MCP server

Liveness

io.github.agentwares/mcp-liveness

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Does an MCP server work for a stock client? By registry name or URL. Tool drift too. Free, no key.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

5

Token cost

About 2,352 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mcp-liveness https://agentwares-mcp-liveness.vercel.app/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mcp-liveness]
url = "https://agentwares-mcp-liveness.vercel.app/mcp"

Gemini CLI

{"mcpServers":{"mcp-liveness":{"httpUrl":"https://agentwares-mcp-liveness.vercel.app/mcp"}}}

Cursor

{"mcpServers":{"mcp-liveness":{"url":"https://agentwares-mcp-liveness.vercel.app/mcp"}}}

VS Code

{"servers":{"mcp-liveness":{"type":"http","url":"https://agentwares-mcp-liveness.vercel.app/mcp"}}}

Antigravity

agy mcp add mcp-liveness https://agentwares-mcp-liveness.vercel.app/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mcp-liveness","server_url":"https://agentwares-mcp-liveness.vercel.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mcp-liveness","server_url":"https://agentwares-mcp-liveness.vercel.app/mcp"}

Tools

• mcp_liveness_check ~618 tokens
  Makes one handshake with an MCP server's endpoint — `server/discover` at protocol revision 2026-07-28, then `initialize` for a server on the older revision — with no credential, and reports what a stock client gets. The server is named either by its exact official-registry `name`, or by its endpoint
• mcp_liveness_check_apps ~606 tokens
  Checks a remote MCP server's MCP Apps UI (SEP-1865 `ui://` resources) from outside, with no credential and without calling any tool, and returns the first step that stops the view rendering, whose it is (`server`, or `host` for a known host bug with its issue URL), the fix, and the source (the spec,
• mcp_liveness_check_auth ~532 tokens
  Walks a remote MCP server's OAuth sign-in chain from outside, with no credential and no client registration, and returns the first step that breaks, whose it is (`server`, `identity_provider`, or `client` for a known client bug, with its issue URL), the fix, and the spec section that requires it. S
• mcp_liveness_drift ~450 tokens
  Given a server's exact name in the official MCP registry, reports which of its tools were added, removed, or had their description, input schema or output schema change between a named month and the latest monthly snapshot. Useful when a server that worked before behaves differently now, when a pro
• mcp_liveness_explain_outcomes ~146 tokens
  Returns the six outcomes this server can report — usable, needs_credential, charged, unreachable, local_only and not_listed — what each means for an agent choosing a server from the registry, and the usual next move for each. A static reference: it makes no network request and its answer never chang

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