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.
Cite
Cite this page
ModelsAtlas. “Read-only MCP servers”. Retrieved 29 Oct 2026. https://modelsatlas.com/mcp/read-only/page/12
Verdicts · 1,620 servers
Transports
- stdio, runs locally1,124
- Streamable HTTP, remote555
- SSE, legacy remote133
- Not declared284
A server can list more than one transport.
1,620 servers
265–288 of 1,620 · ranked by trust score, then stars
Unreal API
codeturion/unreal-api-mcp
Instant, accurate Unreal Engine API lookups instead of expensive source file reads, saving your agent tokens, context, and hallucinations.
Open Library
8ensmith/mcp-open-library
A Model Context Protocol (MCP) server for the Internet Archive's Open Library API that enables AI assistants to search for book and author information.
Flux UI
iannuttall/flux-ui-mcp
Octagon Deep Research
octagonai/octagon-deep-research-mcp
The Octagon Deep Research MCP server provides specialized AI-powered comprehensive research and analysis capabilities by integrating with advanced deep research agents. No rate limits, faster than ChatGPT Deep Research, more thorough than Grok DeepSearch or Perplexity Deep Research.
A11y
ronantakizawa/a11ymcp
MCP Server for Web Accessibility Testing (10k+ Downloads, #20 on ProductHunt)
Atom of Thoughts
dioptx/mcp-atom-of-thoughts
MCP server for structured AI reasoning — decompose problems into atomic thoughts with dependency graphs, confidence tracking, and interactive D3.js visualization
Ragie
ragieai/ragie-mcp-server
Ragie Model Context Protocol Server
Chess.com
pab1it0/chess-mcp
A Model Context Protocol server for Chess.com's Published Data API. This provides access to Chess.com player data, game records, and other public information through standardized MCP interfaces, allowing AI assistants to search and analyze chess information.
GitHub Chat
asyncfuncai/github-chat-mcp
A Model Context Protocol (MCP) for analyzing and querying GitHub repositories using the GitHub Chat API.
Lucidity
hyperb1iss/lucidity-mcp
AI-powered code quality analysis using MCP to help AI assistants review code more effectively. Analyze git changes for complexity, security issues, and more through structured prompts.
ReAPI OpenAPI
reapi-com/mcp-openapi
OpenAPI specification MCP server.
RimSage
realloon/rimsage
An MCP server that enables searching and browsing of RimWorld source code.
Augmented Nature ChEMBL
augmented-nature/augmented-nature-chembl-mcp-server
A comprehensive Model Context Protocol (MCP) server providing advanced access to the ChEMBL chemical database.
ChEMBL
augmented-nature/chembl-mcp-server
A comprehensive Model Context Protocol (MCP) server providing advanced access to the ChEMBL chemical database.
OPNsense
pixelworlds/opnsense-mcp-server
Modular MCP server for OPNsense firewall management - 88 tools providing access to 2000+ methods through AI assistants
iPhone
blitzdotdev/iphone-mcp
The MCP Server the lets AI use an iPhone
Naver Search
isnow890/naver-search-mcp
MCP server for Naver Search API integration. Provides comprehensive search capabilities across Naver services (web, news, blog, shopping, etc) and data trend analysis tools via DataLab API.
Secondhand
jlsookiki/secondhand-mcp
MCP server for searching secondhand marketplaces — Facebook Marketplace, eBay, and Depop. Works with Claude Desktop, Claude Code, and other MCP clients.
DuckDuckGo Search
zhsama/duckduckgo-mcp-server
Deep Web Research
qpd-v/mcp-deepwebresearch
Enhanced MCP server for deep web research
Semantic Scholar
jackkuo666/semanticscholar-mcp-server
🔍 This project implements a Model Context Protocol (MCP) server for interacting with the Semantic Scholar API. It provides tools for searching papers, retrieving paper and author details, and fetching citations and references.
Spline
aydinfer/spline-mcp-server
An MCP server for working with Spline 3D design tool API
OpenAI Integration
pierrebrunelle/mcp-server-openai
Query OpenAI models directly from Claude using MCP protocol.
Gemini Google Search
yukukotani/mcp-gemini-google-search
MCP server for Google Search integration using Gemini's built-in search capabilities
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