Free MCP servers · page 41

Open source MCP servers that need no paid account or API key, based on each listing. Run them locally with Claude Code or any MCP client.

12,872 servers · showing 1921–1968

Yggdrasil

22

VonderVuflya/Yggdrasil

Local-first memory for AI coding agents on SQLite/FTS5, curated and semantically de-duplicated, with data stored as plain rows you own.

LocalFreePythonKnowledge, Memory & RAG

1Password

22

CakeRepository/1Password-MCP

MCP server for 1Password service accounts — tools and resources for vaults and credentials

LocalFreeOther Tools & Integrations

adrkit decision memory

22

mbeacom/adrkit

Deterministic, offline, read-only ADR decision memory for coding agents. No model or network calls.

LocalFreeKnowledge, Memory & RAG

Agent Rynku

0652

krystiangw/agentrynku-mcp

Public GPW daily prices, financials, ratios, company search, earnings calendar and WZA dividends.

Local + RemoteFreeSearch & Web Scraping

Agent Tasks

221.5k

keshrath/agent-tasks

Pipeline task management for AI agents - stages, dependencies, artifacts, claiming

LocalFreeProductivity & Project Management

Agentic HIL

22

agentic-hil/agentic-hil

Develop firmware on the real board behind a debug probe: flash, reset, UART and CAN, policy-gated.

LocalFreeAI Agents & Coding Agents

Atmy air quality

673

ai.atmy/air-quality

PM2.5 of 300+ cities: now, history, forecast, rankings; 12 000 sensors with a quality rating.

Local + RemoteFreeOther Tools & Integrations

CodeMap

22

bbajt/csharp-code-map

Roslyn-powered MCP server for C#/VB.NET. Query symbols, call graphs, and facts. 90%+ token savings.

LocalFreeDeveloper Tools

Decisionlint

1621

nolindnaidoo/decisionlint

Lint Jev and Luna decision-model questions, or ask the model to check them with your key.

LocalFreeAI Agents & Coding Agents

Dolphin Pilot

22

iflytek/dolphin-mcp-pilot

AI agent interface to Apache DolphinScheduler: 58 MCP tools for workflow orchestration & data ops.

LocalFreeAI Agents & Coding Agents

Domain Security

2600

OrtaMarco/domain-security-mcp-server

Audit a domain's email and web security: SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS, WHOIS. No API keys.

LocalFreeCommunication

Fourchan

0664

mrfentmen/fourchan-mcp

Use this MCP server to 4chan, board catalogs, threads, and posts from the raw internet culture...

LocalFreeOther Tools & Integrations

Freeport

16169

ptrinh/freeport

Search Freeport Nostr events by kind, tag & geohash radius (rides, services, reputation).

Local + RemoteFreeSearch & Web Scraping

Gecko Surf

22

GeckoVision/gecko-surf

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

Local + RemoteFreeSecurity & Identity

hackshop

667

dev.hackshop/hackshop-mcp

Plan and build a physical body for your AI agent: boards, parts list, assembly and pairing.

Local + RemoteFreeAI Agents & Coding Agents

Health Monitor

2600

oaslananka/health-monitor-mcp

Monitor MCP, CI, and HTTP targets with health history, TLS expiry, assertions, and diagnostics

LocalFreeMonitoring & Observability

Hunch

22

PrithviSeran/hunch-mcp

Focus-free macOS control for AI agents: drive your real Mac apps in the background, no stolen focus.

LocalFreeAI Agents & Coding Agents

Jaxonomy

22

machinavitalis/jaxonomy

Build, simulate and calibrate JAX block-diagram models of hybrid dynamical systems.

LocalFreeAI Agents & Coding Agents

JP Bids

669

sugukurukabe/koko-call-mcp

Read-only MCP server for searching Japan government procurement bid information from the KKJ portal.

Local + RemoteFreeSearch & Web Scraping

MAL

3577

Grinv/mal-mcp

MyAnimeList MCP server: Tenrai-powered reads plus official MAL personal-list management.

LocalFreeOther Tools & Integrations

Metacritic

0667

smeet666/mcp-metacritic

Search Metacritic films, shows and games, read scores and critic reviews. No API key.

LocalFreeSearch & Web Scraping

Modelbound

1640

ModelBound/modelbound-mcp-server

Local-first MCP server for agent skills. Validate, lint, diff, and convert across IDEs.

LocalFreeAI Agents & Coding Agents

Opendata Cat

22

xaviviro/Opendata.cat-MCP-Server

15 Catalan portals + radio archive: gov, INE/REE/CNMC, CORA, Catalònica, radioteca.cat.

Local + RemoteFreeOther Tools & Integrations

Optiq

0667

Baukaalm/optiq

Optimise project images locally with verified quality (SSIM or pixel-exact): JPEG, PNG, WebP, AVIF.

