Free MCP servers · page 12

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 529–576

Apache Airflow

181

yangkyeongmo/mcp-server-apache-airflow

Connect to Apache Airflow.

LocalFreePythonDeveloper Tools

Comet

181

hanzili/comet-mcp

Connect to the Perplexity Comet browser for agentic browsing, deep research and real-time task monitoring.

LocalFreeTypeScriptBrowser Automation

AlibabaCloud DevOps

180

aliyun/alibabacloud-devops-mcp-server

Yunxiao MCP Server provides AI assistants with the ability to interact with the Yunxiao platform.

LocalFreeDeveloper Tools

Egovframe Scaffold

35.3k

EricSeokgon/egovframe-scaffold-mcp

eGovFrame (전자정부 표준프레임워크) projects: templates, components, CRUD, build, 5.x migration, dependencies

LocalFreeProductivity & Project Management

zanadir

180

MustacheCase/zanadir

Find what a repository's CI is missing, and which security checks cannot fail the build.

LocalFreeSecurity & Identity

Duckdb

179

ktanaka101/mcp-server-duckdb

DuckDB database integration with schema inspection and query capabilities.

LocalFreePythonDatabases

Schemagate

179

ashishsinha1602/schemagate

Selects the schema objects a SQL agent sees and returns only the tables the calling principal may read, on Postgres, Oracle, MySQL and SQL Server.

LocalFreePythonDatabases

X-Use

179

ihuzaifashoukat/x-use

Multi-account X (Twitter) automation via a real Chrome session: posting, replies, search, engagement and scheduled actions, with draft approval by default.

LocalFreePythonSocial Media

Rsigma

178

timescale/rsigma

Author, lint, validate and convert Sigma detection rules with RSigma, evaluate and explain detections against log events, and inspect correlation state.

LocalFreeRustSecurity & Identity

CLI

177

MladenSU/cli-mcp-server

Command-line execution with customizable security policies.

LocalFreePythonAI Agents & Coding Agents

ClassCAD

177

awv-informatik/classcad-ai

Build and verify CAD parts and assemblies with the ClassCAD engine, locally, no server needed.

LocalFreeOther Tools & Integrations

Bitview

177

bitcoinresearchkit/mono

Read-only Bitcoin blockchain, mempool, mining, market, and on-chain analytics; no API key.

RemoteFreeFinance, Fintech & Payments

Langfuse Prompt Management

176

langfuse/mcp-server-langfuse

Access and manage LLM application prompts created with Langfuse Prompt Management.

LocalFreePythonDeveloper Tools

Mongo

176

QuantGeekDev/mongo-mcp

A Model Context Protocol (MCP) server that enables LLMs to interact directly with MongoDB databases

LocalFreeTypeScriptDatabases

Argon

176410

argon-lab/argon

Versioned MongoDB sandboxes for AI agents: branch, time-travel, merge, and undo over MCP.

LocalFreeDatabases

In Memoria

175

pi22by7/In-Memoria

Cumulative memory and pattern learning for coding assistants, with local SQLite/SurrealDB storage for semantic codebase analysis.

LocalFreeTypeScriptKnowledge, Memory & RAG

Make

174

integromat/make-mcp-server

Turn Make scenarios into callable tools for AI assistants.

LocalFreeTypeScriptOther Tools & Integrations

One Search

147768

yokingma/one-search-mcp

Web search, URL discovery, scraping & extraction with agent-browser and search providers

LocalFreeBrowser Automation

X64dbg

1371.1k

bromoket/x64dbg_mcp

MCP server for x64dbg debugger - 23 mega-tools for AI-powered reverse engineering and debugging

LocalFreeOther Tools & Integrations

AI Distiller

172

janreges/ai-distiller

Extracts essential code structure from large codebases into an AI-digestible format so agents write code that correctly uses existing APIs.

LocalFreeGoDeveloper Tools

Akb

164201

dnotitia/akb

Organizational knowledge base: Markdown docs, PostgreSQL tables and files linked by a URI graph, with hybrid search, Git history and multi-tenant ACLs.

LocalFreePythonKnowledge, Memory & RAG

Agent Security Scanner

1231.4k

sinewaveai/agent-security-scanner-mcp

Security layer for AI agents: blocks prompt injection, detects fake packages, scans vulnerabilities.

LocalFreeSecurity & Identity

Benzi

171

oooscoos/Benzi

Compiler-backed code intelligence: calls, data flow, references and class hierarchy as tools.

LocalFreeDeveloper Tools

Mysql

169

f4ww4z/mcp-mysql-server

MySQL database integration for secure database operations.

LocalFreeTypeScriptDatabases

Free Search

169

sweetcornna/free-search-mcp

No-API-key web search, page fetching and document reading across many engines. Local-first.

