AI Tool Atlas

CodingDocumented overviewLast checked Oct 1, 2026

NexArt: Pricing, Features & Best Use Cases

SDK and attestation service that turns AI executions into cryptographically sealed, independently verifiable Certified Execution Records.

NexArt homepage screenshot, coding AI tool

Our take: Choose NexArt if your team must prove what an AI system did, using signed, timestamped records anyone can verify without an account.

Main limitation: Paid certification starts at $6,000 per year and needs SDK or CLI integration.

By the AI Tool Atlas editors. Based on the vendor's official documentation; we have not tested this product hands-on. What “documented overview” means

Is NexArt right for you?

Choose NexArt if your team must prove what an AI system did, using signed, timestamped records anyone can verify without an account. Based on the vendor's documentation, not on a hands-on test.

Best for: Teams running AI agents in regulated industries

Also a good fit for

  • Compliance and audit functions
  • Developers who need defensible AI execution logs

Consider another tool if paid plans start at $6,000 per year, aimed at teams rather than individuals

Or if

  • Quotas are enforced per account and shared across API keys
  • Requires SDK or CLI integration into your own code

NexArt pricing and usage limits

Prices checked Oct 1, 2026 on the official US pricing page. Official pricing ↗ Prices and limits change often.

Vendor pricing page re-checked automatically 12 days ago: no changes detected.

NexArt pricing page with plans and prices — screenshot of the coding AI tool, Oct 1, 2026
The official NexArt pricing page as we saw it. nexart.io, captured Oct 1, 2026

Free access and trial conditions

Free tier: 100 certified runs per month.

Paid plans: what changes as you upgrade

Free web

Free source (opens in a new tab)

Month

For: Evaluation and CI

Limits

  • 100 certified runs/month
  • 2 active API keys
1 more
  • Hard cap, no overage

Includes

  • Full SDK and CLI
  • Shared attestation node

API included

Pro web

$6,000/yr source (opens in a new tab)

Year, annual commitment

For: Startups in production

Limits

  • 5,000 certified runs/month
  • 5 API keys

Includes

  • Independent certification
  • Commercial CodeMode
2 more
  • Priority attestation
  • Email support

API included

Team web

$18,000/yr source (opens in a new tab)

Year, annual commitment

For: Multi-product teams

Limits

  • 50,000 certified runs/month
  • 10 API keys

Includes

  • Multiple environments
  • Priority queue
1 more
  • Team key management

API included

Enterprise web

Custom pricing source (opens in a new tab)

Year, annual commitment

For: Regulated industries

Limits

  • Custom limits by contract

Includes

  • Dedicated attestation node
  • Audit retention
1 more
  • SLAs

API included

Usage caps, credits and extra costs

Hard caps, no overage billing.

What is NexArt, and how does it work?

NexArt records the inputs, parameters, outputs and context of an AI execution at runtime and seals them into a Certified Execution Record (CER): a portable, tamper-evident evidence package with hashes, an attestation signature and an external timestamp. Records can be verified by third parties without a NexArt account, and sensitive inputs and outputs can be kept private while still being verifiable. It is aimed at engineering, compliance and audit teams that need to prove what an AI system actually did when a decision is disputed, audited or investigated. Integration is via SDKs, a CLI and connectors for LangChain and n8n; local record generation is free, and paid plans cover independent certification through the NexArt attestation node.

NexArt homepage — screenshot of the coding AI tool, Oct 1, 2026
NexArt's official site: how the product presents itself. nexart.io, captured Oct 1, 2026

What you provide and what you get back

How NexArt works: what you provide, where it runs and what you get backYOU PROVIDEYour inputAI execution inputs and parametersModel outputsContext metadataCODINGNexArtWeb, APIfrom $6,000/yr (Pro)free tier availableaccount requiredchecked Oct 1, 2026YOU GET BACKThe resultCertified Execution RecordAttestation signaturePublic verification linkinput → NexArt → output · from the vendor's own pages, no hands-on test unless stated
What you give NexArt and what comes back, from its documentation

You provide

  • AI execution inputs and parameters
  • Model outputs
  • Context metadata

You get back

  • Certified Execution Record
  • Attestation signature
  • Public verification link

Where you can use it

Platforms
Web, API
Account
Required
Signature
Ed25519
Quota
100 / 5,000 / 50,000 runs per month
API keys
2 / 5 / 10
Operator
Artnames Ltd (UK)

Best use cases for NexArt

Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.

