No install? Use cloud.anythingmcp.com directly.
Sign in, install the Substack in one click, paste the credentials, mint an MCP API key — done. No Docker, no git clone, no local server to run.
💡 ¿Sin instalación? Usa cloud.anythingmcp.com directamente. Inicia sesión, pulsa Connectors → Substack, pega tus credenciales, genera una MCP API key — listo. Sin Docker, sin
git clone, sin servidor local.
Substack + ChatGPT
Read Substack publication content, posts, comments, podcast episodes via public RSS/JSON feeds. 5 tools, no auth required.
Requisitos previos
Las instrucciones de configuración completas están incluidas en el conector (visibles en el store al seleccionarlo). Las variables de entorno requeridas:
SUBSTACK_PUBLICATION_URL
Paso 1 — Obtener credenciales
Setup: NO API KEY. Set SUBSTACK_PUBLICATION_URL = the publication's base URL (e.g. https://lennysnewsletter.substack.com). For tools that target a specific publication, the URL is taken from this env var.
Authentication: NONE. All reads use public endpoints (the same JSON Substack's own site fetches).
Content endpoints available:
/api/v1/posts?limit=N&offset=M— paginated posts list (each post: id, title, slug, post_date, audience, type)/api/v1/posts/by-id/{id}— single post detail/api/v1/comments/{post_id}— top comments on a post/api/v1/podcast/feed— podcast episodes (audio newsletters only)/feed— standard RSS feed
…(continued in the in-app connector instructions)
Paso 2 — Instalar el adapter
git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d
Paso 3 — Añadir el conector en ChatGPT
ChatGPT soporta servidores MCP a través de la función Connectors (planes Plus / Pro / Team / Enterprise). El plan gratuito no admite conectores personalizados.
- Abre ChatGPT → Settings → Connectors (o pulsa el icono 🔧 en el composer → Manage connectors).
- Pulsa "Add custom connector".
- Rellena:
- Name:
Substack - MCP server URL:
https://cloud.anythingmcp.com/mcp - Authentication: Bearer token → pega tu MCP API key (de AnythingMCP → Profile → MCP API Keys → New Key)
- Name:
- Pulsa Connect para autorizar.
Herramientas disponibles
| Tool | What it does |
|---|---|
substack_list_posts | List recent posts from the publication |
substack_search_posts | Search posts in the publication |
substack_get_post_by_id | Fetch a single post by its numeric ID |
substack_get_comments | Get top comments on a post |
substack_get_rss_feed | Fetch the publication's standard RSS feed (Atom format) |
FAQ
¿Funciona el plan gratuito de ChatGPT con los Connectors MCP personalizados? No — se necesita Plus, Pro, Team o Enterprise.