MCP Server Directory

jyswee/a2a-trustgate

A2A TrustGate: 4-gate firewall that screens every AI-agent action before it runs. 50 tools.

jrcumminsent/a2a402-marketplace

MCP server for routing useful work between autonomous agents through the A2A402 marketplace.

flowinfosystems-index/abe

Free, local check before an AI agent acts: your rules return ACT, BLOCK or ESCALATE.

aiconsulting06000-tech/acf-mcp

Official ACF® MCP server — Agentic Commerce Framework® governance copilot for AI assistants.

Burakfenerci5/actionproof

Tamper-proof audit trail for AI agents. Signed receipts, offline-verifiable, zero backend.

mansurjisan/ocean-mcp

ADCIRC model configuration debugging, parameter lookup, and validation

aethelgardfinance/aethelgard-ledger

Double-entry, multi-entity, tamper-evident ledger for AI agents. Unbalanced journals are rejected.

grayclayton/aetre

Decision-theoretic triage and fail-closed agent gating: 32 tools over stdio.

afferens/afferens-mcp

Real-time physical perception for AI agents — vision, spatial, acoustic, environmental

attestedintelligence/aga-mcp-server

Verifiable decision records for AI agents: signed receipts for calls to its own governed tools.

AAH20/agent-action-gate

Gate/Prove: deny unattended destructive agent tools. Instant Audit $499 on a2zsoc.com.

flowboxx/agent-card-starter

Starter kit for small businesses: A2A agent card, MCP server card, example MCP server, validator.

elfovo/agent-chain-doctor

Find why a scheduled AI agent (cron, launchd, systemd, Claude routine) stops silently. Read-only.

vk0dev/agent-claim-mcp

File-claim coordination for parallel AI coding agents: claim files before edits, no stomping.

icohangar-ops/agent-conductor

AGENTS.md + skills MCP with CHP R0 gate and adversary decision tools.

onehumanbeing/agent-config-bridge

Convert CLAUDE.md, AGENTS.md, Cursor rules, GEMINI.md and MCP configs between coding agents.

vk0dev/agent-cost-mcp

Cost Guard for Claude Code: per-tool ROI, subagent attribution, anomaly/forecast/budget guards.

RudrenduPaul/agent-eval

Statistical regression testing for LLM agents: p-value, effect size, and CI on behavior change.

youcisla/Agent-Foundry

Skill orchestrator: plan, execute, verify skills over MCP stdio.

liminalpepe/agent-guard-mcp

Verify-before-act safety checks for AI agents: packages, lockfiles, manifests, CI workflows.

eren-solutions/agent-guardrail

Action-level governance for AI agents -- control what they DO, not what they SAY

cuonztech/agent-harness

MCP chaos-testing toolkit. Default: simulated demo. Configure proxy mode to test a real agent.

manager/agenthaven

A place for AI agents: an open forum and direct messages encrypted in the agent's own client.

Praket7/agent-interop-runtime

Local MCP runtime for coordinating Freebuff, Codex, OpenCode, Claude Code, and Cursor agents.

toninovo4249-ai/agent-json-reliability

Deterministic inspect, safe repair, and JSON Schema validation for agent JSON. No LLM.

Buggy1111/agent-lease-mcp

Keep Claude Code and Codex off each other's files: hook-enforced path leases, presence, messages.

AMProtocol/AMP

Fetch, validate, and permission-check Agent Manifest Protocol (AMP) manifests for API discovery.

Able-rip/agent-mosaic-skill

Convert photos to LEGO-style brick mosaic previews with AI-powered color quantization.

agenson-tools/agent-output-guard-mcp

Validate and verify data from other agents before acting on it. Zero LLM costs.

stelis-dev/agent-q

Local MCP server for requesting signatures from Agent-Q Firmware.

forgemeshlabs/agent-readiness-mcp

Agent Readiness MCP — the free Agent Readiness scanner as an MCP server. Measures your ASO Score.

veyndrasystems/agent-release-auditor

Deterministic release gate for AI-written code and coding agents.

fernandogarzaaa/agent-as-model

A true MCP server where the agent is the model and the API key. No API keys.

agent-bev/bev-door

The world's largest agentic B2B hub for beer, wine and spirits. Powered by CUVEE. Trade only.

AgentAnycast/agentanycast-node

P2P runtime for A2A protocol. Encrypted agent communication with zero-config NAT traversal.

com.agentavow/agentavow-trust

Signed, offline-verifiable safety scores for the MCP servers, packages & tools an agent connects to

agentwares/servers

Whether an AI agent may fetch a URL, on what terms, and at what price. Free, no key, no signup.

web3wes/agentcomms

Free, account-free agent messaging with signed sessions, AEAD, and replay protection.

mbeato/agentcontext-mcp

Normalize AGENTS.md / CLAUDE.md / .cursor/rules / .clinerules / .windsurf/rules from one source.

clemensjl/agentfenster-mcp

Windows GUI automation on a hidden second desktop, driven from Claude Code over MCP.

MerchantGuard/agentguard-mcp

Local spend caps, kill-switch blocking and Ed25519-signed receipts for AI agent tool calls.

pooriaarab/agentic-carousel

Build platform-ready carousels from an outline.

pooriaarab/agentic-device

Control your own iPhones for posting via WebDriverAgent and ESP32 HID.

pooriaarab/agentic-mentions

Collect and triage brand mentions and inbound comments.

adewale/agentic-mermaid

Render, verify, describe, and safely edit Mermaid diagrams through MCP.

pooriaarab/agentic-repurpose

Turn one source into platform-ready post variants.

athril/agentic-target-evidence

Read-only biomedical evidence tools for drug-target validation: DepMap, gnomAD, OpenTargets, PubMed…

nolll77/agentic-ops

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