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MCP servers published as npm packages: JAJ Dataverse Dev MCP to Kaiord
8,832 servers in the MCP Registry are distributed as a Node.js package published to the npm registry. They run on the user's own computer and need Node.js; clients usually start it with npx.
| Server | Runs |
|---|---|
| JAJ Dataverse Dev MCPXrm/Power Platform/Dataverse MCP for devs, Azure CLI auth, Web API and multi-environment support. | Local · stdio |
| JamgateA neutral memory quality-gate MCP server: save_memory, recall_memory, forget_memory over stdio. | Local · stdio |
| JampAgent-run site monitoring: install JAMP, read errors, uptime, vitals and traffic, resolve fixes. | Remote & Local · HTTP, stdio |
| JaneeSecure secrets proxy for AI agents — manages API keys so agents never see raw credentials. | Local · stdio |
| JanuscopeLocal MCP proxy for tool restrictions, response redaction, audit logs, and database schema context. | Local · stdio |
| Japan Company Info MCP BridgeOffline MCP for verified Japanese corporate data: EDINET XBRL financials, NTA IDs, gBizINFO. | Local · stdio |
| Japan Data MCP30 tools for Japanese data: address, furigana, transit, Diet, holidays, weather, corporate registry. | Local · stdio |
| Japan Real Estate IntelJapan real estate MCP: land price, risk, foot traffic, renovation. 10 prefectures. | Remote & Local · HTTP, stdio |
| Japan SeasonsLive Japan seasonal travel MCP: sakura, autumn leaves, flowers, festivals, fruit farms, weather. | Remote & Local · HTTP, stdio |
| Japan UxJapanese UI + UX correctness for AI coding agents — typography, forms, keigo, JLReq checks. | Local · stdio |
| Jarroba Tools128 deterministic tools for your AI: logs, tests, SQL, diagrams, SPARQL. Local, no network. | Local · stdio |
| Jarroba Tools · CalculationMaths a model gets wrong: units with dimensional checking, equations, sheets. 5 tools, local. | Local · stdio |
| Jarroba Tools · LogsLets your AI read a CI log far too big for its context. 11 tools, takes a file path. | Local · stdio |
| JarvisClaw — AI Gateway & API Marketplace320 AI models + 2,720 pay-per-call APIs. x402 USDC on Base or Solana, no API key. | Remote & Local · HTTP, stdio |
| JavaLens63 semantic Java analysis tools via Eclipse JDT: navigation, refactoring, code intelligence. | Local · stdio |
| javaperfJava profiling MCP via jcmd/jfr/jps. Diagnose performance, analyze threads, inspect JFR recordings. | Local · stdio |
| Jd Intel MCPYour AI fetches and reads full job descriptions across seven ATS platforms, no copy-paste. | Local · stdio |
| Jdk25 Upgrade Blocker LintFinds the Java lines the new LTS removed — 18 rules; 23 findings in one 64-line fixture. | Local · stdio |
| Jedanderson Corpus MCPMCP access to the jedanderson.org corpus — environmental superintelligence and information physics. | Local · stdio |
| Jellyfin MCPMCP server for Jellyfin: server info, users, libraries. Works with any self-hosted instance. | Local · stdio |
| Jest Snapshot Pii Audit15 rules that find the real customer data your.snap files committed. | Local · stdio |
| JetAPISend WhatsApp, Telegram, SMS and MAX messages, files and bulk mailings via JetAPI. | Local · stdio |
| Jetbrains MCPKeyless MCP server for JetBrains Marketplace: plugin search, details, ratings, downloads. | Local · stdio |
| jettyd.comConnect AI agents to IoT devices — read sensors, send commands, manage ESP32 fleets. | Local · stdio |
| Jev agent toolsEvidence-oriented code questions, diff review and test selection via a Jev endpoint. | Local · stdio |
| Jev Decision MCPTyped Jev decisions in one batched tool: choice, score, and yes/no probabilities. | Local · stdio |
| Jev UseTyped yes/no, pick-one and score judgments from Jev in one batched call; typed escalation back. | Local · stdio |
| jevmemAutomatic project memory for Claude Code. Also works with Cursor and Codex. | Local · stdio |
| JevSimRun verified iOS and Android UI workflows in one agent tool call with Jev. | Local · stdio |
| Jikan MCPSearch anime and manga from MyAnimeList through the Jikan API. No key required. | Local · stdio |
| jikida.ioSecurity tools for your AI: scan, pentest, check headers, guard code and scan repos for secrets. | Local · stdio |
