Bring Contract Signing
to Windsurf
Learn how to connect Yousign to Windsurf and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the Yousign MCP Server?
Connect your Yousign account to any AI agent to automate your electronic signature workflows and contract management through natural conversation.
What you can do
- Request Management — Create and manage electronic signature requests for multiple documents and signers.
- Signer Customization — Add signers with customizable signature levels and authentication modes (OTP, no-OTP).
- Real-time Monitoring — Track signature request status in real-time and automate the activation/sending process.
- Compliance & Auditing — Download signed documents and comprehensive audit trails for full legal compliance.
How it works
1. Subscribe to this server
2. Enter your Yousign API Key from your account settings
3. Start managing your e-signatures from Claude, Cursor, or any MCP-compatible client
Who is this for?
- HR Teams — automate the sending of employment contracts and onboarding documents.
- Legal Departments — manage contract lifecycles and ensure all agreements are legally binding.
- Sales Operations — accelerate deal closures by automating the signature process for sales agreements.
Built-in capabilities (12)
Send for signature
Note: In this version, pass metadata info. Upload PDF to sign
Define who signs
Stop signature process
Start new signature process
Add to address book
Remove draft request
Get evidence file link
Get request status
Get account info
List all requests
List address book
Why Windsurf?
Windsurf's Cascade agent chains multiple Yousign tool calls autonomously. query data, analyze results, and generate code in a single agentic session. Paste Vinkius Edge URL, reload, and all 12 tools are immediately available. Real-time tool feedback appears inline, so you see API responses directly in your editor.
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Windsurf's Cascade agent autonomously chains multiple tool calls in sequence, solving complex multi-step tasks without manual intervention
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Purpose-built for agentic workflows. Cascade understands context across your entire codebase and integrates MCP tools natively
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JSON-based configuration means zero code changes: paste a URL, reload, and all 12 tools are immediately available
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Real-time tool feedback is displayed inline, so you see API responses directly in your editor without switching contexts
Yousign in Windsurf
Yousign and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Yousign to Windsurf through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Yousign in Windsurf
The Yousign 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. All 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Windsurf only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* 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
How Vinkius secures
Yousign for Windsurf
Every tool call from Windsurf to the Yousign MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
What is the difference between Draft and Ongoing status?
A 'draft' request is still being prepared (adding documents or signers). Once you 'activate' it, it becomes 'ongoing' and signers receive their invitations to sign.
How do I download a completed signed document?
When a request status is 'done', you can retrieve download links for each document using the 'get_signature_request' tool through your AI agent.
How does Windsurf discover MCP tools?
Windsurf reads the mcp_config.json file on startup and connects to each configured server via Streamable HTTP. Tools are listed in the MCP panel and available to Cascade automatically.
Can Cascade chain multiple MCP tool calls?
Yes. Cascade is an agentic system. it can plan and execute multi-step workflows, calling several tools in sequence to accomplish complex tasks without manual prompting between steps.
Does Windsurf support multiple MCP servers?
Yes. Add as many servers as needed in mcp_config.json. Each server's tools appear in the MCP panel and Cascade can use tools from different servers in a single flow.
Server not connecting
Check Settings → MCP for the server status. Try toggling it off and on.