Scores, compiles & optimizes prompts for any LLM. Zero AI calls inside. Freemium.
Connect Runs on your machine
claude mcp add claude-prompt-optimizer -e PROMPT_OPTIMIZER_PRO=<PROMPT_OPTIMIZER_PRO> -e PROMPT_OPTIMIZER_LOG_LEVEL=<PROMPT_OPTIMIZER_LOG_LEVEL> -- npx -y [email protected]
{
"mcpServers": {
"claude-prompt-optimizer": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"PROMPT_OPTIMIZER_PRO": "<PROMPT_OPTIMIZER_PRO>",
"PROMPT_OPTIMIZER_LOG_LEVEL": "<PROMPT_OPTIMIZER_LOG_LEVEL>"
}
}
}
}
{
"mcpServers": {
"claude-prompt-optimizer": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"PROMPT_OPTIMIZER_PRO": "<PROMPT_OPTIMIZER_PRO>",
"PROMPT_OPTIMIZER_LOG_LEVEL": "<PROMPT_OPTIMIZER_LOG_LEVEL>"
}
}
}
}
{
"servers": {
"claude-prompt-optimizer": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"PROMPT_OPTIMIZER_PRO": "<PROMPT_OPTIMIZER_PRO>",
"PROMPT_OPTIMIZER_LOG_LEVEL": "<PROMPT_OPTIMIZER_LOG_LEVEL>"
}
}
}
}
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 |
|---|---|
PROMPT_OPTIMIZER_PROOptional | Set to 'true' to enable Pro tier via environment variable (alternative to license key) |
PROMPT_OPTIMIZER_LOG_LEVELOptional | Log verbosity level: debug, info, warn, error |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 27 Feb 2026 |
| Last updated | 27 Feb 2026 |
| Registry name | io.github.rishiatlan/claude-prompt-optimizer |
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