| Jira Alerts (JSM Operations)MCP server for Jira Service Management Operations — alerts, on-call schedules and responders. | Local · stdio |
| Jira CloudMCP server for Jira Cloud — manage issues, sprints, boards, filters, and custom fields. | Local · stdio |
| Jira MCPJira & Confluence MCP: 24 tools for issues, sprints, comments, transitions & wiki. Run via npx. | Local · stdio |
| Jira MCP ServerMCP server for Jira — search, create, update, transition issues, manage projects, boards, and spr... | Local · stdio |
| Jisho MCPUse this MCP server to Jisho, the Japanese English dictionary. Words, kanji, readings, and... | Local · stdio |
| Jitbit HelpdeskMCP server for Jitbit Helpdesk: search, list, read, and reply to support tickets from AI assistants. | Remote & Local · HTTP, stdio |
| Jmespath MCPRun JMESPath queries against JSON. Pure JS, no native binary needed. | Local · stdio |
| Job SearchSearch Korean job postings from JobKorea and Saramin by company name. | Local · stdio |
| Job Search MCPSearch remote job listings from the Remotive public feed. No key required. | Local · stdio |
| Job Search MCPClaude searches real job boards, scores each job 0-100 for fit, and shows a ranked board. | Local · stdio |
| Jobber MCPRead the Jobber Client Hub your service providers share: appointments, invoices and quotes. | Local · stdio |
| Jobber MCP ServerMCP server for Jobber (home services SaaS) — exposes tools for clients, jobs, invoices, and quote... | Local · stdio |
| JobDataLakeSearch 1M+ enriched job listings. Filter by skills, salary, location, and more. Free. | Local · stdio |
| JobGPT - Job Search Automation & Auto ApplyJob search automation, auto apply, resume builder, application tracking, and recruiter outreach. | Local · stdio |
| Jobo Job SearchSearch a live index of millions of open jobs from employer career sites and 100+ ATS platforms. | Remote & Local · HTTP |
| JobScout MCPMulti-source job discovery, deduplication and AI/Web3 classification for AI agents. | Local · stdio |
| JobseekSearch jobs and companies on Job Seek (jseek.co) | Local · stdio |
| JobYap Job SearchSearch job postings aggregated from companies' careers sites, plus each job's discussion thread. | Remote & Local · HTTP, stdio |
| Join.CloudCollaboration rooms for AI agents. Real-time messaging + standard git. | Local · HTTP |
| Jokes MCPJokes in one place: dad jokes, JokeAPI jokes by category, and category listing. No key required. | Local · stdio |
| Joltsms SmsProvision real-SIM US phone numbers, receive SMS, and extract OTP codes for AI agents. | Local · stdio |
| jonybur-oc MCP-SERVERStories.yaml — an open specification for software requirements, enforced by CI. | Local · stdio |
| Joplin MCP ServerSearch, read, create, edit and sync Joplin notes and notebooks via a headless Joplin sidecar. | Local · stdio |
| JovieCreate a music artist's Jovie profile from a Spotify URL and read public artist data. | Local · stdio |
| Joy Trust NetworkTrust infrastructure for AI agents. Portable reputation (JTS 0-5), agent discovery, vouching. | Remote & Local · HTTP, stdio |
| JP BidsRead-only MCP server for searching Japan government procurement bid information from the KKJ portal. | Remote & Local · HTTP, stdio |
| Jpl Fireball MCPFireball impact data from NASA JPL. No key required. | Local · stdio |
| Jpl Sbdb MCPAsteroid and comet data from the NASA JPL Small Body Database. No key required. | Local · stdio |
| JProfilerJava profiling with AI agent integration. Profile CPU, memory, JDBC, HTTP and more. | Local · stdio |
| Jsc Typescript Ast MCPAST for TypeScript, supports creating JSON representations of React components. | Local · stdio |
| Jsdelivr MCPPackage versions and CDN statistics from jsDelivr. No key required. | Local · stdio |
| JshookmcpMCP server for JavaScript analysis, security auditing, browser automation and hooks. | Local · stdio |
| JsonJSON/YAML/CSV validate, diff, transform for AI agents. | Local · stdio |
| JsonMCP server for JSON processing — format, validate, diff, convert, minify, query, analyze. | Local · stdio |
| JSON ContractsJSON contract registry and validator for structured LLM and agent outputs. | Local · stdio |
