TypeScript inferred types, completions and type errors for AI coding agents
Connect Runs on your machine
claude mcp add prinfer -e PRINFER_BACKEND=<PRINFER_BACKEND> -e PRINFER_COMPILER=<PRINFER_COMPILER> -- npx -y [email protected]{
"mcpServers": {
"prinfer": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"PRINFER_BACKEND": "<PRINFER_BACKEND>",
"PRINFER_COMPILER": "<PRINFER_COMPILER>"
}
}
}
}{
"mcpServers": {
"prinfer": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"PRINFER_BACKEND": "<PRINFER_BACKEND>",
"PRINFER_COMPILER": "<PRINFER_COMPILER>"
}
}
}
}{
"servers": {
"prinfer": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"PRINFER_BACKEND": "<PRINFER_BACKEND>",
"PRINFER_COMPILER": "<PRINFER_COMPILER>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
PRINFER_BACKENDOptional | Backend for the hover and diagnostics tools. Use typescript6 if the native TypeScript 7 backend fails in your project. |
PRINFER_COMPILEROptional | Which TypeScript compilers to use: prinfer's bundled ones, the project's own (typescript 5.0 to 6.x; typescript 7 or @typescript/native-preview), or auto: the project's when supported, else bundled. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 10 Oct 2026 |
| Last updated | 10 Oct 2026 |
| Registry name | io.github.clockblocker/prinfer |
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