Tray.ai vs Windmill
A detailed comparison to help you choose between Tray.ai and Windmill.
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Verdict: Windmill wins
Windmill scores 4.2/5, edging out Tray.ai at 3.8/5. Engineering teams who want code-first internal tools, workflows and APIs on infrastructure they control, with no per-execution billing.
Tray.ai Enterprise automation with AI workflows | Windmill Open-source workflow automation for developers | |
|---|---|---|
| Rating | 3.8 (1 review) | 4.2 (1 review) |
| Pricing Model | paid | freemium |
| Starting Price | From $500/mo | Free tier available |
| Best For | Enterprise IT and platform teams that need integration, automation and governed MCP access for AI agents under one audit trail. | Engineering teams who want code-first internal tools, workflows and APIs on infrastructure they control, with no per-execution billing. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | team featuresssoapi access | open sourcefree tierapi access |
| Visit Tray.ai → | Visit Windmill → |
Tray.ai
Pros
- + 700+ connectors exposed as governed MCP tools via Agent Gateway — the most concrete agent-era move I have seen from an iPaaS
- + Tasks-based billing with no per-user, per-connection or per-runtime fees scales cost with activity, not headcount (stated on their pricing page)
- + Governance ladder is concrete: 7/30/180-day insights, Guardian Log Masking, log streaming, SSO/HIPAA/regional hosting at Enterprise
- + Tray Headless (Claude Code and Codex plugins, headless MCP, full API) is included in all plans, not gated
- + Mature since 2012 with ~$150M raised — reliability signals are stronger than the AI-era rebrand suggests
Cons
- - Every iPaaS tier says "Talk to sales" — no public price, no free tier, no self-serve trial; evaluation is a procurement process
- - The batch's $500 minimum is unconfirmed; the only published number on the site is Helix's $50/month entry
- - Product identity spans iPaaS, API platform, MCP gateway and agent builder — scoping needs a solutions architect
- - HIPAA and SSO require Enterprise (or Team add-on purchases), drawing a hard line mid-market buyers will hit
- - Agent Gateway and Merlin are add-ons, so the AI-agent story costs extra on top of an already quote-based platform
Windmill
Pros
- + Script-first model: typed functions become endpoints, jobs and flow steps with auto-generated UIs — my nightly pipeline was rebuilt in one Docker session
- + Free self-hosted tier carries unlimited executions, not a trial disguised as a plan
- + Rust execution engine kept orchestration overhead sub-second between flow steps in my tests
- + Worker-group model scales throughput with replicas and tag routing instead of redesigns
- + Transparent per-unit Enterprise pricing ($20/builder, $10/non-builder, $50/worker) with published SLA terms
Cons
- - Zero no-code path — teams without developers cannot use it at any price
- - Prebuilt Community Edition images bundle proprietary Windmill Labs terms (no resale/wrapping/modifying), separate from the AGPLv3 source build
- - Worker groups and role configuration have a real learning curve before the platform pays off
- - Small vendor (under twenty employees in 2024 reporting, ~$15M raised) relative to the incumbents it replaces
- - Flow durability is lighter than Temporal for mission-critical long-running orchestration
Frequently Asked Questions
Which is better, Tray.ai or Windmill?▼
Windmill scores higher at 4.2/5 vs 3.8/5 for Tray.ai, making it the better-rated option in our comparison.
What is the difference between Tray.ai and Windmill?▼
Tray.ai: Tray.ai is an AI-native enterprise integration and automation platform (iPaaS) for building AI agents, governing MCP and connecting 700+ apps, aimed at IT and ops teams. Windmill: Windmill is an open-source platform that turns scripts in Python, TypeScript, Go and other languages into workflows, internal apps and scheduled jobs. It is aimed at developers who prefer code over drag-and-drop builders.
Is Tray.ai or Windmill more affordable?▼
Tray.ai starts at €500/mo, Windmill starts at €0/mo. Check the comparison table above for current pricing.
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