Substack MCP Server for Vercel AI SDK 6 tools — connect in under 2 minutes
The Vercel AI SDK is the TypeScript toolkit for building AI-powered applications. Connect Substack through Vinkius and every tool is available as a typed function. ready for React Server Components, API routes, or any Node.js backend.
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Vinkius supports streamable HTTP and SSE.
import { createMCPClient } from "@ai-sdk/mcp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";
async function main() {
const mcpClient = await createMCPClient({
transport: {
type: "http",
// Your Vinkius token. get it at cloud.vinkius.com
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
});
try {
const tools = await mcpClient.tools();
const { text } = await generateText({
model: openai("gpt-4o"),
tools,
prompt: "Using Substack, list all available capabilities.",
});
console.log(text);
} finally {
await mcpClient.close();
}
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Substack MCP Server
Connect Substack to your AI agent and manage your newsletter publication conversationally.
The Vercel AI SDK gives every Substack tool full TypeScript type inference, IDE autocomplete, and compile-time error checking. Connect 6 tools through Vinkius and stream results progressively to React, Svelte, or Vue components. works on Edge Functions, Cloudflare Workers, and any Node.js runtime.
What you can do
- Post Management — List, create, and manage newsletter posts including drafts, published, and scheduled content.
- Subscriber Insights — Query subscriber counts, growth trends, and audience demographics.
- Publication Settings — Access and modify publication metadata, categories, and custom domains.
- Content Analytics — Track open rates, click rates, and engagement metrics per post.
The Substack MCP Server exposes 6 tools through the Vinkius. Connect it to Vercel AI SDK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Substack to Vercel AI SDK via MCP
Follow these steps to integrate the Substack MCP Server with Vercel AI SDK.
Install dependencies
Run npm install @ai-sdk/mcp ai @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the script
Save to agent.ts and run with npx tsx agent.ts
Explore tools
The SDK discovers 6 tools from Substack and passes them to the LLM
Why Use Vercel AI SDK with the Substack MCP Server
Vercel AI SDK provides unique advantages when paired with Substack through the Model Context Protocol.
TypeScript-first: every MCP tool gets full type inference, IDE autocomplete, and compile-time error checking out of the box
Framework-agnostic core works with Next.js, Nuxt, SvelteKit, or any Node.js runtime. same Substack integration everywhere
Built-in streaming UI primitives let you display Substack tool results progressively in React, Svelte, or Vue components
Edge-compatible: the AI SDK runs on Vercel Edge Functions, Cloudflare Workers, and other edge runtimes for minimal latency
Substack + Vercel AI SDK Use Cases
Practical scenarios where Vercel AI SDK combined with the Substack MCP Server delivers measurable value.
AI-powered web apps: build dashboards that query Substack in real-time and stream results to the UI with zero loading states
API backends: create serverless endpoints that orchestrate Substack tools and return structured JSON responses to any frontend
Chatbots with tool use: embed Substack capabilities into conversational interfaces with streaming responses and tool call visibility
Internal tools: build admin panels where team members interact with Substack through natural language queries
Substack MCP Tools for Vercel AI SDK (6)
These 6 tools become available when you connect Substack to Vercel AI SDK via MCP:
get_leaderboard
Get leaderboard
get_post
Get post
get_post_stats
Get post stats
get_publication_info
Get publication info
list_posts
List recent posts
list_subscribers
List subscribers
Example Prompts for Substack in Vercel AI SDK
Ready-to-use prompts you can give your Vercel AI SDK agent to start working with Substack immediately.
"How many subscribers does my Substack have?"
"Draft a new newsletter post titled 'The Future of AI in Sales'."
"What was the open rate on my last newsletter?"
Troubleshooting Substack MCP Server with Vercel AI SDK
Common issues when connecting Substack to Vercel AI SDK through the Vinkius, and how to resolve them.
createMCPClient is not a function
npm install @ai-sdk/mcpSubstack + Vercel AI SDK FAQ
Common questions about integrating Substack MCP Server with Vercel AI SDK.
How does the Vercel AI SDK connect to MCP servers?
createMCPClient from @ai-sdk/mcp and pass the server URL. The SDK discovers all tools and provides typed TypeScript interfaces for each one.Can I use MCP tools in Edge Functions?
Does it support streaming tool results?
useChat and streamText that handle tool calls and display results progressively in the UI.Connect Substack with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Substack to Vercel AI SDK
Get your token, paste the configuration, and start using 6 tools in under 2 minutes. No API key management needed.