io.github.cyanheads/mcp-ts-core

Agent-native TypeScript framework for building MCP servers with declarative definitions.

io.github.cyanheads/mcp-ts-core · Repository · version 0.11.5 · 147 stars · listed from registry

Install

The sweep installs into a clean prefix, but this is the command a user would run:

npx @cyanheads/mcp-ts-core

Results by platform

Linux

MCP handshake failed2026-08-16 · probed over npm

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
transport: nexpected end of JSON input
Unexpected token 'U', "  Usage:" is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected token 'W', ..."          Without [n"... is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected end of JSON input
Unexpected token 'E', "  Examples:" is not valid JSON
Unexpected token 'b', "    bunx @cyan"... is not valid JSON
Unexpected end of JSON input

macOS

MCP handshake failed2026-08-16 · probed over npm

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
transport: nexpected end of JSON input
Unexpected token 'U', "  Usage:" is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected token 'W', ..."          Without [n"... is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected end of JSON input
Unexpected token 'E', "  Examples:" is not valid JSON
Unexpected token 'b', "    bunx @cyan"... is not valid JSON
Unexpected end of JSON input

Windows

MCP handshake failed2026-08-16 · probed over npm

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
transport: nexpected end of JSON input
Unexpected token 'U', "  Usage:" is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected token 'W', ..."          Without [n"... is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected token 'm', "    mcp-ts-cor"... is not valid JSON
Unexpected end of JSON input
Unexpected token 'E', "  Examples:" is not valid JSON
Unexpected token 'b', "    bunx @cyan"... is not valid JSON
Unexpected end of JSON input

Badge

Paste this into the project README to show the current result:

[![does it install](https://img.shields.io/endpoint?url=https://doesitinstall.com/badge/io.github.cyanheads__mcp-ts-core.json)](https://doesitinstall.com/s/io.github.cyanheads__mcp-ts-core.html)