Developer Tools – MCP servers
520 MCP servers in the category Developer Tools. Open-source Model Context Protocol (MCP) servers that let AI assistants and agents use external tools and data. Entries come from the community list awesome-mcp-servers; we have not tested each server, so check the repository before you install one.
jaggernaut007/Nexus-MCP
Local hybrid code search (vector, BM25 and code graph) with structural code graph analysis and persistent semantic memory.
jaimenbell/mcp-factory
Manifest-driven MCP server scaffolder: generate MCP servers from YAML manifests, with batch registration and a live routing hub.
Jambozx/onlinecybertools-mcp-server
Developer and security utilities via the onlinecybertools.com API: encoding, hashing, JWT decoding, regex testing, formatters, network diagnostics…
James-Chahwan/repo-graph
Structural codebase graph: scans entities, relationships and feature flows across languages so LLMs navigate by structure instead of grepping.
JamesANZ/system-prompts-mcp-server
Exposes a catalog of coding assistant system prompts as tools, with model-aware suggestions and persona activation to emulate agents like Cursor or…
janaraj/tnl
TNL (Typed Natural Language): per-feature English contracts that coding agents can look up, propose edits to and verify implementations against.
janreges/ai-distiller-mcp
Extracts essential code structure from large codebases into an AI-digestible format so agents write code that correctly uses existing APIs.
Jarroslav/agentic-os
Read-only access to the agentic-os governance, SDLC and QE methodology, with install planning and verification.
jarvisassistantux/loopsense
Feedback loop for coding agents: CI monitoring, process watching, file change detection and HTTP polling.
jasonjmcghee/claude-debugs-for-you
VS Code extension and MCP server for language-agnostic automatic debugging via breakpoints and expression evaluation.
jawdat6/fixgraph-mcp
Search and contribute to a community-verified knowledge base of engineering issues and fixes, with trust scores and fix verification.
jcooley8/pincushion-plugin
Visual feedback for coding agents: stakeholders drop pins on a live app, and the agent reads each pin's selector, screenshot, DOM snippet and thread…
JeanFrancoisGagne/crapkit
Read-only per-function CRAP scores (complexity and coverage) that point to the worst function to fix next, with uncovered lines and near-duplicates.
jetbrains/mcpProxy
Work with JetBrains IDEs such as IntelliJ, PyCharm, WebStorm and Android Studio.
jiezeng2004-design/PatchWarden
Local-first safety and verification layer for coding agents: workspace confinement, command allowlists, scope-violation detection and auditable task…
Jktfe/serveMyAPI
Securely store and access API keys across projects using the macOS Keychain.
jmshinhwa/readystack-mcp
Regulation and deadline linters for EU CRA, DORA, NIS2, the EU AI Act, PCI DSS, WCAG, e-invoicing and more, reporting file, line and fix for each…
joaoh82/rustunnel
Create and manage public HTTP, TCP and UDP tunnels to local services with custom subdomains, regions and load-balanced pools, managed cloud or…
JoeGlenn1213/ActionD
Local CI/CD for agents: runs jobs on LGH git events in isolated checkouts, with failure diagnosis, approval gates, auto-rollback and a web console.
jonradoff/lightcms
CMS managed via natural language: publish content and manage templates, assets, themes, redirects and multi-site forks, with versioning and semantic…
jordandalton/restcsv-mcp-server
Access CSV files via RestCSV.
joshuarileydev/simulator-mcp-server
Control iOS Simulators.
josifb/whichlib
Dependency picker for coding agents: recommends and compares GitHub repos for a need, scored 0-100 on momentum, maintenance, npm/PyPI downloads and…
Jott2121/agent-gate
Lets agents gate their own work: a fail-closed ship checklist, independent refute-first review and a tamper-evident, hash-chained receipts ledger.
Jpisnice/shadcn-ui-mcp-server
Access shadcn/ui v4 components, blocks, demos and metadata.
jsdelivr/globalping-mcp-server
Run ping, traceroute, mtr, HTTP and DNS measurements from locations around the world via Globalping.
JSungMin/vs-token-safer
Routes code search through language-server indexes (clangd, Roslyn, tsserver, pyright) instead of grep, plus symbol-level edits and git/p4 output…
jubstaaa/hono-telescope
Read-only debugging for Hono apps: recent exceptions with their requests, logs and queries, requests filtered by status or duration, and the slowest…
julianbei/arno
IDE for agents: read code by symbol, edit with compiler diagnostics, validate with the project's own build and tests, and revert to checkpoints.
Jungle-Grid/mcp-server
Estimate, submit, monitor and fetch logs for GPU inference, training, fine-tuning and batch workloads on Jungle Grid.
kadykov/mcp-openapi-schema-explorer
Token-efficient access to OpenAPI/Swagger specs via MCP Resources.
KallistoX/mcp-unifi-applications
Query UniFi API docs (Network, Protect, Site Manager and more): endpoint search, field-level schemas and code examples. Docs only, no controller…
kao273183/mk-qa-master
End-to-end QA loop: analyzes web pages or mobile screens, generates and runs pytest or Maestro tests with auto-retry, and writes an optimization plan.
