com.psychedelicskg/knowledge-graph
Psychedelics Knowledge Graph
Is the Psychedelics Knowledge Graph MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.
Search psychedelic research papers, compounds, outcomes, authors and their relationships.
alive probed 2026-11-14 · unchanged since 2026-11-12 · HTTP 200
- Endpoint
- https://api.psychedelicskg.com/mcp (streamable-http)
- Host
- api.psychedelicskg.com
- Protocol
- 2025-11-25
- Reports itself as
- Psychedelics Knowledge Graph 1.30.0
- Capabilities
- experimental, prompts, resources, tools
- Instructions
- 1 610 characters
- Of a 1M window
- 0.4 % of a 1M context window
- Count
- 3.5k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 3.7k. The o200k_base estimate is 1.9k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/povilaskarvelis/psychedelics_knowledge_graph
- Website
- https://psychedelicskg.com/api/
- Registry
- active, updated 2026-11-12 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.88×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| search_papers | 1 255 | 668 | 35 % |
| find_relationships | 1 191 | 634 | 34 % |
| search_concepts | 261 | 139 | 7 % |
| get_author_papers | 199 | 106 | 6 % |
| get_paper | 199 | 106 | 6 % |
Compare this server with others.
More servers
Servers that mention knowledge.
- inference.sh ac.inference.sh/mcp · needs auth
- Knowledge Base ai.b77/knowledge-base · needs auth
- brainattic ai.brainattic/knowledge-base · needs auth
- Buron ai.buron/buron · paid (402)
- ColdState — Deterministic Knowledge Infrastructure ai.coldstate/knowledge · alive
- DeepDNA ai.deepdna/knowledge · alive
- ai.emberverse/emberverse · alive
- xmp4 — Semantic code knowledge for your stack ai.example4/xmp4 · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.