Bring Contract Signing
to LlamaIndex
Learn how to connect Yousign to LlamaIndex 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 LlamaIndex?
LlamaIndex agents combine Yousign tool responses with indexed documents for comprehensive, grounded answers. Connect 12 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.
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Data-first architecture: LlamaIndex agents combine Yousign tool responses with indexed documents for comprehensive, grounded answers
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Query pipeline framework lets you chain Yousign tool calls with transformations, filters, and re-rankers in a typed pipeline
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Multi-source reasoning: agents can query Yousign, a vector store, and a SQL database in a single turn and synthesize results
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Observability integrations show exactly what Yousign tools were called, what data was returned, and how it influenced the final answer
Yousign in LlamaIndex
Yousign and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Yousign to LlamaIndex 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 LlamaIndex
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 LlamaIndex 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 LlamaIndex
Every tool call from LlamaIndex 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 LlamaIndex connect to MCP servers?
Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.
Can I combine MCP tools with vector stores?
Yes. LlamaIndex agents can query Yousign tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.
Does LlamaIndex support async MCP calls?
Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.
BasicMCPClient not found
Install: pip install llama-index-tools-mcp