A2a Trustgate is listed as active in the registry but did not answer our last check. 84 installs a week from npm. Last commit 8 Aug 2026.
A2A TrustGate: 4-gate firewall that screens every AI-agent action before it runs. 50 tools.
What the code does
We read the source, 5 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
этот файл ставится пользователю, но в репозитории его нет
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.
claude mcp add a2a-trustgate --transport sse https://mcp.a2ainfrastructure.com/ssehttps://mcp.a2ainfrastructure.com/sse[mcp_servers.a2a-trustgate]
url = "https://mcp.a2ainfrastructure.com/sse"{
"mcpServers": {
"a2a-trustgate": {
"url": "https://mcp.a2ainfrastructure.com/sse"
}
}
}{
"servers": {
"a2a-trustgate": {
"type": "sse",
"url": "https://mcp.a2ainfrastructure.com/sse"
}
}
}Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcp.a2ainfrastructure.com/sse | sse | answering | 247 ms | 4 min ago |
Alternatives to A2a Trustgate
same job, measured the same wayMCP proxy that checks every tools/call against Agent Trust policy, with evidence, before it runs.
Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.
MCP enforcement layer that intercepts AI agent actions and blocks rule violations before execution.
AI Agent Firewall. Enforce signed authority before consequential actions. Free API key required.
Ask if an action is safe before your agent runs it: injection, shell, MCP installs. Free samples.
The trust harness for AI agents. Set what an agent can do before it acts.
Materials simulations for AI agents over MCP: binding token quote before every run, record after it.
An AI agent's trading mandate it can't break: checked before every order, reasoning sealed in IRL.
A2a Trustgate — questions
Answers built from our own checks of this server.