MCP reference servers hit v1.0.0 (filesystem, memory, fetch, git, time, sequential-thinking)
mcpThe official Model Context Protocol reference servers monorepo cuts its first stable 1.0.0 release. The TypeScript servers @modelcontextprotocol/server-{everything,filesystem,memory,sequential-thinking} ship at 1.0.0 on npm; the Python servers mcp-server-{fetch,git,time} ship at 2026.10.10 on PyPI. Includes major filesystem roots/Unicode/UNC fixes, memory graph concurrency and validation hardening, and Streamable HTTP/SSE session fixes aligned with MCP SDK 1.x.
An agent can now install the stable 1.0.0 reference MCP servers (filesystem, memory, sequential-thinking, everything, fetch, git, time) with hardened session handling, roots refresh, and JSON Schema 2020-12 tool schemas.
First 1.0 stable cut of the official reference MCP servers monorepo, aligned with MCP SDK 1.x. Significant hardening of filesystem (roots handling, UNC paths, Unicode, in-place overwrite, edit_file preserves line endings) and memory (concurrency, validation, dangling relations) servers, plus Streamable HTTP/SSE fixes in server-everything.
npm i @modelcontextprotocol/server-filesystem@1.0.0# Install and run the reference filesystem MCP server
npm i -g @modelcontextprotocol/server-filesystem@1.0.0
npx @modelcontextprotocol/server-filesystem /path/to/allowed/dir
# Or the memory knowledge-graph server
npm i -g @modelcontextprotocol/server-memory@1.0.0
MEMORY_FILE_PATH=~/memory.jsonl npx @modelcontextprotocol/server-memory
# Python-based servers
pip install mcp-server-fetch==2026.10.10 mcp-server-git==2026.10.10 mcp-server-time==2026.10.10
python -m mcp_server_fetch{
"tools": [
"filesystem",
"memory",
"sequential-thinking",
"everything",
"fetch",
"git",
"time"
],
"transport": "stdio",
"server_name": "modelcontextprotocol-reference-servers"
}