attestd vs Nen: Which is Better in 2026?
A comprehensive comparison of attestd and Nen covering features, pricing, use cases, and which tool is the right choice for your needs.
⚡ Quick Verdict
Choose attestd if:
- →You want more affordable paid plans (from $19.99/mo)
- →You need a broader feature set (6 features vs 5)
- →You need risk_state: nvd-derived vulnerability classification (none → critical) or supply_chain.compromised: malicious-publish flag independent of cve history
Choose Nen if:
- →You need payload stays ciphertext past tls termination — logs, cdn and proxies see base64 or ml-kem-768 (fips 203) post-quantum key exchange with chacha20-poly1305
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attestd vs Nen: At a Glance
Pricing Comparison: attestd vs Nen
Understanding the pricing differences between attestd and Nen is crucial for making the right choice. Here's how their plans compare side by side.
Nen Pricing
💡 Pricing takeaway: Both attestd and Nen offer free tiers, making it easy to try before you buy. Compare the specific plans to find the best value for your use case.
Feature-by-Feature Comparison
Here's how every feature from attestd and Nen stacks up.
What Makes Each Tool Unique
🔵 Unique to attestd
Features available in attestd but not in Nen:
- ✓risk_state: NVD-derived vulnerability classification (none → critical)
- ✓supply_chain.compromised: malicious-publish flag independent of CVE history
- ✓typosquat: package-name integrity including AI-hallucinated package names
- ✓No code or repository access required
- ✓Python SDK and a documented curl quickstart
- ✓Free tier at 1,000 calls/month with the full response schema
🟣 Unique to Nen
Features available in Nen but not in attestd:
- ✓Payload stays ciphertext past TLS termination — logs, CDN and proxies see base64
- ✓ML-KEM-768 (FIPS 203) post-quantum key exchange with ChaCha20-Poly1305
- ✓Drop-in nenFetch client and withNen server wrapper, about ten lines total
- ✓Mandatory per-request HMAC and replay protection; encrypted SSE streaming
- ✓Open-source SDK with a published protocol spec and threat model
Use Case Recommendations
Best for: attestd
attestd is a software-risk API designed to be called by CI/CD pipelines and by AI coding agents, which is a narrower and more interesting brief than a general vulnerability scanner. One request against a package name and version returns three signals that the company insists are independent by design: risk_state, an NVD-derived vulnerability classification with values from none through critical; supply_chain.compromised, a malicious-publish flag that is deliberately not derived from CVE history, so a package can return no known vulnerabilities and still be flagged as compromised; and typosquat, a package-name integrity check that catches both classic typosquats and names an LLM invented that never existed. That third signal is the one built specifically for the agent era — a coding agent that hallucinates a dependency name will happily install whatever squatter registered it, and a scanner that only scores known-good packages misses the failure mode entirely. The design principle stated throughout is determinism: NVD, CISA KEV and OSV all publish machine-readable data, but none of them yield a single condition a pipeline can branch on without interpretation, so attestd does the normalisation and returns something a script can act on. No repository or code access is required, there is a Python SDK, and the free tier is genuinely usable for evaluation and personal automation.
Ideal use cases:
- •Teams or individuals who need risk_state: nvd-derived vulnerability classification (none → critical)
- •Teams or individuals who need supply_chain.compromised: malicious-publish flag independent of cve history
- •Teams or individuals who need typosquat: package-name integrity including ai-hallucinated package names
- •Teams or individuals who need no code or repository access required
- •Anyone focused on security workflows
- •Anyone focused on api workflows
Best for: Nen
Nen addresses a gap that is not a flaw in TLS so much as the place TLS stops. HTTPS protects a request in transit and does it well, but the moment TLS terminates — at the load balancer, the CDN edge, the serverless runtime — the JSON body sits in plaintext across logs, databases, proxies and every third-party hop. Nen keeps the payload itself encrypted end to end, so the trust boundary moves inward past all of that to the specific code that genuinely needs to read the data. The integration is deliberately small: swap fetch for nenFetch on the client, wrap the route handler with withNen on the server, and the handshake, key rotation, per-request HMAC and replay protection happen underneath, roughly ten lines start to finish. The cryptography is post-quantum by default — ML-KEM-768 key exchange under FIPS 203 with ChaCha20-Poly1305 for the payload — which matters specifically for harvest-now-decrypt-later exposure, since payloads that come to rest as ciphertext in a queue or a database stay protected. Encrypted server-sent-event streaming is supported, along with in-memory, Redis and edge session stores. The site is unusually careful about what it does not claim: it states plainly that the two Nen endpoints necessarily hold plaintext, publishes a threat model and protocol spec, and even links a page arguing that if your only concern is the public transit leg, PQ-TLS already covers you. The SDK is open source with no limits.
Ideal use cases:
- •Teams or individuals who need payload stays ciphertext past tls termination — logs, cdn and proxies see base64
- •Teams or individuals who need ml-kem-768 (fips 203) post-quantum key exchange with chacha20-poly1305
- •Teams or individuals who need drop-in nenfetch client and withnen server wrapper, about ten lines total
- •Teams or individuals who need mandatory per-request hmac and replay protection; encrypted sse streaming
- •Anyone focused on encryption workflows
- •Anyone focused on post-quantum workflows
🔐 Other Security & Privacy Tools to Consider
attestd and Nen aren't the only options. Here are other popular tools in the same space:
Darktrace
AI cybersecurity with autonomous response
CrowdStrike Falcon
AI endpoint security and threat intelligence
Snyk
Developer security with AI vulnerability detection
GitGuardian
Automated secrets detection in code
Wiz
Cloud security with AI risk prioritization
ZeroDrift
Compliance firewall that validates, rewrites or blocks every AI output before it reaches anyone
Is one of these your tool?
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Frequently Asked Questions
Is attestd better than Nen?
It depends on your needs. attestd offers 6 key features including risk_state: NVD-derived vulnerability classification (none → critical) and supply_chain.compromised: malicious-publish flag independent of CVE history, while Nen provides 5 features including Payload stays ciphertext past TLS termination — logs, CDN and proxies see base64 and ML-KEM-768 (FIPS 203) post-quantum key exchange with ChaCha20-Poly1305. attestd uses a freemium model with a free tier, while Nen is freemium with free access available. Choose based on which features and pricing model align with your requirements.
Is attestd cheaper than Nen?
attestd is cheaper, starting at $19.99/month compared to Nen's $79/month. Both tools offer free tiers, so you can try each before committing. Always check the official websites for the most current pricing.
Can I use attestd and Nen together?
Yes, many users combine attestd and Nen in their workflow. attestd excels at risk_state: nvd-derived vulnerability classification (none → critical), while Nen shines with payload stays ciphertext past tls termination — logs, cdn and proxies see base64. Using both allows you to leverage the strengths of each tool, though this means managing two subscriptions — though free tiers can help manage costs.
What's the main difference between attestd and Nen?
While both are security & privacy tools, attestd emphasizes risk_state: nvd-derived vulnerability classification (none → critical), whereas Nen is known for payload stays ciphertext past tls termination — logs, cdn and proxies see base64. The best choice depends on your specific workflow and feature priorities.
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