| What it does | AI agent testing and evaluation that turns unpredictable agents into reliable production systems
| Production Stack for Gen AI Builders
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| Stage | Growing
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| Founded | Not given
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| Based in | NL
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| Pricing model | freemium
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| Pricing | Free Developer plan forever with 50k events/month. Growth plan at €29/core-seat/month with 200k included events, then €5 per 100k additional events. Storage €3/GB beyond 30-day included retention. Enterprise with custom pricing.
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| Key features | - Agent simulations with simulated users
- Red teaming and adversarial testing
- LLM-based evaluation and scoring
- Full production observability and tracing
- Prompt versioning and A/B testing
- Voice agent simulation and testing
- Multi-modal evaluation
- OpenTelemetry native instrumentation
- Claude Code usage tracking
- Enterprise SSO and RBAC
| - AI Gateway with universal API access to 1,600+ LLMs
- Real-time observability dashboard for LLM monitoring
- Guardrails for enforcing output quality and constraints
- Prompt management with templates and versioning
- AI Governance with role-based access control
- Semantic and simple caching with unlimited TTL
- Automatic fallbacks and advanced routing rules
- Agent tracing and performance monitoring
- PII redaction for data privacy
- MCP Gateway for Model Context Protocol integration
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| What makes it different | - Works framework-agnostically with any agent framework without rewrite
- Simulations with real user behavior from scenario descriptions
- Fully automated testing from PM goals to pull requests with Langy
- Self-hosted, hybrid, or cloud deployment with full control
- Production traces queryable at search speed with AI search
| - Unified API access to 1,600+ LLMs with 3-line integration
- Intelligent caching that saves thousands on repeated requests
- Real-time observability and cost monitoring dashboard
- End-to-end LLM orchestration for agents and complex workflows
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 53 ● no change since last check | 74 ● no change since last check |
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| Trust Flow (Majestic) | 25 | 27 |
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| Citation Flow (Majestic) | 45 | 47 |
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| Referring domains (Majestic) | 852 | 3006 |
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