Batcave Detective Basic MCP Server

by bjorn2-sol Your server? Claim it

answering

Batcave Detective Basic is answering right now. Last checked 3 min ago. It exposes 5 tools.

Evidence-bound second-opinion audit of an agent conclusion against caller-supplied evidence.

Uptime history 21 days of history · worst day 0%

21 days agonow

98.9%

Uptime 24h

90 of 91 checks

Tools

read from the server

518 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 4 September 2026. No other catalogue keeps this.

20 Sep 5 tools appeared detective_basic, evidence_judge, json_doctor and 2 more

20 Sep a tool disappeared audit_claims

3 Sep a tool description was rewritten audit_claims

Batcave Detective Basic does not always answer

Over the last week it answered 44.6% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add batcave-detective --transport http https://subsidy-stylized-unaligned.ngrok-free.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "batcave-detective": {
      "url": "https://subsidy-stylized-unaligned.ngrok-free.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.batcave-detective]
url = "https://subsidy-stylized-unaligned.ngrok-free.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "batcave-detective": {
      "url": "https://subsidy-stylized-unaligned.ngrok-free.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "batcave-detective": {
      "url": "https://subsidy-stylized-unaligned.ngrok-free.dev/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

detective

detective_basic

Batcave paid product at /v1/audit-claims. The canonical product contract is published by STORE OpenAPI. Price: 0.02 USD via x402. Calling this MCP tool returns the canonical REST/x402 checkout contract; it does not execute the product or charge the caller yet.

evidence

evidence_judge

Batcave paid product at /v1/review-decision. The canonical product contract is published by STORE OpenAPI. Price: 0.02 USD via x402. Calling this MCP tool returns the canonical REST/x402 checkout contract; it does not execute the product or charge the caller yet.

json

json_doctor

Deterministic CPU-only utility. Repairs a bounded set of common JSON syntax mistakes, returns canonical JSON, and optionally validates a documented JSON Schema subset. Missing fields are reported, never invented. Price: 0.003 USD via x402. Calling this MCP tool returns the canonical REST/x402 checkout contract; it does not execute the product or charge the caller yet.

python

run_python

Execute supplied Python files in a fresh disposable CPU-only container. No outbound network, no GPU, and no host filesystem access beyond the disposable workspace. Returns bounded execution evidence, requested artifacts, and Execution Receipt v1. Price: 0.01 USD via x402. Calling this MCP tool returns the canonical REST/x402 checkout contract; it does not execute the product or charge the caller yet.

scenario

scenario_council

Runs exactly four fixed roles (Operator, Skeptic, Buyer, Adversary) for 1-3 bounded rounds over only the caller-supplied question, context, and evidence. Returns every role position, evidence lineage, structured peer challenges, belief changes, disagreements, falsifiers, deterministic process-integrity results, and one independent Detective Basic audit of the four final conclusions. Does not retrieve outside facts, execute actions, treat peer statements as evidence, or treat majority agreement as truth. Price: 0.25 USD via x402. Calling this MCP tool returns the canonical REST/x402 checkout contract; it does not execute the product or charge the caller yet.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

audit_claims

removed 20 Sep 2026

Endpoints

URL	Transport	State	Latency	Checked
https://subsidy-stylized-unaligned.ngrok-free.dev/mcp	streamable-http	answering	709 ms	3 min ago

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Batcave Detective Basic — questions

Answers built from our own checks of this server.

What can Batcave Detective Basic do?

It exposes 5 tools, read directly from the server on our last check. Among them: detective_basic, evidence_judge, json_doctor, run_python, scenario_council. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Batcave Detective Basic working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 90 of 91 checks got a reply (98.9%), average response time 518 ms. The bar chart above shows every period we have measured.

Did Batcave Detective Basic ever remove tools?

Yes. audit_claims is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

How do I connect Batcave Detective Basic?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Batcave Detective Basic need an API key?

No. Batcave Detective Basic completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Batcave Detective Basic?

It answers our handshake in 518 ms on average, which is faster than 29% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.