Guardrails & policy MCP servers

201 listed servers in Agent safety & governance. Each row shows the automated checks, the secrets asked for and an install command.

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Guardrails & policy servers 201

MCP servers, Guardrails & policy, newest updates first
Type Secrets Version Actions
io.github.tanishq-ctrl/governance-gateway

Deadline-aware governance for AI agents: PII scan always, safety check if it fits the deadline

7/7All passed52health of 100PyPIRuns locallyNoneno keys asked0.1.1
io.github.d3ltasecurity/opnsense-guard-mcp

Safety-first OPNsense firewall MCP: read-only by default, planned and auto-reverting writes.

7/7All passed53health of 100PyPIRuns locally2secrets asked0.1.1
★ 17 io.mcp-hangar/hangar

Policy enforcement plane for MCP: every tool call ends in a verdict. Self-hosted, MIT.

6/71 warning73health of 100PyPIRuns locallyNoneno keys asked2.34.5
io.github.magicsword-io/magicsword-mcp

Manage MagicSword endpoints, alerts, policies, and private intelligence through MCP.

7/7All passed59health of 100npmRuns locally1secret asked0.1.4
io.github.HamdiM99/intentplane

Gateway in front of MCP tools: critical arguments are checked against trusted sources and a policy.

7/7All passed52health of 100PyPIRuns locallyNoneno keys asked0.5.3
★ 7 ai.getmarrow/marrow

Approval gate and audit trail for AI agent actions: policy check first, proof after. Any MCP client.

6/71 warning66health of 100npmRuns locally1secret asked3.9.108
★ 1 io.github.vardhjain/finos-mcp-aigf

Read-only MCP for FINOS AI governance risks, controls and crosswalks. Independent project.

7/7All passed54health of 100PyPIRuns locallyNoneno keys asked0.3.2
★ 8 io.github.svayatta/agent-custody

MCP gateway that checks each agent tool call against a signed grant and policy, and signs a receipt

7/7All passed72health of 100npmRuns locallyNoneno keys asked0.12.0
★ 3 io.github.kapella-hub/firekeep

Self-hosted operating layer for AI agents: knowledge, continuity, coordination, and governance.

6/71 warning51health of 100PyPIRuns locallyNoneno keys asked1.8.2
★ 5 io.github.kironovlaziz-del/provenza

Governed MCP gateway: approved tools only, each call policy-checked and recorded per agent

7/7All passed65health of 100PyPIRuns locally1secret asked0.2.1
★ 13 io.github.Rul1an/assay-mcp-server

Policy-enforcing MCP proxy with portable evidence output.

6/6All passed60health of 100MCPBRuns locallyNoneno keys asked6.17.0
★ 1 io.github.dockndevai/mcp-keycloak

Keycloak admin for AI agents — realms, users, clients, roles; safe-by-default governance.

7/7All passed54health of 100npmRuns locally1secret asked0.3.3
★ 1 io.github.dogrucanemek-alt/cedulon

Policy-gated agent spend with signed receipts and rail-extract audit

7/7All passed54health of 100npmRuns locallyNoneno keys asked0.16.0
★ 9 com.scopeblind/protect-mcp

Fail-closed Cedar policy gate + Ed25519 signed receipts for agent tool calls. Denies on any error.

6/71 warning56health of 100npmRuns locallyNoneno keys asked0.32.4
★ 7 io.github.heuristicolab/ctxfw

Zero-egress AI Agent Firewall: SARA prompt injection defense, AST context pruning & MCP governance.

6/71 warning52health of 100PyPIRuns locallyNoneno keys asked4.1.1
★ 2 io.github.SemanticDataCharter/sdcgovernance

Governance validation for Semantic Data Charter instances; returns OASIS XACML decisions.

7/7All passed55health of 100PyPIRuns locallyNoneno keys asked4.3.1
★ 3 io.github.Xxx91n/mcp-for-maya

AI agents' spatial awareness inside Autodesk Maya: audit, rollback safety, visual loop (Beta)

7/7All passed69health of 100PyPIRuns locallyNoneno keys asked0.6.0
★ 31 io.github.knaisoma/data-olympus

Governance-grade knowledge-base format (OKF-compatible) plus CLI and single-writer MCP server

6/71 failed40health of 100PyPIRuns locallyNoneno keys asked0.11.4
★ 1 io.github.kanywst/mcp-opa-authz

Authorization answers from real policy code: evaluate Rego locally, or ask an AuthZEN 1.0 PDP.

4/4All passed45health of 100DockerRuns locally1secret asked0.6.2
io.github.ai-ronin-systems/makefile-mcp

Expose trusted GNU Make targets as governed MCP tools without a generic shell.

6/71 warning47health of 100PyPIRuns locallyNoneno keys asked0.3.0
★ 1 io.github.odedmoshe/policyseed

Draft SOC 2 policies from your AI assistant, via MCP

7/7All passed62health of 100npmRuns locallyNoneno keys asked1.1.1
★ 32 io.github.quantamixsol/graqle

Graph-powered codebase reasoning, impact analysis, and governance tools over MCP.

6/71 warning51health of 100PyPIRuns locallyNoneno keys asked0.87.1
io.github.Lynn-hh/armguard-mcp

Safety-first MCP server for ROS 2 robot arms: server-side safety envelope, human approval, audit

7/7All passed51health of 100PyPIRuns locallyNoneno keys asked0.1.1
★ 1.3k io.github.sipyourdrink-ltd/bernstein

The open-source governance layer for AI agents. Byte-identical run receipts, 40+ adapters, air-gap.

