Paper Chaser MCP vs Scholar
A side-by-side look at the Paper Chaser MCP and Scholar MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Paper Chaser MCP for research work over a hosted endpoint; choose Scholar for research as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Paper Chaser MCP when
- You need dedicated capabilities in the Research domain.
- You prefer a remote HTTP/SSE transport.
- You have the keys it needs:
PAPER_CHASER_TOOL_PROFILE, PAPER_CHASER_HIDE_DISABLED_TOOLS, PAPER_CHASER_ENABLE_SEMANTIC_SCHOLAR, PAPER_CHASER_ENABLE_ARXIV, PAPER_CHASER_ENABLE_CORE. - You want tools like
research, follow_up_research, resolve_reference.
Choose Scholar when
- You need dedicated capabilities in the Research domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
SCOPUS_API_KEY, S2_API_KEY, SCIHUB_MIRRORS, LIBGEN_MIRRORS, SCOPUS_INST_TOKEN, CONTACT_EMAIL. - You want tools like
search_papers_tool, search_papers_s2_tool, get_paper_details_tool.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Research | Research |
| Quality signal | 49/100 · Fair | 48/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | PAPER_CHASER_TOOL_PROFILEPAPER_CHASER_HIDE_DISABLED_TOOLSPAPER_CHASER_ENABLE_SEMANTIC_SCHOLARPAPER_CHASER_ENABLE_ARXIVPAPER_CHASER_ENABLE_CORE | SCOPUS_API_KEYS2_API_KEYSCIHUB_MIRRORSLIBGEN_MIRRORSSCOPUS_INST_TOKENCONTACT_EMAIL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 63 | 27 |
| Full listing | View Paper Chaser MCP | View Scholar |
Tools & capabilities
Paper Chaser MCP tools 63
researchDefault trust-graded entrypoint for discovery, known-item recovery, citation repair, and regulatory routing.follow_up_researchGrounded follow-up over a saved `searchSessionId`; returns explicit abstention/insufficient-evidence states when needed.resolve_referenceResolve citation-like input (citation, DOI, arXiv, URL, title fragment, regulatory reference) into the safest next anchor.inspect_sourceInspect one `sourceId` from a guided result set for provenance, trust state, and direct-read follow-through.get_runtime_statusGuided runtime summary for active profile, transport, smart-provider state, and warnings.search_papers_smartConcept-level discovery with query expansion, multi-provider fusion, reranking, reusable `searchSessionId`, and an evidence-first expert contract (`resultStatus`, `answerability`, `routingSummary`, `evidence`, `leads`, `evidenceGaps`, `structuredSources`, `coverageSummary`, `failureSummary`). Legac…ask_result_setGrounded QA, claim checks, and comparisons over a saved `searchSessionId`.map_research_landscapeCluster a saved result set into themes, gaps, disagreements, and next-search suggestions.expand_research_graphExpand paper anchors or a saved session into a citation/reference/author graph with frontier ranking.search_papersBrokered single-page search (default: Semantic Scholar → arXiv → CORE → SerpApi). Read `brokerMetadata.nextStepHint`; ScholarAPI is also available as an explicit opt-in broker target.search_papers_bulkPaginated bulk search (Semantic Scholar) up to 1,000 papers/call with boolean query syntax.search_papers_semantic_scholarSingle-page Semantic Scholar-only search with full filter support.- +51 more on the listing page
Scholar tools 27
search_papers_toolSearch papers via Scopus (Boolean syntax) or OpenAlex. Sort by `cited_by_count` or `publication_year`.search_papers_s2_toolSearch papers via Semantic Scholar. Note: strictly rate-limited to 1 request/sec.get_paper_details_toolFetch full metadata and abstract by Scopus ID, DOI, or OpenAlex ID (with automatic routing).get_paper_details_s2_toolFetch full metadata from Semantic Scholar, including **AI-generated TLDRs**. Accepts S2 ID or DOI.search_titles_unpaywall_toolSearch Unpaywall's database directly by title. Set `is_oa=True` for strictly OA results.get_related_works_toolFind related/similar papers using OpenAlex's bibliographic coupling.search_books_toolSearch for book metadata via Google Books or Open Library.get_book_details_toolFetch complete book details, descriptions, and ISBNs.search_libgen_toolSearch Library Genesis for books to retrieve their download MD5 hashes.interact_with_book_toolSmart extraction from Libgen. Actions: `toc` (Table of Contents), `search` (keywords), `pages` (range).autocomplete_authors_toolRapidly disambiguate author names and resolve OpenAlex Author IDs.search_authors_toolDetailed bibliometric profiles: H-index, i10-index, ORCID, and research concepts.- +15 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Paper Chaser MCP
{
"mcpServers": {
"paper-chaser-mcp": {
"url": "https://api.core.ac.uk/docs/v3"
}
}
}
Scholar
{
"mcpServers": {
"scholar": {
"command": "uvx",
"args": [
"scholar-academic-mcp"
],
"env": {
"SCOPUS_API_KEY": "YOUR_SCOPUS_API_KEY_HERE",
"S2_API_KEY": "YOUR_S2_API_KEY_HERE",
"SCIHUB_MIRRORS": "YOUR_SCIHUB_MIRRORS_HERE",
"LIBGEN_MIRRORS": "YOUR_LIBGEN_MIRRORS_HERE",
"SCOPUS_INST_TOKEN": "YOUR_SCOPUS_INST_TOKEN_HERE",
"CONTACT_EMAIL": "YOUR_CONTACT_EMAIL_HERE"
}
}
}
}
Frequently asked questions
Paper Chaser MCP is categorized under Research and uses a remote HTTP/SSE transport. Scholar belongs to Research and uses a local stdio subprocess. Pick Paper Chaser MCP for research work and Scholar for research.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Paper Chaser MCP has no declared pricing — check the project's own site. Scholar has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add paper-chaser-mcp and scholar as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Paper Chaser MCP has a quality signal of 49/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. Scholar has 48/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.