#
ENJA

substack-api-mcp

alxgntv/substack-api-mcp

An MCP server that bridges the gap between AI assistants and Substack, allowing authors to draft, schedule, and publish content directly from their agent environment.

100 0No licenseUpdated 2026-08-09

Overview

Because Substack lacks an official writing API, this integration uses session cookies and a third-party gateway key to provide a full suite of management tools. Authors can create and edit drafts, schedule future releases, manage publication tags, and even run AI-text checks all from inside supported AI clients.

Capabilities

  • Create and update publication drafts
  • Publish posts immediately or schedule for later
  • Manage tags and categorization
  • Detect AI-generated text slop using built-in checking tools
  • Verify user sessions and check publication connectivity

Best for

Drafting and publishing newsletter issues directly from Claude or Cursor, Scheduling upcoming posts via natural language prompts, Managing tags and organizing content libraries automatically

Works with

Claude CodeCursorChatGPT
Evoa Score breakdown= Σ (score × weight)
60
Task usefulness20%88 → +17.6

実タスクにどれだけ役立つか(機能の豊富さ・用途の明確さ)。 AIによるcapabilities/use-cases解析

Code quality15%75 → +11.3

実装・指示の品質。 AIによるSKILL.md/README解析

Maintenance15%100 → +15.0

リポジトリがどれだけ活発に保守されているか。 GitHub 最終push日時の新しさ

Documentation12%27 → +3.2

ドキュメントの充実度・分かりやすさ。 README/独自要約の情報量

Security15%50 → +7.5

危険・不審な挙動が無いか。 AIによるセキュリティレビュー

Originality10%85 → +8.5

ありふれたラッパーではない独自性。 AIによる独自性判定

Popularity8%50 → +4.0

コミュニティの採用度。 GitHub Stars/Forks(対数スケール)

Compatibility5%75 → +3.8

対応AIエージェントの広さ。 AIによる対応エージェント判定

Weighted total70.8 / 100

ライセンス不明/制限あり(Red)のSkillは総合スコアに0.85倍の補正を適用します。 ランキングはこのScoreのみで決まり、広告で変わりません。 算出方法の詳細 →

Security considerations

Requires sensitive session cookies and API keys to be passed via environment variables, posing a risk if the host environment is compromised.

Categories

Summary and analysis are original content generated by AI Skills Rank. The skill's source text is not reproduced here — view it on the linked repository.