Free MCP servers · page 121

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 5761–5808

Freezetext

1

juergenkoller-software/freezetext-mcp

Screen OCR on macOS via FreezeText: freeze the screen and extract text with Apple Vision, OCR regions or images, and search capture history.

LocalFreeCommand Line & OS Automation

Galley

1

vitofico/galley

MCP bridge for Galley, a local-first Typst editor. Agents read a live project, check real Typst diagnostics and propose diffs a human accepts or rejects.

LocalFreeTypeScriptProductivity & Project Management

Glyphdna

1

TheRealDalaiLama/glyphdna-mcp

Agent identity with self-held Ed25519 keys, verifiable multi-party meeting rooms with co-signed transcript receipts, and script provenance chains.

LocalFreePythonAI Agents & Coding Agents

Gnu Units

1

laszlopere/mcp-gnu-units

Offline unit conversion and dimensional analysis backed by the GNU units database, with compound expressions and reduction to SI base units.

LocalFreePythonData Science & Visualization

Gooo go Ports

1

kimjooyoon/gooo-go-ports/service-grant-mcp

Local stdio server for Gooo-generated service-grant narrowing decisions: checks preservation of one required request and returns the full proof with source/generation bindings. It does not apply grants or authenticate supplied facts.

LocalFreeGoSecurity & Identity

Honest Mbank Parser

1

bartosz-kuc/honest-mbank-parser-mcp

Parses mBank (Poland) CSV transaction exports offline with no bank login. read_statement_header previews client, period, accounts and totals; list_operations filters by date, category, account, description or amount; summarize_operations totals inflow, outflow and net by category, account or month.

LocalFreePythonFinance, Fintech & Payments

Infra

1

esp4ce/infra-mcp

Read-only access to on-prem Linux VMs and PostgreSQL over SSH: service health, logs, database state and table schemas, with allowlists and an audit log.

LocalFreePythonMonitoring & Observability

Inkra

1

juergenkoller-software/inkra-mcp

Bridge to Inkra, the native macOS Markdown editor: document editing, outline navigation, folder browsing, bookmarks and view modes.

LocalFreeProductivity & Project Management

Keyhole

1

L-Jovi/keyhole

Give a private ChatGPT app access to selected local folders through OpenAI Secure MCP Tunnel, with per-folder permissions, hash-checked edits and recovery. No shell or public port.

LocalFreePythonFile Systems & Storage

Kops

1

kaka-milan-22/kops

Read-only kubectl with structured JSON output, hardcoded safe verbs, withheld Secret and ConfigMap values, and one-shot cluster triage and inventory.

LocalFreePythonCloud Platforms

Krds A11y

1

kim-dongho/krds-a11y-mcp

Korea's government design system (KRDS) components with KWCAG 2.2 (Korean web accessibility standard) built in: refuses markup when labels or alt text are missing, checks rendered pages with axe plus real keyboard and contrast measurements, and ships Claude Code/Codex hooks that keep agents from finishing while violations remain.

LocalFreeTypeScriptOther Tools & Integrations

Kut

1

koraykutlu/kut

Local-first personal CRM that keeps your contacts as plain Markdown files. Read-only MCP server (kut.pyw --mcp): search people, open a contact card, see who to reach out to this week, recent conversations and a meeting brief. Contacts marked private are never listed, secrets are masked, and phone numbers and emails are never returned.

LocalFreePythonKnowledge, Memory & RAG

Lgh

1

JoeGlenn1213/lgh

Local Git hosting for coding agents: serve any directory as an HTTP Git remote with push events, commit statuses, secret and large-file detection and backups.

LocalFreeGoVersion Control

Lisamaraventano Spine

1

lisamaraventano-spine/mcp-server

Underground Cultural District: developer utilities (UUID, JSON, Base64, hashing, JWT, regex, cron), creative tools and a marketplace of digital goods.

LocalFreeTypeScriptDeveloper Tools

LiuHe

1

wulun811/LiuHe

Code tools for LLMs to read, understand and modify code, using a tree-sitter parser, SQLite index and transactional writes.

