Twilio

Overview#

The Twilio connector seals Account SID and Auth Token in QuantaVault and proxies Twilio REST API calls for SMS, voice, and the Verify product. Inbound Twilio webhook signatures (X-Twilio-Signature) are verified against the sealed Auth Token before forwarding.

Prerequisites#

• 1A Twilio account with an active phone number
• 2Account SID and Auth Token from the Twilio Console
• 3A QuantaSeal API key

Configuration#

Follow these steps to connect Twilio to QuantaSeal. You can configure integrations via the Admin Console or directly via the API.

1. 1

   In the Twilio Console, copy your Account SID and Auth Token.

2. 2

   Seal credentials: POST /api/v2/vault/seal with credential_type: basic_auth and values: {username: ACCOUNT_SID, password: AUTH_TOKEN}.

3. 3

   Create the integration: POST /api/v2/integrations with system_type: twilio.

Authentication Types#

Twilio uses HTTP Basic auth (Account SID as username, Auth Token as password). Store as basic_auth in QuantaVault. The Auth Token also doubles as the webhook signing secret - store it separately as webhook_secret for inbound webhook verification.

All credential types are sealed in QuantaVault with ML-KEM-768 + AES-256-GCM and wrapped by your tenant AWS KMS CMK before storage. See the Vault API reference for the full list of credential types and seal/unseal endpoints.

Available Operations#

QuantaSeal enforces a default-deny operation policy. Only operations listed in your integration's allowed_operations array will be permitted. Add operations when creating or updating the integration.

Code Example#

Every proxy call returns a HybridCryptoEnvelope - the response is ML-KEM-768 key-encapsulated, AES-256-GCM encrypted, and signed with ML-DSA-65 + HMAC-SHA-512. Verify both signatures before trusting the decrypted payload.

curl -X POST https://api.quantaseal.io/api/v2/proxy/outbound \
  -H "X-API-Key: qs_live_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "integration_id": "int_01HZ9X2K4MNPQRTWILIO000001",
    "operation": "send_sms",
    "payload": {
      "to": "+61412345678",
      "from": "+61498765432",
      "body": "Your QuantaSeal verification code is: 847291. Do not share this code."
    }
  }'

# Response - HybridCryptoEnvelope
{
  "success": true,
  "encrypted": {
    "ciphertext_kem":  "<base64 - 1088 bytes ML-KEM-768>",
    "ciphertext_data": "<base64 - AES-256-GCM encrypted Twilio message SID>",
    "nonce":           "<base64 - 12 bytes>",
    "tenant_id":       "ten_01HZ9X2K4MNPQR5STUVWXYZ00",
    "algorithm":       "ML-KEM-768"
  },
  "signature": {
    "pqc_signature":  "<base64 - ~3309 bytes ML-DSA-65>",
    "hmac_signature": "<base64 - 64 bytes HMAC-SHA-512>",
    "tenant_id":      "ten_01HZ9X2K4MNPQR5STUVWXYZ00",
    "algorithm":      "ML-DSA-65+HMAC-SHA-512"
  },
  "audit_event_id": "aud_01HZ9XABCDEF"
}

Troubleshooting#