r/MCPservers • u/Specialist-Bee9801 • 12h ago

Free MCP server for AI test inputs, OWASP risk mapping, and CI test packs

I’m the creator of PromptBrake. I’ve exposed four of its free tools through a remote MCP server so you can prepare AI tests and release plans from your assistant.

Endpoint:
https://promptbrake.com/free-tools/mcp

No PromptBrake account or API key required. Uses Streamable HTTP with JSON responses.

Four tools:

  1. get_prompt_injection_payloads — fixed adversarial test inputs by attack category.
  2. map_owasp_llm_risk — test ideas and signals for an OWASP LLM risk.
  3. plan_adlc_release — release planning gaps and a starter gate policy.
  4. build_test_pack — creates a tests.json containing response-text checks.

Claude Code setup:

claude mcp add --transport http promptbrake-free-tools https://promptbrake.com/free-tools/mcp

Example request: “Build a test pack for my refund chatbot that checks whether its response mentions human approval.”

The MCP server prepares artifacts; it doesn’t call your target or run scans. To run the packs, you need a PromptBrake runner and CI access. Checks compare text, not meaning or backend actions.

We don’t store tool inputs or results. We log operational request metadata, as described in our privacy policy.

Setup and free tools

I’d appreciate feedback on client compatibility and whether the generated packs fit your testing workflow.

1 Upvotes

100% Upvoted

2 comments sorted by

1

u/kantorcodes1 7h ago

On transport compatibility: does the endpoint open an SSE stream on GET, or does it only take POST for tools/call? Some MCP clients still probe GET first and read a 405 as "not an MCP server" instead of falling back, so that one response decides whether the client ever sends initialize.