6/71 warning76health of 100PyPIRuns locallyNoneno keys asked3.23.0
io.github.kaito3636/x402-presign-guard

Pre-sign EVM tx/approval safety for AI agents: decode calldata, flag drainers, return GO/HOLD/BLOCK.

7/7All passed58health of 100npmRuns locallyNoneno keys asked0.1.1
★ 1 io.github.oakallow/oakallow

Runtime permission, approval, and audit layer for AI agent tool execution.

3/3All passed45health of 100RemoteHostedNoneno keys asked1.1.0
io.github.delentia-labs/delentia-mcp

Advisory MCP tools: policy score, reasoning checklist, compression. To enforce, use delentia-guard.

7/7All passed52health of 100npmRuns locallyNoneno keys asked2.1.2
com.manusights/manusights

Check if references exist or were retracted, look up journal AI policies, and preview manuscripts.

4/4All passed45health of 100RemoteHostedNoneno keys asked1.1.0
★ 3 io.github.calllint/calllint

Static preflight safety gate for MCP servers — scan configs before you run them. Never executes.

7/7All passed65health of 100npmRuns locallyNoneno keys asked0.2.1
io.sylai/guardian

Causal guardrail: pass/caution/hold verdict on a causal claim before an agent acts.

4/4All passed45health of 100RemoteHostedNoneno keys asked0.3.0
★ 3 io.github.fitzyracing1/superuser

Permission-gated superuser (sysadmin) MCP agent with enterprise guardrails and audit.

7/81 warning47health of 100PyPIRuns locally3secrets asked0.1.0
★ 1 io.github.DeltaX-Public/deltax-preflight

Check finite candidate proposals against separate policy and evidence, with canonical hash receipts.

5/61 warning41health of 100MCPBRuns locallyNoneno keys asked0.1.0
io.github.Poseidon-t/safestreets

Walkability and pedestrian safety for any US address: scores, neighborhoods, deadly roads.

4/4All passed43health of 100RemoteHostedNoneno keys asked1.0.0
★ 1 ai.achromat/mcp-server

Recall and calibrate agent tool calls against verified policy lessons from Achromat MOM.

8/8All passed58health of 100npmLocal or hostedNoneno keys asked0.1.3
★ 2 io.github.brainsparker/frugal

The open routing layer for AI tools: tool calls routed per policy, decision on every result.

7/7All passed62health of 100npmRuns locallyNoneno keys asked0.2.0
io.github.nolll77/agentic-ops

Autonomous and governed SRE & MLOps control plane for AI agent platforms.

8/8All passed51health of 100PyPILocal or hostedNoneno keys asked0.1.14
★ 12 io.github.WYRE-AI/cipp-mcp

MCP server for CIPP — M365 multi-tenant management for MSPs (users, tenants, policies).

4/4All passed61health of 100DockerRuns locally1secret asked1.11.1
io.github.farssaadeldin7-ux/generative-digital-twin

Build a governed style profile from your own past work so a generative apprentice produces...

6/6All passed43health of 100MCPBRuns locallyNoneno keys asked0.1.3
io.github.farssaadeldin7-ux/diagnose-by-sound

Turn a described vehicle noise into a ranked, testable differential diagnosis with a safety...

6/6All passed43health of 100MCPBRuns locallyNoneno keys asked0.1.3
★ 1 io.github.stand-out-of-my-sun/diogenes-agent-guardrails-mcp

Autonomous agent guardrails, bash sandboxing, MCP rugpull diffing & prompt firewalls.

4/4All passed47health of 100RemoteHostedNoneno keys asked1.0.0
★ 30 io.github.7tg/django-admin-mcp

Django admin models over MCP: CRUD, actions, history, autocomplete — capped by Django permissions.

7/7All passed77health of 100PyPIRuns locallyNoneno keys asked0.11.1
★ 1 io.github.RostislavMatov/mcpcut

Journals every MCP tool call with secrets redacted; with a policy, holds risky calls for approval

6/71 warning48health of 100npmRuns locallyNoneno keys asked0.4.2
io.github.paul-salviani/trust-switchboard

Read public privacy policies: dated source excerpts, follow-up questions and change comparisons.

4/4All passed43health of 100RemoteHostedNoneno keys asked1.1.0
★ 8 io.github.industrial-aiops/iaiops

Governed OT data tap: 15 field protocols + cross-protocol RCA brain; audit + MOC gating.

7/7All passed55health of 100PyPIRuns locally1secret asked0.32.0
io.github.mikusnuz/iptime-mcp

Manage ipTIME routers through a local, safety-gated MCP server with firmware-aware capabilities.

7/7All passed55health of 100npmRuns locally2secrets asked0.2.2
★ 14 so.helio/helio

Open-source governance for MCP agents: useful autonomy without unlimited authority

7/7All passed67health of 100npmRuns locallyNoneno keys asked0.16.0
★ 1 io.github.Toraastrta/sphior-ai-governance-mcp

Record what your AI did as tamper-evident evidence for ISO 42001, EU AI Act and SOC 2. Hash-only.

7/7All passed57health of 100npmRuns locally1secret asked0.2.1
★ 2 io.github.stand-out-of-my-sun/diogenes-gateway

Autonomous AI microservices: 55 dynamic guardrails, contract audits & oracles via L402/x402/MPP.

4/4All passed58health of 100RemoteHostedNoneno keys asked1.2.0
io.github.bugiiiii11/rein

Spend limits for AI agents that pay with x402: every paywall is policy-checked before a cent moves.

7/7All passed60health of 100npmRuns locally2secrets asked0.8.0
★ 1 io.github.polymatx/opsgate

The safety gate between AI agents and your servers: typed, policy-checked, audited ops tools.

4/4All passed45health of 100DockerRuns locallyNoneno keys asked0.1.3

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