
PrismGuard
Self-hosted LLM guard — auditable blocks, not scores
16 followers
Self-hosted LLM guard — auditable blocks, not scores
16 followers
PrismGuard is an open-source firewall for LLM apps. Block prompt injection before it hits your model — every allow/block returns resolution_gate (which rule decided), not a probability score your team argues about in Slack.
Rules-first: pip install prismguard. Optional local ONNX. Apache-2.0. Cold holdout: 14/14 vs LLM Guard 9/14.
Wire at agent entry, RAG chunks, or sidecar. v0.1.6 on PyPI — alpha, feedback welcome.
PrismGuard
Launch date

Insight IT Solutions PrismGuard Prompt-injection firewall for prod LLM apps
Launched on July 10th, 2026