i0 (marcoripa96/i0) 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.
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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marcoripa96
Source: github_code
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Better Auth: OAuth refresh-token replay via missing client authentication on oidc-provider and mcp plugins
Better Auth: OAuth refresh-token rotation forks the token family on concurrent redemption
@better-auth/oauth-provider's OAuth authorization-code grant allows concurrent redemption when two token requests race the find-then-delete primitive
Better Auth has stored XSS in the auth-server origin via javascript: redirect_uri in oidc-provider and mcp
Better Auth has insecure cryptographic defaults in oidcProvider: alg=none advertised and plain PKCE accepted by default
API_TOKEN_SECRETAUTH_SECRETBETTER_AUTH_SECRETEMBED_BATCHEMBED_DELAYGITHUB_CLIENT_IDGITHUB_CLIENT_SECRETGOOGLE_API_KEYyour-key # optional, for semantic searchSEED_LIMITDATABASE_URLNEXT_PUBLIC_BASE_URLAll four hints declared on every tool
4/4 tools missing one or more hints — get-icon (missing: destructiveHint, openWorldHint); list-collections (missing: destructiveHint, openWorldHint); list-licenses (missing: destructiveHint, openWorldHint), +1 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
3/4 tool handlers declare input schemas (75%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
1 critical, 8 high severity in production deps — better-auth@1.4.18 (critical), better-auth@1.4.18 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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