Actor admission
Declares fixed-window policies on actor classes and returns a committed decision before mailbox enqueue, with idempotent quota consumption.
Platform overview
Rails + Node.js
The commercial performance layer for Solid Objects
Grouped commits, optional ephemeral operations, and materialized projections for Rails and Node.js.
Both open-source cores are MIT licensed, including for commercial and closed-source applications. Pro is the optional proprietary layer for private package access, support, and priority fixes.
Available architecture
Rails + Node.js Pro
Grouped commits
Coalesces concurrent actor writes into fewer database commits, reducing write amplification for hot identities.
Ephemeral operations
Selects in-process, loss-tolerant delivery per call for signals that do not belong in the durable journal.
Materialized projections
Builds read models after durable commits so eligible reads do not compete with actor mailbox work.
Both Pro packages use the same actor classes as their MIT cores. Delivery behavior is selected per call; admission policies are declared on actor classes and checked before mailbox enqueue. Independently reproducible Pro-versus-MIT benchmarks are still being prepared, so this site does not publish unsupported throughput or latency numbers.
Tier comparison
Available and in development
The MIT core is commercially usable. Pro adds private operational machinery.
Pro includes the shipping Rails and Node.js packages. Enterprise sharding remains roadmap work and is shown as in development rather than included.
| Capability | MIT Core Free Any team | Pro $99/mo · $995/yr Available now | Enterprise $269/mo · $2,690/yr In Development |
|---|---|---|---|
| Licensing | |||
| MIT core for personal, commercial, and closed-source use | Included | Included | Included |
| Proprietary Rails and Node.js performance extensions | Not included | Included | In Development |
| Private Rails and Node.js package access | Not included | Included | In Development |
| One-legal-entity package licence | Not included | Included | In Development |
| Actor runtime | |||
| Addressable actors activated on demand | Included | Included | Included |
| Durable state committed per turn | Included | Included | Included |
| Ordered delivery, fencing, reminders, and effects | Included | Included | Included |
| Performance layer | |||
| Fixed-window actor admission before mailbox enqueue Useful for: rate limits and per-actor quotas | Not included | Included | In Development |
| Grouped commits gathered over a 5 ms window by default Useful for: absorbing bursty write traffic | Not included | Included | In Development |
| Optional ephemeral operations selected per call Useful for: progress updates and live signals | Not included | Included | In Development |
| Materialized projections maintained after durable commits Useful for: dashboards, feeds, and list views | Not included | Included | In Development |
| Roadmap | |||
| Distributed in-memory sharding | Not included | Not included | In Development |
| Requests routed to the process holding the actor | Not included | Not included | In Development |
No plan promises exactly-once execution. Distributed sharding is not implemented or sold through checkout today.
Private delivery
Billing, licensing, and private Rails and Node package access in one account.
An active Pro subscription provisions a software licence and one private registry credential for the Rails and Node.js packages. The dashboard provides the exact Bundler, npm, and pnpm installation steps.