Sequential Thinking MCP

open sourcestdio

Give agents a structured dynamic reasoning scratchpad for complex problem solving

Updated 2026-02-20

Code ExecutionFree· Open source, self-hosted.GitHub Docs

Official MCP server that provides a dynamic, structured scratchpad for agents to think through complex problems step by step. Enables multi-step reasoning with branching, revision, and hypothesis tracking, improving agent quality on hard analytical and planning tasks.

Install

npx -y @modelcontextprotocol/server-sequential-thinking

Runtime: node

Tools (1)

sequentialthinking

A tool for dynamic and reflective problem-solving through sequential thoughts with branching and revision support

thoughtnextThoughtNeededthoughtNumbertotalThoughtsisRevisionrevisesThoughtbranchFromThoughtbranchIdneedsMoreThoughts

Use Cases

·Improve agent accuracy on multi-step analytical tasks
·Enable agents to backtrack and revise reasoning mid-task
·Build planning agents that can maintain and update hypotheses
·Structured problem decomposition for complex workflows

Key Points

•Structured scratchpad for multi-step reasoning with revision and branching
•Agents can revise earlier thoughts as new information emerges
•Useful for planning, analysis, and decision-making tasks
•Official Anthropic-maintained server

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Machine-Readable

This MCP is available as structured JSON via the API.

GET /api/v1/mcps/sequential-thinking