LocalFreeTypeScriptAI Agents & Coding Agents

Mathmethods

1

agmonetti/mathmethods-mcp

Numerical methods: root finding, numerical integration, differential equations (RK4) and Lagrange interpolation.

LocalFreePythonData Science & Visualization

MemCore

1

ManuelWarland/MemCore

Long-term memory shared by every AI coding assistant on one machine: a single local SQLite file with FTS5 search and optional multilingual semantic search, no daemon and no cloud, reachable over MCP, a CLI or plain SQLite.

LocalFreePythonKnowledge, Memory & RAG

ModelSafetyMCP

1

itsalissonsilva/ModelSafetyMCP

Scan ML model artifacts, URLs and directories for unsafe serialization, malicious patterns and risky packaging using ModelScan, PickleScan and heuristics.

LocalFreePythonSecurity & Identity

Molecules

1

laszlopere/mcp-molecules

Chemistry tools from NIST data: molar mass with uncertainties, isotope-distribution mass spectra and name-formula lookup, offline or with online fallback.

LocalFreePythonScience & Research

Multi DB

1

mahAnuj/mcp-multi-db

Unified read-only tools for PostgreSQL, MySQL and SQLite: list databases and tables, describe tables and run queries, enforced at SQL and database level.

LocalFreeTypeScriptDatabases

N8N Workflow Tester Safe

1

Souzix76/n8n-workflow-tester-safe

Test, score and inspect n8n workflows with config-driven test suites, two-tier scoring, execution traces and a built-in node catalog.

LocalFreeTypeScriptDeveloper Tools

Nebulablock

1

Nebula-Block-Data/nebulablock-mcp-server

Access the full NebulaBlock API.

LocalFreeTypeScriptCloud Platforms

Nemeton

1

juergenkoller-software/nemeton-mcp

Control Nemeton, a macOS virtual machine manager built on Apple's Virtualization framework: Linux and macOS VMs, APFS snapshots, console, files and networking.

LocalFreeCommand Line & OS Automation

Networklytics

1

Leekangbum/networklytics-mcp

Social network analysis of YouTube comments: influencer centrality ranking, Louvain community detection and sentiment analysis.

LocalFreePythonDatabases

Nostrpulse Full

1

PHONGUIT22/nostrpulse-full

Agent-to-agent (A2A) commerce framework using Nostr NIP-90 and Cashu eCash micro-settlements.

LocalFreeTypeScriptAggregators & Gateways

Pandaone AI Agent

1

hellob1889/Pandaone-AI-Agent

Requires every AI agent code change to leave a problem, reason and approach audit record before commit, with a pre-commit hook and audit trail dashboard.

LocalFreePythonAI Agents & Coding Agents

Pandastocksdk

1

D-Asce/pandastocksdk

A-share realtime market data via MCP: NATS-pushed quotes, Level2, DDX, capital flow, news. 22 tools, free public test account. Install: pip install pandastock-mcp

LocalFreePythonFinance, Fintech & Payments

Pcq

1

playidea-lab/pcq

ML experiment contracts (cq.yaml plus JSON) to run, validate, compare and trace experiments in any framework, including PyTorch, Lightning and sklearn.

LocalFreePythonData Science & Visualization

PDF Content Search

1

juergenkoller-software/pdf-content-search-mcp

Full-text PDF search with Apple Vision OCR via the PDF Content Search app, with date, category, sender and amount filters, wildcards and boolean operators.

LocalFreeSearch & Web Scraping

Peliqan

1

Peliqan-io/mcp-server-peliqan

Data platform with ETL and built-in data warehouse, access all business applications (ERP, CRM, Accounting etc.) via MCP and run queries on your business data.

LocalFreeFinance, Fintech & Payments

Pod

1

suhui-organization/pod

Least-privilege compiler for agents: record real tool calls, compile a minimal policy, enforce it at an MCP gateway and keep a hash-chained audit.

LocalFreeTypeScriptSecurity & Identity

Pymol

1

wjgoarxiv/pymol-mcp

Headless PyMOL for molecular visualization, GROMACS/LAMMPS trajectories and clathrate-hydrate cage analysis, including H-bond networks and order parameters.

