@sigmacomputing/slack-mcp-server

MCPattested
v0.1.1Sigma ComputingMITUpdated 5mo agonpmGitHub

MCP server for interacting with Slack

> Fork of zencoderai/slack-mcp-server — customized for read-only access to the Sigma Slack workspace. This is a Sigma-specific fork of the Zencoder Slack MCP server. It is tailored for reading and searching content in the Sigma Slack workspace from Cursor IDE, with no write access (no posting messages or replying to threads). The fork adds tools for file downloads, full-text search, pins,…

Attested build
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6kDownloads/wk
5mo agoLast update
Package
AuthorSigma Computing
LicenseMIT
Version0.1.1
Sourcenpm
npm@sigmacomputing/slack-mcp-server
GitHubsigmacomputing/slack-mcp-server
Trust Status
A
85/100Trusted
✓Listed in Forge index+10/10
✓Identity verified · attested build+20/20
—Ed25519 publish signature+0/5
→ Included automatically when the publisher runs `forge publish`
—Domain verification+0/5
→ Publisher: host /.well-known/forge.json on the package homepage with { "publisher": "<github-login>" }
✓npm Trusted Publishing (Sigstore)+5/5
—npm maintainer match+0/5
→ Publisher: add the verified GitHub login to the npm package's maintainers (npm owner add <login>)
✓CVE scan · clean+30/30
✓Static analysis · clean+20/20
Paste into Claude Code, Cursor, or any AI assistant to fix all gaps
StatusIdentity verified
PublisherUnverified
SignatureUnsigned
Domain—
Provenance✓ Sigstore-verified · f1a72eb
Dependencies60 resolved · 1 with advisories
Tool surface17 tools · 1 privileged
Security scan⚠ Warnings (3)v0.1.1 · 2d ago
HIGH@modelcontextprotocol/sdk@1.15.1@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuseHIGH@modelcontextprotocol/sdk@1.15.1Anthropic's MCP TypeScript SDK has a ReDoS vulnerabilityHIGH@modelcontextprotocol/sdk@1.15.1Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
EvalsNone
IndexedMay 24, 2026

Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts — it cannot prove the absence of malicious code.

About

> Fork of zencoderai/slack-mcp-server — customized for read-only access to the Sigma Slack workspace. This is a Sigma-specific fork of the Zencoder Slack MCP server. It is tailored for reading and searching content in the Sigma Slack workspace from Cursor IDE, with no write access (no posting messages or replying to threads). The fork adds tools for file downloads, full-text search, pins, bookmarks, and reactions that the upstream project does not provide. This project includes code originally