Can I check the status of a signature request via chat?

Yes. The `get_signature_request` tool allows your AI agent to retrieve the real-time status of any request ID, showing you whether it is in 'draft', 'ongoing', 'done', or has been 'cancelled'.

How do I add signers to a draft request using the agent?

You can use the `add_signer` tool. Provide the unique request ID along with the signer's email, first name, and last name. You can add multiple signers to a single request before activating it.

Can I see how many signature credits I have left in my plan?

Absolutely. Use the `get_api_consumption` tool to retrieve your current usage statistics and remaining signature credits, helping you manage your Yousign subscription budget.

Yousign MCP Server for Pydantic AI 8 tools — connect in under 2 minutes

Name: Yousign
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 8 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Yousign through the Vinkius and every tool is automatically validated against Pydantic schemas — catch errors at build time, not in production.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP

async def main():
    # Your Vinkius token — get it at cloud.vinkius.com
    server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

    agent = Agent(
        model="openai:gpt-4o",
        mcp_servers=[server],
        system_prompt=(
            "You are an assistant with access to Yousign "
            "(8 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Yousign?"
    )
    print(result.data)

asyncio.run(main())

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Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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.

Pydantic AI validates every Yousign tool response against typed schemas, catching data inconsistencies at build time. Connect 8 tools through the Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code — full type safety, structured output guarantees, and dependency injection for testable agents.

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 Pydantic AI 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 Pydantic AI via MCP

Follow these steps to integrate the Yousign MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 8 tools from Yousign with type-safe schemas

Why Use Pydantic AI with the Yousign MCP Server

Pydantic AI provides unique advantages when paired with Yousign through the Model Context Protocol.

Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application

Model-agnostic architecture — switch between OpenAI, Anthropic, or Gemini without changing your Yousign integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your Yousign connection logic from agent behavior for testable, maintainable code

Yousign + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the Yousign MCP Server delivers measurable value.

Type-safe data pipelines: query Yousign with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple Yousign tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query Yousign and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock Yousign responses and write comprehensive agent tests

Yousign MCP Tools for Pydantic AI (8)

These 8 tools become available when you connect Yousign to Pydantic AI 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 Pydantic AI

Ready-to-use prompts you can give your Pydantic AI 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 Pydantic AI

Common issues when connecting Yousign to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Yousign + Pydantic AI FAQ

Common questions about integrating Yousign MCP Server with Pydantic AI.

How does Pydantic AI discover MCP tools?

Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.

Does Pydantic AI validate MCP tool responses?

Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.

Can I switch LLM providers without changing MCP code?

Absolutely. Pydantic AI abstracts the model layer — your Yousign MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.