modelcontextprotocol

modelcontextprotocol/servers

Model Context Protocol Servers

Stars: 90.5k
Forks: 11.7k
Open beginner issues: 0
Indexed issues: 235
Avg merge: 2d 2h
Merged PRs (30d): 5

Dominant language: TypeScript
License: No license data
Last GitHub push: Sep 3, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

235 open issues indexed

filesystem: ~1MB JSON-RPC line on stdio causes crash or zombie state Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

modelcontextprotocol/servers#4207 · 2 comments · Opened May 19, 2026
filesystem: malformed JSON-RPC message on stdio causes crash or zombie state Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

modelcontextprotocol/servers#4206 · 2 comments · Opened May 19, 2026
mcp-server-fetch hard-codes use_readability=True which requires Node.js (undeclared); fails silently when Node is unavailable or misconfigured Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

modelcontextprotocol/servers#4199 · 1 comment · Opened May 19, 2026
filesystem: tools/list succeeds without initialize handshake (MCP lifecycle bypass) Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

modelcontextprotocol/servers#4195 · 2 comments · Opened May 18, 2026
Community registry submission guidance for embercore Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

modelcontextprotocol/servers#4171 · Opened May 15, 2026
filesystem: recursive search can hang on macOS CloudStorage / lazy provider paths Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

modelcontextprotocol/servers#4162 · 15 comments · Opened May 14, 2026
MCP servers timeout on initialize with Claude Desktop 1.7196.0.0 (protocol 2025-11-25) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

modelcontextprotocol/servers#4153 · Opened May 13, 2026
[filesystem] write_file silently returns success but never writes to disk on Windows Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 56/100

modelcontextprotocol/servers#4138 · 3 comments · Opened May 11, 2026
[Gmail MCP] Add get_attachment tool to download message attachments Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

modelcontextprotocol/servers#4122 · 5 comments · 10 reactions · Opened May 7, 2026
puppeteer: update old MCP SDK and add browser-automation guardrails by default Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/servers#4118 · 10 comments · Opened May 6, 2026
memory: safer persistence defaults, atomic writes, quotas, redaction, and destructive-operation guardrails Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/servers#4117 · 20 comments · 1 reaction · Opened May 6, 2026
Issues with streamable http everying example: Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 76/100

modelcontextprotocol/servers#4087 · Opened Apr 30, 2026
"Invalid prompt: your prompt was flagged as potentially violating our usage policy" after GPT-5.5 uses Sequential Thinking Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

modelcontextprotocol/servers#4031 · 1 comment · 2 reactions · Opened Apr 23, 2026
Filesystem MCP writes hang when launched via `npx -y`; reliability improves with pinned global install Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

modelcontextprotocol/servers#4026 · 2 comments · Opened Apr 23, 2026
server-everything: get-env tool returns full process.env without any filtering Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

modelcontextprotocol/servers#3986 · 1 reaction · Opened Apr 19, 2026
everything: get-resource-reference prompt resourceType arg missing description (blocks automated invocation) Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

modelcontextprotocol/servers#3985 · Opened Apr 19, 2026
filesystem: 18 schema properties missing description fields, breaking automated callers Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

modelcontextprotocol/servers#3984 · Opened Apr 19, 2026
Add lightweight read modes Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

modelcontextprotocol/servers#3953 · 1 comment · Opened Apr 15, 2026
mcp-server-fetch drops SSR content from streaming/progressive rendering sites Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

modelcontextprotocol/servers#3878 · 9 comments · Opened Apr 8, 2026
Release script skips version bump for packages with only lockfile changes Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

modelcontextprotocol/servers#3870 · 1 comment · Opened Apr 8, 2026
Please cut a new release of @modelcontextprotocol/server-sequential-thinking — coercion fix from #3533 not on npm Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

modelcontextprotocol/servers#3856 · 2 comments · 1 reaction · Opened Apr 7, 2026
The npmjs registry has the version only has @modelcontextprotocol/server-filesystem@2026.1.14 when the latest tag in this repo is 2026.1.26 Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

modelcontextprotocol/servers#3799 · Opened Apr 2, 2026
Security: filesystem server path parameters lack traversal constraints enabling prompt injection → arbitrary file read/write Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

modelcontextprotocol/servers#3752 · 5 comments · 3 reactions · Opened Mar 30, 2026
Security Hardening Recommendations for Fetch Server (SSRF Prevention) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

