slack-waterline vs Postman MCP Server
slack-waterline is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑15.
slack-waterline is a plugin bundle for AI coding tools published by Chan Meng. No marketplace we read lists it any more. Postman MCP Server is an MCP server published by postman.com. Marketplaces we read that list it: 3 (Official MCP Registry, Docker MCP Catalog, npm registry (MCP servers)). As of our marketplace pass on 2026-11-11. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |   Postman MCP Server | |
|---|---|---|
| Community marketplace chanmeng666/slack-waterline-skill | Removed on 2026-10-15 Version: 0.1.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 2.15.0 Downloads/month (npm): 46 496 Downloads/week (npm): 7 759 Forks (GitHub): 86 Stars (GitHub): 328 Not marked · First seen |
| Docker MCP Catalog | Not listed | Listed Version: sha256:73f715030cbe Forks (GitHub): 86 Pulls (Docker Hub): 47 492 Stars (Docker Hub): 6 Stars (GitHub): 328 Not marked · First seen |
| npm registry (MCP servers) | Not listed | Listed Version: 2.15.0 Downloads/month (npm): 46 496 Downloads/week (npm): 7 759 Forks (GitHub): 86 Stars (GitHub): 328 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | slack-waterlineno longer listed · | Postman MCP Server |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 3 |
| Stars (GitHub) (differs) | 0 | 328 |
| Pulls (Docker Hub) (differs) | No figure on Docker Hub | 47 492 |
| Forks (GitHub) (differs) | 0 | 86 |
| Last release (differs) | Not published | 2026-10-30 |
| Where it runs (differs) | Installs as a plugin bundle | Remote server or your machine |
| Transport (differs) | Not stated | Streamable HTTP, stdio |
| Tools it declares (differs) | Not published | 42 |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 1 |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Apache-2.0 |
| Repository (differs) | github.com/chanmeng666/slack-waterline-skill | github.com/postmanlabs/postman-mcp-server |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 26 h ago, requires authentication |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of slack-waterline
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
-
Work with Slack using the configured Slack integration.
-
slack
Operate Slack workspaces from a terminal or agent: list channels, read messages, follow threads, search message history, list files, and verify inbound webhook signatures — with a…
-
Drive Slack from Claude Code with the slackcli binary: installs it if missing, checks authentication, then reads, sends, searches, and manages a workspace
-
Slack workspace integration MCP server - create channels, invite users, post messages, manage threads for team collaboration
-
Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a
Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, and triple-mode…
-
MCP server specialized in retrieving information from Slack messages and threads
What each says it does
slack-waterline
Read every message in a Slack workspace and prove nothing was missed, then write the daily or weekly digest and, when asked, the reply.
Postman MCP Server
Give your AI agents trusted access to the full Postman platform.
How to run each
slack-waterline
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Postman MCP Server As a remote MCP server
claude mcp add --transport http postman-mcp-server https://mcp.postman.com/mcp --header "Authorization: Bearer <YOUR_TOKEN>"Requires: POSTMAN_API_KEY (secret), Authorization header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Postman MCP Server has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of slack-waterline publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of slack-waterline publish no settings it asks for, so we do not compare settings.
What it can do: slack-waterline · What it can do: Postman MCP Server · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.