langfuse
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
neubirdai
Source: github_code
Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →
Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Auth.js: Email normalizer validates the address before Unicode normalization, allowing a homoglyph @ bypass
nanoid: non-secure generators can loop indefinitely with negative size
nanoid: custom generators can loop indefinitely when size is zero
nanoid: Integer Overflow or Wraparound
Auth.js: getToken() throws an uncaught exception on malformed Bearer authorization headers
Tool annotations
66/73 tools have annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
73/73 tools missing one or more hints — createAnnotationQueue (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); createAnnotationQueueAssignment (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); createAnnotationQueueItem (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +70 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Production dependencies are patched
1 critical, 4 high severity in production deps — next-auth@4.24.14 (critical), nanoid@3.3.11 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dependency freshness
7/139 production deps abandoned (no release in 2+ years): d3-selection@2022-06-14 (4.2y), d3-zoom@2022-06-14 (4.2y), fastest-levenshtein@2022-08-02 (4.1y)
Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.
[](https://m8ven.ai/mcp/neubirdai/langfuse)?variant=verified from the URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check