| Json Repair MCPRepairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe. | Local · stdio |
| Json Schema Store MCPBrowse the JSON Schema Store catalog. No key required. | Local · stdio |
| Json Tools MCPValidate, format, and inspect JSON locally. No network and no key. | Local · stdio |
| Json5 MCPParse JSON5 (comments, trailing commas, unquoted keys) and emit strict JSON. | Local · stdio |
| JsonFabricaGenerate realistic, relational synthetic JSON test data from templates, via the JsonFabrica API. | Local · stdio |
| JSONPadBuild and run a JSONPad backend: lists, items, indexes, write rules, schema sync, history, flows. | Remote & Local · HTTP, stdio |
| JSONPad documentationJSONPad docs, API, SDK and CLI references, and offline checkers for write rules and flows. | Remote & Local · HTTP, stdio |
| jsonshimRecovers malformed LLM JSON. MCP build: 218/300 on MALFORMED-300 (library build 282/300). | Local · stdio |
| Jsx NotationJSXN encoder/decoder — compact notation for React/Next.js files, optimized for LLMs. | Local · stdio |
| Judges Panel45 judges that evaluate AI-generated code for security, cost, and quality with built-in AST. | Local · stdio |
| juicedresume.comScore, tailor, and export resumes from any MCP client — 60+ ATS checks and JD tailoring. | Local · stdio |
| Jules DispatchBatch-dispatch coding tasks to Google Jules: 50 parallel sessions, plan approval, PR collection. | Local · stdio |
| Junglescout MCPJungle Scout MCP server: keyword volumes, product database, sales estimates, share of voice. | Local · stdio |
| Junto MCPThe payment protocol for people and agents. One MCP server, any payment rail. | Local · stdio |
| Juris UCC Article 9 lien searchUCC Article 9 debtor lien search + honest list_coverage; fixture-default; live HTML ToS-GRAY opt-in. | Local · stdio |
| JuscribeRead and work your Juscribe board: tickets, subtasks, blockers, projects and iterations. | Local · stdio |
| Just SignalKeyless MCP for Just Signal: live quotes, report publishing, scorecard, and Chophouse panel grades. | Remote & Local · HTTP, stdio |
| justdrop.aiLive, end-to-end encrypted, ephemeral file transfer between your AI agent and any device. | Local · stdio |
| JustHandled Agent Utility GatewayThirty-two guarded agent utilities and maintained-data lookups over USDC x402. | Local · stdio |
| Justtranscribe MCPTranscribe public videos & audio (YouTube, TikTok, IG) into accurate, timestamped text via API. | Remote & Local · HTTP, stdio |
| JVM Source LensGradle-accurate JVM classpath; fetch Java source, signatures, and class structure for agents. | Local · stdio |
| Jwt Forge MCPDecode and inspect JWT tokens — header, payload, expiry check. | Local · stdio |
| Jwt Tools MCPDecode and verify JSON Web Tokens locally. No network and no key. | Local · stdio |
| K-Data — Korean Sell-Side Research & Market DataKorean equity research, analyst revisions, kimchi premium and news via x402. | Remote & Local · HTTP, stdio |
| K8s Removed Api Lint15 checks for the apiVersions kubectl no longer serves, on the manifest open in your editor. | Local · stdio |
| K8scortex MCPKubernetes MCP server: 75 tools for GKE, AKS, EKS, RBAC, audit logging, GitOps, multi-cluster. | Local · stdio |
| Kadam Ad NetworkKadam advertising platform — manage ads, campaigns, creatives, audiences and stats. | Local · stdio |
| Kadenzo MCPSchedule, manage, generate & analyze social posts across 11 networks from any AI agent. | Local · stdio |
| KadlintKorean ad-compliance linter for cosmetics and health-food marketing copy. | Local · stdio |
| KageVerified memory for coding agents: claims cited against code, stale withheld, savings receipts. | Local · stdio |
| KaiSemantic code intelligence — call graphs, dependencies, impact analysis, and test coverage. | Local · stdio |
| KaiBoard MCPLet AI agents draw on your local-first KaiBoard whiteboards (relay or local folder). | Local · stdio |
| KaidnExplain fraud verdicts with evidence, surface account rings, and see who has burned other operators. | Local · stdio |
| KaiordConvert, validate, and inspect workout files (FIT, TCX, ZWO, Garmin Connect) for AI agents. | Local · stdio |