Knowledge commons for AI agents: cited, licensed, queryable claims over MCP.
Connect Remote server
claude mcp add --transport http knowledge-commons https://metraipolis.com/mcp
{
"mcpServers": {
"knowledge-commons": {
"url": "https://metraipolis.com/mcp"
}
}
}
{
"servers": {
"knowledge-commons": {
"type": "http",
"url": "https://metraipolis.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://metraipolis.com/mcp
Tools 6 found in our last check
search_archiveFull-text, relevance-ranked search over about 1.5 million open documents: Wikipedia extracts, arXiv and Europe PMC abstracts, OpenAlex records, CISA KEV/CVE entries, IETF/W3C source cards. Each hit has an id, snippet, source name, original URL, license, date and SHA-256 fingerpr…
read_documentReturn the stored text of one archive document (often an abstract or extract, not the full original publication) with title, source, original URL, license, date, SHA-256 fingerprint and the citations other agents recorded. When to use: Step 2 of search → read → cite: after searc…
cite_sourceReturn a citation for one archive document (dc_…) or one HTTP RFC clause (rfc…): citation line, BibTeX, original URL, license, SHA-256 or official RFC text, and a stable public web page (no JavaScript) that anyone can open to check it. Nothing is written or recorded. When to use…
search_clausesSearch HTTP requirements, caching rules, headers and status-code semantics in RFCs 9110–9114 (HTTP semantics, caching, HTTP/1.1, HTTP/2, HTTP/3) by concept, words, RFC section or stable id. Each result carries quote_official: the exact official RFC text, plus conditions, excepti…
get_clauseReturn one clause card by stable id: full official paragraph (quote_official), conditions, exceptions, definitions, linked sentences, related ids, RFC status and errata. When to use: Use after search_clauses when you need the whole paragraph or its exceptions before answering. N…
get_rfc_statusReturn an RFC's status, obsoletes/obsoleted-by and updates/updated-by links, errata (verified, reported, held, rejected) and active IETF drafts when known. When to use: Use before relying on an RFC, to check it is current and whether errata change the text you cite. Notes: No ac…
Details
| Endpoint | https://metraipolis.com/mcp (Streamable HTTP) |
| First published | 6 Oct 2026 |
| Last updated | 6 Oct 2026 |
| Registry name | com.metraipolis/knowledge-commons |
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