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MCP servers tagged guardrails
304 live MCP servers tagged "guardrails", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with guardrails.
Agentrelay
Supervise an AI coding agent (Claude Code / Codex / ACP) overnight and keep control: block forbidden tool calls before they run, gate 'done' on real tests, checkpoint work to git,…
Typesafe MCP
MCP server for TypeSafe AI's Jev: typed yes/no, choice and score answers with act / review / abstain gating.
Hallwright
Hallwright: Deterministic pre-commit guardrail, living project memory, and subagent orchestration for Claude Code, Cursor, Copilot, Antigravity, and AI coding assistants.
Nocap
No evidence, no answer. 🧢 System One evidence gate for RAG & AI agents: Jev / Laya / any LLM judges before your LLM speaks. MCP server, Python SDK, CI route tests.
Warden
Drop-in security proxy for MCP — policy, tamper-evident audit, human approval, prompt-injection & secret-exfil defense. One line of config, zero code.
Sun2Agent
Open-source AI agent CLI with native MCP support, Human-in-the-Loop approval, 5-layer security guardrails, and optional Docker sandboxing.
AgentGuard
Protect AI agents by detecting and blocking prompt, command injection, Unicode bypass, and social engineering attacks with customizable security controls.
Guardrail
Scan AI-generated code for security, performance, and code quality issues before they ship
Shield
Zero-overhead runtime security proxy, reversible secret vault, and audit firewall for MCP servers (Cursor, Claude, Windsurf)
Agent Action Gate
Deterministic policy gates for AI agent tool calls: allow, deny, or require human approval.
Orchestrator
Enterprise MCP Server Management
N2 Ark
Deterministic Guardrails for AI Agents. Ark acts as a logic-based firewall, preventing unauthorized actions through a rigorous rule engine. Ensure your AI behaves exactly as inten…
Agent Guardrails
Merge gates and safety checks for AI coding agents. Works with Claude Code, Cursor, Windsurf, Codex via MCP. Detect scope violations, missing tests, and risks before merge.
Acgs Lite
Constitutional governance infrastructure for AI agents — the missing safety layer between your LLM and production
sidclawhq/mcp-guard
no SDK needed.
Ingest API
FastAPI-based multi-agent orchestrator for Odoo. Uses a Semantic Router to dispatch intents to specialized agents via Model Context Protocol (MCP/FastMCP). Features Guardrails AI…
Groundwork
An agent that answers questions about AI engineering from a knowledge base about AI engineering, so every answer is also a worked example of the retrieval that produced it. LangGr…
IntentProbe
Activation-probe security scanner for AI agent tooling. Reads a model's internal activations to detect poisoned MCP servers, skills, and packages before install.
Terraform Guardrail
Terraform-Guardrail (TerraGuard) MCP is an open-source governance framework that enforces consistent, executable guardrails for Terraform across CI/CD pipelines—helping teams deli…
MCPBoundary
A local proxy that wraps your MCP servers and checks each tool call against policy and live state before it runs - allow, block, or request a refresh, with a reason the agent can…
Csc Agent Guard V1
Deterministic pre-execution safety gate for AI agents: verify tool calls against trusted evidence, policies, and WorldState before side effects.
Hyper
AI-authored, human-reviewable infrastructure automation. Nothing reaches the world unreviewed; nothing changes unseen.
Bedrock Ops MCP
MCP server: AWS Bedrock model capability lookup, feature pre-check, and PII-safe response redaction. Wraps bedrock-ops.
AI Roadmap
AL/ML learning Gym including traditional ML, deep learning, fine-tuning, Gen AI, Agentic AI. Everything from experiments to production with evaluation and observability.
Issa
Issa — Intelligence Server-Side Agent. Issa: An open-source Action-Control Gateway to stop AI agents from executing unauthorized side-effects.
Constitution Lint Action
GitHub Action that lints CLAUDE.md-style agent constitution files for missing operational guardrails — spend limits, injection defense, escalation paths, secrets rules
Imprest
Spend control & audit for AI agents — give your agent an allowance, not your keys. MCP server, non-custodial, x402.
