Alternatives to Crossref

Same category, ordered by trust score.

X
XposedOrNot Breach Intelligence
68Good
Real-time data-breach lookup and analytics for emails and domains from XposedOrNot.
RegistryRemotexposedornot99 stars
N
NativeKeel
61Good
React Native and Expo health check: upgrade blockers, store rules, crash risks, security findings
Registryalicanakyol8.5K/wk
F
fmsg
60Good
Federated messaging with your fmsg hosting provider. Connect with OAuth or an API key.
RegistryRemotemarkmnl1.2K/wk
S
SkillTotal
60Good
Deterministic security scan of MCP servers, agent skills and npm/PyPI packages. Runs locally.
Registrypezhik1.5K/wk
E
Edgar
56Fair
EDGAR MCP — SEC EDGAR public APIs (free, no auth)
RegistryRemotepipeworx-io260/wk
M
mcp-magento-audit
55Fair
MCP server for auditing Magento projects: update compatibility, module quality, dependency security
Registrymichalper