Preflight for ChatGPT
io.github.evanfollis/preflight
Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.
client:ChatGPT
transport:streamable-http
tools:1
Install Preflight in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://skillfoundry.synaplex.ai/products/preflight/mcp/
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs