M2M Sentinel is answering right now. Last checked 10 min ago. 54 installs a week from npm. It exposes 6 tools. Last commit 6 Oct 2026.
Base bytecode capability observations, proxy resolution, gas, DEX, and transfer telemetry.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 August 2026. No other catalogue keeps this.
We read the source, 10 h ago · tools taken from the live server · rules 995398eba69f
Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.
empty_user_npmrc="$RUNNER_TEMP/sdk-release-output/empty-user.npmrc"
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
Over the last week it answered 44.5% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.
claude mcp add m2m-sentinel-sdk --transport http https://api.m2msentinel.com/mcp
https://api.m2msentinel.com/mcp
[mcp_servers.m2m-sentinel-sdk]
url = "https://api.m2msentinel.com/mcp"
{
"mcpServers": {
"m2m-sentinel-sdk": {
"url": "https://api.m2msentinel.com/mcp"
}
}
}
{
"servers": {
"m2m-sentinel-sdk": {
"type": "http",
"url": "https://api.m2msentinel.com/mcp"
}
}
}
This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
m2m_audit_contract
m2m_get_dex_liquidity
m2m_get_gas_metrics
m2m_get_service_status
m2m_get_token_price
m2m_get_whale_signals
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://api.m2msentinel.com/mcp | streamable-http | answering | 208 ms | 10 min ago |
| https://api.m2msentinel.com/sse | sse | answering | 435 ms | 10 min ago |
Public DNS, certificate transparency, and identity observations.
Public DNS, certificate transparency, and identity observations.
Self-healing proxy for MCP servers with retry, circuit breaker, and observability
An MCP server that provides bazaarvoic JOLT transformation capabilities.
MCP server for Langfuse LLM observability — trace and observation analysis.
GEO brand visibility and AI citation evidence. Free capability discovery and request matching.
Agent observability via OpenTelemetry: drift, loop and hijack alerts, e.g. after a prompt injection.
Production telemetry for NestJS apps: traces, errors, regressions, jobs and alerts.
Answers built from our own checks of this server.