Substack by Cotlet

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What does this entry provide?

Substack by Cotlet is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 76/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Substack by Cotlet to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 76/100
Install method: streamable-http
Repo: cotletdev/substack-api-mcp-server
Repo updated: Oct 24, 2026

Install command

mcp add dev.cotlet/substack https://cotlet.dev/mcp/v1/substack/connect

Install method: streamable-http

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Oct 24, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-24T10:51:20.545907Z",
      "publishedAt": "2026-10-24T10:51:20.545907Z",
      "statusChangedAt": "2026-10-24T10:51:20.545907Z"
    }
  },
  "server": {
    "name": "dev.cotlet/substack",
    "icons": [
      {
        "src": "https://cotlet.dev/icon-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "Substack by Cotlet",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://cotlet.dev/mcp/v1/substack/connect",
        "type": "streamable-http"
      },
      {
        "url": "https://cotlet.dev/mcp/v1/substack",
        "type": "streamable-http",
        "headers": [
          {
            "name": "Authorization",
            "isSecret": true,
            "isRequired": true,
            "description": "Bearer followed by your Cotlet API key (cotlet.dev → API keys)"
          }
        ]
      }
    ],
    "version": "1.0.2",
    "packages": [
      {
        "version": "1.0.3",
        "transport": {
          "type": "stdio"
        },
        "identifier": "substack-api-mcp",
        "runtimeHint": "uvx",
        "registryType": "pypi",
        "packageArguments": [
          {
            "type": "positional",
            "value": "mcp"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/cotletdev/substack-api-mcp-server",
      "source": "github"
    },
    "websiteUrl": "https://cotlet.dev/integrations/substack-api-mcp-server",
    "description": "Posts, Notes, messages, subscribers and stats for your publication."
  }
}

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