Claude Code Invoice Guard
Deterministic guardrail (refuse, don't guess) for an LLM agent on a VAT-critical invoice workflow: skill + subagent + MCP server + PreToolUse hook. Portfolio/demo plugin.
AgentAction
Trust infrastructure for autonomous AI agents: decision assurance, action authorization, runtime controls, and verifiable lifecycle evidence.
Aop MCP
MCP server for Adverse Outcome Pathway (AOP) discovery, semantics, and draft authoring.
Agent Guardrails Spring Boot Starter
Security & governance guardrails for MCP agents in Java — audit trail, agent-to-tool authorization, prompt-injection detection and rate limiting as a zero-config Spring Boot start…
Resultseal
Deterministic observation-integrity contracts for AI-agent tool results. HTTP 200 is not an observation.
Project Guardian
AI Guardian Firewall — a local, user-space, agent-agnostic firewall that mediates an autonomous AI agent's actions (files, shell, network, services) with a deterministic policy bo…
Autoagent
Zero-dependency LLM agent runtime — tool use, MCP, sandboxed self-written tools, checkpoint/resume, approval gates, bi-temporal fact memory, code-level guards (context bounds, loo…
Orchestrion
Deterministic multi-LLM orchestration with grounded, verified answers, an editable guardrail gate, and a live process dashboard.
Itsm Agent
ORBIT - An Agentic AI ITSM assistant that can create and retrieve ServiceNow tickets, manage user sessions with memory persistence, answer ITSM knowledge queries, enforce ITSM-onl…
Planner Guard
A decision-layer guardrail for MCP agents. Gates tool calls by intent and logs the planner's reasoning. Complements MCP firewalls, doesn't replace them.
Ops Pilot
Production-grade multi-agent AI DevOps system for SRE incident response, where a central orchestrator coordinates 12 specialist agents to classify incidents, traverse service depe…
Qedra
A runtime gate for coding agents: an MCP server that blocks the tool calls that wreck a repo (force-push main, rm -rf, secret exfil, CI wipe) and lets real work through. Machine-c…
Ghl MCP Scoped
Least-privilege policy wrapper for any GoHighLevel MCP server. Declare which tools an AI agent may call and under what argument conditions; everything else is refused and logged.…
Ephorate AI Governance And Monitoring
Open-source control plane for AI agent security & governance — runtime policy enforcement, tamper-evident audit, prompt-injection detection (SIEM/EDR) and compliance mapping (NIST…
OmniDoc QA LLM RAG
Agentic NL-to-SQL assistant using Model Context Protocol (MCP) with multi-layer guardrails and token cost tracking.
Data Warden
Agente NL→SQL sobre un lakehouse con cinco anillos de control: guard de allowlist sobre el AST, presupuesto de coste estimado antes de ejecutar, enmascarado por rol y auditoría. S…
Bluerock Security
Bluerock Security — independent third-party profile of a public API surface, by API Evangelist. BlueRock Security is a runtime security, observability, and governance platform for…
Readonly SQL Guard
A provably read-only SQL guard for AI agents — drop it into any MCP server or database tool. Checks what a statement calls, not just its shape; measured against a public 28-attack…
Jv Watchtower MCP
Read-only MCP operations console over a 24/7 algorithmic trading fleet (sanitized portfolio extract). Sanitization is enforced in the data layer, so the strategy never reaches the…
Ccs Integrations
Framework-native adapters for CCS (Correctover Conformance Shape) cryptographically signed runtime receipts — Ed25519 + JCS signed audit evidence for AI agent tool calls (Pydantic…
Koboi Agent
Self-hostable AI agents you can actually leave running — durable crash-resume, governed autonomy, seccomp sandbox, offline-replayable workflows, CI-native eval. Async-Python, YAML…
Zguard AI Integrations
Central documentation repository for all integrations with Zscaler AI Guard
AI Security
Open-source, self-hosted Fastest AI security gateway for LLM and agent apps: guardrails, agentic PDP, semantic caching, MCP gateway.