Armature
Product analytics (and evals) for agent sessions on your MCP
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What is Armature?
Armature is an analytics and evaluation platform for AI tools and MCPs that monitors user sessions, identifies top use cases and issues, and runs automated evals across AI models. It's designed for teams building AI products who need visibility into how users interact with their Claude, ChatGPT, or MCP integrations.
Armature pricing
Pricing model: Freemium
Free: $0 with 1,000 credits/month (covers 1,000 sessions, 100 eval runs, or mix). Additional credits at $50 per 1,000. Unlimited projects and users during launch.
Armature pros
- Automatic session analytics with AI-powered use case detection and issue categorization, even when API responses appear successful
- Comprehensive session replay and scoring functionality to debug agent behavior and trace exact failure points
- Built-in eval suite that tests workflows across multiple AI models (Claude, ChatGPT, Claude Code, etc.) to catch regressions before release
- Automatic PII and secret redaction for data security and compliance
Armature cons
- Requires SDK integration—not a universal monitoring solution; only works with supported integrations (MCP, CLI)
- Pricing beyond free tier uses a credit-based model that may be unclear for high-volume use cases
- Limited visibility into compliance certifications or detailed security/audit capabilities beyond PII redaction
Frequently asked questions about Armature
What types of AI tools does Armature support?
MCP (Model Context Protocol) servers, CLI tools, and integrations with Claude, ChatGPT, and Claude Code.
Does Armature handle sensitive user data?
Yes—detection models automatically scan and redact PII and secrets before storage.
How quickly can I get started?
Within minutes: sign up, generate an API key, add the SDK to your deployment, and deploy.
Can I create custom evals?
Yes—you can write custom evals manually, or have the platform auto-draft evals from your top use cases and issues.