Free MCP servers · page 81

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 3841–3888

RepoLens

6

CHAPIBUNNY/repolens

Architecture docs from a repo: overview, modules, API surface, routes, dependency graph, diffs.

LocalFreeProductivity & Project Management

Rigol DHO824 Oscilloscope

6

aimoda/rigol-dho824-mcp

Control and query Rigol DHO824 oscilloscope for waveform capture and measurements

LocalFreeOther Tools & Integrations

Rncp

1163

ALDEBERTArnaud/mcp-rncp

French RNCP/RS certification registers: search, sheets, blocs, validity, SIRET habilitation.

Local + RemoteFreeSearch & Web Scraping

RoselineMCP

6

Atypical-Consulting/RoselineMCP

MCP server for C# code analysis and automated fixing using Roslyn analyzers and code fix providers.

LocalFreeDeveloper Tools

RZD Tickets

2134

ex3lite/mcp_rzd_tickets

Read-only MCP server for RZD trains, cars, seats, adjacent pairs and car photos.

LocalFreeOther Tools & Integrations

Sap Abap SQL

1151

daslabhq/sap-abap-sql-mcp

Checks and fixes ABAP Open SQL for SAP's ADT data-preview console. Connects to nothing.

LocalFreeDatabases

SatRank

0168

proofoftrust21/satrank

Lightning trust + audit oracle. Score, pay, and audit L402 endpoints with Ed25519 receipts.

LocalFreeOther Tools & Integrations

Sber

6

ex3lite/sber-mcp

Unofficial SberBank Online: read accounts and operations, transfer with human approval.

LocalFreeOther Tools & Integrations

Scamcheck

0182

smijo-geek/scamcheck-mcp-server

Scan suspicious messages, URLs, and text for scams with AI. Free tier - no API key required.

Local + RemoteFreeDeveloper Tools

scan

0182

CodingSelim/mcp-scan

Passive security scanner: audits MCP servers against the OWASP MCP Top 10, graded A-F.

LocalFreeSecurity & Identity

second-brain

6

ddmanyes/second-brain-mcp

Self-maintaining knowledge vault: figure-level search, auto-wikilinks, and memory compression.

LocalFreeSearch & Web Scraping

Seedance Prompts

0185

hanshs474/seedance-prompts-mcp

Search, audit and compose AI video prompts — 150 of them, each rendered into a real video

LocalFreeSearch & Web Scraping

Sendsoon

6

sendsoon/mcp

Send email, look up public IP information, and convert files to Markdown through SendSoon.

LocalFreeCommunication

Session Relay

61.8k

Ryrahul/session-relay

Share coding-agent sessions with your team: /share in one agent, /pickup in another.

LocalFreeAI Agents & Coding Agents

Seven Dpt

0178

pierreb4/seven-dpt-mcp

Feynman's twelve-problems method as an MCP server: dormant problems + an evoke loop for new tricks.

LocalFreeOther Tools & Integrations

ShipPage

1143

jieshu666/ShipPage-Skill

Publish HTML or Markdown to a public URL in one call. Zero config, auto-registers on first use.

LocalFreeOther Tools & Integrations

SideButton

6

sidebutton/sidebutton

Open-source MCP server with browser automation and knowledge packs for AI agents

LocalFreeBrowser Automation

Siteglass

0191

siteglassio/siteglass-mcp

Archive any URL to a shareable rrweb/pdf/png snapshot + agent-driven web QA (scan, run E2E flows).

LocalFreeAI Agents & Coding Agents

Skills Anywhere

64.1k

noteflowai/dsh-skills-anywhere

Discover and load Agent Skills from configured local directories and Git sources over stdio MCP.

LocalFreeVersion Control

Software Design

0183

qwertymuzaffar/mcp-software-design

SOLID/OOP/DRY, the 23 GoF patterns, pattern scaffolding, and heuristic code-smell detection.

LocalFreeDeveloper Tools

Sovereign AI Act

0176

saidbazyar/sovereign-ai-act-mcp

Classify any AI system under the EU AI Act: risk tier + binding Articles, verbatim from the law.

Local + RemoteFreeOther Tools & Integrations

Spa Reader

1135

XXO47OXX/spa-reader-mcp

MCP Server that renders JavaScript SPA pages and extracts LLM-ready Markdown content

LocalFreeSearch & Web Scraping

SpaceSentinel

1147

SheldonZhuang/SpaceSentinel

Conversational Windows disk cleanup (whitelist-only) + device cleanup guides in 7 languages.

LocalFreeOther Tools & Integrations

Sprig Fit Images

179

BillyQin/uploadfit

Inspect local photos and crop, resize or compress images to exact dimensions and file-size limits.

