct vertices after welding.
edges:
type: integer
components:
type: integer
description: Vertex-connected shells.
boundaryEdges:
type: integer
description: Edges used by exactly one triangle (holes).
nonManifoldEdges:
type: integer
description: Edges used by more than two triangles.
inconsistentEdges:
type: integer
description: Edges whose two triangles traverse it in the same direction.
degenerateTriangles:
type: integer
duplicateTriangles:
type: integer
flippedNormals:
type: integer
description: Triangles whose stored normal opposes the right-hand-rule normal.
zeroNormals:
type: integer
closed:
type: boolean
eulerCharacteristic:
anyOf:
- type: integer
- type: 'null'
description: V - E + F.
signedVolume:
anyOf:
- type: number
- type: 'null'
description: Only for a closed mesh; negative means inside-out.
surfaceArea:
anyOf:
- type: number
- type: 'null'
bbox:
anyOf:
- type: object
properties:
min:
type: array
items:
type: number
max:
type: array
items:
type: number
- type: 'null'
notes:
type: array
items:
type: string
witnesses:
type: array
items:
type: object
properties:
ruleId:
type: string
detail:
type: string
path:
type: string
description: JSON pointer or dotted path into the input.
offset:
type: integer
index:
type: integer
expected:
description: What the rule required.
actual:
description: What the input had.
versions:
type: object
description: Every semantic dependency of this answer (engine, tables and their as-of dates, tokenizer, calendar, rounding profile).
limits:
type: array
items:
type: string
deterministic:
type: boolean
description: 'Always true: pure code, no model.'
_provenance:
type: object
description: C2PA-aligned manifest and W3C VC 2.0 (eddsa-jcs-2022) issued by the hub DID; verify at POST /api/v1/verify-provenance
required:
- data
- _provenance
'400':
description: Invalid request (no payment consumed)
content:
application/json:
schema:
type: object
properties:
error:
type: string
code:
type: string
'401':
description: Invalid X-API-KEY
content:
application/json:
schema:
type: object
properties:
error:
type: string
code:
type: string
'402':
description: Payment required or invalid
content:
application/json:
schema:
type: object
description: x402 v2 PaymentRequired (also base64 in the PAYMENT-REQUIRED header)
properties:
x402Version:
type: integer
error:
type: string
code:
type: string
resource:
type: object
accepts:
type: array
items:
type: object
extensions:
type: object
'502':
description: Upstream failure; the payment is released or not settled
content:
application/json:
schema:
type: object
properties:
error:
type: string
code:
type: string
tags:
- Mesh Check
components:
securitySchemes:
x402:
type: apiKey
in: header
name: PAYMENT-SIGNATURE
description: x402 v2 payment payload (base64) sent after a 402 challenge
apiKey:
type: apiKey
in: header
name: X-API-KEY