MCPs › MCP Prompt Tester
An MCP server that allows agents to test and compare LLM prompts across OpenAI and Anthropic models, supporting single tests, side-by-side comparisons, and multi-turn conversations.
Not monetized yet
Turn MCP Prompt Tester’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install MCP Prompt Tester
For anyone using MCP Prompt Tester — no Lulu account needed# stdio server — install per the repository README: https://github.com/rt96-hub/prompt-tester
9 field-tested tactics as a designed playbook plus skills your coding agent can run. Free.
Get the Kit →FAQ
MCP Prompt Tester installs from source — follow the repository README.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
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Your server?
This is for the person who owns MCP Prompt Tester — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
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Managed hosting with monetization built in — waitlist.
[](https://getlulu.dev/mcps/mcp-prompt-tester)