xupersplit (kanylbullen/xupersplit) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
Runs an entire shared-expense split from an assistant: create one, add what each person paid (equally, by weighted shares or exact amounts), record paybacks, and read back who owes whom as the fewest transfers. Eleven tools covering the whole lifecycle, with no account and no API key — people are referred to by name and amounts are plain decimals, so an agent never handles uuids or cents.
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.
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kanylbullen
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale
Next.js: Server-Side Request Forgery in Server Actions on custom servers
Next.js: Denial of Service in App Router using Server Actions
Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname
Next.js: Cache confusion of response bodies for requests with bodies containing invalid UTF-8 byte sequences
FEEDBACK_EMAIL_TONEYNAR_API_KEYPLAYWRIGHT_BASE_URLQUICKAUTH_DOMAINRESEND_API_KEYSUPABASE_AUTH_URLSUPABASE_INTERNAL_URLSUPABASE_LOCAL_GATEWAYSUPABASE_REST_URLNEXT_PUBLIC_APP_ORIGINNEXT_PUBLIC_REOWN_PROJECT_IDNEXT_PUBLIC_SELFHOSTNEXT_PUBLIC_SUPABASE_ANON_KEYNEXT_PUBLIC_SUPABASE_URLSUPABASE_SERVICE_ROLE_KEYDependencies
30 dependencies, 1 flagged: @playwright/test
All four hints declared on every tool
11/11 tools missing one or more hints — create_split (missing: idempotentHint, openWorldHint); get_split (missing: destructiveHint, idempotentHint, openWorldHint); add_expense (missing: idempotentHint, openWorldHint), +8 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 test coverage
4/11 tools referenced in tests (36%)
Write tests that reference each tool by name so every tool has at least one test.
Secrets not logged
4 secret values sent to console.log
Redact or omit secret values from log output.
Production dependencies are patched
0 critical, 4 high severity in production deps — next@16.2.7 (high), next@16.2.7 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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