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Stainless vs Liveblocks

Stainless logo

Stainless

Software

Generates client SDKs, API docs, and MCP servers from an OpenAPI spec

From
Free
Rated
-
Full reviewWebsite
Liveblocks logo

Liveblocks

Software

Realtime collaboration infrastructure for building multiplayer features

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Stainless starter and Pro plan prices are not published and require contacting the company.; Liveblocks on the Free plan, each metered feature has a hard cap and simply pauses when exceeded rather than allowing overage.
  • They diverge on capability: Stainless covers SDK generation, Liveblocks covers Realtime presence and cursors.

Where they differ

Only the attributes on which Stainless and Liveblocks actually diverge.

Attributes where Stainless and Liveblocks differ
AttributeStainlessLiveblocks

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), platforms (web, api), user rating (Not yet rated), category (Unknown).

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 Stainless

  • SDK generation
  • MCP server generation
  • Docs site generation
  • Webhooks and streaming support
  • Automated unit tests
  • Git integration

Only in Liveblocks

  • Realtime presence and cursors
  • Comments
  • Version history
  • Custom notifications
  • SSO and SOC 2
  • Management API

What people use each for

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

Stainless

  • Generating typed SDKs for a public APInot Liveblocks
  • Producing an MCP server from an existing OpenAPI specnot Liveblocks
  • Building an API documentation site alongside client librariesnot Liveblocks
  • Giving open-source APIs a free SDK generation pathnot Liveblocks

Liveblocks

  • Adding live cursors and presence to a collaborative editornot Stainless
  • Building threaded comments on documents or designsnot Stainless
  • Sending realtime notifications tied to collaborative actionsnot Stainless
  • Restoring previous versions of collaborative contentnot Stainless

Where each one falls short

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

Stainless

  • Starter and Pro plan prices are not published and require contacting the company.
  • The free plan caps APIs at 25 endpoints, which excludes larger production APIs.
  • Overage charges apply per SDK/endpoint/month once limits are exceeded, which can make costs unpredictable at scale.

Liveblocks

  • On the Free plan, each metered feature has a hard cap and simply pauses when exceeded rather than allowing overage.
  • The jump from Pro ($30/month) to Team (starting at $600/month) is steep for teams that outgrow Pro but don't need full Team scale.
  • Multi-region hosting and SCIM provisioning are Enterprise-only and require custom pricing.

Pricing, plan by plan

Stainless

Free
  • FreeFree
    • Up to 5 generators (SDKs, docs, or MCP servers)
    • 5 seats
    • APIs with 25 or fewer endpoints
  • Starter$undefined/mo
    • Unlimited generators
    • Expanded seats
    • Private SDKs of any size
  • Pro$undefined/mo
    • Custom enterprise features and pricing
  • Enterprise$undefined/mo
    • Dedicated support
    • SOC 2 compliance reports
    • Purchase order/invoicing with negotiable terms

Liveblocks

Free
  • FreeFree
    • 10 projects
    • 3 dashboard seats
    • 10 simultaneous connections per room
  • Pro$30/month
    • $30 monthly credits
    • Removes Liveblocks branding
    • 3 dashboard seats
  • Team$600/month
    • SSO and SOC 2
    • 10 dashboard seats
    • 50 connections/room

Which should you pick?

Choose Stainless if

  • You need sdk generation.
  • You want to start without paying.
  • You work on web, api.
  • You also want mcp server generation.
Stainless review

Choose Liveblocks if

  • You need realtime presence and cursors.
  • You want to start without paying.
  • You work on web, api.
  • You also want comments.
Liveblocks review

Questions people ask

Is Stainless or Liveblocks better?
Neither clearly leads. Stainless starts at Free and Liveblocks at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stainless or Liveblocks?
Stainless starts at Free and Liveblocks at Free.
Does Stainless or Liveblocks run on more platforms?
Both run on web, api, so platform support will not decide this one for you.
Can I use Stainless for free?
Both have a free tier, so you can try either at no cost before committing.
What is Stainless best used for?
Stainless is most often used for generating typed sdks for a public api, producing an mcp server from an existing openapi spec, building an api documentation site alongside client libraries, giving open-source apis a free sdk generation path. Of those, generating typed sdks for a public api and producing an mcp server from an existing openapi spec are not what Liveblocks is typically brought in for.
What can Stainless do that Liveblocks cannot?
Stainless covers SDK generation, MCP server generation, Docs site generation, Webhooks and streaming support. Liveblocks covers Realtime presence and cursors, Comments, Version history, Custom notifications.

Answered from the vendors’ own pages

Stainless: Is there a free plan, and what are its limits?

Yes. The Free plan supports up to 5 generators, 5 seats, APIs with 25 or fewer endpoints, and 100 preview builds per month, with email support.

Source
Liveblocks: What does Liveblocks cost?

Liveblocks offers a Free plan with hard usage caps, a Pro plan at $30/month ($25/month billed annually) including $30 in monthly credits, a Team plan from $600/month, and custom Enterprise pricing.

Source
Stainless: Who owns the generated SDK code?

The generated SDK code is owned by the customer and published by Stainless under the Apache 2.0 license.

Source
Liveblocks: Is there a free plan, and what are its limits?

Yes, the Free plan includes 10 projects, 3 dashboard seats, 10 simultaneous connections per room, 3,000 collaboration minutes, 200 comments, and 1GB of realtime data storage, with features pausing once a cap is hit.

Source
Stainless: What happens if I exceed my plan's endpoint limit?

Customers exceeding their endpoint limits are billed per SDK, per endpoint, per month for the overage.

Source
Liveblocks: How is usage metered?

Paid plans include monthly credits covering collaboration minutes, comments, and storage; usage beyond the credit is billed at metered rates such as $0.002 per collaboration minute and $0.01 per comment, with credits resetting each billing cycle without rollover.

Source
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