KeyCage

  • Business
  • Security
  • Agents
NEAR Hackathon 2026

About

I built KeyCage at NEAR HACKATHON. My agent gets a function call key that can call only pay on my PolicyVault. The vault calls the allowed method on the receiver. A prompt injected agent was stopped on chain, and risky spends wait for my approval. Proof hashes are in the panel.

Media

From the builder’s post on X. Images and video are streamed from X’s servers, not copied.

Repository
Not supplied
Hackathon listing
nearhackathon.com#submissions (opens in a new tab)All submissions: the source has no per-project page

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