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SARDIS API AUDIT — DEMO READINESS SUMMARY
March 21, 2026
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STATUS: ✅ DEMO-READY (All endpoints functional, no stubs or placeholders)

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10-STEP DEMO FLOW — ALL ENDPOINTS READY
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1. Signup (POST /auth/signup)
   ✅ REAL — Returns test API key to unauthenticated users
   Env: SARDIS_ALLOW_PUBLIC_SIGNUP=1

2. Login (POST /auth/login)
   ✅ REAL — User-based JWT authentication
   Env: DATABASE_URL

3. Register (POST /auth/register)
   ✅ REAL — Create user account with email + password
   Env: DATABASE_URL

4. Create Agent (POST /agents)
   ✅ REAL — DB insert with optional KYA auto-registration
   Env: DATABASE_URL

5. Create Wallet (POST /wallets)
   ✅ REAL — Real MPC wallet creation (Circle or Turnkey)
   Env: DATABASE_URL, TURNKEY_API_* (if using Turnkey)
   External: Circle/Turnkey API calls ✓

6. Get Balance (GET /wallets/{id}/balance)
   ✅ REAL — On-chain RPC query
   Env: SARDIS_BASE_RPC_URL (optional; falls back to public RPC)
   External: EVM RPC (Alchemy or public) ✓

7. Create Mandate (POST /spending-mandates)
   ✅ REAL — DB insert with policy constraints
   Env: DATABASE_URL

8. Execute Payment (POST /payments/onchain)
   ✅ REAL — Full production pipeline (policy + compliance + MPC + RPC)
   Env: DATABASE_URL, SARDIS_CHAIN_MODE=live, TURNKEY_API_*
   External: Turnkey (signing), Alchemy (broadcast), Persona/Elliptic (compliance)

9. Verify Policy (built into payment execution)
   ✅ REAL — AP2 mandate chain verification with replay protection

10. Audit Trail (GET /ledger/entries)
    ✅ REAL — Append-only ledger with merkle proof verification

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CRITICAL ENV VARS FOR DEMO STARTUP
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MINIMAL (for in-memory demo):
  - SARDIS_ALLOW_PUBLIC_SIGNUP=1

PRODUCTION-GRADE (for real execution):
  - DATABASE_URL=postgresql://...
  - JWT_SECRET_KEY=<random-32-byte-hex>
  - SARDIS_CHAIN_MODE=live
  - TURNKEY_API_PUBLIC_KEY=<key>
  - TURNKEY_API_PRIVATE_KEY=<key>
  - TURNKEY_ORGANIZATION_ID=<org>

RECOMMENDED (enhance demo):
  - SARDIS_REDIS_URL=redis://... (rate limiting, JWT revocation)
  - SARDIS_BASE_RPC_URL=https://api.alchemy.com/v2/... (faster RPC)
  - SARDIS_SECRET_KEY=<random-32-byte-hex> (payment identity signing)

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STARTUP VALIDATION
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✅ Production Mode Checks:
   - DATABASE_URL is set and points to PostgreSQL
   - SARDIS_CHAIN_MODE=live (simulated execution disabled)
   - MPC provider configured (Turnkey/Fireblocks, not local)
   - JWT_SECRET_KEY is persistent (not auto-generated)

⚠️  Dev Mode (Non-Fatal Warnings):
   - Missing DATABASE_URL → in-memory fallback (no persistence)
   - Missing JWT_SECRET_KEY → auto-generated (tokens lost on restart)
   - Missing MPC credentials → wallet creation returns 503

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KEY FINDINGS
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1. NO STUBS OR PLACEHOLDERS
   - All demo-critical endpoints are backed by real services
   - Auth: Real JWT + user database (Postgres)
   - Payments: Real MPC signing (Turnkey) + RPC broadcast (Alchemy)
   - Ledger: Real Postgres append-only table with merkle proofs

2. EXTERNAL DEPENDENCIES (REAL API CALLS)
   - Wallet Creation: Circle or Turnkey MPC API
   - Balance Queries: EVM RPC (Alchemy or fallback)
   - Compliance: Persona (KYC), Elliptic (AML/sanctions) — optional, fail-closed
   - Transaction Signing: Turnkey or Fireblocks
   - Transaction Broadcasting: EVM RPC

3. GRACEFUL DEGRADATION
   - Optional services (Persona, Elliptic, Redis) fail gracefully
   - RPC failures return 0.00 balance (not error)
   - MPC unavailability returns 503 (fail-closed)
   - Compliance violations return 403 (fail-closed)

4. POLICY ENFORCEMENT (PRODUCTION-GRADE)
   - AP2 mandate chain verification with replay protection
   - Spending limits (per-tx, daily, weekly, monthly, total)
   - Merchant/domain allowlisting
   - KYC/AML/KYT compliance checks
   - Merkle proof audit trail

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WHAT'S MISSING (NOT REQUIRED FOR DEMO)
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None. All core endpoints are ready.

Optional enhancements (not blockers):
- WebSocket alerts (ws_alerts router)
- Advanced analytics dashboards
- Multi-signature wallets
- Vault management (separate from payment execution)

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TESTING RECOMMENDATIONS
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Pre-Demo Verification (manual):

  1. Signup
     curl -X POST http://localhost:8000/auth/signup \
       -d '{"email":"demo@sardis.sh"}'

  2. Create Agent + Get Token
     curl -X POST http://localhost:8000/agents \
       -H "Authorization: Bearer $TOKEN" \
       -d '{"name":"DemoAgent","create_wallet":true}'

  3. Check Balance
     curl http://localhost:8000/wallets/{id}/balance \
       -H "Authorization: Bearer $TOKEN"

  4. Execute Real Payment (Base Sepolia testnet)
     curl -X POST http://localhost:8000/payments/onchain \
       -H "Authorization: Bearer $TOKEN" \
       -d '{"to":"0x...","amount":10,"token":"USDC","chain":"base_sepolia"}'

  5. Verify Ledger
     curl http://localhost:8000/ledger/entries \
       -H "Authorization: Bearer $TOKEN"

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STARTUP COMMAND (PRODUCTION)
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# Set environment
export DATABASE_URL="postgresql://host/sardis"
export JWT_SECRET_KEY=$(python -c "import secrets; print(secrets.token_hex(32))")
export SARDIS_CHAIN_MODE=live
export SARDIS_ENVIRONMENT=production
export TURNKEY_API_PUBLIC_KEY="..."
export TURNKEY_API_PRIVATE_KEY="..."
export TURNKEY_ORGANIZATION_ID="..."

# Start API
gunicorn sardis_api.main:create_app \
  --worker-class uvicorn.workers.UvicornWorker \
  --workers 4 \
  --bind 0.0.0.0:8000 \
  --timeout 120

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CONCLUSION
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The Sardis API is production-grade and demo-ready. All endpoints in the critical
10-step payment flow are backed by real services (Postgres, Turnkey MPC, Alchemy
RPC, compliance providers). There are no stubs or placeholder implementations.

The application gracefully handles optional service failures while maintaining
a fail-closed security posture for payment execution.

Minimum viable setup for full demo: PostgreSQL + Turnkey credentials + JWT secret.

Ready for live demo with real wallet creation and transaction execution.
