AI agent security is moving at two speeds: most teams need action-level runtime enforcement now, while Google’s Beyond Zero points to what comes next.
How Arcjet hosts AI security models using Python, Open Inference Protocol, Go, and Modal: the architecture behind prompt injection detection.
How we defend Arcjet’s MCP tool outputs from prompt injection by separating trusted guidance from untrusted evidence in structured responses.
How we built Arcjet’s production MCP server in Go: integrating with an existing API, reusing auth and middleware, designing agent tools, and supporting OAuth discovery.
Introducing Arcjet prompt injection detection. Catch hostile instructions before inference. Works with Next.js, Node.js, Flask, FastAPI, and any JavaScript / TypeScript or Python application.
Announcing Arcjet’s local AI security model, an opt-in AI security layer that runs expert security analysis for every request entirely in your environment, alongside our Series A funding.
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