Enables AI assistants to manage Fusebase workspaces by providing 46 tools for handling pages, tasks, folders, and organizational administration. It features a two-tier tool system and secure session management using reverse-engineered internal endpoints.
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
ryan-haver
Source: Glama
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
M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
Undici: Malicious WebSocket 64-bit length overflows parser and crashes the client
Undici has Unhandled Exception in WebSocket Client Due to Invalid server_max_window_bits Validation
Undici has Unbounded Memory Consumption in WebSocket permessage-deflate Decompression
FUSEBASE_COOKIECookie via env var — optionally pass in your MCP config for environments where the encrypted store isn't availableFUSEBASE_HOSTyourorg.nimbusweb.me # Your org's Fusebase hostnameFUSEBASE_ORG_IDyour_org_id # Found in Fusebase URL or API responsesFUSEBASE_TOOLSAlways-on: add =all to your .envFUSEBASE_WORKSPACE_IDFUSEBASE_WS_HOSTDependencies
14 dependencies, 1 flagged: playwright
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
94/94 tools missing one or more hints — refresh_auth (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_workspaces (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_pages (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +91 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.
Tool inputs are validated
93/94 tool handlers declare input schemas (99%)
Declare an inputSchema with zod/joi/yup on every tool definition.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Shell command execution
2 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
No arbitrary install scripts
Has postinstall/preinstall script — runs arbitrary code on npm install
Remove postinstall/preinstall hooks unless they’re essential.
Production dependencies are patched
0 critical, 5 high severity in production deps — @modelcontextprotocol/sdk@1.0.0 (high), @modelcontextprotocol/sdk@1.0.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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/ryan-haver-fusebase-mcp-1va08r)?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