@modelcontextprotocol/server-sequential-thinking

MCP Sequential Thinking Server by Model Context Protocol

MCP server for sequential thinking and problem solving

Live Registry Versionv2.0.0Previous: v1.0.0Published 2026-10-19

Stability Grade

B+ (86/100)

90-Day Velocity

3 releases

Stable release cadence

Dependencies

4 direct

NPM manifest

License

SEE LICENSE IN LICENSE

Verified on NPM

Recommended Exact Pin: npx -y @modelcontextprotocol/server-sequential-thinking@2.0.0

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

MCP Sequential Thinking Server (@modelcontextprotocol/server-sequential-thinking) is currently at v2.0.0 on NPM (published 2026-10-19), with a 90-day stability score of 86/100 (B+) and MEDIUM schema drift risk across 3 releases in the past 90 days. Major v2.0.0 release adds structured outputSchema validation to sequentialthinking tool responses and requires strict boolean nextThoughtNeeded. Production teams should pin npx -y @modelcontextprotocol/server-sequential-thinking@2.0.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Major v2.0.0 release adds structured outputSchema validation to sequentialthinking tool responses and requires strict boolean nextThoughtNeeded.

Watched Exports / MCP Tool Signatures:

sequentialthinking

Before (Deprecated / Unpinned Pattern)

{ "thought": "Step 1", "thoughtNumber": 1, "totalThoughts": 3, "nextThoughtNeeded": "true" }

After (Verified v2.0.0 Pattern)

{ "thought": "Step 1", "thoughtNumber": 1, "totalThoughts": 3, "nextThoughtNeeded": true }

Frequently Asked Questions: @modelcontextprotocol/server-sequential-thinking

What is the latest version of @modelcontextprotocol/server-sequential-thinking on NPM?

As of 2026-10-24, the latest stable version of @modelcontextprotocol/server-sequential-thinking (MCP Sequential Thinking Server by Model Context Protocol) on NPM is v2.0.0, published on 2026-10-19. It has shipped 3 releases in the last 90 days.

Does @modelcontextprotocol/server-sequential-thinking v2.0.0 have breaking changes or MCP schema drift risk?

@modelcontextprotocol/server-sequential-thinking currently carries a MEDIUM schema drift risk rating with a Stability Score of 86/100 (Grade B+). Major v2.0.0 release adds structured outputSchema validation to sequentialthinking tool responses and requires strict boolean nextThoughtNeeded.

How do I safely pin @modelcontextprotocol/server-sequential-thinking in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @modelcontextprotocol/server-sequential-thinking@2.0.0` and monitor sequentialthinking for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for @modelcontextprotocol/server-sequential-thinking

We poll NPM and modelcontextprotocol/servers every 30 minutes. Get an email with the exact diff when @modelcontextprotocol/server-sequential-thinking ships a breaking release beyond v2.0.0.