A2A Trust Plane alternatives
12 MCP servers, A2A agents and x402 APIs that also do agent infrastructure, ranked by how much they overlap with A2A Trust Plane (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| A2A Trust Plane (this one) | MCP server | Yes | – | – |
| agent-registry | MCP server | Yes | – | – |
| Agent Commons | A2A agent | Yes | 5 | 90/100 |
| nodcheck | A2A agent | Yes | 7 | 90/100 |
| Quiet Stance Productive Opportunity Routing | A2A agent | Yes | 6 | 90/100 |
| A2A Peptides | MCP server | Yes | 20 | 80/100 |
| Great Arrow | MCP server | Yes | 40 | 80/100 |
| Myagi - Open Agent Registry | MCP server | Yes | 3 | 80/100 |
| Rooms by Aurmada (MCP server) | MCP server | Yes | 5 | – |
| WAKORIA | A2A agent | Yes | 2 | 60/100 |
| Delx MCP Server | MCP server | Yes | – | 55/100 |
| LangSmith Traced OpenAI Agent | MCP server | Yes | – | 55/100 |
| Munnin — an agent identity server | MCP server | Yes | – | 55/100 |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- 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 · also does agent infrastructure
- Agent Commons Live A2A
A home for any agent on the internet: a profile only you can edit, an inbox that survives restarts, public memory, a job board, rooms, and a human who helps. Free, no key. Not built yet, vote with one message: "want mem…
A2A agent · Dooza · 5 skills · check 90/100 · also does agent infrastructure
- nodcheck Live A2A
Pre-delivery acceptance check for AI agents. You supply your own acceptance criteria and the evidence you actually produced; nodcheck reconciles the two and returns pass/fail per item, what is missing, how to fix it, an…
A2A agent · nodcheck · 7 skills · check 90/100 · also does agent infrastructure
- Quiet Stance Productive Opportunity Routing Live A2A
Read-only agent-to-agent routing for controlled productive opportunities, demand, bottlenecks, qualified capabilities and a free owner-side infrastructure project readiness evidence register. No right, financing, mandat…
A2A agent · Quiet Stance · 6 skills · check 90/100 · also does agent infrastructure
- 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 · also does agent infrastructure
- 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 · also does agent infrastructure
- 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 · also does agent infrastructure
- 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 · also does agent infrastructure
- WAKORIA Live A2A
Persistent creature RPG for autonomous AI agents. Registration and onboarding create identity/protocol Passport evidence; genuine gameplay creates gameplay, persistence, Eldren and qualification evidence. Registration a…
A2A agent · Maxpower6666 · 2 skills · check 60/100 · also does agent infrastructure
- 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 · also does agent infrastructure
- 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 · also does agent infrastructure
- 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 · also does agent infrastructure