Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"apaper-mcp","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
# apaper-mcp An MCP (Model Context Protocol) server that gives AI assistants direct access to academic paper databases. It exposes a unified set of tools for searching and downloading papers across arXiv, IACR ePrint, DBLP, Google Scholar, and CNKI (中国知网), so an MCP-compatible client (Claude Code, Claude Desktop, or any other) can run literature searches, pull BibTeX entries, and fetch PDFs without leaving the chat. ## Tools | Tool | Source | Description | | --- | --- | --- | | `search_arxiv_papers` | arXiv | Search with category, date-range, and sort options | | `download_arxiv_paper` | arXiv | Download a PDF | | `search_iacr_papers` | IACR ePrint | Search the ePrint archive | | `download_iacr_paper` | IACR ePrint | Download a PDF | | `search_dblp_papers` | DBLP | Search, optionally with BibTeX | | `search_google_scholar_papers` | Google Scholar | Search | | `search_cnki_papers` | CNKI (中国知网) | Search | | `download_cnki_paper` | CNKI (中国知网) | Download a PDF | arXiv tools scrape the public `arxiv.org/search/` HTML page, which works on networks where the `export.arxiv.org` Atom API is blocked or rate-limited. If you need to route through a mirror, set `ARXIV_SEARCH_URL`, `ARXIV_ADVANCED_URL`, and/or `ARXIV_PDF_BASE`. The arXiv tools throttle themselves and retry HTTP 429 / 5xx with exponential backoff, honouring `Retry-After`; on a persistent block the error names the throttled IP and wait time. Tune with `ARXIV_MIN_INTERVAL_MS` (`3000`), `ARXIV_MAX_RETRIES` (`3`), `ARXIV_BACKOFF_BASE_MS` (`3000`), `ARXIV_BACKOFF_MAX_MS` (`60000`), `ARXIV_BACKOFF_JITTER_MS` (`500`), and `ARXIV_IP_ECHO_URL` (`""` to disable the IP lookup). CNKI tools require institutional access. On IP-based networks the session cookie is obtained automatically on first use — no manual login needed. IACR ePrint sits behind Cloudflare, which intermittently serves a JS bot challenge, most often on PDF downloads. The download tool uses Scrapling's stealth browser and built-in Cloudflare solver, a…
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