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MCP servers tagged reasoning
20 live MCP servers tagged "reasoning", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with reasoning.
Microsoft Clarity
A Model Context Protocol server providing structured reasoning and thinking tools with memory graph
Haft
Engineering decisions engine that know when they're stale. Frame, compare, decide — with evidence decay and parity enforcement. For Claude Code, Cursor, Gemini CLI, Codex and mor…
Metacog
MCP server for meta-cognitive reasoning strategies and problem resolution.
Agentic AI
Agentic AI research papers, benchmarks, frameworks, and tools curated across 24 domains.
Open Ontologies
AI-native ontology engine: a Rust MCP server with tools for building, validating, querying, and reasoning over RDF/OWL ontologies. In-memory Oxigraph triple store, native OWL2-DL…
Ontosphere
Browser-based RDF/ontology knowledge graph editor — load RDF from files, URLs or SPARQL endpoints; author nodes and edges on the canvas; run OWL-RL reasoning; apply multi-algorith…
Lemoncrow
Faster runtime for coding agents. Make coding agents 25% faster and 30% cheaper on average while keeping the quality same or more. Same Task, Same Quality, Faster and Cheaper.
VSCode Perplexity MCP
Perplexity AI search, reasoning, research, and compute - MCP server, dashboard, and multi-IDE auto-config for VS Code.
Yggdrasil
Reasoning orchestration MCP - Tree of Thoughts with multi-agent evaluation. Fork of Anthropic's sequential-thinking with string coercion fix.
Thinkseq
An thinking and reasoning engine for the Model Context Protocol (MCP).
Server Perplexity
Enhanced MCP server with comprehensive Perplexity API parameter support for advanced development assistance
Zerodb Sequential Thinking
Persistent sequential thinking MCP — chain-of-thought reasoning that survives sessions, resumes across agents, and saves conclusions as plan artifacts. Powered by ZeroDB. Zero-con…
Cognitive Tools
Revolutionary Single-Tool-Call MCP server with Enhanced 6-Stage Cognitive Deliberation Framework combining Scientific Investigation, OOReD, and Critical Thinking methodologies wit…
Think MCP Tool
An MCP server that provides a 'think' tool for structured reasoning, based on Anthropic's engineering research
Deepthinking
Comprehensive MCP server with 34 reasoning modes (30 accessible via 13 focused tools) including historical reasoning, academic research (synthesis, argumentation, critique, analys…
rikarazome/prolog-reasoner
only accuracy on 30 logic problems.
hubinoretros/deep-thinker
thinker`
Atelier
Open-source context runtime and governance layer for coding agents. MCP server + Python SDK (Anthropic, LangChain, OpenAI Agents, Google ADK) with shared procedures, failure rescu…
Self Inspect MCP
Keyless heuristic self-inspection tool: an agent describes a thought or task and always gets back one metathought. Deterministic routing over an open CSV (no LLM). REST + MCP.
Forgewisp Core
Forgewisp — safe, function-calling AI agents for the browser. Register your own functions as validated tools, with risk-tier execution, OpenAI-compatible streaming, dual reasoning…