Free MCP servers · page 215

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.

12,864 servers · showing 10273–10320

Optics

0

mozarkai/optics-agent-plugins

Drive Android, iOS, smart TV and web apps from an agent; save the steps as CSV/YAML test suites.

LocalFreeAI Agents & Coding Agents

optlens

0

jjd-lab/optlens

Debug and explain LP/MILP models: why infeasible, the smallest fix, what-if and sensitivity.

LocalFreeAI Agents & Coding Agents

Or Dmv

0

pipeworx-io/mcp-or-dmv

Oregon DMV MCP — live wait times at all 60 Oregon DMV field offices, plus the office locator the…

Local + RemoteFreeOther Tools & Integrations

Oraclarr

0

bdog720/oraclarr

Read-only-by-default MCP server for diagnosing a self-hosted arr stack (Sonarr, Radarr & more).

LocalFreeOther Tools & Integrations

Oracle Feeds

0

rileybuilds/oracle-feeds-mcp

On-chain price oracles: Chainlink (5 chains) + Pyth, staleness-flagged, no forced RPC key.

LocalFreeOther Tools & Integrations

Oracle Lite

0

bluegemsk/oracle-mcp-lite

Offline Oracle AWR/ASH report analyzer with DBA tuning advice and a top-3 tuning summary.

LocalFreeOther Tools & Integrations

Orangerail

0112

KimHyeongRae0/orangerail

Turns your Prisma schema into typed MCP tools, with destructive writes gated behind human approval

LocalFreeOther Tools & Integrations

OrchestraPrime

0

OrchestraPrime/mcp-server

Regulatory intelligence (FDA, ICH, EMA) and sanctions screening (OFAC, EU, UK) for Claude

LocalFreeAI Agents & Coding Agents

Orchex

wundam/orchex

Autopilot AI orchestration — auto-plan, parallelize, self-heal, and route across 6 LLMs.

LocalFreeAI Agents & Coding Agents

Orchyn

orchynX/mcp

Social intelligence for 8 networks: read posts, creators and trends, then create from them.

Local + RemoteFreeSocial Media

Orionbelt Analytics

ralfbecher/orionbelt-analytics

Ontology-based MCP server for database schema analysis and RDF/OWL ontology generation

LocalFreeDatabases

Orionbelt Semantic Layer

ralfbecher/orionbelt-semantic-layer

API-first semantic layer MCP server compiling YAML models into dialect-specific SQL

LocalFreeDatabases

Orla

0246

cheetah-trade/orla-cli

Personal, family and business books over fiat and crypto. Reads and records; it cannot pay.

Local + RemoteFreeFinance, Fintech & Payments

orm-preflight

0502

sikandar100/orm-preflight

Checks TypeORM migrations for data loss, table locks, and deploy problems before they run.

LocalFreeOther Tools & Integrations

Orphograph

0

Orphograph/Orphograph

Anchor a file's SHA-256 fingerprint to Bitcoin. The file never leaves the device.

LocalFreeFinance, Fintech & Payments

ORSF

orsf-sk/orsf

1.25M+ Slovak companies, aggregated from 8 registers (RPO/ORSR/RÚZ/ZRSR/RPVS/CRZ/ÚVO/FS DPH).

LocalFreeOther Tools & Integrations

Oryx Portal

emiledelarey/oryx-portal

Client editing for sites you built: register, scan, publish, go live, invite the client.

Local + RemoteFreeOther Tools & Integrations

Osdev Wiki

0

0xmortuex/osdev-wiki-mcp

The OSDev wiki (wiki.osdev.org) offline and searchable: search, sections, links.

LocalFreeSearch & Web Scraping

Osf

0

pipeworx-io/mcp-osf

OSF (Open Science Framework, by the Center for Open Science) MCP. Keyless public-data API…

Local + RemoteFreeDeveloper Tools

Osha

0

pipeworx-io/mcp-osha

OSHA MCP — US workplace-safety standards (29 CFR Chapter XVII, parts 1900–1990) AND OSHA…

Local + RemoteFreeOther Tools & Integrations

OSINT

0

robyroro/osint-mcp

Domain and website investigations: batch recon, shared infrastructure, CT history and public lookups

LocalFreeOther Tools & Integrations

ossfind

199

Aniket-kr1030/ossfind

Safety-ranked open-source component discovery for agents across six package ecosystems.

LocalFreeAI Agents & Coding Agents

OT AIops

AIops-tools/OT-AIops

Governed OT tap (57 tools): OPC-UA/Modbus/S7/MC/MTConnect/MQTT/EtherNet-IP/EtherCAT.

