Pricing: Certification Plans and API Access

Running AI is easy. Defending it later is the hard part. NexArt pricing gives you independently verifiable execution evidence. Execution is free; independent certification is what you pay for.

What changes when a run is independently certified

An uncertified run is a log entry. A certified run is a tamper-evident artifact: inputs, outputs, parameters, and context bound by SHA-256 and countersigned by an independent attestation node. The Certified Execution Record can be verified by anyone, with no account, at verify.nexart.io.

What you are paying for

You pay for certified runs against the canonical attestation node, key management, retention, and audit-ready evidence. The SDK, CLI, local CER generation, and independent verification are always free.

Plans

Free, $0

100 certified runs per month. Up to 2 active API keys. Shared attestation node. Intended for evaluation and CI.

Pro, $6,000 per year ($600 per month)

5,000 certified runs per month. Up to 5 active API keys. Commercial CodeMode usage. Priority attestation node access. Email support.

Pro+ / Team, $18,000 per year ($1,800 per month)

50,000 certified runs per month. Up to 10 active API keys. Multiple environments. Priority queue.

Enterprise, from $50,000 per year

Custom limits by contract. Private or dedicated attestation node option. Audit retention. Independent key governance and version guarantees. SLAs.

Account-level enforcement

Quota is enforced at the account level, not per API key. API keys exist for environment separation and rotation. You can rotate, revoke, and provision keys without affecting your monthly certified-run allowance.

What we never charge for

Not sure which plan fits?

Book a focused technical walkthrough. We will look at your workflow, your audit needs, and the volume of certified runs you actually require.

Book a Proof Walkthrough · Quickstart · What is a CER