Siper Guard sits between your AI clients and MCP servers, inspecting every tool call through a 9-stage security pipeline before it reaches your real infrastructure.
Every request and every response in MCP traffic passes through the same hook chain — malicious calls are stopped before they reach the server, sensitive data is redacted before it leaks to the client, and attacks that unfold over time are caught too.
Siper Guard sits between your AI clients and MCP servers and inspects JSON-RPC traffic in both directions.
Input validation, rate limiting, chain checks, pre-exec and post-exec hooks — the same pipeline for every call.
Malicious tool calls are stopped before they reach your MCP server.
PII and secrets in server responses are redacted before they reach the client.
Tool definitions are hash-pinned after approval; a silent change is blocked.
Chained steps raise a MITRE ATLAS-mapped risk score; past the threshold, a human decides (enterprise).
Every decision is written to a SHA-256 hash-chained, signed audit log.