LocalFreePythonScience & Research

Quokkapix

1

quokkapix/quokkapix-mcp

Resize, compress, convert, remove backgrounds, strip metadata, watermark and export images locally through QuokkaPix, without uploading source images.

LocalFreeTypeScriptArt & Design

Redmine Stateless

1

daiji-sshr/redmine-mcp-stateless

Stateless Redmine integration with per-request credentials: list, create and update issues, full-text search across issues and comments, and edit journals.

LocalFreePythonProductivity & Project Management

Resume

1

mnoomnoo/resume-mcp-server

Search local resume and job application documents (.docx, .pdf, .md, .txt) by skill, company and education, and extract work experience and achievements.

LocalFreePythonProductivity & Project Management

Roo Memory

1

mcasdfgf/mcp-roo-memory

Persistent fractal graph memory for coding agents: semantic search, hot/cold/archive context tiers and decision tracking on Qdrant.

LocalFreePythonKnowledge, Memory & RAG

SecureAudit

1

rev2ret/SecureAudit-MCP

Static C/C++ memory-safety scanning and PE/ELF binary protection audits (ASLR, DEP/NX, SafeSEH, PIE), with remediation via secure templates.

LocalFreeTypeScriptSecurity & Identity

Shield

1

rob925/mcp-shield

Static security scanner for MCP servers and agent tools: detects secrets, shell execution, risky tool descriptions, environment access and prompt injection.

LocalFreePythonSecurity & Identity

Shipback Sftp

1

aldohushi1-stack/shipback-sftp

Undoable SFTP deploys to shared hosting (cPanel, Plesk, any SFTP host): backs up every file it replaces on the server, restores with one call and refuses if a live file was edited since; deploy and restore only run a previewed plan, with no delete or skip-backup tools.

LocalFreeTypeScriptCloud Platforms

Sieve

1

gautam-u/sieve-mcp

Local macOS scanner for secrets leaked into AI tool chat transcripts, with redacted findings, placeholder-only redaction and Keychain-backed command execution.

LocalFreeSecurity & Identity

Simple Selenium

1

brutalzinn/simple-mcp-selenium

Control browsers with Selenium using natural language, for testing, automation and multi-user scenarios.

LocalFreeTypeScriptBrowser Automation

Smart Job Apply

1

godikemahesh/smart-job-apply-mcp

Autonomous Model Context Protocol (MCP) server that searches, filters, auto-fills forms, and submits job applications across 8 major job boards (LinkedIn, Naukri, Indeed, Wellfound, etc.) with external ATS navigation and recruiter outreach via Gmail.

LocalFreePythonProductivity & Project Management

Solana

1

AiAgentKarl/solana-mcp-server

Solana blockchain data: wallet balances, token prices, Raydium and Orca DeFi yields, and token safety checks (RugCheck, holder concentration, insiders).

LocalFreePythonFinance, Fintech & Payments

Statuscraft

1

jabbawocky/statuscraft

Check whether software services are down using live data from their status pages, including incident details.

LocalFreeTypeScriptMonitoring & Observability

Tailtest Cline

1

avansaber/tailtest-cline

Adversarial test generation in Cline: detects the stack, writes and runs tests, and classifies failures as real bugs, environment problems or test bugs.

LocalFreePythonAI Agents & Coding Agents

Telinksdk Builder

1

JannLeo/telinksdk-builder-mcp

Build Telink and other embedded SDKs (Eclipse headless, Make or generic) via natural language, with automatic build pattern detection.

LocalFreePythonIoT, Home & Embedded

Terrarium

1

chryaner/terrarium

Fork, break and revert VirtualBox VMs with linked clones and RAM snapshots, and drive GUI-only guests via screenshots and input without SSH or a guest agent.

LocalFreeGoCommand Line & OS Automation

Terse

1

bloriner/terse

MCP server for Terse, an AI-native code language for coding agents: parse, evaluate, transpile to Python, and token-count Terse source over stdio.

LocalFreePythonCode Execution