One
Give your AI agents secure access to 500+ platforms with one CLI. Managed auth, 80k+ tools, and production-ready runtime. Free to start.
Editor's Verdict
Key Takeaways
- Universal Integration Runtime
- Flat Context Window
- Managed Authentication
- Multi-Step Workflows (Flow)
In-Depth Review: What is One?
One is the integration runtime for AI agents, providing a unified CLI to connect 500+ platforms with 80,000+ actions. It handles authentication, rate limiting, error handling, and context optimization, allowing agents to act across apps like Gmail, Slack, Stripe, HubSpot, and more. Built for production with <100ms p95 latency and 99.9% uptime. Open source SDK, MCP support, and enterprise features like SSO and SCIM. Used by teams at Google, Microsoft, Figma, and more.
Core Features
Universal Integration Runtime
Gives AI agents authenticated access to 500+ platforms and 80,000+ actions through a single CLI, SDK, and MCP server.
Flat Context Window
Maintains ~3K tokens regardless of number of integrations, using a search-based MCP model instead of loading all tool schemas.
Managed Authentication
Handles OAuth 2.0/1.0a, API keys, and Basic Auth with automatic token refresh, tenant isolation, and SSO/SCIM support.
Multi-Step Workflows (Flow)
Enables complex, stateful workflows with branching, loops, parallel execution, pause/resume, and a JSON format agents can generate.
Open Source Action Knowledge
All integration skills are open source, allowing inspection, forking, and contribution.
Event-Driven Webhooks (Relay)
Provides a single endpoint for 250+ event sources with normalized payloads and guaranteed delivery.
Agent Memory & Scheduling
Persistence and vector search for agent memory, plus cron-style scheduled tasks without infrastructure management.
High Performance & Reliability
<100ms p95 latency and 99.9% uptime, backed by a Rust integration layer and continuous verification.
Bridge for API Activation
Converts any API documentation URL into a production-ready MCP server with managed auth and context optimization.
Pricing
Free
- Access to 500+ platforms and 80,000+ actions
- CLI and SDK
- Managed authentication
- Basic support
Enterprise
- SSO/SCIM
- Dedicated support
- Audit logs
- Custom integrations
- VPC/on-prem deployment
Pros and Cons
Pros
- Flat Context CostOne's search-based MCP model keeps context at ~3K tokens regardless of number of integrations, saving on LLM costs and latency.
- Open Source Action KnowledgeAll integration skills are open source, allowing full transparency and customization.
- Full Production StackIncludes workflows, webhooks, memory, and scheduling, reducing the need to assemble multiple tools.
- Managed AuthHandles OAuth, API keys, token refresh, and tenant isolation automatically.
- High Performance<100ms p95 latency and 99.9% uptime published with a Rust-based infrastructure.
Cons
- Not Fully Open SourceWhile action knowledge is open, the platform (dashboard, hosted auth) is managed and not self-hostable.
- SOC 2 in ProgressCompliance certification is not yet complete, which may be a concern for some enterprise customers.
- Usage-Based PricingPricing is not transparent with fixed tiers, making cost estimation less straightforward than per-call models.
- Learning CurveRequires familiarity with CLI and SDK, which may not suit non-technical users.
- Newer PlatformHaving raised $4M recently, the platform is relatively new compared to established alternatives.
Use Cases & Recommended Professions
Software Engineer→ View Toolkit
Needs to integrate AI agents with multiple APIs without writing custom code for each integration.
Product Manager→ View Toolkit
Uses AI agents to automate cross-platform workflows and gain insights from connected tools.
Customer Support Manager→ View Toolkit
Automates ticket resolution by integrating support platforms with CRM and email.
Data Analyst→ View Toolkit
Accesses and analyzes data from multiple SaaS platforms programmatically through agents.
IT Administrator→ View Toolkit
Manages authentication, access control, and security for AI agents connecting to corporate apps.
Operations Manager→ View Toolkit
Streamlines complex, multi-step business processes by chaining actions across apps.
Frequently Asked Questions
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ℹ️ Curation Disclosure: The overview and features of One were synthesized using AI and fact-checked by our curation team to ensure accuracy.