MCP Registry Validator — Check Endpoints Actually Resolve is an MCP server with 4 tools an agent can call, among them check_mcp_endpoint, check_schema_drift, get_known_tools. It answers at https://mcp-uptime.theopslog.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 22 October 2026, succeeded.
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
check_mcp_endpoint | Probe an MCP endpoint right now: is it alive, which transport it speaks, how many tools it exposes, and whether its tool schema changed since the last check. Use before depending on a third-party MCP server. Inputs: url, include_tools |
check_schema_drift | Probe an MCP endpoint and diff its tool schema against the last stored snapshot: tools added, removed, or whose description/inputSchema changed. Schema drift fails quietly mid-run, which is why it is worth checking. Inputs: url |
get_known_tools | The tool list last observed at an MCP endpoint, with the timestamp of the most recent schema change. Reads stored history; does not probe. Inputs: url |
get_uptime | Uptime history for an MCP endpoint over the last N days (max 30), with incident windows. Reads stored history; does not probe. Inputs: url, days |
Every block below points at https://mcp-uptime.theopslog.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http mcp-registry-validator-check-end https://mcp-uptime.theopslog.workers.dev/mcp
{
"mcpServers": {
"mcp-registry-validator-check-end": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp-uptime.theopslog.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"mcp-registry-validator-check-end": {
"url": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}{
"servers": {
"mcp-registry-validator-check-end": {
"type": "http",
"url": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}{
"context_servers": {
"mcp-registry-validator-check-end": {
"url": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcp-registry-validator-check-end": {
"serverUrl": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcp-registry-validator-check-end": {
"url": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}name: MCP Registry Validator — Check Endpoints Actually Resolve
version: 0.0.1
schema: v1
mcpServers:
- name: MCP Registry Validator — Check Endpoints Actually Resolve
type: streamable-http
url: https://mcp-uptime.theopslog.workers.dev/mcp{
"mcpServers": {
"mcp-registry-validator-check-end": {
"httpUrl": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcp-registry-validator-check-end": {
"type": "http",
"url": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcp-registry-validator-check-end": {
"url": "https://mcp-uptime.theopslog.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp-uptime.theopslog.workers.dev%2Fmcp&type=streamable_http&id=mcp-registry-validator-check-end&name=MCP%20Registry%20Validator%20%E2%80%94%20Check%20Endpoints%20Actually%20Resolve
It answered our last check on 22 October 2026 in 140 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
4, as returned by the server's own tools/list on 17 September 2026: check_mcp_endpoint, check_schema_drift, get_known_tools, get_uptime.
It answered our last check on 22 October 2026 in 140 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp-uptime.theopslog.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.operatorsheets. Endpoint host: mcp-uptime.theopslog.workers.dev. ARD identifier: urn:air:io.github.operatorsheets:mcp:mcp-uptime.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.