YC Spring 2026 (P26) founder

Theodore Otzenberger

Founder of Armature, Armature builds, monitors and optimizes products' Agent Experience.

Company

Theodore Otzenberger is listed as a founder of Armature. 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.

Founder traction evidence

Public posts and activity attributed directly to this founder.

  1. X

    Today, we're launching Armature - Product Analytics for MCPs, Claude Connectors and ChatGPT Apps! Your users now ask Claude Code and ChatGPT to use your product for them.

    Today, we're launching Armature - Product Analytics for MCPs, Claude Connectors and ChatGPT Apps! Your users now ask Claude Code and ChatGPT to use your product for them. You get the raw tool calls, never the user intent. We change that!

  2. X

    The next models are training right now.

    The next models are training right now. Either GPTBot and ClaudeBot collected your pages, or the next generation of AI learns your category from your competitors. You have no idea which. The crawls never show up in your analytics. https://t.co/8k4Rfe4FXA shows you each one.

  3. LinkedIn

    Armature is joining Y Combinator

    Founder post says Armature (YC P26) is joining Y Combinator and names cofounder Louis.

  4. X

    Company brain, Agents, Culture.

    Company brain, Agents, Culture. @ArmatureYCP26 was born in the AI era, and it shapes 𝙃𝙤𝙬 𝙬𝙚 𝙤𝙥𝙚𝙧𝙖𝙩𝙚. We invested in being an AI-native company from day 1. That choice runs through our culture and our day-to-day: our agents are aware of everything we do, and that

  5. X

    If you're a small startup, it was already hard to be chosen by agents.

    If you're a small startup, it was already hard to be chosen by agents. Now, coding agents plugged to @mintlify Index will simply NEVER discover newest products. Ranking by "traffic popularity" will concentrate choices and I don't think that's for the best.

  6. X

    MCP and CLI deserve evals, just like any AI agent.

    MCP and CLI deserve evals, just like any AI agent. Thanks @AntWilson & @kiwicopple for popularizing it for @supabase With @ArmatureYCP26, we're providing anyone the infra to set up agent-facing interfaces evals - and the first 100s of runs are on us! https://t.co/6WjVCLhJv7

  7. X

    Every 1st of the month, whatever happens.

    Every 1st of the month, whatever happens.

  8. X

    TIL

    TIL