Softwr

Automation Integration · head to head

Alloy Automation vs Windmill

Alloy Automation logo

Alloy Automation

Automation Integration

Embedded integration platform and unified API, repositioned from ecommerce automation towards AI agent connectivity

From
On request
Rated
-
Full reviewWebsite
Windmill logo

Windmill

Automation Integration

Open-source developer platform for building scripts, workflows, and internal apps

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Windmill has a free tier, so it costs nothing to try first.
  • Each has a real cost: Alloy Automation the company has repositioned more than once, from ecommerce workflow automation to embedded integrations and now towards AI agent connectivity, so older reviews and comparisons describe a product that no longer matches what is sold today.; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: Alloy Automation covers Embedded iPaaS, Windmill covers Script-to-workflow engine.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Alloy Automation and Windmill actually diverge.

Attributes where Alloy Automation and Windmill differ
AttributeAlloy AutomationWindmill
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWebweb, api, linux, windows, mac

Identical on both: user rating (Not yet rated), category (Automation Integration).

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 Alloy Automation

  • Embedded iPaaS
  • Unified API
  • Connectivity API
  • MCP support
  • Data transformation
  • Error handling
  • Workflow automation
  • Prebuilt connectors

Only in Windmill

  • Script-to-workflow engine
  • Auto-generated UIs
  • Self-hosted deployment
  • Git sync
  • SSO support
  • Audit logs

What people use each for

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

Alloy Automation

  • A commerce or operations SaaS whose sales cycles keep stalling on a missing integration that engineering cannot schedulenot Windmill
  • A software company that wants its customers to self-serve connections to their own systems inside its product rather than filing support requestsnot Windmill
  • A vendor exposing connected systems to an AI agent that needs governed, auditable access rather than direct credential handlingnot Windmill
  • A team replacing a growing pile of one-off connectors whose maintenance is consuming a disproportionate share of engineering timenot Windmill

Windmill

  • Turning ad-hoc scripts into scheduled jobs and APIsnot Alloy Automation
  • Building internal tools from existing Python/TypeScript codenot Alloy Automation
  • Self-hosted automation for engineering teamsnot Alloy Automation
  • Orchestrating multi-language workflowsnot Alloy Automation

Where each one falls short

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

Alloy Automation

  • The company has repositioned more than once, from ecommerce workflow automation to embedded integrations and now towards AI agent connectivity, so older reviews and comparisons describe a product that no longer matches what is sold today.
  • It is routinely confused with Alloy, the identity and KYC platform, which causes real procurement and security-review confusion and means published comparisons frequently discuss the wrong company entirely.
  • Connector depth is the vendor decision, so a connector that exists may not cover the objects or write operations your feature needs, and you have limited ability to extend it yourself.
  • Embedding a third party into your customers integration experience means their uptime and their rate limits become your support tickets, with your brand on the failure.
  • Pricing is unpublished and scales with connected users, so a successful product that drives integration adoption sees this cost grow in step with its own success rather than flattening out.

Windmill

  • Free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • Compute unit and seat-based pricing (developer vs. operator seats, worker compute units) adds pricing complexity beyond a flat monthly fee.
  • Email triggers are capped at 100/day on the free tier, limiting event-driven use cases without upgrading.
  • Smaller ecosystem of pre-built integrations compared to more established automation tools like n8n.

Pricing, plan by plan

Alloy Automation

On request
  • Alloy Embedded and Unified API$undefined/year
    • Quoted by connector count, connected user volume and product mix
    • Separate commercial terms for Embedded, Unified API and MCP offerings
    • Annual agreement typical

Windmill

Free
  • Free / Open-sourceFree
    • Unlimited executions
    • Self-hosted deployment
    • Max 10 users with SSO
  • Enterprise$120/month
    • Unlimited executions and workspaces
    • Uncapped SSO seats
    • 24/7 priority support (3-hour response)

Which should you pick?

Choose Alloy Automation if

  • You need embedded ipaas.
  • You also want unified api.
Alloy Automation review

Choose Windmill if

  • You need script-to-workflow engine.
  • You want to start without paying.
  • You work on web, api, linux, windows, mac.
  • You also want auto-generated uis.
Windmill review

Questions people ask

Is Alloy Automation or Windmill better?
Neither clearly leads. Alloy Automation starts at On request and Windmill at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Alloy Automation or Windmill?
Windmill has a free tier; the other does not. Paid plans start at On request for Alloy Automation and Free for Windmill.
Does Alloy Automation or Windmill run on more platforms?
Alloy Automation runs on Web. Windmill runs on web, api, linux, windows, mac.
Can I use Windmill for free?
Yes. Windmill has a free tier, so you can try it without paying. Alloy Automation starts at On request.
What is Alloy Automation best used for?
Alloy Automation is most often used for a commerce or operations saas whose sales cycles keep stalling on a missing integration that engineering cannot schedule, a software company that wants its customers to self-serve connections to their own systems inside its product rather than filing support requests, a vendor exposing connected systems to an ai agent that needs governed, auditable access rather than direct credential handling, a team replacing a growing pile of one-off connectors whose maintenance is consuming a disproportionate share of engineering time. Of those, a commerce or operations saas whose sales cycles keep stalling on a missing integration that engineering cannot schedule and a software company that wants its customers to self-serve connections to their own systems inside its product rather than filing support requests are not what Windmill is typically brought in for.
What can Alloy Automation do that Windmill cannot?
Alloy Automation covers Embedded iPaaS, Unified API, Connectivity API, MCP support. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

Alloy Automation: Is this the same as Alloy the KYC company?

No. Alloy Automation is embedded integration infrastructure. Alloy is a separate identity decisioning and KYC platform used by banks. The name collision is a common source of confusion.

Windmill: What does Windmill cost?

Windmill's Free and Open-source edition is $0/month for self-hosted use with unlimited executions, while Enterprise starts at $120/month with unlimited workspaces and uncapped SSO seats, priced further by developer/operator seats and compute units.

Source
Alloy Automation: Is it still an ecommerce automation tool?

Not primarily. It started there, launched a unified API in 2023, and now positions as embedded integration infrastructure including MCP for AI agents.

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

The free self-hosted plan supports unlimited executions but caps SSO at 10 users, workspaces at 3, groups/permissions at 4, and email triggers at 100 per day.

Source
Alloy Automation: What does it cost?

Not published. Quoted by connector count, connected user volume and which of the embedded, unified API and MCP products you take.

Windmill: How is usage metered on Windmill Enterprise?

Enterprise usage is metered through seats (developer seats at $20/month, operator seats at $10/month) and compute units, e.g. $100/month for 2 standard-worker compute units.

Source
Alloy Automation: Can we self-host it?

No. It is a hosted commercial platform, unlike source-available alternatives such as Nango.

Windmill: What happens to a self-hosted Windmill deployment if the company shuts down?

The pricing page addresses this directly as an FAQ topic, noting that self-hosted applications built on the open-source edition can continue running independently of Windmill the company.

Source
Share

Related pages

More on Alloy Automation

More on Windmill

Keep looking

Other head to heads