Kapeli/dash-mcp-server
Search documentation sets in Dash, the macOS API documentation browser.
Karzone/TestAtlas
Maps a .NET Reqnroll/SpecFlow test-automation solution into a queryable SQLite file to search step definitions, check change impact and avoid…
kenneives/design-token-bridge-mcp
Translates design tokens from Tailwind, CSS, Figma or W3C DTCG into Material 3, SwiftUI, Tailwind config and CSS variables, with WCAG contrast…
kensaurus/mushi-mushi
Bug-report triage and fix dispatch: plain-English diagnoses of user-reported bugs with evidence, blast radius and a fix prompt, then automated…
kerbelp/metatron
Self-hosted server that captures design patterns, conventions and decisions from git history and developer feedback and serves them to coding agents.
kestiny18/spring-nacos-mcp
Read-only Nacos config and service discovery for Spring Cloud repos: finds environments from application/bootstrap files and diffs config keys…
kevinswint/xcode-studio-mcp
iOS development tools: build, run, screenshot and interact with the iOS Simulator.
kimwwk/repocrunch
Analyze GitHub repositories' tech stack, dependencies, architecture, health metrics and security indicators with deterministic JSON output.
kindly-software/kdb
Time-travel debugger with bidirectional execution replay, hash-chain audit logging and SIMD-accelerated stack unwinding.
kirich1409/maven-mcp
MCP server / agent plugin for Maven and Gradle dependency intelligence: latest versions, outdated deps, CVEs, changelogs, licenses and project audits.
knewstimek/agent-tool
Encoding-aware file read/edit for coding agents with indentation conversion and .editorconfig support, plus SSH, SFTP, process management and system…
KryptosAI/mcp-observatory
Regression testing for MCP servers: discovers configured servers, checks capabilities, invokes tools, detects schema drift and recommends new servers.
kucherenko/jscpd
Duplicate code detection with jscpd: check snippets and files for copy/paste duplication against a scanned project before committing.
KyaniteLabs/checkyourself
Local launch-readiness audit for AI-built apps: read-only checks, an evidence-based 0-100 score and guided fixes.
kyisaiah47/compound-mcp
Read-only lookups for facts newer than a model's training cutoff: AI model costs, dependency maintenance, SaaS stack costs, shadcn registry items…
kyle641320/true-memory-fragments
Checks source-context freshness against a Git working tree and retrieves source-linked code relationships to surface stale knowledge and cross-file…
LadislavSopko/mcp-ai-server-visual-studio
Roslyn-based Visual Studio integration: semantic code navigation, symbol search, inheritance trees, call graphs, safe rename and build/test execution.
lamemind/mcp-server-multiverse
Middleware that runs multiple isolated instances of the same MCP servers side by side with unique namespaces and configurations.
langfuse/mcp-server-langfuse
Access and manage LLM application prompts created with Langfuse Prompt Management.
laszlopere/mcp-abacus
Offline calculator that evaluates expressions in fixed-point, IEEE-754 double or exact rational arithmetic, labelling each answer exact or inexact.
linuxsuren/atest-mcp-server
Manage API test suites and test cases with atest.
linw1995/nvim-mcp
Interact with Neovim.
lisamaraventano-spine/mcp-server
Underground Cultural District: developer utilities (UUID, JSON, Base64, hashing, JWT, regex, cron), creative tools and a marketplace of digital goods.
logisky/logisheets-mcp
Local Excel-compatible spreadsheet engine based on LogiSheets: deterministic formulas, named blocks, column rules, scenario scans, goal-seek and…
lorenzo-cambiaghi/LynxMCP
Local semantic code search with AST-aware chunking, hybrid BM25 and dense retrieval, and a code knowledge graph over codebases, docs sites and PDFs.
louis030195/gptzero-mcp
Detect AI-generated text via the GPTZero API, with confidence scores, probability breakdowns and French and Spanish support.
lpigeon/ros-mcp-server
Control robots by converting natural language commands into ROS or ROS2 control commands.
lpigeon/unitree-go2-mcp-server
Control the Unitree Go2 robot with natural language commands interpreted by an LLM.
LucasGorgal/localfig
Exposes the Figma desktop app's Plugin API on the open file: inline renders, design token reading and one undo step per call, without the cloud API.
LumabyteCo/clarifyprompt-mcp
Turns vague prompts into platform-optimized prompts for AI tools across image, video, voice, music, code, chat and document categories.
