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/22

Verdicts · 1,620 servers

✓SAFE913!CAUTION261✕BLOCK446

Transports

A server can list more than one transport.

1,620 servers

505–528 of 1,620 · ranked by trust score, then stars

Kagi Ken

czottmann/kagi-ken-mcp

✓SAFE B

Unofficial MCP server for working with Kagi *without* API access (you'll need to be a customer). Searches and summarizes. Uses Kagi session token for easy authentication. Works well with your agent.

★ 422 readstdio

Npx Fetch

tokenizin-agency/mcp-npx-fetch

!CAUTION B

A powerful MCP server for fetching and transforming web content into various formats (HTML, JSON, Markdown, Plain Text) with ease.

★ 424 readstdio

The Librarian

aka-kika/the-librarian

✓SAFE B

Skill librarian MCP server — every installed skill costs tokens; the librarian keeps your whole collection out of agent context. Agents ask, get the few right skills for the task, and their outcomes curate the collection. Fully local: Ollama + SQLite + optional Apple Intelligence.

★ 425 readstdio

Timeserver

secretiveshell/mcp-timeserver

✓SAFE B

A simple MCP server that exposes datetime information to agentic systems and chat REPLs

★ 421 readstdio

Alive Analysis

with-geun/alive-analysis

✓SAFE B

Data analysis workflow kit for AI coding agents. Structure your analysis with the ALIVE loop — Ask, Look, Investigate, Voice, Evolve.

★ 414 readstdio

Fetch

kazuph/mcp-fetch

✓SAFE B
★ 411 readstdio

Google Patents

kunihiros/google-patents-mcp

✓SAFE B
★ 411 readstdio

Iceberg

ryft-io/iceberg-mcp

✓SAFE B
★ 415 readstdio

National Parks

kyrietangsheng/mcp-server-nationalparks

✓SAFE B
★ 416 readstdio

OMOP

ohnlp/omop_mcp

✓SAFE B

Model Context Protocol (MCP) server for mapping clinical terminology to Observational Medical Outcomes Partnership (OMOP) concepts using Large Language Models

★ 412 read

Simple Files Vectorstore

lishenxydlgzs/simple-files-vectorstore

✓SAFE B

A simple vector store that indexes content of files on local file system

★ 412 readstdio

Sketchfab

gregkop/sketchfab-mcp-server

✓SAFE B

This is an MCP (Model Context Protocol) Server for discovering and downloading 3D models

★ 414 readstdio

WebSearch

mnhlt/websearch-mcp

✓SAFE B

[Self-hosted] A Model Context Protocol (MCP) server implementation that provides a web search capability over stdio transport. This server integrates with a WebSearch Crawler API to retrieve search results.

★ 411 readstdio

1C Platform Tools

yellow-hammer/mcp-1c-platform-tools

!CAUTION B

MCP-сервер расширения 1C: Platform Tools для AI-агентов VS Code и Cursor: тесты, сборка, профили запуска и работа с базой в проектах конфигуратора, 1С:EDT и OneScript.

★ 401 readstdio

AntV

antvis/mcp-server-antv

✓SAFE B

🧑🏻💻 MCP Server for @antvis visualization development, which provides documentation context and examples for visualization developers.

★ 4010 readstdio

Apollo.io

lkm1developer/apollo-io-mcp-server

✓SAFE B

apollo.io mcp server typescript

★ 407 readstdio

Arxiv

prashalruchiranga/arxiv-mcp-server

✓SAFE B

An MCP server that enables interacting with the arXiv API using natural language

★ 405 readstdio

Binder

mpazik/binder

✓SAFE B

Headless knowledge base with bidirectional Markdown sync

★ 4052 read

Exif

stass/exif-mcp

✓SAFE B

MCP server to extract image metadata (EXIF, XMP, etc)

★ 407 readstdio

Hacker News

pskill9/hn-server

✓SAFE B

Hacker news MCP server

★ 401 readstdio

Image Recognition

mario-andreschak/mcp-image-recognition

✓SAFE B

An MCP server that provides image recognition 👀 capabilities using Anthropic and OpenAI vision APIs

★ 402 read

Linkup

linkupplatform/python-mcp-server

✓SAFE B

Linkup is world's best search for AI applications

★ 401 readstdio

Local Skills

kdpa-llc/local-skills-mcp

✓SAFE B

Portable local skills for MCP clients, with on-demand loading, validation, and trigger evaluation.

★ 4013 readstdio

OpenCTI Server

spathodea-network/opencti-mcp

✓SAFE B

MCP server for querying OpenCTI threat intelligence, indicators, reports, malware, and threat actors.

★ 4016 readstdio

Other risk hubs

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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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