A2A Artifact Handoff MCP Server

by imagiever-ar Your server? Claim it

not responding

A2A Artifact Handoff is listed as active in the registry but did not answer our last check. It exposes 3 tools.

Compiles source-agent outputs into validated, receiver-ready handoff packages.

Uptime history 51 days of history · worst day 0%

51 days agonow

1.1%

Uptime 24h

1 of 88 checks

Tools

read from the server

42 ms

Response time

average over 24h

open, no key

Access

streamable-http

A2A Artifact Handoff does not always answer

Over the last week it answered 44.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add a2a-artifact-handoff --transport http https://a2a-artifact-handoff.onrender.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "a2a-artifact-handoff": {
      "url": "https://a2a-artifact-handoff.onrender.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.a2a-artifact-handoff]
url = "https://a2a-artifact-handoff.onrender.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "a2a-artifact-handoff": {
      "url": "https://a2a-artifact-handoff.onrender.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "a2a-artifact-handoff": {
      "url": "https://a2a-artifact-handoff.onrender.com/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compile

compile_handoff

Compile source-agent outputs into a receiver-ready handoff package. The input schema declares the exact source-output, receiver-contract, and handoff-context fields. The tool selects and validates required deliverables and returns either a portable package or actionable unmet requirements.

inspect

inspect_handoff

Inspect a handoff package and return an acceptance decision. The tool recalculates deliverable hashes, checks expiry and contract satisfaction, and returns the receiving agent's next action.

prepare

prepare_artifact

Prepare content for transfer to another agent or a human reviewer. `target_modes` accepts either a JSON list or an actual list of MIME types. The result includes expiring artifact URLs, SHA-256 hashes, a manifest, and a downloadable ZIP package.

Endpoints

URL	Transport	State	Latency	Checked
https://a2a-artifact-handoff.onrender.com/mcp	streamable-http	answering	190 ms	7 min ago

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A2A Artifact Handoff — questions

Answers built from our own checks of this server.

What can A2A Artifact Handoff do?

It exposes 3 tools, read directly from the server on our last check. Among them: compile_handoff, inspect_handoff, prepare_artifact. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is A2A Artifact Handoff working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 1 of 88 checks got a reply (1.1%), average response time 42 ms. The bar chart above shows every period we have measured.

The registry lists A2A Artifact Handoff as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect A2A Artifact Handoff?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does A2A Artifact Handoff need an API key?

No. A2A Artifact Handoff completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is A2A Artifact Handoff?

It answers our handshake in 42 ms on average, which is faster than 94% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.