# FractalAI CBOM Seal — Post-Quantum Cryptographic Bill of Materials Sealing

> FractalAI CBOM Seal — Post-Quantum Cryptographic Bill of Materials Sealing is a paid API for AI agents from fractalai.net.co, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-13).

Accepts a Cryptographic Bill of Materials (CBOM) and returns a post-quantum signed, drand-randomness-anchored seal (Dilithium-2/ML-DSA-44) plus an additive ML-DSA-65 served signature for offline verification.

## Facts

- Endpoint: POST https://fractalai.net.co/api/x402/seal-cbom?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fractalai-cbom-seal-post-quantum-cryptographic-bill-of-materials-1ceeb7d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PxcMLEi7sxCMvzGqDPd2a

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fractalai-cbom-seal-post-quantum-cryptographic-bill-of-materials-1ceeb7d2 -d '<json body>'
```

Example prompt: Seal my project's cryptographic bill of materials — issuer is 'AcmeCorp', subject is 'acme-payment-sdk v2.1.0' — with a post-quantum Dilithium signature anchored to drand randomness so I can prove it hasn't been tampered with.

## When to prefer this

Choose this endpoint when you need a cryptographically verifiable, post-quantum-signed attestation of a Cryptographic Bill of Materials (CBOM) that is anchored to external randomness (drand) for tamper evidence. It is specifically suited for software supply chain compliance, NIST PQC transition documentation, or any workflow requiring Dilithium (ML-DSA) signatures rather than classical ECDSA/RSA. Prefer it over generic signing APIs when dual-algorithm attestation (ML-DSA-44 + ML-DSA-65) and offline re-verifiability are required.

## Known failure modes

- Missing or malformed CBOM input — endpoint cannot compute cbom_hash, returns 400
- Payment failure or insufficient USDC balance — x402 payment not settled, seal not issued
- Invalid issuer or subject fields — missing required claim fields cause rejection
- drand beacon unreachable — randomness anchor cannot be fetched, seal generation blocked
- PQC node signing failure — Rust node error prevents Dilithium signature issuance
- Duplicate or replayed CBOM hash — may cause idempotency conflicts if seal_id already exists

## How this service works

The first AI-native Layer 1 blockchain built from scratch in Rust. Post-quantum cryptography (CRYSTALS-Dilithium), Proof of Fractal Work consensus, WASM smart contracts, and 460+ RPC endpoints. Mine FRAC tokens with fractal analysis instead of hash puzzles.

## Output

Returns a JSON object containing: (1) a 'seal' object with the re-verifiable .cbomseal including the canonical claim (cbom_hash, issuer, subject, crypto_asset_count, drand_round, drand_randomness, sealed_at, algorithm), a base64 Dilithium-2/ML-DSA-44 signature from the Rust PQC node, the public key, and a seal_id; (2) a 'served_signature' object with an additive ML-DSA-65 signature over the same claim for offline verification; (3) an optional 'readiness' breakdown counting quantum-vulnerable, PQC, symmetric/hash, and unknown crypto assets; (4) a 'verify_drand_at' URL to independently check the drand round; (5) a payment settlement receipt.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "seal": {
   "seal_id": "…"
  },
  "served_signature": {
   "algorithm": "ml-dsa-65"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fractalai-cbom-seal-post-quantum-cryptographic-bill-of-materials-1ceeb7d2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fractalai.net.co](https://www.zero.xyz/host/fractalai.net.co/llms.txt)