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Prove what your AI said. Cryptographically.

One API call wraps every agent decision in a hybrid Ed25519 + ML-DSA-65 post-quantum envelope. Identity, provenance, tamper-evidence, policy state, audit-ready receipt.

Start sealing — from $29/mo See the code
Live API · POST https://api.epochcoreqcs.com/v1/envelope · OpenAPI

Why agent governance needs a stamp

Most AI startups ship outputs with no provenance trail. When the regulator, the courtroom, or the enterprise buyer asks "prove this was what your agent actually said" — they have nothing.

Decision evidence per output

Every response gets identity, provenance, tamper-evidence, and a policy receipt. Not a hash — a hybrid PQ-safe envelope that survives Q-day.

Public verifier, no vendor lock

Any third party can verify with the open verifier at https://chain.epochcoreqcs.com/v1/verify. No proprietary SDK required for verification.

FIPS-aligned, audit-ready

NIST FIPS 204 (ML-DSA-65) + Ed25519 hybrid signatures. Sealed into a WORM chain. Designed to support SEC 17a-4, SOC2 CC7, and FINRA 4370 evidentiary requirements. (Compatibility, not certification — attestation mapping available on request.)

One API call

Drop-in for any LLM or agent decision. No infra to run. Returns a hybrid-signed envelope that anyone can verify.

# Seal an agent decision
curl -X POST https://api.epochcoreqcs.com/v1/envelope \
  -H "x-api-key: $EPOCHCORE_KEY" \
  -H "content-type: application/json" \
  -d '{"agent_id": "your-agent", "decision": {"text": "agent response"}}'

# Response
{
  "envelope_id": "dkap_env_01KRH6ZW5PANQTXG6X68F1K8XN",
  "status": "verified",
  "decision_hash": "sha256:cbbbdcd2…",
  "agent_id": "your-agent",
  "trust": { "pqc_ready": true, "tamper_evidence": true, /* … */ },
  "compliance": { "dkap_stamped": true, "audit_ready": true },
  "receipt": { "verdict": "release_ready", "created_at": "…" }
}

# Anyone can verify the hash, no SDK needed
HASH=$(echo "sha256:cbbbdcd2…" | sed 's/^sha256://')
curl "https://chain.epochcoreqcs.com/v1/verify?hash=$HASH&full=1"

// npm install @epochquantum/envelope
import { envelope, verify } from "@epochquantum/envelope";

const result = await envelope({
  agentId: "your-agent",
  decision: { text: agentResponse },
  apiKey: process.env.EPOCHCORE_KEY,
});

// result.envelope_id, result.decision_hash, result.trust, …

const v = await verify(result.decision_hash);
// v.ok, v.found, v.hash

Source: github.com/QuantumSwarms/envelope-sdk

Pricing

Volume-metered. No setup fee. Cancel anytime (prorated to end of billing period).

Personal
$29 / month
For hobbyists and solo agent builders
  • 10,000 seals / month
  • Community Discord support
  • Open verifier (free · public · included on every tier)
  • Hybrid Ed25519 + ML-DSA-65
Start with Personal →
Pro
$299 / month
For production AI startups
  • 250,000 seals / month
  • Priority verifier (target sub-50ms p95)
  • Slack support
  • Per-tenant chain isolation
  • Webhook on seal events
Start with Pro →
Enterprise
Custom
For regulated industries and channel partners
  • Unlimited seals
  • On-prem verifier appliance
  • Co-marketing + reference customer slot
  • Evidence pack mapped to FedRAMP Moderate audit controls (AU-2, AU-9, AU-11)
  • Direct founder access
Talk to founder →

Request access

Pilots run 30 days, no commitment. Tell us a bit about your use case.

Personal / Pro: we'll reply by email within one business day with an access link. Enterprise: founder-direct call to scope on-prem verifier, FedRAMP evidence pack, and SOC2 mapping.

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