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Remote MCP Server Tester
Inspect any remote MCP server — quality, cost, and security
MCP Server Tester is an open-source, browser-based tool for inspecting remote MCP servers before you wire them into an agent. Paste a URL to list tools, resources, and prompts, plus: - LLM Readiness Score (A–F) for tool-schema quality - Tool-poisoning & rug-pull detection (heuristic) - Per-request token cost estimates - OAuth / auth inspector - Compare mode for two servers - Exportable Markdown / JSON reports with secret redaction Runs locally or as a hosted demo. MIT-licensed, no signup.
I build and debug MCP servers, and I kept hitting the same problem: I'd wire a remote server into an agent and only afterwards find out its tool schemas were vague, its token cost was huge, or a description had something odd buried in it.
So I built this for myself — a way to *evaluate* a server, not just browse it. What it does:
📊 Readiness & Quality Score: Evaluates schemas and efficiency before you integrate.
🛡️ Heuristic Security Checks: Detects potential tool-poisoning and rug-pull attempts.
📄 Exportable Reports: Share server health checks with your team.
It's honest about its limits: the security checks are heuristic and pattern-based — they catch known tricks, but a passing score doesn't mean a server is safe. I've tried to document that clearly rather than oversell it.
I'd genuinely love feedback — especially on the readiness-score dimensions and the poisoning heuristics, since those involve the most judgment calls.
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About Remote MCP Server Tester on Product Hunt
“Inspect any remote MCP server — quality, cost, and security”
Remote MCP Server Tester was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #54 on the daily leaderboard. MCP Server Tester is an open-source, browser-based tool for inspecting remote MCP servers before you wire them into an agent. Paste a URL to list tools, resources, and prompts, plus: - LLM Readiness Score (A–F) for tool-schema quality - Tool-poisoning & rug-pull detection (heuristic) - Per-request token cost estimates - OAuth / auth inspector - Compare mode for two servers - Exportable Markdown / JSON reports with secret redaction Runs locally or as a hosted demo. MIT-licensed, no signup.
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Who hunted Remote MCP Server Tester?
Remote MCP Server Tester was hunted by ytkoka. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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ytkoka
I build and debug MCP servers, and I kept hitting the same problem: I'd wire a remote server into an agent and only afterwards find out its tool schemas were
vague, its token cost was huge, or a description had something odd buried in it.
So I built this for myself — a way to *evaluate* a server, not just browse it.
What it does:
📊 Readiness & Quality Score: Evaluates schemas and efficiency before you integrate.
🛡️ Heuristic Security Checks: Detects potential tool-poisoning and rug-pull attempts.
🔑 OAuth Inspector: Validates authentication setups seamlessly.
📄 Exportable Reports: Share server health checks with your team.
It's honest about its limits: the security checks are heuristic and pattern-based — they catch known tricks, but a passing score doesn't mean a server is safe. I've tried to document that clearly rather than oversell it.
I'd genuinely love feedback — especially on the readiness-score dimensions and the poisoning heuristics, since those involve the most judgment calls.
🔗 Live demo (no signup): https://mcp-tester-gsei.onrender.com/
💻 Source (MIT): https://github.com/ytkoka/mcp-tester