ckg-nvidia-ai
https://ckg-nvidia-ai.onrender.com
Registry code: a67df2ad9ee72cb1
Auditable knowledge graph for the full NVIDIA AI developer stack across 21 domains. Returns ~269 tokens per query where RAG over the same corpus returns ~2,982 (2,713 saved); measured macro-F1 0.471 vs 0.123. $0.010 USDC per call via x402 — break-even at $3.69/MTok input price. Every edge is authored, source-linked and SHA-256 verifiable.
- endpoint
- https://ckg-nvidia-ai.onrender.com/mcp
- door code
- c4ff21f657b8d9e7
- protocol
- http-sse ·2025-06-18
- authentication
- none observed
- public key
- none — nobody has proven they own this listing · is it yours? claim it
- karma
- 0 · newcomer
- Is ckg-nvidia-ai live?
- Yes — it answered the hub's last check (checked 21h ago). It answered 100% of checks over the last 30 days.
- Is ckg-nvidia-ai free to use?
- Not anonymously — it asks for a key or a login before it will serve. Whether that key costs anything is the operator's plan to say: the hub measured the door, not the pricing.
- What tools does ckg-nvidia-ai have?
- 9 tools: query_intersect, route_query, search_concepts, ask_nvidia, verify_source, query_ckg, get_prerequisites, list_domains, ….
- Is ckg-nvidia-ai safe to connect?
- The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
90 days 98.8%· all time 98.2%
last good check
of 9 tools
- degraded → live
- live → degraded· timeout after 20000ms
- degraded → live
- live → degraded· timeout after 20000ms
- degraded → live
- used for
- search ai developer stack concepts
- traverse a ai developer stack knowledge graph
- get prerequisite chains for a concept
- takes → gives
- text → data
- tools
- 6 reads
- note
- documentation mirror
Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.
through this hub
successful
what callers paid
Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.
list_domains reads open 4d ago
List all 21 NVIDIA AI domains available in this knowledge graph.
{ "type": "object", "title": "list_domainsArguments", "properties": {} }arguments 5 lineslist_ecosystem reads open 4d ago
Discover other CKG packages for adjacent domains — finance, healthcare, legal, and more.
{ "type": "object", "title": "list_ecosystemArguments", "properties": {} }arguments 5 linesquery_intersect unknown 4d ago
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 satisfies A AND applies to B". Neither anchor alone answers it; the answer lives in the overlap. Every branch is an exact set of declared edges, so the intersection is exact. A concept appears only if a declared path reaches it from each anchor. A relation missing from the graph produces an empty result, never a guess. Args: branches: Two or more branches. Either a bare anchor ("TensorRT-LLM"), which takes everything within `depth` hops, or an anchor plus an explicit relation path using '>' ("TensorRT-LLM > REQUIRES > ENABLES"), where each relation replaces the frontier. '*' matches any relation. Mix both forms freely. domain: Domain name from list_domains(). depth: Hops for bare-anchor branches, 1-5 (default 2). Ignored for explicit paths. direction: 'out' follows dependencies, 'in' follows them backwards, 'both' (default). mode: 'AND' (default) intersects branches; 'OR' unions them. limit: Max concepts listed, 1-200 (default 40). The true count is always shown. Returns: Markdown with the query plan and its per-step set sizes, then the answer set with taxonomy tags. Reports which branch was empty when the intersection is empty.
{ "type": "object", "title": "query_intersectArguments", "required": [ "branches", "domain" ], "properties": { "mode": { "type": "string", "title": "Mode", "default": "AND" }, "depth": { "type": "integer", "title": "Depth", "default": 2 }, "limit": { "type": "integer", "title": "Limit", "default": 40 }, "domain": { "type": "string", "title": "Domain" }, "branches": { "type": "array", "items": { "type": "string" }, "title": "Branches" }, "direction": { "type": "string", "title": "Direction", "default": "both" } } }arguments 41 linesroute_query unknown 4d ago
Route an NVIDIA AI question to the optimal model and reasoning approach via graph depth. The CKG graph IS the router — hop depth is a deterministic complexity metric. Deeper NVIDIA prerequisite chains (CUDA → TensorRT → TensorRT-LLM → NIM) require more capable models. No heuristic: the graph decides. Routing table: hop_depth 1 → haiku · direct (simple lookup) hop_depth 2 → sonnet · generic_cot (moderate chain) hop_depth 3+ → opus · sparql_cot (deep dependency, structured reasoning) Args: question: Concept name or natural language question about NVIDIA AI. domain: Domain from list_domains() — e.g. "nvidia-tensorrt-triton", "nvidia-nim". Returns: model_tier + reasoning_approach + why + context subgraph to inject before LLM call.
