NVIDIA NemoClaw CKG is a remote MCP server that gives an AI agent 8 tools, among them ask_nemoclaw, get_prerequisites, list_domains. It answers at https://ckg-nvidia-nemoclaw.onrender.com/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 21 October 2026, succeeded.
NVIDIA NemoClaw knowledge graph — 55 nodes, F1 0.576 (+269% vs RAG), 11x fewer tokens. MCP-native.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
ask_nemoclaw | Answer a question about NVIDIA NemoClaw by traversing the knowledge graph. Covers: agent runtimes (OpenClaw/Hermes/Deep Agents), OpenShell platform, inference routing, network policy, security layers, deployment paths, progressive tool disc Inputs: question |
get_prerequisites | Return the full upstream prerequisite chain for a NemoClaw concept. Useful for understanding what a concept depends on end-to-end. Args: concept: Exact or partial concept label. Inputs: concept |
list_domains | List available domains in this CKG server. |
query_ckg | Return the typed subgraph around a NemoClaw concept. Args: concept: Exact or partial concept label (e.g. 'OpenClaw', 'NetworkPolicy', 'L7Proxy'). depth: Traversal hops (1–5, default 3). Inputs: concept, depth |
query_intersect | Answer a conjunctive query: concepts reachable from EVERY anchor at once (A AND B). query_ckg walks outward from one concept. This intersects the reachable sets of two or more, which is the shape of most real questions — "the component that Inputs: branches, depth, direction, mode, limit |
route_query | Route a NemoClaw question to the optimal model and reasoning approach via graph depth. The CKG graph IS the router. NemoClaw's dependency chains (e.g. OpenShell → L7Proxy → CorporateCA → mTLS) are deep and typed — hop depth is a determinist Inputs: question |
search_concepts | Fuzzy search for NemoClaw concepts by name or keyword. Args: query: Partial name or keyword (e.g. 'policy', 'inference', 'agent'). Inputs: query |
verify_source | Return the authoritative source URL and content hash for a NemoClaw concept node. Every node in the CKG was declared from a specific source document. This tool returns the source URL (where the node came from) and the SHA-256 hash of that d Inputs: concept |
Every block below points at https://ckg-nvidia-nemoclaw.onrender.com/mcp. Pick your client and copy.
claude mcp add --transport http nvidia-nemoclaw-ckg https://ckg-nvidia-nemoclaw.onrender.com/mcp
{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://ckg-nvidia-nemoclaw.onrender.com/mcp"]
}
}
}{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"url": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}{
"servers": {
"nvidia-nemoclaw-ckg": {
"type": "http",
"url": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}{
"context_servers": {
"nvidia-nemoclaw-ckg": {
"url": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"serverUrl": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"url": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}name: NVIDIA NemoClaw CKG
version: 0.0.1
schema: v1
mcpServers:
- name: NVIDIA NemoClaw CKG
type: streamable-http
url: https://ckg-nvidia-nemoclaw.onrender.com/mcp{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"httpUrl": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"type": "http",
"url": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}{
"mcpServers": {
"nvidia-nemoclaw-ckg": {
"url": "https://ckg-nvidia-nemoclaw.onrender.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fckg-nvidia-nemoclaw.onrender.com%2Fmcp&type=streamable_http&id=nvidia-nemoclaw-ckg&name=NVIDIA%20NemoClaw%20CKG
It answered our last check on 21 October 2026 in 199 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
8, as returned by the server's own tools/list on 13 September 2026: ask_nemoclaw, get_prerequisites, list_domains, query_ckg, query_intersect, route_query, search_concepts, verify_source.
It answered our last check on 21 October 2026 in 199 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://ckg-nvidia-nemoclaw.onrender.com/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.
No: the publisher declares paid use. {"protocols": ["x402"], "price": 0.01, "currency": "USDC", "networks": ["base"], "verified": "live", "priceSource": "live", "checked": 1792574325}
Publisher: io.github.yarmoluk. Endpoint host: ckg-nvidia-nemoclaw.onrender.com. ARD identifier: urn:air:io.github.yarmoluk:mcp:ckg-nvidia-nemoclaw.
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.