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Automation Integration · head to head

Merge vs PartyKit

Merge logo

Merge

Automation Integration

One API for all your integrations

From
Free
Rated
-
Full reviewWebsite
P

PartyKit

Developer Tools

Platform for building and deploying realtime multiplayer servers on the edge

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Merge cannot access data outside Merge's universal schema; no support for custom objects or deep field mappings; PartyKit documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
  • They diverge on capability: Merge covers Unified API, PartyKit covers Stateful edge servers.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Merge and PartyKit actually diverge.

Attributes where Merge and PartyKit differ
AttributeMergePartyKit
Pricing modelusage-basedfreemium
PlatformsApiweb, api
CategoryAutomation IntegrationDeveloper Tools
Founded2020Unknown

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 Merge

  • Unified API
  • HRIS integrations
  • Accounting integrations
  • CRM integrations
  • ATS integrations
  • Ticketing integrations
  • File storage integrations
  • Workday

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.

Merge

  • Workflow Automationnot PartyKit
  • Data Integrationnot PartyKit
  • Process Automationnot PartyKit
  • App Integrationnot PartyKit
  • API Connectivitynot PartyKit

PartyKit

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

Where each one falls short

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

Merge

  • Cannot access data outside Merge's universal schema; no support for custom objects or deep field mappings
  • Merge holds customer OAuth tokens, creating vendor lock-in; switching providers requires re-authentication from all customers
  • No support for legacy systems without APIs; limited to modern SaaS applications
  • Pricing complexity at scale with multiple dimensions (workflows, tasks, connectors) affecting costs

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

Merge

Free
  • FreeFree
    • 1 linked account
    • All integrations
    • Standard support
  • Launch$650/month
    • 50 linked accounts
    • All categories
    • Email support
  • Scale$2500/month
    • Unlimited accounts
    • Priority support
    • SLA
  • Enterprise$undefined/month
    • Dedicated support
    • Custom contracts
    • Advanced security

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 Merge if

  • You need unified api.
  • You want to start without paying.
  • You work on Api.
  • You also want hris integrations.
Merge 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 Merge or PartyKit better?
Neither clearly leads. Merge 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, Merge or PartyKit?
Merge starts at Free and PartyKit at Free.
Does Merge or PartyKit run on more platforms?
Merge runs on Api. PartyKit runs on web, api.
Can I use Merge for free?
Both have a free tier, so you can try either at no cost before committing.
What is Merge best used for?
Merge is most often used for workflow automation, data integration, process automation, app integration. Of those, workflow automation and data integration are not what PartyKit is typically brought in for.
What can Merge do that PartyKit cannot?
Merge covers Unified API, HRIS integrations, Accounting integrations, CRM integrations. PartyKit covers Stateful edge servers, WebSocket-first API, CRDT library compatibility, Framework integrations.

Answered from the vendors’ own pages

Merge: What is a Linked Account in Merge?

A Linked Account represents an end customer's authenticated connection to a third-party application (like Salesforce, HubSpot, or Zendesk). Merge pricing is based on the number of production Linked Accounts your end users activate.

Source
PartyKit: How much does PartyKit cost?

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

Source
Merge: Can I access custom data not in Merge's universal schema?

No. Merge works well for standardized integrations but hits limits with enterprise customers. You cannot access data outside Merge's universal schema, cannot customize integration behavior for specific customers, and cannot pull deeply custom data from source systems.

Source
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
Merge: What happens if I switch away from Merge?

Merge holds your customers' OAuth tokens. Switching providers means asking every customer to re-authenticate, resulting in potential customer churn and unhappy users.

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
Merge: Does Merge work with legacy systems?

No. Merge only works if there's an API. Legacy ERPs, government portals, insurance carriers, and older enterprise systems that customers depend on often don't have APIs, making Merge unable to support these integrations.

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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