Install AI tools like browser extensions, without deploying hardcoded servers.
xrMCP is a JSON manifest format and runtime protocol that lets you describe any API as a real, named MCP tool. Instead of shipping a server, you share a .xrmcp.json file. Any xrMCP-compatible runtime imports it and exposes it as a proper MCP tool — with the right name, schema, and behaviour.
Today, sharing an MCP integration means sharing a server — code to deploy, infrastructure to run, credentials to manage. There is no standard way to share just a tool. xrMCP fills that gap: describe your tool once in JSON, install it anywhere.
| xrmcp/xrmcp | Specification and schema |
| xrmcp/go-sdk | Go SDK and runtime |
| xrmcp/python-sdk | Python SDK |
| xrmcp/cli | CLI — xrmcp server start, xrmcp tool install |
| xrmcp/registry | Public tool registry (coming soon) |