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Cybersecurity · head to head

HashiCorp Boundary vs PartyKit

HashiCorp Boundary logo

HashiCorp Boundary

Cybersecurity

Identity-aware session broker for infrastructure access without distributing credentials

From
Free
Free plan
Yes
Full reviewWebsite
P

PartyKit

Developer Tools

Platform for building and deploying realtime multiplayer servers on the edge

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: HashiCorp Boundary hashiCorp was acquired by IBM in February 2025 and Enterprise licensing now runs through IBM Passport Advantage; IBM has already retired HCP Vault Secrets, so Boundary's roadmap depends on IBM portfolio decisions rather than HashiCorp's own product strategy.; PartyKit documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
  • They diverge on capability: HashiCorp Boundary covers Identity-based access, PartyKit covers Stateful edge servers.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which HashiCorp Boundary and PartyKit actually diverge.

Attributes where HashiCorp Boundary and PartyKit differ
AttributeHashiCorp BoundaryPartyKit
Pricing modelOpen source, no licence feefreemium
PlatformsLinux, macOS, Windows, Webweb, api
CategoryCybersecurityDeveloper 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 HashiCorp Boundary

  • Identity-based access
  • Just-in-time credentials
  • Dynamic host catalogues
  • Session recording
  • Transparent sessions
  • Multi-hop workers
  • Audit logging
  • Terraform provider

Only in PartyKit

  • Stateful edge servers
  • WebSocket-first API
  • CRDT library compatibility
  • Framework integrations
  • Global edge deployment
  • Custom domains

What people use each for

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

HashiCorp Boundary

  • A platform team replacing shared SSH keys and a bastion host so that leavers lose access the moment they are removed from the identity providernot PartyKit
  • Granting contractors time-boxed database access without ever issuing them a credential they could keepnot PartyKit
  • An estate where autoscaling replaces hosts continuously and a static access list is always out of datenot PartyKit
  • Producing session recordings as evidence for an audit that requires proof of who touched production and what they rannot PartyKit

PartyKit

  • Multiplayer collaborative appsnot HashiCorp Boundary
  • Realtime AI agent backendsnot HashiCorp Boundary
  • Live cursors and presencenot HashiCorp Boundary
  • Collaborative whiteboards and documentsnot HashiCorp Boundary

Where each one falls short

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

HashiCorp Boundary

  • HashiCorp was acquired by IBM in February 2025 and Enterprise licensing now runs through IBM Passport Advantage; IBM has already retired HCP Vault Secrets, so Boundary's roadmap depends on IBM portfolio decisions rather than HashiCorp's own product strategy.
  • Enterprise pricing is not published anywhere, and the features most organisations actually need for compliance, notably session recording, are Enterprise only, so the free community edition is rarely the version you end up buying.
  • It solves access to infrastructure, not to applications; browser-based internal tools, SaaS admin consoles and APIs need a separate control, so Boundary is one component of a zero-trust programme rather than the whole thing.
  • Running it yourself means operating controllers, worker nodes and a Postgres database in a highly available configuration, and if that control plane is down nobody can reach production, which makes it a new critical dependency.
  • It is materially easier to adopt if you already run Vault and Terraform; teams without that ecosystem face a steeper learning curve than a device-based mesh product like Tailscale, for a similar access outcome.

PartyKit

  • Documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
  • Commercial free tier requires deploying to the user's own Cloudflare account, adding setup complexity.
  • Storage on the free Individual plan clears every 24 hours, limiting it to prototyping rather than persistent production data.
  • Smaller ecosystem and community than more established realtime infrastructure providers.

Pricing, plan by plan

HashiCorp Boundary

Free
  • Boundary Community EditionFree
    • MPL 2.0 open source
    • Self-hosted controllers and workers
    • Identity-based target access
  • Boundary Enterprise$undefined/year
    • Session recording and playback
    • Multi-hop and transparent sessions
    • Multi-tenancy via scopes

PartyKit

Free
  • IndividualFree
    • Up to 10 live projects
    • Deploy to the global edge platform
    • Storage clears every 24 hours
  • CommercialFree
    • Unlimited projects
    • Custom domains
    • Runs on your own Cloudflare account; pay only Cloudflare usage

Which should you pick?

Choose HashiCorp Boundary if

  • You need identity-based access.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Web.
  • You also want just-in-time credentials.
HashiCorp Boundary review

Choose PartyKit if

  • You need stateful edge servers.
  • You want to start without paying.
  • You work on web, api.
  • You also want websocket-first api.
PartyKit review

Questions people ask

Is HashiCorp Boundary or PartyKit better?
Neither clearly leads. HashiCorp Boundary starts at Free and PartyKit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HashiCorp Boundary or PartyKit?
HashiCorp Boundary starts at Free and PartyKit at Free.
Does HashiCorp Boundary or PartyKit run on more platforms?
HashiCorp Boundary runs on Linux, macOS, Windows, Web. PartyKit runs on web, api.
Can I use HashiCorp Boundary for free?
Both have a free tier, so you can try either at no cost before committing.
What is HashiCorp Boundary best used for?
HashiCorp Boundary is most often used for a platform team replacing shared ssh keys and a bastion host so that leavers lose access the moment they are removed from the identity provider, granting contractors time-boxed database access without ever issuing them a credential they could keep, an estate where autoscaling replaces hosts continuously and a static access list is always out of date, producing session recordings as evidence for an audit that requires proof of who touched production and what they ran. Of those, a platform team replacing shared ssh keys and a bastion host so that leavers lose access the moment they are removed from the identity provider and granting contractors time-boxed database access without ever issuing them a credential they could keep are not what PartyKit is typically brought in for.
What can HashiCorp Boundary do that PartyKit cannot?
HashiCorp Boundary covers Identity-based access, Just-in-time credentials, Dynamic host catalogues, Session recording. PartyKit covers Stateful edge servers, WebSocket-first API, CRDT library compatibility, Framework integrations.

Answered from the vendors’ own pages

HashiCorp Boundary: Is Boundary open source?

The community edition is, under MPL 2.0. Boundary Enterprise is commercial and is now sold through IBM Passport Advantage.

PartyKit: How much does PartyKit cost?

PartyKit is completely free. Both the Individual and Commercial plans have no upfront costs.

Source
HashiCorp Boundary: Does it replace a VPN?

For infrastructure access, largely yes. It grants a session to a specific target rather than putting the user on a network, but it does not cover browser-based internal applications.

PartyKit: What is PartyKit's Individual plan?

The Individual plan is free and includes deployment to a global edge platform, support for up to 10 live projects, and is suitable for small projects. Storage is cleared every 24 hours.

Source
HashiCorp Boundary: What does Boundary Enterprise cost?

HashiCorp does not publish Boundary pricing. It is quoted, and since the IBM acquisition it is transacted on IBM licensing paper.

PartyKit: What is PartyKit's Commercial plan?

The Commercial plan is free but requires deploying to your own Cloudflare account. It includes custom domains, unlimited projects, and you pay only your Cloudflare usage costs.

Source
HashiCorp Boundary: Do I need Vault to use it?

No, but the just-in-time credential brokering that makes Boundary worthwhile depends on Vault or an equivalent secrets store.

PartyKit: Can I upgrade from Individual to Commercial plan?

Yes, both plans are free but offer different feature sets. The Commercial plan removes project restrictions but requires managing your own Cloudflare infrastructure.

Source
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