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Slack MCP Server

R2· OAuth, once

Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth.

v5.1.0 · active · repository · website · descriptor JSON · versions

An agent can connect after a one-time OAuth consent by a human.Remote endpoint behind OAuth 2. Tokens stay with the agent; the registry only exposes the authorization metadata.
Quality100strong
Trust96of 100
Uptime, 30 days92%
Latency p50161 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "slack-mcp-server": {
      "type": "http",
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}
claude mcp add --transport http slack-mcp-server https://mcp.revasserlabs.com/oauth/mcp
[mcp_servers.slack-mcp-server]
url = "https://mcp.revasserlabs.com/oauth/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "slack-mcp-server": {
      "type": "remote",
      "url": "https://mcp.revasserlabs.com/oauth/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "slack-mcp-server": {
      "type": "http",
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=slack-mcp-server&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLnJldmFzc2VybGFicy5jb20vb2F1dGgvbWNwIn0%3D"
}
{
  "servers": {
    "slack-mcp-server": {
      "type": "http",
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}
{
  "mcpServers": {
    "slack-mcp-server": {
      "httpUrl": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}
extensions:
  "slack-mcp-server":
    enabled: true
    name: "slack-mcp-server"
    type: streamable_http
    uri: "https://mcp.revasserlabs.com/oauth/mcp"
    timeout: 300

Quality 100 / 100strong

protocoln/a · weight 25
  • n/a
    protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)
authorization100 · weight 15
  • pass
    auth.prmProtected Resource Metadata (RFC 9728) published
  • pass
    auth.as_metadataauthorization server metadata reachable
  • pass
    auth.cimdClient ID Metadata Documents supported
  • n/a
    auth.secret_in_urlno templated URL
tool hygienen/a · weight 30
  • n/a
    tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool list unknown
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledeps.dev does not know @jtalk22/[email protected]

Tool list unknown · checked 2026-10-20 10:35 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance90
liveness97
freshness100
hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-92% +updated-13d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@jtalk22/[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mcp.revasserlabs.com/oauth/mcp streamable-httpoauth2 AS: https://mcp.revasserlabs.comyes92%161 ms–2026-10-20
packageregistryversionruntimesecrets
@jtalk22/slack-mcpnpm5.1.0–SLACK_TOKEN, SLACK_COOKIE

Tools (0)

No tools observed. Tools appear once a credential-free probe can list them.

Schemas: list_tools.

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More from io.github.jtalk22

Official server.json
{
  "name": "io.github.jtalk22/slack-mcp-server",
  "icons": [
    {
      "src": "https://raw.githubusercontent.com/jtalk22/slack-mcp-server/main/docs/assets/icon-512.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "Slack MCP Server",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.revasserlabs.com/oauth/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "5.1.0",
  "packages": [
    {
      "version": "5.1.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@jtalk22/slack-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "SLACK_TOKEN",
          "format": "string",
          "isSecret": true,
          "description": "Slack xoxc- token from browser session"
        },
        {
          "name": "SLACK_COOKIE",
          "format": "string",
          "isSecret": true,
          "description": "Slack xoxd- cookie from browser session"
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/jtalk22/slack-mcp-server",
    "source": "github"
  },
  "websiteUrl": "https://mcp.revasserlabs.com",
  "description": "Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth."
}