Yousign MCP Server for Vercel AI SDK 8 tools — connect in under 2 minutes
The Vercel AI SDK is the TypeScript toolkit for building AI-powered applications. Connect Yousign through the 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 Yousign, 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 Yousign MCP Server
Connect your Yousign account to any AI agent and manage your electronic signature infrastructure through natural conversation.
The Vercel AI SDK gives every Yousign tool full TypeScript type inference, IDE autocomplete, and compile-time error checking. Connect 8 tools through the 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
- Signature Lifecycle — Create new signature requests in draft mode, add signers, and activate requests to send them for signing
- Request Monitoring — List and browse all signature processes and retrieve real-time status (draft, ongoing, done, cancelled)
- Signer Management — Define and add multiple signers to a request by providing their contact details directly from your agent
- Document Discovery — List all files attached to a specific signature request to verify the contents before activation
- Cancellation Control — Permanently stop ongoing signature requests and provide custom reasons for termination through simple commands
- Quota Auditing — Retrieve API consumption and credit details to monitor your Yousign plan usage and remaining signatures
- Deep Discovery — Quickly find unique request, signer, and document IDs required for automated legal workflows
The Yousign MCP Server exposes 8 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 Yousign to Vercel AI SDK via MCP
Follow these steps to integrate the Yousign 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 8 tools from Yousign and passes them to the LLM
Why Use Vercel AI SDK with the Yousign MCP Server
Vercel AI SDK provides unique advantages when paired with Yousign 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 Yousign integration everywhere
Built-in streaming UI primitives let you display Yousign 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
Yousign + Vercel AI SDK Use Cases
Practical scenarios where Vercel AI SDK combined with the Yousign MCP Server delivers measurable value.
AI-powered web apps: build dashboards that query Yousign in real-time and stream results to the UI with zero loading states
API backends: create serverless endpoints that orchestrate Yousign tools and return structured JSON responses to any frontend
Chatbots with tool use: embed Yousign capabilities into conversational interfaces with streaming responses and tool call visibility
Internal tools: build admin panels where team members interact with Yousign through natural language queries
Yousign MCP Tools for Vercel AI SDK (8)
These 8 tools become available when you connect Yousign to Vercel AI SDK via MCP:
activate_request
This triggers email notifications to all signers. Activates a draft signature request and sends it to signers
add_signer
Provide the request ID and signer contact details. Adds a new signer to an existing draft signature request
cancel_request
Provide the request ID and an optional reason for cancellation. Permanently cancels an ongoing signature request
create_request
Provide a descriptive name for the request. Creates a new signature request in draft mode
get_consumption
Retrieves API consumption and quota details
get_request
Retrieves details and status for a specific signature request
list_documents
Lists all documents attached to a specific signature request
list_requests
Lists all signature requests in the Yousign organization
Example Prompts for Yousign in Vercel AI SDK
Ready-to-use prompts you can give your Vercel AI SDK agent to start working with Yousign immediately.
"List all ongoing signature requests in Yousign."
"Add 'Jane Smith' (jane@example.com) as a signer to request ID 'req-101'."
"Check our current API consumption and credits."
Troubleshooting Yousign MCP Server with Vercel AI SDK
Common issues when connecting Yousign to Vercel AI SDK through the Vinkius, and how to resolve them.
createMCPClient is not a function
npm install @ai-sdk/mcpYousign + Vercel AI SDK FAQ
Common questions about integrating Yousign 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 Yousign 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 Yousign to Vercel AI SDK
Get your token, paste the configuration, and start using 8 tools in under 2 minutes. No API key management needed.