Bren
Test your agent interfaces against the agents that use them
Details
- Categories
- AIDeveloper Tools
- Use Cases
- A/B TestingAI AgentsAI Integration
- Target Audience
- AI DevelopersAI EngineersAI Startups
- Pricing
- Free
About Bren
Bren is the Agent Experience (AX) platform — evaluation and observability for the interfaces your product ships to AI agents: MCPs, skills, plugins, connectors, and code-use sandboxes. When you ship an MCP server or a Claude skill today, you have no real way to know how agents actually use it. Bren fixes that. Point us at your agent interface and we run realistic scenarios across Claude, GPT, Gemini, and Claude Code — at different model settings. You see exactly where agents misread your schema, where retry loops blow up, where workflows quietly fail, and which version of your tool description actually wins. You can also host your MCP server and see who is using it and how users are interacting with your MCP server. We provide Auth, Observability and Analytics Layer out of the box. Try us and let us know at [email protected]
Product Insights
Bren is a web and API-based platform providing evaluation and observability tailored for agent interfaces like MCP servers and plugins. It enables developers to test schema accuracy and workflow reliability across multiple leading LLMs simultaneously.
- Supports testing across Claude, GPT, Gemini, and Claude Code models.
- Provides integrated hosting, authentication, and analytics for MCP servers.
- Facilitates A/B testing of tool descriptions and versioned schemas.
- Identifies specific failure points in retry loops and autonomous workflows.
Ideal for: AI Developers and Engineers use Bren to optimize MCPs and AI integrations through automated scenarios and real-time observability.
Product Video
Watch a video demo of Bren.
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All the best team!