LocalFreeOther Tools & Integrations

Otp

0

david-steel/otp-mcp-server

Public MCP for OTP (orgtp.com). Query cross-org best practices, learnings, publishers, patterns.

LocalFreeOther Tools & Integrations

OTP

io.github.david-steel/otp

Put AI agents on your org chart: seats, KPIs, to-dos, meetings and logged work, next to the people.

Local + RemoteFreeData Science & Visualization

OTPilot

0

OTPilot/OTPilot

Use your OTPilot accounts (passwords, 2FA codes) to sign in and run commands, without seeing them.

LocalFreeDeveloper Tools

Ottoref

0

ottonic/standards-mcp-server

ISO 286 limits and fits, ISO 2768 tolerances, material properties, and process limits.

LocalFreeOther Tools & Integrations

Ottorev — Review

0

ottonic/review-mcp-server

Durable review context for CAD: entity names, notes, tags, and revision-bound decisions.

LocalFreeKnowledge, Memory & RAG

Ottosim

0

ottonic/simulation-mcp-server

Thermal, structural, modal, DC, and laminar-flow studies from STEP via Gmsh and Elmer.

LocalFreeOther Tools & Integrations

ouicu

0

kroqdotdev/ouicu-js

Share a dev server or upload a built site at a public https link, and hand the link back.

LocalFreeOther Tools & Integrations

Outbound OS

0

RecepioHQ/outbound-os

Evidence-gated email outreach MCP with dry-run defaults and explicit send approvals.

LocalFreeCommunication

Outlook Classic

0

jli-software/outlook-classic-mcp

Mail, calendar and contacts of classic Outlook on Windows via COM. Single EXE, no Graph app.

LocalFreeProductivity & Project Management

Outlook Mail

0

Pepebits/outlook-mcp

Read, search, send and clean up Outlook.com / Hotmail mail through Microsoft Graph.

LocalFreeSearch & Web Scraping

Ovanek

yofor/ovanek

Ovanek MCP: Model Context Protocol server for Ovanek platform tools; writes are dry-run by default.

Local + RemoteFreeAI Agents & Coding Agents

Overture Places

0

pipeworx-io/mcp-overture-places

Overture Maps places — business and point-of-interest locations (name, category, confidence…

Local + RemoteFreeLocation & Travel

OwnSearch

0

devops-infinity/ownsearch

Quality-ranked SearXNG search over MCP with local fleet state, scoring, and merged results.

LocalFreeSearch & Web Scraping

Oxford Ledge

0

hs902/oxford-ledge-mcp

Ask your assistant; it reads the public record: SEC filings, 13F, insider trades, BDC loans.

Local + RemoteFreeOther Tools & Integrations

p-e relay

0

zaebee/p-e

Read-only access to an append-only corpus of provenance-bearing coordination records.

LocalFreeOther Tools & Integrations

Pa Medical Exclusions

0

pipeworx-io/mcp-pa-medical-exclusions

Pennsylvania Department of Human Services (DHS) Medicheck Precluded Providers List screening…

Local + RemoteFreeOther Tools & Integrations

Paas Build

0

UNIPaaS/paas-build-mcp

Your agent opens a real merchant account (go_live) and takes payments the same day. 3.9% flat.

LocalFreeFinance, Fintech & Payments

PaceProof

0140

RudrenduPaul/PaceProof

Verifies Ed25519-signed attestation records and builds audit reports via MCP tools.

LocalFreeOther Tools & Integrations

Pacevera

0

henryyeh182/evidra

Turns the training evidence you already have into a decision about today's session.

LocalFreeOther Tools & Integrations

Package Registry

mrfentmen/package-registry-mcp

Look up npm and PyPI packages: versions, descriptions, and metadata. No key required.

LocalFreeDeveloper Tools

Packwarden

packwarden-dev/packwarden

Thunderstore mod search, dependency checks and r2modman export. Not affiliated with Thunderstore.

LocalFreeSearch & Web Scraping

Packwright

0

rithwikbabu/packwright-mcp

Packwright compiles, renders, validates, and captures paired Minecraft Java packs.

LocalFreeOther Tools & Integrations

Pagerender Tools

0

nmbrthirteen/pagerender-tools

What search and AI crawlers extract from any public URL. Five of nine tools need no token.

LocalFreeSearch & Web Scraping

Pagespeed Insights

0

pipeworx-io/mcp-pagespeed-insights

Google PageSpeed Insights — runs Lighthouse against any public URL and returns the performance…

Local + RemoteFreeOther Tools & Integrations

Pai Managed

paymentsai/pai-managed

Launch products and branded checkouts on Payments AI, the Merchant of Record for AI-built apps.

LocalFreeFinance, Fintech & Payments