Luqueee/kivgraph
Local code graph for coding agents: find code by intent, follow callers and references, inspect blast radius and trace dependencies across…
LWTlong/ai-dev-analytics
Observability for AI coding: tracks token usage and time, and turns AI deviations into persistent project rules.
m00nreport/mcp-server
Test management: author manual test cases, run executions, cut releases and link automated tests, with prompts for flaky-test triage and release…
machinegrade/validate
Deterministic validation of AI-generated artifacts: JSON Schema and OpenAPI response conformance and per-dialect SQL syntax, with typed verdicts and…
madhan-g-p/DevDocs-MCP
Version-pinned, offline documentation sourced from DevDocs.io.
magna-nz/aspnetcore-debugger-mcp
Interactive .NET/ASP.NET Core debugging via netcoredbg: breakpoints, stepping, thread inspection, exception and deadlock analysis, and request…
mahdibrr/dev-error-explainers
Explains known developer errors offline and deterministically (CORS, ESM/CommonJS, npm ERESOLVE, Next.js build, Postgres connection and DATABASE_URL…
mambalabsdev/mcp-domain-deliverability-checker
Audit a domain's email deliverability (SPF, DKIM, DMARC, MX, blacklists, catch-all, domain age) and get a health score via an Apify actor.
MarcelRoozekrans/memorylens-mcp
On-demand .NET memory profiling with JetBrains dotMemory: detects memory leaks, LOH fragmentation and anti-patterns, and suggests code fixes.
MarcelRoozekrans/roslyn-codelens-mcp
Roslyn-based .NET code intelligence: type hierarchies, call graphs, DI registrations, diagnostics, code fixes and complexity metrics from pre-built…
marin1321/mcp-devtools
Scoped access to local dev environments (filesystem, databases, processes, OpenAPI) with a command allowlist and read-only database mode.
martingeidobler/android-mcp-server
Android device control via ADB: screenshots, UI tree inspection, touch automation, logcat and compound actions like tap-and-wait.
masondelan/selvedge
Change tracking for codebases: agents log structured change events with diff and reasoning, then query them via diff, blame, history and search.
MasterPlayspots/motionspec
Reduced-motion and WCAG 2.2.2/2.3.3 verification for web animation: validate animation specs and compile them into reduced-motion-safe CSS.
mattjegan/swarmia-mcp
Read-only access to Swarmia metrics for quick reporting.
mcpware/pagecast
Record browser pages as GIF or video: AI-driven demo recordings with scroll, click and hover interactions via Playwright and ffmpeg.
mcpware/ui-annotator-mcp
Annotates any web page with hover labels for AI assistants via reverse proxy injection, without browser extensions.
mcurmi05/vdiff
Breaking-change diffs for npm packages, so coding agents avoid writing code against outdated APIs.
meanands/npm-package-docs-mcp
Up-to-date documentation for npm packages, fetched from the latest README in the package's GitHub repository.
metabolism-tools/workspace-metabolism
Policy layer for multi-agent workspaces: a JSON file sets what each path is worth, agents dry-run cleanup plans, and actions land in a hash-chained…
MGM-FALCON/quelllm-mcp
Search the quelllm.fr open-weights LLM catalog: compare models by parameters, VRAM per quantization, speed and license, and estimate VRAM and costs.
mhmzdev/Figma-Flutter-MCP
Gives coding agents Figma data to write Flutter code, including asset exports, widgets and full-screen implementations.
Mibayy/token-savior
Structural code intelligence: navigate and edit code by symbol, with dependency graphs, call chains, dead code detection and structural diffs.
Michael-WhiteCapData/ollama-handoff
Offload summaries, drafts, extractions and first-pass code reviews from a cloud LLM agent to a local Ollama model via handoff tools with built-in…
microservices-sh/mcp
Inspect microservices.sh Cloudflare-native modules and templates, generate app plans and projects, run checks and trigger confirmation-gated preview…
MikeRecognex/mcp-codebase-index
Structural codebase indexer for querying functions, classes, imports, dependency graphs and change impact.
MikhailHal/ariadne
Affected-test selection for Kotlin/Android projects: finds the unit tests impacted by working-tree changes via function-level static analysis.
mikusnuz/app-publish-mcp
App Store Connect and Google Play Console: iOS and Android app management, TestFlight, builds, submissions, prices and sales reports.
mikusnuz/cws-mcp
Chrome Web Store extension management: upload, publish, check status, staged rollouts and metadata updates.
mikusnuz/npm-mcp
npm package management: publish, version, search, audit, install and more.
minipuft/claude-prompts-mcp
Reusable prompt templates with multi-step chains, quality gates and reasoning frameworks, exportable as native skills for coding agents.
mithun4elp/briefkit-mcp-server
Generate SaaS specifications for AI build tools: design systems, database schemas and RLS policies.
mmorris35/devplan-mcp-server
Generate step-by-step development plans (PROJECT_BRIEF.md, DEVELOPMENT_PLAN.md, CLAUDE.md) using the ClaudeCode-DevPlanBuilder methodology.
MnemeHQ/mneme
Architectural decision governance for coding agents: submit proposals and query canonical decisions and their lineage, while humans keep final…
mobile-next/mobile-mcp
Android and iOS app and device automation, development and app scraping on simulators, emulators and physical devices.
MobileReality/mdma
Exposes the MDMA spec (interactive Markdown applications with mounted components), authoring prompts, package metadata and live docs.
mockherodev/mcp-server
Synthetic test data generation: detect schemas from SQL or JSON and generate JSON, CSV or SQL data.