io.github.agentwares/mcp-liveness
https://agentwares-mcp-liveness.vercel.app/mcp ↗
Description
Whether a stock client can actually use an MCP server from the registry. Free, no key.
What our measurements say
io.github.agentwares/mcp-liveness is a remote MCP server published at agentwares-mcp-liveness.vercel.app. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 326 ms, placing it among the faster endpoints. It offers a narrow, focused set of 2 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names clearly indicate their purpose (e.g., 'liveness_check' vs. 'explain_outcomes')
- Parameters are well-defined with required/optional status
- Descriptions explain usage context (e.g., 'when to call this tool')
Weaknesses
- First tool's description mentions only 2 outcomes but claims to report 6 in the second tool
- Error handling details (e.g., 401/403) are not fully elaborated
- No explicit mention of rate limits or connection timeout handling
mcp_liveness_check— Description mentions 2 outcomes but second tool claims 6 possible outcomesmcp_liveness_explain_outcomes— No explicit error handling details in description
Verdict
Event narrative
Risk: low
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 155ms → warm 182ms (penalty 0ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
mcp_liveness_checkGiven a server's exact name in the official MCP registry, make one `initialize` call to the endpoint its listing names and report what a client with no credential gets. Outcomes: `usable` (it connected and negotiated a protocol version), `needs_credential` (401 or 403 — the answer then says whether a credential can be obtained in-band or whether a person has to create one), `charged` (402, access is for sale), `unreachable` (the listed endpoint is not an MCP server: wrong URL, dead host, or a 200 that is not JSON-RPC), `local_only` (no remote endpoint; it must be spawned as a process), and `not_listed` (no server with that exact name). Call this before spending a call on a server you found in the catalogue. Roughly two in five remote listings do not answer a stock client.
namestringrequiredskipCredentialCheckboolean
mcp_liveness_explain_outcomesReturn the six outcomes this server can report, what each means for an agent choosing a server from the registry, and what to do next for each. Makes no request and costs nothing; call it once to interpret mcp_liveness_check results.
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
Get your badge
Add this badge to your README — it updates automatically as measurements change.
[](https://mcpmetrics.io/servers/io-github-agentwares-mcp-liveness)<a href="https://mcpmetrics.io/servers/io-github-agentwares-mcp-liveness"><img src="https://mcpmetrics.io/badge/io.github.agentwares/mcp-liveness/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
Sign up free to seeSimilar MCP servers
The catalog entries whose name and description are closest to this one, found with the same index the search box uses.
- UK Property & Business Intelligence MCP Server from MCPBundlesmcp.mcpbundles.com
Search UK companies, land registry prices, charities, OS locations, and traffic data
- UK Case Law MCP Server from MCPBundlesmcp.mcpbundles.com
Search UK court judgments and tribunal decisions from the National Archives
- UK Hansard MCP Server from MCPBundlesmcp.mcpbundles.com
Search Parliamentary questions and motions from UK House of Commons
- UK Environmental Intelligence MCP Server from MCPBundlesmcp.mcpbundles.com
Access UK flood warnings, river levels, water quality, Met Office forecasts, and carbon data
- UK Constituencies MCP Server from MCPBundlesmcp.mcpbundles.com
Search UK parliamentary constituencies by name, get boundaries and ONS codes
- UK Court Finder MCP Server from MCPBundlesmcp.mcpbundles.com
Find UK courts and tribunals by location, name, or law area with addresses and contacts
Comments
Sign in to write a comment
No comments yet. Be the first.