Immutable cryptographic audit trails for AI-generated outbound emails
When autonomous AI agents send emails on your behalf, prove what was sent, why it was generated, and which prompt triggered it with tamper-proof SHA-256 provenance headers and Ed25519 signatures. Includes 6,000 free monthly emails.
Live Agent Provenance Inspector
Simulate cryptographic SHA-256 audit trails and Ed25519 signature binding across autonomous agent triggers.
Production Deployment Complete: v2.4.1 (Clean 0 Errors)
Automated release summary generated following 100% test pass on main branch.
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855call_deploy_notify_982147f83b1657ff1fc53b92dc18148a1d65dfc2d4b1fa3d677284addd200126d9069sig_ed25519_9d81a4ef882bc1947e301d0a5197822fb142a5bc7719f9Four layers of cryptographic proof for autonomous dispatch
SHA-256 Prompt Fingerprinting
Every agent send binds a cryptographic SHA-256 digest of the triggering prompt and system context, preventing unverified prompt injection claims.
Tool Call ID Binding
Directly links the email envelope to the autonomous agent’s unique tool call identifier, establishing an unbroken execution chain.
Tamper-Proof Envelope Signatures
Outbound MIME bodies and recipient headers are cryptographically signed at ingestion, proving zero payload tampering in the delivery relay.
Instant Enterprise Compliance
Provides security and compliance officers with complete, exportable provenance records resolving the AI agent accountability gap.
Drop-in provenance tracking across modern agent stacks
import { SadaSend } from 'sadasend';
const sadasend = new SadaSend({ apiKey: process.env.SADASEND_API_KEY! });
// Dispatch with complete agent provenance attribution
const result = await sadasend.emails.send({
from: 'alerts@yourdomain.com',
to: 'compliance@client.com',
subject: 'Automated Security Audit Report',
html: '<p>Attached: Monthly vulnerability remediations verified by agent.</p>',
provenance: {
agentName: 'claude-code-cli/v1.2',
prompt: userPromptText, // Automatically hashed to SHA-256 in flight
toolCallId: 'call_audit_98124',
metadata: {
framework: 'claude-code',
executionCycle: 'nightly-ci-eval',
},
},
});
console.log('Dispatched with cryptographic provenance:', result.provenanceDigest);Frequently asked questions about agent provenance
Give your autonomous agents accountable, tamper-proof email delivery
Start free with 6,000 emails every month. Full cryptographic provenance headers, SpendGuard \$0 floor, and Dual-DKIM signing included.