MCP server that connects a self-hosted Wallos subscription tracker to AI assistants, enabling management of subscriptions, categories, payment methods, and more via the Wallos API. Runs on Cloudflare Workers with OAuth 2.1 authentication.
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
Monitored 4 days · every push re-verified
Who stands behind it
mkpo.li (@mkpoli) · Ownership Verified
Source: Glama
Install from
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
Hono: Algorithmic Complexity DoS in Language Middleware
Hono: Proxy Helper does not remove response headers listed in the `Connection` header
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
33/33 tools missing one or more hints — whoami (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_subscriptions (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_subscription (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +30 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
30/33 tool handlers declare input schemas (91%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool test coverage
Only 4/33 tools referenced in tests (12%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.10.2 (high), @modelcontextprotocol/sdk@1.10.2 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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