MCP servers that ship as code — a repository or a package you install and run locally (usually over stdio). They have no hosted endpoint, so we cannot probe or grade them: instead each one shows its repository, install command, license, stars and when it was last updated.
Collected from GitHub repositories and npm, PyPI, Cargo, Go, Maven, NuGet and RubyGems packages tagged as MCP servers, the official MCP Registry, Docker's MCP catalog, ModelScope, Baidu MCP World, Cline and other public directories; one entry per repository. A server that also offers a hosted endpoint is listed under Remote instead. These entries are not counted in our reachability, verification or readiness statistics.
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viveka-mcp-serverupdated this year
MCP server for structured iterative reasoning with 13 critical thinking lenses — a disciplined thinking scaffold for AI agents. Features structured reasoning state, cognitive moves (branch/revise/supersede/falsify/verify/retract/stop), Escalation Ladder,
npm MIT -
An MCP server for planning, execution and validation: Structured reasoning (think_*) + execution tracking (ship_*) + roadmap + signals for AI coding agents. Rust · stdio + Streamable HTTP · git-native, Agent-Trace-compatible traces.
MIT ★ 2 -
steelmind-mcpgithub.com/stabgan/steelmind-mcpupdated this year
Research-grounded structured thinking + steel-manning verification for AI agents via MCP. Sequential step tracking with cognitive mode separation. Backed by 43+ papers.
MIT ★ 1 -
Structured thinking grids for AI agents - standalone MCP server, zero dependencies, deterministic v2 frames
Apache-2.0 ★ 1 -
Plain, structured thinking while you work. It's free, open, and local-first.
MIT ★ 1 -
Clear Thought Serverno update data
Provide systematic thinking, mental models, and debugging approaches to enhance problem-solving capabilities. Enable structured reasoning and decision-making support for complex problems. Facilitate integration with MCP-compatible clients for advanced cognitive workflows.
smithery -
Provide enhanced problem-solving capabilities by leveraging systematic thinking, mental models, and debugging approaches. Enable structured reasoning and decision-making support for complex challenges. Facilitate integration with MCP-compatible clients for advanced cognitive workflows.
smithery -
give your AI agent a spreadsheet it can actually think in: deterministic Excel-compatible math + structured memory (blocks), real .xlsx out. Open source, self-hostable.
MIT ★ 41 -
verifiable-thinking-mcpgithub.com/coderdayton/verifiable-thinking-mcpupdated this year
MCP server for structured reasoning with cognitive trap detection
npm MIT -
thinking-toolsgithub.com/mordiaky/thinking-toolsupdated this year
63 MCP tools for structured AI reasoning — ideation, hypothesis tracking, decision matrices, mental models, and more
MIT -
MCP server for structured AI reasoning — decompose problems into atomic thoughts with dependency graphs, confidence tracking, and interactive D3.js visualization
MIT ★ 95 -
forge-thinkgithub.com/halflifezyf2680/forge-thinkupdated this year
Structured multi-step orchestration for MCP agents: adversarial lenses, reusable SOP workflows, and persistent traces.
MIT ★ 3 -
@rvry/mcpupdated this year
Reasoning depth enforcement for LLMs. Seven structured analysis tools and 18 mental-model templates for Claude Code, Claude Desktop, Codex, and any MCP client.
npm MIT -
MCP server for analogical reasoning: structured pattern mapping, domain-to-domain structure alignment, and explainable inference
npm MIT -
fpf-thinker-assistantgithub.com/nergal-perm/fpf-thinker-assistantupdated this year
A specialized subsystem designed to guide humans and AI agents through rigorous First Principles reasoning. It acts as the "Laboratory" of the system, providing the *soft constraints* (heuristics, cognitive scaffolding, prompt engineering) required to convert vague "Problems" into structured "Hypotheses" and "Decisions".
MIT