Producing audit evidence for AI-driven decisions in regulated workflows

Who
Compliance and audit teams
You provide
Logged AI run data
Expected result
Tamper-evident record for auditors
Plan needed
Pro or higher for independent certification
Limitation
Needs integration source (opens in a new tab)

Responding to customer disputes about AI-generated outcomes

Who
Support teams handling disputes
You provide
Execution of a disputed AI outcome
Expected result
Verifiable proof of what the system returned
Plan needed
Free for 100 runs
Limitation
Quota shared across keys source (opens in a new tab)

Incident investigation of what an agent received and returned

Who
Engineers investigating incidents
You provide
Agent run inputs and outputs
Expected result
Hash-committed evidence
Plan needed
Free to test
Limitation
Local records need paid certification for third-party trust source (opens in a new tab)

What NexArt does, and where it stops

NexArt homepage — screenshot of the coding AI tool, Oct 1, 2026
Feature overview on the official site. nexart.io, captured Oct 1, 2026

Certified Execution Records with input/output hash commitments

Hashes inputs and outputs into a portable record. Proves what ran.

Access: All plansLimit: Requires SDK or CLI. source (opens in a new tab)

Ed25519 attestation signatures and external timestamps

Signs records with Ed25519 and adds an external timestamp. Makes tampering detectable.

Access: Independent attestation on paid plansLimit: Free uses shared node. source (opens in a new tab)

Public verification at verify.nexart.io without an account

Lets anyone verify a record at verify.nexart.io. Auditors need no account.

Access: All plansLimit: Verifies integrity, not model correctness. source (opens in a new tab)

Confidential execution mode that keeps raw data private

Keeps raw data private while still verifiable. Protects sensitive content.

Access: Documented in confidential modeLimit: Details are in docs. source (opens in a new tab)

Pros, cons and deal-breakers

Reasons to choose NexArt

Check before paying for NexArt

How to use NexArt for certifying AI executions

Set up NexArt

  1. Create a free account and API key.
  2. Install the NexArt SDK or CLI.
  3. Wrap your AI call to record inputs and outputs.
  4. Choose Free or a paid plan.

Example: certifying AI executions

  1. Run an AI call through the SDK.
  2. Generate a Certified Execution Record.
  3. Send it for certification.
  4. Open the verification link.

Review and export the result

  1. Verify at verify.nexart.io.
  2. Check monthly run usage.

NexArt integrations and API

NexArt pricing page with plans and prices — screenshot of the coding AI tool, Oct 1, 2026
Plan comparison on the official pricing page. nexart.io, captured Oct 1, 2026

Native integrations and export formats

Export: Certified Execution Record

API access and separate billing

NexArt has no public API in its official documentation. Quotas shared across keys. API documentation ↗

Privacy, data use and commercial rights

Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.

How your inputs and outputs are handled

Hash commitments; confidential mode keeps raw data private.

Commercial use and plan restrictions

Enterprise adds audit retention.

Controls for business users

  • Independent key governance

Other tools to consider instead of NexArt

"Better suited" is based on documented features and pricing, not on a head-to-head test.

n8n: better suited to

Make: better suited to

Zapier: better suited to

Alternatives
AlternativeWhen to choose itPricingLimitation
n8n——
Make——
Zapier——

Explore NexArt further

NexArt pricing, plan by planEvery plan with USD prices, limits and what is free.Best NexArt alternativesTools for the same job, by need and starting price.Best AI coding toolsOur picks in this category, compared by price and free tiers.

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    NexArt FAQ

    What is a certified run?

    One Certified Execution Record processed by the attestation node and returned with a verifiable proof. source (opens in a new tab)

    Do I pay to execute AI calls?

    No. Execution is free; you pay for independent certification. source (opens in a new tab)

    What if I exceed my run quota?

    Plans have hard caps, so there are no surprise overage bills. source (opens in a new tab)

    Can others verify a record without an account?

    Yes, at verify.nexart.io. source (opens in a new tab)

    Sources and review methodology

    Official sources and verification dates

    Not verified: monthly price; data retention; training use.

    How we documented and maintain this page

    Every fact about NexArt above comes from the 3 official pages listed here, last compared on Oct 1, 2026; we have not run NexArt ourselves, so it has no editorial score. How we check and re-check pages.

    Article updated Oct 10, 2026; prices checked Oct 1, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error