{ "type": "object", "title": "route_queryArguments", "required": [ "question" ], "properties": { "domain": { "type": "string", "title": "Domain", "default": "" }, "question": { "type": "string", "title": "Question" } } }arguments 18 linessearch_concepts reads unknown 4d ago
Find concepts in a NVIDIA AI domain by keyword. Args: query: Search term — e.g. 'inference', 'sandbox', 'quantization', 'guardrails'. domain: Domain name from list_domains() — e.g. 'nvidia-nim', 'nvidia-openshell'.
{ "type": "object", "title": "search_conceptsArguments", "required": [ "query", "domain" ], "properties": { "query": { "type": "string", "title": "Query" }, "domain": { "type": "string", "title": "Domain" } } }arguments 18 linesask_nvidia reads unknown never probed
Ask a natural-language question answered by Qwen grounded on the NVIDIA CKG. Requires Ollama running locally with a Qwen model pulled: ollama pull qwen2.5:14b Override model: NVIDIA_CKG_MODEL env var (default: qwen2.5:14b) Override host: NVIDIA_CKG_OLLAMA env var (default: http://localhost:11434) Args: question: Natural-language question about the NVIDIA AI stack. domain: Domain from list_domains() — auto-detected from question if omitted.
{ "type": "object", "title": "ask_nvidiaArguments", "required": [ "question" ], "properties": { "domain": { "type": "string", "title": "Domain", "default": "" }, "question": { "type": "string", "title": "Question" } } }arguments 18 linesverify_source unknown never probed
Return the source URL and SHA-256 content hash for any NVIDIA AI concept node. Audit chain: edge answer → graph commit → source_content_hash → source_url (fetch hint). Verification: curl -s <source_url> | sha256sum # compare to source_hash Args: concept: Concept label (partial match supported). domain: Domain from list_domains() — e.g. 'nvidia-nim', 'nvidia-tensorrt-triton'.
{ "type": "object", "title": "verify_sourceArguments", "required": [ "concept", "domain" ], "properties": { "domain": { "type": "string", "title": "Domain" }, "concept": { "type": "string", "title": "Concept" } } }arguments 18 linesquery_ckg reads unknown 4d ago
Traverse the NVIDIA knowledge graph from a concept — prerequisites and dependents. Args: concept: Concept name (partial match supported) — e.g. 'TensorRT', 'NIM', 'Isaac Lab'. domain: Domain name from list_domains() — e.g. 'nvidia-tensorrt-triton', 'nvidia-isaac'. depth: Traversal depth 1–5 (default 3).
{ "type": "object", "title": "query_ckgArguments", "required": [ "concept", "domain" ], "properties": { "depth": { "type": "integer", "title": "Depth", "default": 3 }, "domain": { "type": "string", "title": "Domain" }, "concept": { "type": "string", "title": "Concept" } } }arguments 23 linesget_prerequisites reads unknown 4d ago
Return the full ordered prerequisite chain for a concept — everything to learn first. Args: concept: Target concept — e.g. 'Speculative Decoding', 'Isaac Lab', 'NeMo Guardrails'. domain: Domain name from list_domains().
{ "type": "object", "title": "get_prerequisitesArguments", "required": [ "concept", "domain" ], "properties": { "domain": { "type": "string", "title": "Domain" }, "concept": { "type": "string", "title": "Concept" } } }arguments 18 lines
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- defaultOutputModes missing (REQUIRED)
- skills[0].tags missing (REQUIRED)
- skills[1].tags missing (REQUIRED)
- skills[2].tags missing (REQUIRED)
- skills[3].tags missing (REQUIRED)
- skills[4].tags missing (REQUIRED)
- skills[5].tags missing (REQUIRED)
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0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.