modelcontextprotocol/servers#3741 · 1 comment · 1 reaction · Opened Mar 28, 2026
Schema quality: missing property descriptions across official MCP servers Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

modelcontextprotocol/servers#3669 · 4 comments · Opened Mar 22, 2026
Docker Image 1.0.2 Breaks Linux Users with Letter at Start of Path Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 56/100

modelcontextprotocol/servers#3628 · 3 comments · Opened Mar 18, 2026
Enforce current roots on every git tool call Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

modelcontextprotocol/servers#3613 · Opened Mar 17, 2026
Return distinct filesystem error codes for missing roots and out-of-scope paths Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

modelcontextprotocol/servers#3606 · 2 comments · Opened Mar 16, 2026
server-filesystem: MCP roots protocol overwrites CLI-provided allowed directories Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

modelcontextprotocol/servers#3602 · 2 comments · 1 reaction · Opened Mar 16, 2026
filesystem: lock structured-content response shape for text tools Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

modelcontextprotocol/servers#3587 · 1 comment · Opened Mar 15, 2026
Add tool annotations to server-fetch (1 tool, 0 annotated) Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

modelcontextprotocol/servers#3572 · 1 comment · Opened Mar 14, 2026
Make filesystem directory-tree output ordering deterministic Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

modelcontextprotocol/servers#3539 · Opened Mar 12, 2026
Security Audit: Unconstrained string parameters across all official servers Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

modelcontextprotocol/servers#3537 · 16 comments · 1 reaction · Opened Mar 12, 2026
UNC/network share paths (\\server\share\subdir) fail access check despite being under allowed directory Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 62/100

modelcontextprotocol/servers#3527 · 1 comment · Opened Mar 11, 2026
Filesystem: fail closed on symlink traversal outside configured roots Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

modelcontextprotocol/servers#3525 · Opened Mar 11, 2026
[Bug]: Filesystem server glob pattern matching inconsistent across platforms Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

modelcontextprotocol/servers#3517 · Opened Mar 11, 2026
Add machine-readable startup errors for filesystem directory validation Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

modelcontextprotocol/servers#3512 · 1 comment · Opened Mar 10, 2026
Filesystem Desktop Extension: path validation fails on Windows with spaces and German umlauts in subdirectory names Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

modelcontextprotocol/servers#3508 · 4 comments · Opened Mar 10, 2026
Docs: npx-based server configs fail on Windows without cmd /c wrapper Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

modelcontextprotocol/servers#3460 · 4 comments · Opened Mar 3, 2026
Filesystem MCP follow symlinks option Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/servers#3457 · 1 comment · Opened Mar 3, 2026
Add strict ACL startup mode for reference servers Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

modelcontextprotocol/servers#3439 · 1 reaction · Opened Mar 1, 2026
fix(filesystem): harden atomicReplaceFile fallback from PR #3296 Open

bug

modelcontextprotocol/servers#3430 · 1 assignee · Opened Feb 28, 2026
fix(filesystem): improve search_files description and performance Open

modelcontextprotocol/servers#3419 · 1 comment · 1 assignee · Opened Feb 27, 2026
Claude Desktop Filesystem extension ships outdated dist with root path normalization bug Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

modelcontextprotocol/servers#3417 · 1 comment · Opened Feb 27, 2026
Filesystem MCP server crashes silently on paths containing ~ (tilde) character Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

modelcontextprotocol/servers#3412 · Opened Feb 26, 2026
Add deterministic capability exposure ordering in initialization responses Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

modelcontextprotocol/servers#3410 · Opened Feb 26, 2026
Use collision-resistant request IDs in responses and logs Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

modelcontextprotocol/servers#3404 · Opened Feb 25, 2026
Add missing idempotentHint and openWorldHint to server-filesystem Open

Difficulty 3/5 1-2 days Newbie friendliness 66/100

modelcontextprotocol/servers#3402 · 3 comments · Opened Feb 25, 2026
Add tool annotations to server-everything (13 tools, 0 annotated) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

modelcontextprotocol/servers#3401 · 4 comments · Opened Feb 25, 2026
Add tool annotations to server-github (26 tools, 0 annotated) Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

modelcontextprotocol/servers#3399 · 2 comments · Opened Feb 25, 2026

A short digest of beginner-friendly GitHub issues.