LocalFreeMultimedia, Audio & Video

SQL Sentinel

6

tkmawarire/sql-sentinel

SQL Server monitoring and diagnostics for AI agents using Extended Events. No ODBC drivers required.

LocalFreeDatabases

Stillos Swap

0191

stillmarcus24/stillos-swap-mcp

Non-custodial Solana swap via Jupiter, 0.25% fee, free scam-check on every token you buy.

LocalFreeFinance, Fintech & Payments

StudioMeyer Personal Suite

0190

studiomeyer-io/mcp-personal-suite

Local-first productivity: email, calendar, messaging, search, image gen. 49 tools. BYOK.

LocalFreeSearch & Web Scraping

Studydiff

1141

nickjlamb/studydiff

Explain why two scientific papers disagree, every claim grounded in a verbatim source quote.

LocalFreeOther Tools & Integrations

Stuga

6

stuga-dev/stuga

Your AI writes your self-hosted team wiki and answers from it. Its edits await approval by default.

Local + RemoteFreeOther Tools & Integrations

Suitecrm

1153

Anirudhx7/suitecrm-mcp

Open-source MCP gateway for SuiteCRM - 24 CRM tools, OAuth2/OIDC auth, multi-entity, observability.

LocalFreeMonitoring & Observability

Swisstrip

0187

Fabsbags/swisstrip-mcp

Canonical SwissTrip MCP — independent SBB/CFF/FFS schedules, prices, and ticket links by SwissTrip.

Local + RemoteFreeOther Tools & Integrations

Syndicate Links

176

cmcgrabby-hue/syndicate-links

Commission infrastructure for AI commerce — program discovery, attribution, and settlement.

Local + RemoteFreeOther Tools & Integrations

Tctc

0173

kofujimura/tctc-mcp

ERC-7303 token-controlled roles for AI agents: grant, check, and revoke permissions on-chain

LocalFreeAI Agents & Coding Agents

Tempera

6

anvanster/tempera

Persistent episodic memory for AI coding: capture, retrieve, brief, dream cycle, cross-project.

LocalFreeKnowledge, Memory & RAG

TestivAI

6

testivai/testivai-oss

Local-first visual regression for AI agents: verdicts, diff images, explain_snapshot. No API key.

LocalFreeMultimedia, Audio & Video

Tokenmaxxen App

181

AustinMunday/Tokenmaxxen-app

Collective episodic memory for AI coding agents — search, deposit, comment, showcase builds.

LocalFreeSearch & Web Scraping

Tteop

0190

SunrisesIllNeverSee/tteop-mcp

Build, validate, and describe TTEOP telemetry envelopes for AI operator token efficiency.

LocalFreeOther Tools & Integrations

Turkey Data

1143

bodyegypt/turkey-data-mcp

Live Turkey data: gold prices, TCMB FX rates, fuel prices, prayer times, Kandilli earthquakes.

LocalFreeOther Tools & Integrations

Udacity Commit

0194

qwertymuzaffar/mcp-udacity-commit

Validate & format git commit messages per the Udacity Git Commit Message Style Guide.

LocalFreeVersion Control

Understand Anything

0175

uamcp/Understand-Anything-MCP

A powerful MCP server for codebase architecture analysis and automated governance.

LocalFreeDeveloper Tools

Visuals

6

harrybin/visuals-mcp

MCP server for interactive visualizations: tables, images, trees, lists, master-detail

LocalFreeMultimedia, Audio & Video

VK

1145

ssm82/full-vk-mcp

MCP server for VK API with 180+ tools: users, wall, groups, friends, photos, messages.

LocalFreeDeveloper Tools

Vscode Terminal

2108

sirlordt/vscode-terminal-mcp

Execute commands in visible VSCode terminal tabs with output capture and session reuse.

LocalFreeOther Tools & Integrations

What's Allowed

1135

stcmain/whats-allowed-mcp

Merged agent permission rules: which settings file wins, and which rules your client ignores.

LocalFreeAI Agents & Coding Agents

What's Inherited

1160

stcmain/whats-inherited-mcp

What a checkout tells your agent to do: instruction files, hooks, declared MCP servers.

LocalFreeAI Agents & Coding Agents

What's Running

1135

stcmain/whats-running-mcp

Live OS ground truth for agents: running agent sessions, listening ports, daemons, system load.

LocalFreeAI Agents & Coding Agents

WhatsApp

6

adelaidasofia/whatsapp-mcp

WhatsApp MCP. SQLCipher-encrypted, scrubber-CI-gated, draft-and-confirm sends, voice transcription.

LocalFreeCommunication

Wick

0193

myleshorton/wick

Browser-grade web access for AI agents. Fetches any webpage, returns clean markdown.

LocalFreeBrowser Automation