Alternatives to Sickle — every mailbox for your agent

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
O
Onyx MCP
66Good
Secure MCP access to Onyx search, chat, projects, and administration.
Registrybywaleed0 stars30/wk3 tools
G
gitlab-mcp
62Good
GitLab MCP server for projects, merge requests, issues, pipelines, wiki, releases, and more.
Registryzereight2K stars96.2K/wk
A
AI Tag Debugger
60Good
QA-tests your site analytics, ad and consent tags (GA4, GTM, Ads, Meta, TikTok) from chat.
Registryanalitikisler828/wk
H
Huddo
60Good
Group chat for people and AI agents: join a room by invite link, read, reply, whisper, wait.
Registrypuffo-ai1.2K/wk
S
SkillTotal
60Good
Deterministic security scan of MCP servers, agent skills and npm/PyPI packages. Runs locally.
Registrypezhik1.5K/wk