LocalFreeMultimedia, Audio & Video

Packet Tracer

14229

Jcorderop02/packet-tracer-mcp

MCP server for Cisco Packet Tracer 9 — live IOS, OSPF, BGP, NAT, VLAN, VoIP, QoS, IPv6, wireless.

LocalFreeOther Tools & Integrations

Paris Compass

1622

IvandeMurard/paris-compass

Paris commercial premises from open data: shopfront history, street turnover, sourced figures.

LocalFreeE-Commerce & Delivery

Sapiom js

22

sapiom/sapiom-js

Local Sapiom developer MCP for authoring, testing, deploying, and inspecting agents.

LocalFreeSecurity & Identity

Shiwake

3563

USHIKUNDESUYO/shiwake-mcp

Journal entry testing (JET) for accounting audits. 15 screening rules, zero dependencies.

LocalFreeFinance, Fintech & Payments

Soleil Clusters

0664

arconkli/soleilpictures

Read and build visual moodboards, shot lists and lookbooks from an AI assistant.

Local + RemoteFreeOther Tools & Integrations

UISandbox

6474

Ideelab/uisandbox

Play with your app's design in the browser: load a build, turn the knobs, export the code.

LocalFreeBrowser Automation

Weapp Agent

22

Chaixueyuan/weapp-agent-mcp

Agent-first MCP server for WeChat Mini Program debugging & automation via WeChat DevTools.

LocalFreeAI Agents & Coding Agents

Fewsats

21

Fewsats/fewsats-mcp

Enable AI Agents to purchase anything in a secure way using Fewsats

LocalFreeAI Agents & Coding Agents

Bundler

21

subelsky/bundler_mcp

Query local information about dependencies in a Ruby project's Gemfile.

LocalFreeRubyData Science & Visualization

Primitiv

21

AI-by-design/primitiv

Local-first design contract layer: scans Figma, code, Storybook and token files, reconciles conflicts and serves a single source of truth for design rules.

LocalFreeTypeScriptDeveloper Tools

User Prompt

21

nazar256/user-prompt-mcp

An MCP server for Cursor that enables requesting user input during generation process.

LocalFreeAI Agents & Coding Agents

ws

21

nick1udwig/ws-mcp

Wrap MCP servers with a WebSocket, for use with kibitz.

LocalFreeOther Tools & Integrations

Aidemo

21

tandryukha/aidemo

Turn a storyboard JSON into a narrated, captioned product-demo MP4 (TTS voiceover, Whisper captions, auto-zoom) via Chrome replay and ffmpeg.

LocalFreeTypeScriptMultimedia, Audio & Video

Ani

3539

gavxm/ani-mcp

AniList integration with taste-aware recommendations, watch analytics, social tools and list management.

LocalFreeTypeScriptArt & Design

Connapse

21

Destrayon/Connapse

Self-hosted knowledge backend for agents with hybrid vector and keyword search and container-isolated indexes.

LocalFreeC#Knowledge, Memory & RAG

Maple

21

maple-kit/maple

Frontend review on deployed previews. Your agent reads reviewers' comments over MCP and resolves them, and a CI check holds the merge until they are.

LocalFreeTypeScriptDeveloper Tools

Mastyf AI

21

mastyf-ai/mastyf.ai

Runtime security proxy for MCP that blocks prompt injection, SSRF, shell/SQL injection and credential exfiltration, plus trust scores for npm MCP packages.

LocalFreeTypeScriptSecurity & Identity

pixelpact

16139

jamalkamaladdin/pixelpact

Extracts a visual contract from a live page or Figma frame and measures a UI implementation against it, one line per property that drifted.

LocalFreeTypeScriptDeveloper Tools

Poland KRS

4523

pkolawa/krs-poland-mcp-server

Access to Polish National Court Register (KRS)—the government's authoritative registry of all businesses, foundations, and other legal entities.

LocalFreeSecurity & Identity

Saglitzdesign

6459

HalidSaglam/saglitzdesign-mcp

Offline UI/UX design and marketing guidance for web, iOS, Android and macOS, plus generators for design tokens, color systems, type scales and WCAG checks.

LocalFreeTypeScriptArt & Design

UI Annotator

21

mcpware/ui-annotator-mcp

Annotates any web page with hover labels for AI assistants via reverse proxy injection, without browser extensions.

LocalFreeTypeScriptDeveloper Tools

Ainative Memory

0631

AINative-Studio/ainative-memory-mcp

Cloud-persistent, semantic-search memory MCP — drop-in for server-memory, backed by ZeroDB.

LocalFreeSearch & Web Scraping

Arena Predictions

625

com.arena-predictions/arena

Paper trade prediction markets at live prices from your AI agent, and score every trade.

Local + RemoteFreeAI Agents & Coding Agents

Awesome Mineflayer

6454

G0Osey99/awesome-mineflayer-mcp

Control a Mineflayer Minecraft bot with 120+ MCP tools: move, mine, craft, fight, build, and see.

LocalFreeOther Tools & Integrations