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4.6 M
Text passages
20 000+
Books
7
Languages
Free
No key required
What is Alexandria?
Alexandria is a semantic search engine over 4.6 million passages from the great works of Western philosophy — public domain texts gathered from the Internet Archive, spanning antiquity to the early twentieth century.
It is offered as an MCP server: connect it to any compatible AI assistant and let the model retrieve primary sources directly while reasoning. Queries work in any language; the texts are in their original tongues.
Connect to Claude
Add Alexandria to Claude from the command line:
claude mcp add --transport http alexandria https://alexandria.aidatanorge.no/mcp
Or add manually in Settings → MCP Servers with transport HTTP and the URL above.
The Canon
Search across the primary works of, among others:
AristotlePlatoSocrates
KantHegelNietzsche
SchopenhauerDescartesSpinoza
LeibnizLockeHume
RousseauVoltaireMill
AquinasAugustinePlotinus
Marcus AureliusEpictetusSeneca
CiceroWittgensteinRussell
JamesPeirceBergson
Example Queries
- Nietzsche eternal recurrence and the will to power
- Platonic theory of forms and participation in the Good
- Kantian categorical imperative and the kingdom of ends
- Aristotle on eudaimonia and the contemplative life
- Stoic indifference to external goods — the sage
- Hegel dialectic of master and slave
- Free will, necessity, and compatibilism
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