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Debug, test, and monitor Model Context Protocol (MCP) servers. Inspect every tool, resource, and prompt live, trace JSON-RPC calls, build regression test suites, run them in CI/CD, and share sessions with your team — free to start.
👋 Hey Product Hunt!
I built Bubble MCP because debugging Model Context Protocol servers meant a lot of console.log guesswork and manually re-clicking through tools every time something broke.
What it does:
🔍 Inspector — browse every tool, resource, and prompt your MCP server exposes, and call any of them live with a schema-aware JSON editor
📡 Trace — full JSON-RPC request/response logging in real time, with diffing so you can see exactly what changed between two calls
✅ Test Suites — turn what you find into real regression tests: define inputs, expected outputs, and assertions, then run the whole suite in one click
🔁 CI/CD — generate an API key, drop one workflow file into your repo, and your MCP tests run automatically on every push (fails the build on regressions)
👥 Team Collaboration — shared sessions and test suites, so whoever's on call can pick up exactly where a teammate left off — no exporting JSON over Slack
📊 Performance Analytics — p50/p95/p99 latency per tool, with side-by-side session comparison to catch regressions
🔔 Monitoring & Alerts — we reconnect to your server hourly and alert you the moment a tool or schema changes
🗂️ MCP Directory — a searchable public catalog of community MCP servers you can load as a starting point
No install needed — paste your server URL and start inspecting in seconds. Desktop apps also available for Mac and Windows.
It's free to start. Would love your feedback — especially if you're building MCP servers for Claude or other agents. We also run a bug bounty ($50 for accepted bugs) if you want to help us harden it: bubblemcp.com/bugs
Happy to answer any questions in the comments! 🐛
finally a clean way to trace json-rpc calls without wading through logs. caught a stale prompt config in our test server within five minutes of poking around.
finally a tool that makes MCP debugging actually visible, the live JSON-RPC trace helped me catch a malformed response in seconds that i would have chased for hours
About Bubble MCP on Product Hunt
“Debug, test, and ship MCP servers as a team”
Bubble MCP was submitted on Product Hunt and earned 5 upvotes and 3 comments, placing #160 on the daily leaderboard. Debug, test, and monitor Model Context Protocol (MCP) servers. Inspect every tool, resource, and prompt live, trace JSON-RPC calls, build regression test suites, run them in CI/CD, and share sessions with your team — free to start.
Bubble MCP was featured in API (98.4k followers), Developer Tools (515.9k followers) and Artificial Intelligence (473.7k followers) on Product Hunt. Together, these topics include over 194.2k products, making this a competitive space to launch in.
Who hunted Bubble MCP?
Bubble MCP was hunted by Danny Yan. 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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Danny Yan