AAIAgentAlts

MCP reference servers

The MCP steering group's reference implementations, good for learning and testing.

Everything (reference server)

Developer tools

Test server that exercises every MCP feature

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

Fetch (reference server)

Browser and web automation

Fetches a web page and turns it into Markdown for the model

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

Filesystem (reference server)

File systems

Read, write and search files inside folders you allow

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

Git (reference server)

Developer tools

Lets an agent read and work with a local Git repository

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

Memory (reference server)

AI and memory

Simple knowledge-graph memory that persists between chats

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

Sequential Thinking (reference server)

AI and memory

A scratchpad tool for step-by-step reasoning

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

Time (reference server)

Productivity

Current time and time-zone conversion

Stars
★ 91.4k
Licence
Apache-2.0 / MIT (MCP licence transition)
Updated
  • MCP server
  • Official

More collections

MCP servers99 tools

Every MCP server listed: connectors that give AI agents tools for a service or system.

Agent skills38 tools

SKILL.md skills, skill collections and prompt or workflow packs that teach agents how to do a job.

Agent tooling18 tools

Frameworks, SDKs and tools for building agents and running MCP servers.

Official MCP servers79 tools

Servers published by the company behind the service, or by the MCP project itself.

Hosted (remote) MCP servers32 tools

Servers you connect to over HTTP, usually with OAuth sign-in, with nothing to install.

Anthropic's skills17 tools

Skills from Anthropic's public anthropics/skills repository.