The ultimate multi-agent orchestrated CAD analysis and update platform.

tactile3d

System Architecture (Mermaid)

flowchart LR
  %% Client
  subgraph Client["Client: Nextjs + Wallet"]
    U["CAD Engineer"]
    FE["Nextjs Web App"]
    W["Wallet (wagmi + viem)"]
    U --> FE
    W --> FE
  end

  %% Platform API
  subgraph API["Platform API (Spring Boot)"]
    REST[REST Controllers]
    WS[WebSocket Events]
    JOBS[Job Service]
    FILES[File Service]
    MEM[Memory Service]
    EVENTS[Agent Event Service]
    PARTSAPI["/api/parts (x402)"]
  end

  %% Data layer
  subgraph Data["MongoDB"]
    DB[("Collections: users, jobs, results, memories")]
    GRID[("GridFS: CAD files + artifacts")]
  end

  %% Agent Module
  subgraph Agent["Agent Module (FastAPI)"]
    AAPI[Agent API]
    PARSE[PARSE]
    ANALYZE[ANALYZE]
    SUGGEST[SUGGEST]
    VALIDATE[VALIDATE]
    PARTS["Parts Search"]
    X402C["x402 Client"]
  end

  %% External services
  subgraph Ext["External Services"]
    GH[GitHub OAuth]
    FW[Fireworks AI]
    VY[Voyage Embeddings]
    TH[Thesys C1]
    CDP["Coinbase CDP x402"]
  end

  %% Client <-> API
  FE -->|REST| REST
  FE -.->|WebSocket job updates| WS
  FE -->|x402 payment request| REST
  REST <-->|OAuth login| GH

  %% API internals
  REST --> JOBS
  REST --> FILES
  REST --> MEM
  REST --> EVENTS
  JOBS --> DB
  MEM --> DB
  EVENTS --> DB
  FILES --> GRID

  %% Agent orchestration
  REST <-->|start/resume/cancel| AAPI
  AAPI -->|fetch CAD via /api/files| FILES
  AAPI -.->|callbacks: checkpoint/complete/fail| REST
  AAPI --> PARSE --> ANALYZE --> SUGGEST --> VALIDATE

  %% AI + Payments
  MEM -->|embed| VY
  MEM -->|RAG answer| FW
  AAPI -->|DFM LLM assist| FW
  REST -->|UI spec from report| TH
  REST -->|verify/settle payments| CDP
  PARTS -->|GET /api/parts/search| PARTSAPI
  X402C -->|GET /cad + X-PAYMENT| PARTSAPI
  PARTSAPI -->|verify/settle| CDP

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How to Use

1. Export your CAD design as a .step file in Fusion 360.
2. Upload the .step file to the platform.
3. Let the AI agents analyze and critique your design for DFM and performance.
4. Update your design based on the AI's suggestions.
5. Repeat steps 2-4 until your design is optimized.
6. Chat with the AI to get more insights and suggestions.
7. Generate a report of your design's DFM and performance.

Tech Stack

• Frontend: Nextjs (Vercel) + TailwindCSS
• Backend: Spring Boot + MongoDB + GridFS + WebSocket
• AI: FastAPI + PARSE + Fireworks AI + Voyage Embeddings + Thesys C1
• Payments: Coinbase CDP x402
• Authentication: GitHub OAuth

x402 Agent Payments

The CAD agent supports autonomous payments for external x402-protected services using the Coinbase x402 protocol on Base Sepolia testnet (no real funds required).

Features:

• Budget Control - Set spending limit before upload via popup
• Parts Search - Search for screws, bearings, motors during chat
• Automatic Payment - Agent signs x402 payments for premium CAD data

Parts API Endpoints

Endpoint	Auth	Description
GET /api/parts/search?query=...	None	Search parts catalog (free)
GET /api/parts/{partNumber}	None	Get part details (free)
GET /api/parts/{partNumber}/cad	x402	Download CAD (requires payment)

Available MOCK Parts Catalog

Part Number	Name	Price (test USDC)
MC-M3X10-SHCS	M3 x 10mm Socket Head Cap Screw	$0.01
MC-MR63ZZ	MR63ZZ Miniature Ball Bearing	$0.02
NEMA17-42	NEMA 17 Stepper Motor	$0.05
LM8UU	LM8UU Linear Ball Bearing	$0.01

x402 Payment Flow

Agent → GET /api/parts/MC-M3X10-SHCS/cad
     ← 402 Payment Required (price: $0.01 USDC)
Agent → Signs payment with wallet (Base Sepolia)
Agent → GET /cad + X-PAYMENT header
     → Backend verifies via CDP Facilitator API
     → Backend settles payment
     ← 200 OK + CAD data + transaction hash

Setup:

cd agent
pip install -e .
python -m tools.x402_client  # Generate wallet
# Fund at: https://faucet.cdp.coinbase.com/

Add to .env:

X402_AGENT_PRIVATE_KEY=0x...
X402_NETWORK=base-sepolia

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