FREE & OPEN SOURCE · MIT LICENSE

One MCP config.
Every agent.

Your tools, shared across Claude Code, Codex, Cursor and beyond. Configure once. Load less context. Decide exactly what each agent can do.

Get mcpmu ↓Read the docs ↗

YOUR AGENTS

Claude CodeCodexCursorAny MCP client

mcpμ

ONE SHARED CONFIG

NamespacesCompressionPermissions

DocumentationFilesystemGitHubYour servers

LOCAL STDIO + REMOTE HTTP

Runs on your machineTerminal + web UINo subscription

01 / SHAREStop maintaining the same setup everywhere.

Configure your servers.
Connect your agents.

Add a server to mcpmu once. Point each agent at the gateway and share the same server definitions, authentication and tool rules.

Keep work, personal and project tools in separate namespaces. Each agent gets the right view of the same configuration.

Explore namespaces ↗

ONE SETUP. MULTIPLE CLIENTS.μ

# Add your server once
mcpmu add context7 -- npx -y @upstash/context7-mcp

# Connect Claude Code
claude mcp add mcpmu -- mcpmu serve --stdio

# Connect Codex to the same setup
codex mcp add mcpmu -- mcpmu serve --stdio

Use stdio locally, or a persistent Streamable HTTP endpoint.

02 / COMPRESSMore room for the work that matters.

Your context is precious.
Spend it on the task.

A large tool catalog can fill your context with schemas before an agent starts working. mcpmu replaces that upfront payload with three wrapper tools and a compact catalog.

Your agent discovers what’s available, fetches full schemas when needed, and calls the underlying tools. You choose how much detail the catalog includes.

FULL TOOL SURFACE

100schemas in context

Every tool. Every schema. Up front.

WITH MCPMU COMPRESSIONlist_toolsget_tool_schemainvoke_tool

3schemas in context

Compact catalog. Full schemas on demand.

lowFull descriptions

medium START HEREFirst sentence

highNames + arguments

maxTool names only

mcpmu namespace set-compression work medium

Opt-in, per namespace. Example counts are from a setup with 8 servers and 100 tools. Actual context savings depend on your tool catalog and compression level. How compression works ↗

03 / CONTROLA shared config doesn’t mean shared access.

The right tools.
For the right agent.

Give a research agent read access. Allow a development agent to make changes. Block a dangerous tool across every namespace.

mcpmu enforces permissions at the gateway, including calls through compression. Denied tools stay out of discovery and their calls are blocked before dispatch.

Understand tool permissions ↗

EXAMPLE ACCESS POLICY