StackOne
Unified API platform giving AI agents access to 290+ apps with 19,000+ actions, custom integrations, and managed infrastructure for agents
Overview
StackOne is a unified API platform specifically designed to give AI agents access to 290+ business applications through 19,000+ pre-built actions. Unlike general integration platforms, StackOne focuses on agent-friendly APIs that provide structured, actionable data perfect for AI consumption. The platform handles authentication, rate limiting, data normalization, and error handling, while offering the flexibility to build custom integrations in hours. With managed infrastructure, security compliance, and a focus on B2B software categories like HRIS, CRM, and productivity tools, StackOne enables developers to rapidly connect AI agents to the tools their users already use.
The Verdict
Who Should Use StackOne?
Best For
- Developers building B2B AI agents requiring data access
- Teams needing agent-optimized API responses
- Products requiring rapid custom integration development
- AI applications needing structured, normalized data
- Enterprises prioritizing security and compliance
Not Ideal For
- Consumer-focused applications (B2C)
- Projects needing only a handful of integrations
- Teams requiring open-source solutions
What's Great
- 290+ apps with 19,000+ agent-ready actions
- Custom integrations buildable in hours
- Managed infrastructure and compliance
- Normalized, structured data for AI consumption
- Focus on B2B and enterprise applications
- Security and compliance built-in
Watch Out For
- Smaller app catalog than largest platforms
- Primarily B2B focus may limit consumer app access
- Usage-based pricing can scale with adoption
- Newer platform with evolving feature set
Pricing
View all features & details
Key Features
- 290+ pre-built app connectors
- 19,000+ agent-ready actions
- Unified API with normalized data
- Custom integration builder
- Managed authentication and security
- Built-in compliance (SOC 2, GDPR)
App Categories
- HRIS & HR Tech
- CRM & Sales
- Productivity & Collaboration
- Marketing Automation
- Project Management
- File Storage & Documents
How It Compares
| Feature | StackOne | Merge | Composio |
|---|---|---|---|
| Integrations | 290+ apps | 200+ B2B | 1,000+ general |
| Actions | 19,000+ | ~5,000 | 10,000+ |
| Agent Focus | Purpose-built | Data Access | Tool Execution |
| Pricing | $0-$0.30/conn | $0-$400+ | $0-$99+ |
| Best For | AI Agent Actions | B2B Data Sync | Multi-framework Tools |