Free MCP servers · page 54

swnotmetal/Project-Koma/koma-gate-mcp

Classify input for prompt injection and out-of-scope content with Koma Gate's LLM-based classifier.

riza-io/riza-mcp

Arbitrary code execution and tool-use platform for LLMs by Riza

milos-product-maker/context-rot-detection

Monitors agent context health: token utilization, context quality degradation and session fatigue, with 0-100 health scores and recovery recommendations.

Smart-AI-Memory/empathy-framework

Five-level AI collaboration system with persistent local-first memory via MemDocs and anticipatory capabilities.

Sealjay/mcp-hey

Local access to Hey.com email via a cached session: read, search, send, reply and manage the Screener.

arjun1194/insta-mcp

Instagram analytics: account overviews, posts, followers and following lists, post insights, and search for users, hashtags or places.

bluzername/lennys-quotes

Search Lenny's Podcast transcripts with YouTube timestamps for product management insights on PRDs, strategy and PM careers.

QAInsights/locust-mcp-server

Performance testing with Locust.

OpenLinkSoftware/mcp-odbc-server

Generic database (DBMS) connectivity via ODBC.

mattjoyce/mcp-persona-sessions

Structured, persona-driven sessions for interview preparation, personal reflection and coaching, with timers and performance evaluation.

preflight-dev/preflight

Catch vague Claude Code prompts before they waste tokens: prompt scorecards, session history search, cross-service contract awareness and cost estimation.

efremidze/swift-patterns-mcp

Curated Swift and SwiftUI patterns and real-world code examples from sources like Swift by Sundell and SwiftLee.

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 compaction.

gchen19/AnkusDrive

Drive a local FreeCAD from an agent: parametric CAD, TechDraw drawings with GD&T, CalculiX FEM, and CFD, thermal, EM and multiphysics simulation.

cocaxcode/api-testing-mcp

API testing: per-project environments with variable interpolation, saved collections, multi-step flows, assertions, load testing and OpenAPI mock generation.

LinuxSuRen/atest-mcp-server

Manage API test suites and test cases with atest.

tinqiao-oss/clawtouch-mcp

Physical USB HID keyboard and mouse control via a Raspberry Pi Pico 2: move, click, drag, type, key combos and scroll, with a mock mode for testing.

madhan-g-p/DevDocs-MCP

Version-pinned, offline documentation sourced from DevDocs.io.

Sowiedu/Edict

Agent-oriented programming language: agents emit a JSON AST that the compiler validates, type- and effect-checks, verifies with Z3/SMT and compiles to WASM.

henilcalagiya/google-sheets-mcp

Google Sheets automation tools.

Archerkattri/mathlas

Math tools for agents: theorem search, PSLQ constant identification, OEIS lookup, Lean kernel checks and applicability checklists.

TheGoatPsy/mneme

Vault-native, accountable memory for Claude Code: Markdown is the source of truth, with no LLM on the Stop path and redaction before any derived store.

The-40-Thieves/obsidian-tc

Obsidian vault access with role-based access control, native search, multi-vault support, pluggable embeddings and SLSA provenance.

MendleM/Pipepost

Draft SEO-scored articles, cross-post to Dev.to, Ghost, Hashnode, WordPress and Medium, create social posts, add Unsplash covers and submit URLs to IndexNow.

hoainho/podium-mcp

Mobile E2E testing on macOS: iOS Simulator control, native UI automation, Maestro flows, React Native debugging and WebView DOM inspection.

jacksenechal/scan-mcp

Minimal MCP server for scanner capture (ADF/duplex/page-size); typed tools; JSON Schema–validated I/O; multipage assembly; Node 22 + SANE.

temporal-cortex/mcp

Calendar middleware for scheduling, multi-calendar availability and conflict-free booking across Google Calendar, Outlook and CalDAV, with RRULE expansion.

IBAN/VAT/BSN checks, Dutch tax and dates, cron, regex, conversions and PDF or screenshot rendering.

dominikamann/agent-mail-gateway

Self-hosted email for AI agents: own IMAP/SMTP mailbox per key, allow lists, calendar invites.

agencyenterprise/aiseo-audit

Audit web pages for AI search readiness with evidence-tiered factors and pipeline-stage scores.

Altssdata/public-client

Search and read bounded published Altss profile summaries with canonical citations. No private data.

The-Warl0ck/anvil-mcp

Local physics/chemistry bench as MCP: plain words in, 12-domain simulations out.

ArmorNGlory/armornglory-mcp-server

Shop Christian streetwear: scripture hats, Bible verse tees, hoodies, foam clogs, and faith gifts

lacausecrypto/mcp-belgium

Single MCP server for Belgian public transport, statistics, open data, and geospatial services.

ninadphalak/LLM-Shield-Proxy

Checks whether your streaming redactor leaks a secret split across chunks; writes a pytest for it.

yubinbin32-ops/ContextOS

Context exoskeleton for AI development: reduce token usage and context occupancy.

alphasafal/contri

Is this GitHub issue free to take, is the project alive, will maintainers reply? Read-only.

open-covenant/covenant

Hard spend cap, OS sandbox, and signed receipts for unattended coding agents like Claude Code.

markankamaransheogarat-sys/crypto-pulse-mcp

Read-only crypto market data: prices, funding, open interest, DeFi TVL, stablecoins. No API keys.

jarvisluk/cyberbrick-mcp

Drive the Bambu Lab CyberBrick desktop app: connect devices, edit firmware config, flash.

mikkelmanniche-dk/dk-regnskab-mcp

Key figures, history and all tagged facts from Danish companies' annual reports (XBRL).

datris/datris-platform-oss

The data control plane for AI agents — acquire, validate, land, and query data over MCP.

shreyassaw5394/debuganything

Observe any running process from your agent. strace, py-spy, perf, lsof, tcpdump as evidence.

casancam/Dungeondraft-MCP

Read, edit and export Dungeondraft maps; convert Universal VTT (.dd2vtt) into Foundry VTT scenes

ellmos-ai/ellmos-clatcher-mcp

Utility MCP server: JSON repair, encoding fixes, conversion, duplicates, batch rename, archives.

ellmos-ai/ellmos-homebase-mcp

Local-first LLM orchestration: memory, knowledge, state, routing, swarm, API discovery, plugins.

stramanu/esp32sim-mcp

Boot and test ESP32 firmware in a local emulator: UART asserts, buttons, virtual WiFi, screenshots.

sind00/flippa-mcp

Search, analyze, and evaluate online businesses for sale on Flippa.com marketplace.