Is @modelcontextprotocol/server-legacy safe to use?

@modelcontextprotocol/server-legacy has no known vulnerabilities on the latest version (2.0.0). DepScope rates its health at 48/100 (high risk).

What is the latest version of @modelcontextprotocol/server-legacy?

The latest version of @modelcontextprotocol/server-legacy is 2.0.0, released 2026-07-27.

Does @modelcontextprotocol/server-legacy have known vulnerabilities?

No known vulnerabilities on the latest version of @modelcontextprotocol/server-legacy.

Is @modelcontextprotocol/server-legacy deprecated?

Yes, @modelcontextprotocol/server-legacy is deprecated: This package is a frozen copy of v1's SSE transport and OAuth Authorization Server helpers for migration purposes only. Use StreamableHTTP from @modelcontextprotocol/server and a dedicated OAuth server in production. Will not receive new features. Consider using ? instead.

What are alternatives to @modelcontextprotocol/server-legacy?

Popular alternatives to @modelcontextprotocol/server-legacy in npm include: ?, semver, debug, minimatch.

What license does @modelcontextprotocol/server-legacy use?

@modelcontextprotocol/server-legacy is licensed under MIT.

@modelcontextprotocol/server-legacy

npmv2.0.0deprecated

Frozen v1 SSE transport and OAuth Authorization Server helpers for the Model Context Protocol TypeScript SDK. Deprecated; use StreamableHTTP and a dedicated OAuth server in production.

License MITpermissive8 versions6 maintainers7 deps217,144 weekly dl

modelcontextprotocol/typescript-sdk

/ 100

Health

find alternative

@modelcontextprotocol/server-legacy is deprecated — find an alternative

Moderate health score (48/100) — verify manually
Package is deprecated

Health breakdown0 – 100

20/25

maintenance

14/20

popularity

25/25

security

6/15

maturity

13/15

community

Vulnerabilities

none known

Bundle & TypeScript

🌟

TypeScript

10/10typed

bundled

Health History

Dependency Tree

License Audit

Dependencies (7)

zod cors raw-body content-type pkce-challenge express-rate-limit @modelcontextprotocol/core

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/npm/@modelcontextprotocol/server-legacy