ckg-mcp is the context layer between agents and the domains they operate in. 97 pre-compiled knowledge graphs — mathematics, GPU inference, healthcare, regulatory, legal, finance, robotics — served over MCP. Agents traverse declared dependencies instead of re-inferring domain structure on every query. No model, no embeddings, no API key for the 68 free domains.
"You go from prompting the domain into existence to asking questions inside it."
97 domains clustered by category · hover to explore · each dot = a domain graph
Drifts with every model update. Cannot traverse. The model re-infers the domain on every query.
Accuracy degrades at each hop. 0.123 macro F1 on multi-hop domain queries. Expensive per query.
Stale by delivery. Retrains when knowledge shifts. Does not give you a traversable graph.
All three share the same failure: the agent re-infers domain structure on every query instead of reading structure that was declared once.
query_ckg("Taylor Series", "calculus", 3) → Function → Limit → Continuity → Derivative → Higher-Order Derivatives → Convergence → Power Series → Taylor Series 8-hop chain · 269 tokens · declared edges only RAG: "A Taylor series is a polynomial approximation..." (2,982 tokens · probabilistic) get_prerequisites("Business Associate Agreement", "hipaa-compliance") → Covered Entity → PHI Definition → Minimum Necessary Standard → Access Controls → Breach Notification Rule → BAA HIPAA chain in 5 traversal steps. Ask the graph, get the chain. query_ckg("FlashAttention-3", "nvidia-gpu-inference", 3) → SRAM Tiling · On-Chip Memory Budget · Transformer Attention · Softmax Stability → FlashAttention-3 → Multi-Head Attention → KV Cache GPU inference chain. Correct every time. Zero inference at query time.
# Claude Desktop { "mcpServers": { "ckg": { "command": "uvx", "args": ["ckg-mcp"] } }} # Claude Code claude mcp add ckg -- uvx ckg-mcp # Try immediately list_domains() → see all 68 free domains query_ckg("TLS", "hipaa-compliance", 2) get_prerequisites("Nemotron-4 340B", "nemotron")
| Tool | Description |
|---|---|
| list_domains() | Every available domain — start here. Grouped by category. |
| query_ckg(concept, domain, depth) | Prerequisites + dependents, up to N hops. The core traversal tool. |
| get_prerequisites(concept, domain) | Full upstream chain in dependency order — every prerequisite in sequence. |
| search_concepts(query, domain) | Find concepts by keyword before traversing. |
| list_agent_blueprints() | Pre-built agent configs: domains, workflow, system prompt, LangGraph hint. |
| get_agent_blueprint(use_case) | Full spec for a use case — paste into any agent framework. |
calculus · pre-calc · algebra-1 · linear-algebra · geometry-course · statistics-course · functions · fft-benchmarking
claude-anthropic · cursor · deepseek · gemini-api · grok-xai · kimi-moonshot · openai-platform · qwen · vercel-ai-sdk · langchain-core · dbt-core · apache-iceberg
circuits · digital-electronics · computer-science · quantum-computing · signal-processing · intro-to-graph · ros2-architecture · robot-motion-planning
glp1-obesity · glp1-muscle-loss · dementia · biology · bioinformatics · genetics · ecology · chemistry
fda-drug-approval-chain · fda-adverse-event-chain · federal-procurement-chain · gao-oversight-chain
economics-course · personal-finance · ethics-course · systems-thinking · digital-citizenship · blockchain · unicorns · machine-learning-textbook · data-science-course
art-of-war · laudato-si · learning-linux · us-geography · asl-book · prompt-class · tracking-ai-course · microsims · infographics
conversational-ai · machine-learning-textbook · automating-instructional-design · it-management-graph · theory-of-knowledge
| Category | Domains |
|---|---|
| Healthcare & clinical | HIPAA · CPT coding · ICD-10 · payer formulary · drug interactions · clinical decision chain · medical billing |
| Enterprise data stack | Databricks Unity · Snowflake Horizon · PostgreSQL · AWS Data Catalog · Azure Purview · GCP Dataplex · OpenLineage |
| AI infrastructure | NVIDIA GPU inference · AgentForce · context-as-a-service · agent reliability · AI governance · token cost crisis |
| Legal & compliance | Legal citation chain · contract law elements · AML/KYC chain · investment risk chain |
7,928 queries · 5-hop F1: 0.772 (CKG) vs 0.170 (RAG) · dataset public on HuggingFace · run it yourself
Install in one command and connect to Claude Desktop, Claude Code, Cursor, or any MCP client. Upgrade to Pro for 97 domains including healthcare, legal, and enterprise infrastructure.
Free tier · 68 domains · MIT licensed · no API key · Python ≥ 3.10 · single dependency