Trust score
72/100
MarketNow Registry / Search / @skyphusion/postern-mcp
@skyphusion/postern-mcp
Model Context Protocol server for Postern: read tools over the mailbox API (search/list/get/thread/get_attachment), plus optional send tools (mailbox_send / mailbox_reply, with attachments) behind a s
Search
v1.4.1
by skyphusion
Install risk
Runs registry code
Downloads / week
100
Source
npm-registry
Indexed
2026-09-10
Install
$ npx -y @skyphusion/postern-mcpInstalling via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
Adoption evidence: 100 weekly registry downloads.
How MarketNow scored this
Sentinel Index Heuristics — a security-first estimate from public signals:
- Package age and release activity (stale repositories lose points)
- Verified adoption: registry downloads or GitHub stars, not follower counts
- Typosquat distance against the 150 most-installed MCP packages
- Injection markers scanned in the package description
Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.
What is @skyphusion/postern-mcp?
Model Context Protocol server for Postern: read tools over the mailbox API (search/list/get/thread/get_attachment), plus optional send tools (mailbox_send / mailbox_reply, with attachments) behind a s Indexed by MarketNow with trust 72/100 (Runs registry code).
How do I install it?
Run $ npx -y @skyphusion/postern-mcp Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
What does the trust score mean?
Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. @skyphusion/postern-mcp scores 72/100.