@mcpjam/sdk

Mcpjam SDK by Mcpjam

MCP server unit testing, end to end (e2e) testing, and server evals

Live Registry Versionv10.0.0Previous: v9.3.1Published 2026-10-20

Stability Grade

B (78/100)

90-Day Velocity

56 releases

High release cadence

Dependencies

24 direct

NPM manifest

License

MIT

Verified on NPM

Recommended Exact Pin: npx -y @mcpjam/sdk@10.0.0

NPM Registry ->GitHub Repo ->

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

Mcpjam SDK (@mcpjam/sdk) is currently at v10.0.0 on NPM (published 2026-10-20), with a 90-day stability score of 78/100 (B) and MEDIUM schema drift risk across 56 releases in the past 90 days. recent release v10.0.0 (up from v9.3.1) updates MCP DevTool / Inspector tool schemas and transport handling (56 releases in last 90d). Pin exact version v10.0.0 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @mcpjam/sdk@10.0.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

recent release v10.0.0 (up from v9.3.1) updates MCP DevTool / Inspector tool schemas and transport handling (56 releases in last 90d). Pin exact version v10.0.0 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

tools/listtools/callsdk

Before (Deprecated / Unpinned Pattern)

"mcpjam-sdk": {
  "command": "npx",
  "args": ["-y", "@mcpjam/sdk@latest"]
}

After (Verified v10.0.0 Pattern)

"mcpjam-sdk": {
  "command": "npx",
  "args": ["-y", "@mcpjam/sdk@10.0.0"]
}

Frequently Asked Questions: @mcpjam/sdk

What is the latest version of @mcpjam/sdk on NPM?

As of 2026-10-24, the latest stable version of @mcpjam/sdk (Mcpjam SDK by Mcpjam) on NPM is v10.0.0, published on 2026-10-20. It has shipped 56 releases in the last 90 days.

Does @mcpjam/sdk v10.0.0 have breaking changes or MCP schema drift risk?

@mcpjam/sdk currently carries a MEDIUM schema drift risk rating with a Stability Score of 78/100 (Grade B). recent release v10.0.0 (up from v9.3.1) updates MCP DevTool / Inspector tool schemas and transport handling (56 releases in last 90d). Pin exact version v10.0.0 in .mcp.json to avoid silent parameter drift.

How do I safely pin @mcpjam/sdk in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @mcpjam/sdk@10.0.0` and monitor tools/list, tools/call, sdk for parameter or schema changes.

30-Min Registry & Schema Poller