The SignaTrust MCP Server enables AI assistants to manage the full lifecycle of legally binding document signing via the SignaTrust API through natural language. Key capabilities include:

• Envelope Management: Create and send signing envelopes, list and filter them by status (DRAFT, SENT, NEEDS_SIGNATURE, COMPLETED, VOIDED, DECLINED), retrieve full details, and void in-progress envelopes.

• Document Handling: Upload local files (PDF, DOCX, or images) to obtain document IDs for envelope creation, and download completed documents.

• Template Utilization: List available system and user-created templates to streamline envelope creation.

• Security Tiers: Support for three signing security levels:

  • STANDARD – Bearer token only

  • VERIFIED – Adds SMS/email OTP (suitable for employment, vendor, or healthcare contracts)

  • CERTIFIED – Adds WebAuthn biometric + device binding (for real estate, high-value, or regulated signings)

• Blockchain Verification: Verify completed envelopes via Solana blockchain anchoring, returning composite hash, file hash, transaction ID, and an explorer URL for independent proof of integrity.

• AI Contract Analysis: Run Gemini-powered analysis on envelope documents, returning risk assessments, flagged clauses, and an overall sentiment rating (SAFE / CAUTION / RISKY). Requires a Pro Lite plan or above.

• Evidentiary Support: Retrieve court-ready evidence bundles including audit trails and blockchain verification.

Enables verification of Solana blockchain anchors for signed documents, returning composite hash, file hash, and explorer URL.

Supports WebAuthn biometric and device binding for CERTIFIED security level when creating envelopes.

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@SignaTrust MCP Server Send the lease agreement to john@email.com for signing"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.

claude mcp add signatrust -- npx -y @signatrust/mcp-server

{
 "mcpServers": {
 "signatrust": {
 "command": "npx",
 "args": ["-y", "@signatrust/mcp-server"],
 "env": {
 "SIGNATRUST_API_KEY": "sk_live_your_key_here"
 }
 }
 }
}

# Install dependencies
npm install

# Build
npm run build

# Run tests
npm test

# Run tests with coverage
npm run test:coverage

# Type check
npm run typecheck

# Local smoke test
SIGNATRUST_API_KEY=sk_live_xxx SIGNATRUST_API_URL=http://localhost:3000 node dist/server.js

src/
 server.ts # Entry point — env validation, MCP server setup, stdio transport
 handlers.ts # Tool definitions and handler dispatch (testable)
 errors.ts # RFC 7807 ProblemDetails -> MCP tool error mapping
 vendor/signatrust-sdk/ # Vendored HTTP client + types (zero external runtime deps)
 *.test.ts # Co-located test files

Looking for Admin?