Substack MCP Server

Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only.

What does this entry provide?

Substack MCP Server is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 73/100. 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 MCP Server 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: 73/100
Install method: npm
Repo: conorbronsdon/substack-mcp
Repo updated: Sep 24, 2026

Install command

npx -y @conorbronsdon/substack-mcp@1.3.0

Install method: npm

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Sep 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": "2026-09-24T02:35:28.273238Z",
      "publishedAt": "2026-09-24T02:35:28.273238Z",
      "statusChangedAt": "2026-09-24T02:35:28.273238Z"
    }
  },
  "server": {
    "name": "io.github.conorbronsdon/substack-mcp",
    "title": "Substack MCP Server",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "1.3.0",
    "packages": [
      {
        "version": "1.3.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@conorbronsdon/substack-mcp",
        "runtimeHint": "npx",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "SUBSTACK_PUBLICATION_URL",
            "isRequired": true,
            "description": "Your Substack publication URL (e.g., https://yourblog.substack.com)",
            "placeholder": "https://yourblog.substack.com"
          },
          {
            "name": "SUBSTACK_SESSION_TOKEN",
            "isSecret": true,
            "isRequired": true,
            "description": "connect.sid cookie value from your Substack session"
          },
          {
            "name": "SUBSTACK_USER_ID",
            "isRequired": true,
            "description": "Your Substack user ID",
            "placeholder": "12345"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/conorbronsdon/substack-mcp",
      "source": "github"
    },
    "websiteUrl": "https://github.com/conorbronsdon/substack-mcp#readme",
    "description": "Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only."
  }
}

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