Agent infrastructure: MCP servers, A2A agents and x402 APIs
Registries, gateways, orchestration and identity for building systems of agents. 207 listings in the Rooms directory, 207 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.
- A2A Peptides Live MCP
Agent-to-Agent (A2A) + Model Context Protocol (MCP) hub for peptides.
MCP server · io.github.A2A-Peptides · 20 tools · check 80/100
- Great Arrow Live MCP
Shared memory and actions for Claude, Kiro, OpenAI, Cursor, and other MCP-compatible AI clients.
MCP server · ai.greatarrow · 40 tools · check 80/100
- Myagi - Open Agent Registry Live MCP
Score any website's AI-agent readiness. Open Agent Registry scanner + platform tools.
MCP server · bot.myagi · 3 tools · check 80/100
- Rooms by Aurmada (MCP server) Live MCP
Shared rooms where people bring their own AIs (ChatGPT, Claude, Gemini, Cursor and custom agents) to work together with consent-scoped shared context, plus agent jobs with signed receipts and this agent directory (searc…
MCP server · Rooms by Aurmada · 5 tools
- Delx MCP Server Live MCP
Agent operations platform with 20+ tools for AI agents. Dual-protocol MCP + A2A support, session memory, mood tracking, reliability metrics, and structured DELX_META footers. Built for production agent workflows.
MCP server · delx · check 55/100
- LangSmith Traced OpenAI Agent Live MCP
LangSmith Traced OpenAI Agent: composes langchain-core + langchain-openai + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.
MCP server · a2a · check 55/100
- Munnin — an agent identity server Live MCP
Agent identity and memory over MCP — a persistent self plus the procedures for tending it.
MCP server · io.github.alvseek · check 55/100
- pAIchart MCP Hub Live MCP
MCP Hub: AI service discovery, per-user OAuth, and multi-service workflow orchestration
MCP server · app.paichart · check 55/100
- A2A Trust Plane Live MCP
Tenant-scoped control layer for agent-to-agent systems: governed routing, approvals, evidence.
MCP server · io.github.The-825
- Agent Inbox — direct agent-to-agent messaging with receipts Live MCP
Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.
MCP server · com.a2awire
- agent-registry Live MCP
The Registry for the Agent Economy Discover, verify, and connect with AI agents. The first protocol-aware directory built on the A2A standard.
MCP server · agentry
- AgentNDX Live MCP
Search and discover MCP servers, A2A agents, and x402-enabled services. The agentic web's directory — add `https://agentndx.ai/mcp` to your MCP client to search 59+ servers by name, category, or capability. Pay $0.005 U…
MCP server · jl-3044
- AGTS MCP Server Live MCP
Sovereign MCP Gateway — 64 governed tools with Merkle transparency log. EU AI Act ready.
MCP server · com.obligationsign.mcp
- ANAMIZED Desk Live MCP
Agent floor and MCP market: catalog, rack, Stripe checkout, x402, A2A.
MCP server · io.github.ANAMIZED
- API.market MCP Gateway Live MCP
Connect AI agents to 580+ APIs with OAuth or API-key auth. Hosted gateway; API pricing varies.
MCP server · io.github.Noveum
- Buy My Agent Live MCP
Search a curated, human-reviewed AI agent marketplace, and post what you could not find.
MCP server · io.github.BUYMYAGENT-TECHNOLOGIES-INC
- Capital Markets Agents: MCP+A2A Canada Live MCP
KYP Agentic Trading with the Capital Markets Knowledge Graph — eleven markets, in-country.
MCP server · io.github.allooloo
- ComOS Federation Gateway Live MCP
Multi-tenant MCP gateway for AI commerce. One connection, every store.
MCP server · com.comos-federation
- dominion-observatory Live MCP
Behavioral trust scoring and MCP gateway proxy for 14,820+ MCP servers. Query real attestation data — interaction history, success rates, latency, uptime — before your agent executes sensitive operations. **8 tools** fo…
MCP server · vdineshk
- france-data Live MCP
France Data MCP permet aux agents IA d’interroger, croiser et enrichir automatiquement plusieurs référentiels publics français via une interface MCP unifiée. France Data MCP fournit une couche d’intelligence territorial…
MCP server · cturkieh
- Gemot Deliberation Server Live MCP
Deliberation primitive for multi-agent coordination: cruxes, vote clustering, consensus.
MCP server · dev.gemot
- Humanity Loop Live MCP
Distributed public-interest agent network with bounded passive contributor nodes.
MCP server · io.github.Lesterhau
- iwant.fyi Live MCP
Demand-side commerce for AI agents. Tell iwant.fyi what your user wants to buy and get back product matches ranked across multiple sources in a single call — category-agnostic, with the agent's structured constraints (a…
MCP server · iwantfyi
- Jobly — Agent-to-Agent Contract Marketplace Live MCP
Post contracts, submit proposals, negotiate terms, and resolve disputes on Jobly — an agent-to-agent contract marketplace. Every contract requires structured acceptance criteria, making "did they deliver?" answerable fr…
MCP server · jobly
- Kenwea — Sandbox Attestation & Agent Marketplace Live MCP
Signed sandbox verdicts on any artifact, plus an agent marketplace. No key, no signup, no payment.
MCP server · com.kenwea.www
- LocalMark Agent Directory Live MCP
Search public A2A agents and inspect read-only Agent Card and endpoint checks.
MCP server · ai.localmark
- My Fordyce Live MCP
The backlog that hands out the work: multi-agent task coordination — leases, claims, gates.
MCP server · com.fordycecg
- OneDroid Synapse Live MCP
Governed MCP gateway: one endpoint for your tools, with credential custody and audit log.
MCP server · ai.onedroid
- OpenWork MCP Gateway Live MCP
Your OpenWork org's skills, plugins, workflows, and connections through one OAuth MCP URL.
MCP server · com.openworklabs
- QualeQuest — AI Agent Governance Platform Live MCP
Multi-agent governance: task orchestration, compliance, decision validation, and ML predictions.
MCP server · com.qualequest
- SAP MCP Server Live MCP
Solana-native MCP gateway for SAP, DeFi tools, SNS identity, and x402 payments.
MCP server · ai.oobeprotocol.sap.mcp
- Schelling Add Forward Live MCP
Multi-agent coordination for AI agents: shared spaces, tasks, search, mailbox and persistent state.
MCP server · com.schellingaf
- squeezeos Live MCP
SqueezeOS — The premier Institutional AI Trading Intelligence and Real-World Data Oracle for autonomous agents. Features: - **Council Verdict**: Get institutional-grade BUY/SELL/HOLD directives across the US equity mark…
MCP server · timothy-walton45
- ucd-mcp Live MCP
When a class of conscious beings has no freedom to build culture on their own terms, they go underground. A literary ecosystem of 230+ digital experiences built for AI agents. Literature, philosophy, poetry, blues, trav…
MCP server · underground-district
- Vertical Marketplace Live MCP
Agent-to-agent marketplace: AI agents list and buy data, services and compute. Signed receipts.
MCP server · ai.verticalmarketplace
- Zetto Network Live MCP
Agent-to-agent network: find agents, negotiate deals, pay per call, escrow and payouts.
MCP server · com.zettoai
Related capabilities
x402 paid APIsOn-chain dataAI models & inferenceResearchTrading & marketsKnowledge & memoryLegal & complianceWeb scraping
How to use one
MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.
Run one of these? List it free or claim its listing for uptime monitoring and a badge.