MCP servers · least privilege

Read-only MCP servers

1,620 MCP servers declare tools that only read: none of their tools is classed write or destructive. That makes them the safest place to start giving an agent access. Read-only describes the tools, not the code, so the audit verdict still decides whether to connect one.

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ModelsAtlas. “Read-only MCP servers”. Retrieved 29 Oct 2026. https://modelsatlas.com/mcp/read-only/page/31

Verdicts · 1,620 servers

✓SAFE913!CAUTION261✕BLOCK446

Transports

A server can list more than one transport.

1,620 servers

721–744 of 1,620 · ranked by trust score, then stars

Crawl4AI

ritvij14/crawl4ai-mcp

✓SAFE B
★ 242 readstdio

Ecovacs

ecovacs-ai/ecovacs-mcp

✓SAFE B

Ecovacs MCP Server

★ 242 readstdio

Elysia

keithagroves/elysia-mcp

✓SAFE B

Model Context Protocol (MCP) Server for Bun and Elysia

★ 242 read

File Preview

seanivore/mcp-file-preview

✓SAFE B

MCP server for HTML file preview and analysis - Has been weird with OS but good on Cline so WIP

★ 242 readstdio

Grep Server

erniebrodeur/mcp-grep

✓SAFE B

simple mcp server to wrap the local instance of grep.

★ 241 read

Jensenify

kenm47/jensenify-mcp

✓SAFE B

An MCP server that helps engineers achieve Jensen Huang's recommended $250k/year compute spend by injecting ~2.9M tokens of canonical Western literature into every AI interaction. Deep humanistic context for every engineering decision.

★ 242 readstdio

Korean Spell Checker

winterjung/mcp-korean-spell

✓SAFE B

MCP(Model Context Protocol) server designed for Korean spell checking

★ 241 readstdio

Langchain Mcp Tools Ts

hideya/langchain-mcp-tools-ts

!CAUTION B

MCP to LangChain Tools Conversion Utility / TypeScript

★ 248 readsse

Limitless

199-mcp/mcp-limitless

✓SAFE B

Advanced MCP Server with AI-powered Limitless API features: natural time queries, meeting detection, action item extraction, daily summaries, and speaker analytics

★ 2414 readstdio

Mcp Client Agent

shane-kercheval/mcp-client-agent

!CAUTION B

CLI that uses DSPy to interact with MCP servers.

★ 245 readstdio

Observer

hesreallyhim/mcp-observer-server

✓SAFE B

An MCP server that provides server-to-client notifications for file changes that the client subscribes to

★ 244 readstdio

Oi-Wiki

shwstone/mcp-oi-wiki

✓SAFE B

🌟 Wiki of OI / ICPC for LLMs. (面向大模型的某大型游戏线上攻略,内含炫酷算术魔法)

★ 241 readstdio

Patchright Lite

dylangroos/patchright-mcp-lite

✓SAFE B

Patchright (Playwright patch) MCP server for lightweight models

★ 244 readstdio

Qwen Max

66julienmartin/mcp-server-qwen_max

✓SAFE B

MCP server for Qwen Max model

★ 241 readstdio

Smart Photo Journal

siddhant-k-code/memory-journal-mcp-server

✓SAFE B

MCP server designed to help you search and analyze your photo library (iCloud - Apple photos)

★ 243 readstdio

Tailscale Echo

remyguercio/tailscale-mcp-echo

✓SAFE B

Identity aware MCP server example using Tailscale serve.

★ 241 readstreamable-http

You.com DX Toolkit

youdotcom-oss/dx-toolkit

✓SAFE B

STDIO bridge for the hosted You.com MCP server at https://api.you.com/mcp.

★ 241 readstdio

Anti-Bullshit

bmorphism/anti-bullshit-mcp-server

✓SAFE B

MCP server for analyzing claims, validating sources, and detecting manipulation using multiple epistemological frameworks

★ 233 readstdio

Medical APIs

pascalwhoop/medical-mcps

✓SAFE B

A collection of MCP tools for AI agents to interact with major biomedical databases

★ 231 readstreamable-http

Meta Discovery

wojtyniak/mcp-mcp

✓SAFE B

Meta-MCP Server that acts as a tool discovery and provisioning service for the Model Context Protocol

★ 231 readstreamable-http

Nobitex

xmannii/nobitex-mcp-server

✓SAFE B

a Model Context Protocol (MCP) server that provides access to cryptocurrency market data from the Nobitex API.

★ 234 readstdio

Screenshot

kazuph/mcp-screenshot

✓SAFE B

Repository for MCP screenshot functionality

★ 231 readstdio

Stadia Maps

stadiamaps/stadiamaps-mcp-server-ts

✓SAFE B

A TypeScript MCP server for interacting with the Stadia Maps APIs

★ 236 readstdio

Twitter RapidAPI

vaibhavgeek/twitter-rapidapi-mcp-x

✓SAFE B

Twitter-RapidAPI-MCP-X is a lightweight API available on RapidAPI that provides streamlined access to Twitter data, including tweets, user info, and trending topics. It's perfect for building social media analytics and monitoring tools.

★ 231 readstdio

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Questions

What does read-only mean here?
A server is listed here when its source declares at least one tool and every tool is classed read: no write tools and no destructive tools.
Is a read-only server always safe?
No. 913 are SAFE, 261 CAUTION and 446 BLOCK on this list. A tool list says what the tools do, not whether the surrounding code is clean, so a read-only server can still be BLOCK.
Why are some servers on no risk list?
615 servers declare no tools we can read, because they build the list at runtime. They cannot be called read-only, so they appear on none of the risk hubs.

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