MCP servers, all 10,709 of them.

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irrationalDev tools
Adversarial behavioural-bias engine — audits your decisions for cognitive biases via your own AI.
Serves today
github.com/urbanmorph/irrational
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irs-taxpayerDev tools
39 tax tools for US taxpayers: federal/state tax, credits, deductions, retirement. All local.
github.com/dma9527/irs-taxpayer-mcp
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is-real-bizDev tools
Verify business legitimacy by domain or name in <2s. Trust score, verdict, evidence. x402-payable.
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github.com/smart-link-t/is-real-biz
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isbnDev tools
ISBN validation & conversion MCP.
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github.com/pipeworx-io/mcp-isbn
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isc-sansDev tools
SANS Internet Storm Center (ISC) MCP.
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github.com/pipeworx-io/mcp-isc-sans
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isinDev tools
Securities-identifier validation MCP (ISIN / CUSIP).
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github.com/pipeworx-io/mcp-isin
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islamic-knowledgeDev tools
Verified Quran verses, duas, 99 Names of Allah, and prophets. Multi-madhab reviewed.
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github.com/yserrag/sakina-v3
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isnow890-data4library-mcpDev tools
책 싫어하는 제가 책에 대해 아는척하고 싶어서 만들었습니다.. 내 주변 도서관 실시간 대출 확인 읽고 싶은 책을 검색하면 주변 도서관 대출 가능 여부를 즉시 확인 굳이 도서관…
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github.com/isnow890/data4library-mcp
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isoDev tools
ISO Standards MCP — hosted.
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github.com/pipeworx-io/mcp-iso
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iso-42005-impact-mcpDev tools
ISO/IEC 42005:2025 AI Impact Assessment MCP — first international standard for AI impact
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github.com/csoai-org/iso-42005-impact-mcp
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iso-codesDev tools
ISO country/language/currency/script code lookups (Debian iso-codes JSON)
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github.com/pipeworx-io/mcp-iso-codes
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iso20022oracleDev tools
ISO20022Oracle - 12 ISO 20022 tools: pacs/pain/camt parsing, MX validation, MT migration.
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github.com/tooloracle/iso20022oracle
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isochroneDev tools
Berlin pedestrian isochrones: streets reachable on foot in N minutes (walk/stroller/wheelchair).
github.com/capan/isochrone
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israel-tendersDev tools
Israel Government Procurement MCP — public tenders & exemption contracts (keyless).
Serves today
github.com/pipeworx-io/mcp-israel-tenders
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iss-numberDev tools
iss-number MCP — wraps StupidAPIs (requires X-API-Key)
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github.com/pipeworx-io/mcp-iss-number
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istat-itDev tools
ISTAT (Istituto Nazionale di Statistica) MCP — Italy's national statistics
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github.com/pipeworx-io/mcp-istat-it
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iterabledataDev tools
Streaming read, convert, and inspect 100+ formats. Install iterabledata[mcp] and run iterable-mcp.
github.com/datenoio/iterabledata
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itisDev tools
ITIS (Integrated Taxonomic Information System) MCP.
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github.com/pipeworx-io/mcp-itis
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itjuzi-mcpDev tools
Hosted MCP for IT桔子 primary market company, funding, investor and sector data.
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github.com/lgyers/itjuzi-mcp
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ivdDev tools
33 tools that make AI write, implement, and verify intent against explicit, testable constraints.
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github.com/leocelis/ivd
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iwantmymtg-mcpDev tools
Query Magic: The Gathering cards, sets, and prices and manage your I Want My MTG collection.
github.com/matthewdtowles/iwantmymtg-mcp
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japan-data-mcpDev tools
日本の公的データ（統計・法人・不動産）にAIからアクセスするMCPサーバー。e-Stat統計API・法人番号Web-API・不動産情報ライブラリAPIの3API統合。全国約1,700市区町村対応。
github.com/izyuusya/japan-data-mcp
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japan-lawDev tools
Japan Law MCP — Japanese national laws & ordinances via the e-Gov Law API.
Serves today
github.com/pipeworx-io/mcp-japan-law
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japan-real-estate-intel-mcpDev tools
Japan real estate MCP: land price, risk, foot traffic, renovation. 10 prefectures.
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github.com/sugukurukabe/japan-real-estate-intel-mcp
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japan-real-estate-mcpDev tools
Japan real estate transaction prices and official land values (MLIT data) by area, year, and type.
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github.com/easakura/japan-real-estate-mcp
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japan-seasonsDev tools
Live Japan seasonal travel MCP: sakura, autumn leaves, flowers, festivals, fruit farms, weather.
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github.com/haomingkoo/japan-seasons-mcp
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jargon-translatorDev tools
jargon-translator MCP — wraps StupidAPIs (requires X-API-Key)
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github.com/pipeworx-io/mcp-jargon-translator
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java-all-call-graph-serverDev tools
MCP server for Java call graph generation, static analysis, method chains & config management
github.com/adrninistrator/java-all-call-graph-server
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javabin-archieveDev tools
Forensic archive of javaBin & JavaZone origins (1998-2007) as a signed KCP knowledge web.
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github.com/totto/javabin-archieve
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javalensDev tools
63 semantic Java analysis tools via Eclipse JDT: navigation, refactoring, code intelligence.
github.com/pzalutski-pixel/javalens-mcp
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