Armature
Armature is a YC Spring 2026 (P26) company. Based in San Francisco, CA, USA. Team of 3.
About Armature
Summary
Armature helps software tool and API companies get discovered, adopted, and correctly used by coding agents such as Claude Code, Codex, and Cursor. It tests how agents find and select tools across a panel of real-world repositories, traces what the agent reasoned through and where it went wrong, and benchmarks a product's standing against competitors. It replaces manual guesswork about agent behavior with instrumented sessions, automated remediation, and a dedicated growth service that works with the customer's team to move from ignored to recommended.
Business model
A managed service engagement run with a dedicated growth engineer, plus a self-serve analytics and benchmarking platform.
Go-to-market
B2B software tool and API vendors buy Armature; they enter through either a book-a-call sales motion for the managed discoverability service or direct sign-up for the analytics platform.
From the Y Combinator listing
Armature builds, monitors and optimizes products' Agent Experience.
Armature helps companies monitor, analyze, and optimize how AI agents experience their products. What we do today: - Automated testing: We run complex sessions against your MCPs/CLIs across all major harnesses and models to catch broken workflows before your users do. - AX analytics & benchmarking: No more black boxes. We trace agent sessions to show you exactly what the model "thought", what context it missed, and why it failed. We measure your AX against competitors to ensure you remain the preferred platform for agents to use. - Auto-remediation: Our MCP lets your internal coding agents plug into Armature to autonomously fix your product's AX based on our run data. Our vision for tomorrow: Reaching full understanding of how agents use your product and how you can improve it is only step one. The next step is to provide the foundational infrastructure for the Agent Experience, powering agent-native revenue, lifecycle marketing, and customer support for the next generation of software.
Facts
- B2B / B2B -> Engineering, Product and Design
- San Francisco, CA, USA
- 3
- Active
- Early
Founders (2)
- Louis Scremin
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