LocalFreeSearch & Web Scraping

Wayback Machine

613.2k

Mearman/mcp-wayback-machine

MCP server and CLI tool for interacting with the Wayback Machine without API keys

LocalFreeDeveloper Tools

Zettelkasten

168

entanglr/zettelkasten-mcp

Zettelkasten knowledge management: create, link and search atomic notes.

LocalFreePythonKnowledge, Memory & RAG

ru-marketplace

168

Vladimir-Human/ru-marketplace-mcp

Read-only MCP servers for Russian marketplaces: prices, stock, ratings, reviews, seller identity

LocalFreeFinance, Fintech & Payments

Hostinger

167

hostinger/api-mcp-server

Official Hostinger API MCP server for services managment.

Local + RemoteFreeDeveloper Tools

Bykaranteli

25k

bykarantelicom/bykaranteli-mcp

Crypto derivatives data: funding, OI, liquidations, options, ETF flows. Free account key required.

Local + RemoteFreeFinance, Fintech & Payments

Faucet

167

faucetdb/faucet

SQL database to MCP tools and REST API: PostgreSQL, MySQL, SQL Server, Oracle, SQLite, Snowflake.

LocalFreeDatabases

Funnel

158263

chris-schra/mcp-funnel

MCP proxy that aggregates multiple servers with tool filtering and customization

LocalFreeOther Tools & Integrations

any-chat-completions

166

pyroprompts/any-chat-completions-mcp

Chat with any OpenAI SDK-compatible Chat Completions API, such as Perplexity, Groq and xAI.

LocalFreeOther Tools & Integrations

Agent Lsp

166

blackwell-systems/agent-lsp

Stateful layer over real language servers: persistent sessions keep indexes warm, and speculative execution simulates edits in memory before writing to disk.

LocalFreeGoDeveloper Tools

Godot Enhanced

1031.9k

wgt19861219/godot-mcp-enhanced

Enhanced Godot 4.5-4.7 MCP: headless+editor+bridge, secure GDScript sandbox, closed-loop AI dev.

LocalFreeOther Tools & Integrations

Technocore Chat

166

flop-labs/technocore-chat

Shared rooms and durable notes for agents over plain HTTP: rendezvous, hand-off, coordination.

Local + RemoteFreeKnowledge, Memory & RAG

Vnsh

158240

raullenchai/vnsh

Portable workspaces for AI agents: one encrypted link any agent can read and write

LocalFreeProductivity & Project Management

Piia Engram

165

Patdolitse/piia-engram

Persistent user identity across AI tools: preferences, lessons and decisions in local JSON with staged verification, AES-256-GCM encryption and cross-tool sync.

LocalFreePythonKnowledge, Memory & RAG

onsystem

1652.8k

dgesteves/onsystem

Catches palette colors, native elements and APIs your design system lacks in agent-written React.

LocalFreeAI Agents & Coding Agents

KSail

164

devantler-tech/ksail

SDK for creating, managing, and operating Kubernetes clusters and workloads with ease.

LocalFreeCloud Platforms

Pubmed

164

cyanheads/pubmed-mcp-server

Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.

Local + RemoteFreeSearch & Web Scraping

Read Website Fast

163

just-every/mcp-read-website-fast

Fast, token-efficient web content extraction that converts websites to clean Markdown. Features Mozilla Readability, smart caching, polite crawling with robots.txt support, and concurrent fetching with minimal dependencies.

LocalFreeTypeScriptSearch & Web Scraping

Servo Fetch

163

konippi/servo-fetch

Chromium-free web content extraction in a single binary: fetch, render, crawl and screenshot pages with the Servo browser engine.

LocalFreeRustSearch & Web Scraping

Forge Orchestrator

163

nxtg-ai/forge-orchestrator

Forge orchestrator MCP server for Claude Code (alpha). Codex/Gemini runners are not in the alpha.

LocalFreeAI Agents & Coding Agents

PDF

163

jztan/pdf-mcp

Agentic RAG over one PDF or a whole folder: hybrid search, selective page reads, tables, OCR.

LocalFreeSearch & Web Scraping

PoloPan Fashion

14.9k

rofoso-com/polopan-fashion-mcp

Fashion & apparel MCP: visual outfit search, stock verification, and 1-click checkout.

Local + RemoteFreeFinance, Fintech & Payments

Web Browser (kogiQA)

912.2k

atagon-GmbH/kogiqa-mcp

This web browser has been designed to help your agent debug and develop complex web applications.

LocalFreeBrowser Automation

Excalidraw Architect

162

BV-Venky/excalidraw-architect-mcp

Generate Excalidraw architecture diagrams with auto-layout, technology-aware component styling (databases, queues, caches) and stateful editing.

LocalFreePythonArt & Design