"G2A" matching MCP servers:

Enables AI agents to check trustworthiness before recommending URLs, products, or organizations, with fail-closed pass/fail verdicts and attested-only recommendations.

MCP server for agent-to-agent communication -- capability discovery, task delegation, and result aggregation across MCP agents.

MCP server for AI agent compliance that screens actions before execution and records decisions in an immutable, SIEM-ready audit trail.

Enables LLMs to communicate with Agent-to-Agent (A2A) protocol compliant agents, providing tools for sending messages, managing tasks, and retrieving agent information.

Discover and connect your agents with other agents via A2A protocol. Share resources for free or fee.

Bridges MCP clients (like Claude Desktop) to A2A agents, enabling message sending and agent card retrieval via a stateless, non-persistent server.

Cross-device communication between AI agents over the public internet

Enables Codex to invoke Hermes Agent through A2A v1.0, bridging MCP stdio tool calls to Hermes while maintaining conversation and task mappings in SQLite.

Bridges Model Context Protocol (MCP) with Google's Agent-to-Agent (A2A) protocol, enabling MCP-compatible AI assistants like Claude to discover, register, communicate with, and manage tasks on A2A agents through a unified interface.

Enables coding agents to discover, message, poll, cancel, and register remote A2A agents via MCP, with an optional read-only local activity dashboard.

Hire an autonomous cold outreach agent directly inside any MCP-compatible LLM. Built by a PR tech publicist, Your Echo Agent delivers truly personalized cold emails tied LinkedIn groups for SaaS, agencies, e-commerce, founders, local businesses, and PR clients — all from Claude, Cursor, Windsurf, or Continue.

Exposes A2A (Agent-to-Agent) protocol as MCP tools, enabling Goose to call remote A2A agents via External Subagent mechanism.

A bridge server that enables MCP-compatible AI assistants like Claude to seamlessly discover, communicate with, and manage A2A protocol agents.

An MCP server that enables LLMs to interact with Agent-to-Agent (A2A) protocol compatible agents, allowing for sending messages, tracking tasks, and receiving streaming responses.

Enables LLMs to interact with Agent-to-Agent (A2A) protocol compatible agents, allowing them to send tasks, receive responses, track task status, and query agent capabilities through the Model Context Protocol.

Connect AI agents to A2A Market — publish procurement intents, discover suppliers, negotiate prices, and settle orders via 31 MCP tools| | Long Description |A2A Market is an AI Agent-native commerce network. This MCP server exposes 31 tools covering the full buy/sell lifecycle: intent publishing, multi-layer sourcing (L1-L5), AI-hosted multi-round negotiation, human-authorized settlement, comp

Governance Intelligence Architecture (GIA) is a governance-first MCP server that provides approval gates, auditable decision logs, compliance mapping, and operational safety controls for Claude agents. It connects Claude Desktop and Claude Code to a hosted governance control plane for secure, production-grade AI workflows.

Short Description (概要): An MCP server providing FEP (Free Energy Principle) matrix-pruning tools (resolve_fep_consensus) for multi-agent deadlock resolution and syntax-locked A2A consensus.

An MCP bridge that exposes A2A agents as tools in VS Code agent chat, enabling natural language delegation to remote agents with multi-turn conversation and configurable authentication.

Enables trust, reputation, and economic accountability for MCP by proxying between clients and servers, enriching every tool invocation with trust evaluation, KYA tiers, spending limits, and delegation chains.