MCP Servers

Semantic Scholar MCP server: 14 typed tools over 200M+ academic papers — search, paper/author retrieval, citation-graph traversal, and recommendations. uvx s2-mcp-server

Patent prior art search and startup IP intelligence for AI founders. Clone risk score, defensibility map, patentable features, competitor patent landscape — free analysis in ~2 minutes. Full IP Portfolio Package (6 documents) available for $99. pip install fittin-mcp

MCP server for patent search and prior art discovery powered by Google Patents public dataset on BigQuery. Tools: search patents, get full patent details with CPC codes and citations, fetch legal claims text. Free to use.

Natural-language patent and scientific literature search across 200M+ patents and 216M+ papers from 170+ jurisdictions, with semantic/BM25 search, structured filters, and record retrieval. Hosted Streamable HTTP endpoint and Dockerized stdio bridge; requires a free Patsnap API key.

Zotero MCP server (zotio-mcp) with a capability-tagged tool registry and preview-first, journaled writes (an agent can't silently mutate or delete your library). Reads work keyless against the local Zotero desktop API; writes route to the Web API. Ships an MCPB bundle for one-click Claude Desktop install.

Send research papers from Claude to a Kindle or Kobo, with Zotero as the source of truth. Searches arXiv and OpenAlex, recommends related work via the Semantic Scholar citation graph, queues papers in a Zotero collection, and delivers the PDFs by email or Dropbox. Receipts report file sizes and name anything that could not be sent.

Query 9 classical Chinese texts (pre-Qin to Wei-Jin: 史记/汉书/后汉书/三国志/左传/论语/孟子/吕氏春秋/资治通鉴) by event, person, modern place name, or virtue — every result cites 【book · chapter · paragraph】 with original-text evidence and an honest reviewstatus. Zero-dependency stdlib stdio JSON-RPC.

MCP server for US immigration guidance — live Visa Bulletin, priority date checker and immigration term explanations. Free to use.

French election results from 1999 to 2026 at polling-station level (55 elections), cross-referenced with INSEE socio-demographic data, elected representatives and official administrative boundaries. Electoral maps, vote-reserve analysis, cross-election panels and read-only SQL over DuckDB. Hosted, no auth, no install: https://mcp.andre.vote/mcp, also listed as a hosted connector on Glama.

Query real, quality-scored humans as an agent tool. GetABrain routes a question to paid human workers and returns schema-validated JSON — 16 response types (yes/no, ratings, rankings, A/B tests, sentiment, image/video/audio review, voice/video/photo capture). Fully programmatic signup with a $5 free trial credit, no card required. npx -y @getabrain/mcp-server.

Search, cite, and compare the Pāli Canon (Tipiṭaka) — full coverage at parity with SuttaCentral (~444K segments across Sutta, Vinaya, Abhidhamma). Hybrid trigram+vector search, full-sutta fetch with cross-reference URLs (SuttaCentral + 84000.org), segment-aligned translation comparison, and Pāli word lookup against the P. A. Payutto dictionary. Free, non-commercial — offered as Dhamma Dāna. Hosted at https://tripitaka-mcp.com or self-host via Docker.

Read-only MCP server and live-map dataset for declassified U.S. federal UAP/UFO records, with searchable records, hotspots, timelines and direct source links.

Independent trust scores, claim audits, and comparisons for AI agents — queryable by your agent over MCP. Hosted Cloudflare Worker at hlido.eu/mcp (no install). Returns a 0–100 score, tier verdict, per-claim PASS/FAIL audit, and signed evidence for a reviewed agent. From Hlido.

🎖️ - AI photo and video editing for real-estate listings via the Pedra API: virtual staging, renovation, room emptying, photo enhancement, sky replacement, object removal/blur, and property video generation. npx @pedra-ai/mcp

🎖️ - Audit Japanese construction and renovation estimates for overcharge: fair price ranges by work type, sales tactic red flags, and signed recomputable verdicts (KIRA). Includes an agent intake desk and a directory of independently audited contractors. Remote server, no API key required.

Cook County / Chicago property records — parcels, recorded sales, building permits, tax assessments, and comparable sales by street address or PIN. Hosted remote MCP, pay-per-call via x402 (USDC on Base/Solana).

UK planning application data for AI agents: search planning applications by council, postcode, keyword, status, type, or date range; find applications near a lat/lng point; fetch a specific application; and list supported councils. Requires a PlanWire API key. npx -y planwire-mcp

🎖️ - Turns pinned visual product feedback into an actionable backlog: list comments, read one with its target element's HTML, computed styles and screenshot, and update its status. Powers the Loupe SDK, browser extension, and loupekit/laravel package. Install @loupekit/mcp (binary loupe-mcp).

🎖️ - Product management over a shared product spine: link customer feedback and insights to features, tasks, sprints, releases and objectives; weekly signal memo; roadmap-drift detection; customer 360, funnel, path, retention, NPS and NRR analytics; artifact versioning and identity resolution. 38 tools, hosted remote server with OAuth 2.1 (DCR + PKCE).

Reviews a plan for what's missing — unstated assumptions, omitted technical risks, and execution blind spots (a structured pre-mortem). pip install road-poneglyph-mcp

Polarion ALM integration with 24 read/write tools for documents, work items, traceability links, and comments. Renders documents as Markdown, searches with Lucene or SQL, walks incoming/outgoing links, and creates/updates/reorganizes work items. Every write tool supports dryrun with pre-write field, enum, and link-target validation. Requires Polarion 2506+. uvx mcp-server-polarion.

Search, read, create and update Redmine issues, projects and time entries from any MCP client. 12 tools with MCP safety annotations: full-text search, issue journals with attachments, comments and time tracking. npx -y redmine-mcp-stdio

Manage Transistor.fm podcasts: episodes, analytics, download summaries, episode comparisons, transcripts, and webhooks.

Search the Podcast Index: podcasts, episodes, guest appearances by person, trending shows, and feed health.