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Technology · head to head

Nagios XI vs Restate

Nagios XI logo

Nagios XI

Technology

Enterprise-grade monitoring solution with advanced visualization and reporting

From
Free
Free plan
Yes
Full reviewWebsite
Restate logo

Restate

Developer Tools

Durable execution engine in Rust with a free tier and low-latency workflows

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Nagios XI free Edition caps at 7 nodes or 100 services, whichever limit is hit first; Restate the runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nagios XI and Restate actually diverge.

Attributes where Nagios XI and Restate differ
AttributeNagios XIRestate
Pricing modelone-timePer month by durable action count
PlatformsWebLinux, macOS, Web
CategoryTechnologyDeveloper Tools

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Nagios XI

Nothing recorded that Restate does not also cover.

Only in Restate

  • Durable execution
  • Virtual objects
  • Single binary runtime
  • Multi-language SDKs
  • Workflows and sagas
  • Restate Cloud

What people use each for

The jobs each tool is most often brought in to do.

Nagios XI

  • Monitoring servers, networks, and IoT devices for status changesnot Restate
  • Detecting infrastructure problems before they cause outagesnot Restate
  • Creating customizable dashboards for real-time IT visibilitynot Restate
  • Tracking SLA compliance and generating capacity planning reportsnot Restate

Restate

  • Payment or order flows where a crash between two external API calls must not double-charge or lose the ordernot Nagios XI
  • AI agent loops that call tools over minutes or hours and must survive a deployment mid-runnot Nagios XI
  • Replacing hand-rolled retry, idempotency key and outbox code across a set of microservicesnot Nagios XI
  • A small team that wants durable workflows without operating a Temporal cluster and its databasenot Nagios XI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Nagios XI

  • Free Edition caps at 7 nodes or 100 services, whichever limit is hit first
  • Standard Edition is licensed per node count, starting at $2,595 for 100 nodes and rising to $14,995 for 1,000 nodes
  • Enterprise Edition, which adds capacity planning and SLA reporting, is sold as an add-on starting at $4,690 for 100 nodes on top of the base license
  • Sitewide Edition for large distributed environments has no published price and requires contacting sales

Restate

  • The runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.
  • Restate Cloud jumps from a free fifty thousand actions straight to 300 US dollars a month for twenty million, so a workload sitting at a few hundred thousand actions pays enterprise-shaped money for hobby-shaped volume.
  • It is a young project against Temporal’s established base, so hiring engineers who already know it is unrealistic and the answer to most questions is in the docs rather than on Stack Overflow.
  • The programming model requires structuring code around durable handlers and virtual objects, which is a genuine rewrite for existing services rather than a library you add.
  • The single-binary simplicity that makes small deployments cheap also means fewer operational knobs at very large scale than a system designed as separable components.

Pricing, plan by plan

Nagios XI

Free
  • Free EditionFree
    • 7 nodes OR 100 services limit
    • Self-supported only
  • Standard 100-Node$2595/perpetual
    • 100 nodes
    • First year includes support and upgrades
  • Standard 500-Node$8295/perpetual
    • 500 nodes
    • First year includes support and upgrades
  • Standard 1000-Node$14995/perpetual
    • 1,000 nodes
    • First year includes support and upgrades

Restate

Free
  • FreeFree
    • Fifty thousand durable actions per month
    • No credit card required
    • Community support
  • Starter$300/month
    • Twenty million actions per month
    • Two hundred actions per second, bursting to one thousand
    • Twenty GB storage
  • Pro$1000/month
    • Fifty million actions per month
    • Five hundred actions per second, bursting to two thousand
    • Fifty GB storage
  • Enterprise$undefined/year
    • Negotiated volume
    • Twenty-four seven P0 support
    • 99.99 per cent SLA

Which should you pick?

Choose Nagios XI if

  • You want to start without paying.
Nagios XI review

Choose Restate if

  • You need durable execution.
  • You want to start without paying.
  • You work on Linux, macOS, Web.
  • You also want virtual objects.
Restate review

Questions people ask

Is Nagios XI or Restate better?
Neither clearly leads. Nagios XI starts at Free and Restate at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nagios XI or Restate?
Nagios XI starts at Free and Restate at Free.
Does Nagios XI or Restate run on more platforms?
Nagios XI runs on Web. Restate runs on Linux, macOS, Web.
Can I use Nagios XI for free?
Both have a free tier, so you can try either at no cost before committing.
What is Nagios XI best used for?
Nagios XI is most often used for monitoring servers, networks, and iot devices for status changes, detecting infrastructure problems before they cause outages, creating customizable dashboards for real-time it visibility, tracking sla compliance and generating capacity planning reports. Of those, monitoring servers, networks, and iot devices for status changes and detecting infrastructure problems before they cause outages are not what Restate is typically brought in for.
What can Nagios XI do that Restate cannot?
Restate covers Durable execution, Virtual objects, Single binary runtime, Multi-language SDKs.

Answered from the vendors’ own pages

Nagios XI: What is Nagios XI's pricing model?

Nagios XI uses perpetual licensing with one-time purchase costs based on node count, ranging from $2,595 for 100 nodes to $14,995 for 1,000 nodes.

Source
Restate: Is Restate open source?

The SDKs are MIT. The runtime is under a Business Source Licence, which permits self-hosting but not offering it as a competing service.

Nagios XI: Is there a free version of Nagios XI?

Yes, Nagios XI Free Edition is available at no cost with a limit of 7 nodes or 100 services, whichever is reached first.

Source
Restate: How does it compare with Temporal?

Same problem, different shape: one Rust binary with embedded storage instead of a server plus database plus workers, and lower per-step latency.

Nagios XI: What is included with Nagios XI licensing?

Initial licenses include one year of free version upgrades, up to 10 support cases, and support portal access. Each license permits three installations: production, backup/failover, and testing/development.

Source
Restate: Is there a free tier?

Yes, fifty thousand durable actions a month on Restate Cloud with no card required.

Restate: Which languages are supported?

TypeScript, Java, Kotlin, Go, Python and Rust.

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