StackOne Alternatives (January 2026)

StackOne - The future of B2B SaaS integrations, now.

https://www.stackon.com/

Rapidly ship deep, secure HR Tech integrations with StackOne's innovative integrations platform.

4.9/5

17+ reviews

Reviewed on:

The Modern Leader in Automation | Workato

https://www.workat

.com/

Unlock seamless integrations and connect apps effortlessly with Workato's industry leading intelligent automation platform.

Integration Infrastructure for SaaS Products - Integration.app - Integration.app

https://integratio

.app/

Integration platforms are too restrictive. Level up your the integration infrastructure of your SaaS product with our AI-powered framework.

Unified, AI-powered iPaaS for every team to automate at scale | Tray.io

http://tra

.io/

Dramatically simplify API integrations with Tray connectors, the Connector Builder, and our Authentication and Projects features. Visit Tray.io to learn more.

Alloy | Integration Development Platform

https://runallo

.com/

Alloy is an embedded integrations platform used by engineering and product teams to simplify & accelerate all aspects of integration development - from user-customizability to polling infrastructure.

Celigo: Integrate your apps. Upgrade your business.

https://www.celig

.com/

Empower your workforce with Celigo's next-gen integration platform. It unifies all your apps and data—so you can automate and optimize every business process.

One API for all your integrations | Knit

https://www.getkni

.dev/

Fast track your integrations roadmap with the KNIT unified API. Webhooks based architecture, no data storage policy, and whitelabeled auth for complete peace of mind!

Merge - One Unified API for all HR, Payroll, Accounting, Ticketing, CRM, and ATS Integrations.

https://www.merg

.dev/

Build once, maintain, and onboard in days, not months. Single API integration to add all HR, payroll, ticketing, accounting, ATS, CRM, SCIM and directory platforms.

Unified.to — Unified APIs for HR, ATS, CRM & Authentication

https://unifie

.to/

Unified API - one API for HR, ATS, CRM, Accounting, Storage, MarTech, Enrichment, and Call Center integrations

Pandium - The Only Code-First Embedded iPaaS for B2B software Companies

https://www.pandiu

.com/

Build and launch native software integrations. We handle integration infrastructure for you, so you can build easier, launch faster, and generate ROI sooner.