SignaTrust

Name: SignaTrust
Author: SignaTrustDev

by SignaTrustDevversion 0.3.2i★ –iRuns on your computer

Registry nameio.signatrust/mcp-server

Install

Overview

Description from the maker (original English)

Blockchain-anchored e-signatures: send envelopes, manage templates, verify anchors on Solana.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: SIGNATRUST_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: SIGNATRUST_API_KEY, SIGNATRUST_API_URL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

claude mcp add signatrust --env SIGNATRUST_API_KEY=your-value --env SIGNATRUST_API_URL=your-value -- npx -y @signatrust/mcp-server

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "signatrust": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@signatrust/mcp-server"
      ],
      "env": {
        "SIGNATRUST_API_KEY": "your-value",
        "SIGNATRUST_API_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

SIGNATRUST_API_KEY secret required env
SignaTrust API key (starts with sk_live_). Create one at Settings -> API keys.
SIGNATRUST_API_URL env
Override the API base URL. Defaults to https://app.signatrust.io; set for self-hosted or local development.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain signatrust.io (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32466 servers in this category
Published to the registry more recently than 15% of the other 32466 servers in this category
Basic checks equal to or better than 100% of the other 32466 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is SignaTrust safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: SIGNATRUST_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.3.2) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, HotCodePush

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@signatrust/mcp-server

Send and verify e-signatures from Claude — zero-custody, with independently verifiable cryptographic evidence for every signature.

Model Context Protocol (MCP) server for the SignaTrust document signing API. Enables AI assistants like Claude to create envelopes, manage templates, check signing status, and verify blockchain anchors via natural language.

Quick Start

Claude Code

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

Then set your API key in the MCP server environment.

Claude Desktop

Add to your claude_desktop_config.json:

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

Cursor

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per-project):

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

VS Code

Add to .vscode/mcp.json (note the top-level key is servers, not mcpServers):

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

To keep the key out of the file, use an input prompt instead of env:

"inputs": [ { "id": "signatrust-key", "type": "promptString", "description": "SignaTrust API key", "password": true } ], "servers": { "signatrust": { "command": "npx", "args": ["-y", "@signatrust/mcp-server"], "env": { "SIGNATRUST_API_KEY": "${input:signatrust-key}" } } } }

Available Tools

Tool	Description	Required Scope
`list_envelopes`	List envelopes with status filter and pagination	`envelopes:read`
`get_envelope`	Get full envelope details (signers, docs, blockchain)	`envelopes:read`
`create_envelope`	Create and send envelope for signing. Accepts `documentIds` (after `upload_document`) or `templateId` (backend copies the template). Supports three-tier `securityLevel`.	`envelopes:write`
`list_templates`	List available document templates	`templates:read`
`upload_document`	Read a local file and upload it to SignaTrust, returning a document ID for `create_envelope`	`documents:write`
`download_document`	Get a time-limited pre-signed URL to download a document (e.g. the executed PDF)	`documents:read`
`analyze_document`	Run AI contract analysis on an envelope (Gemini-powered risk/sentiment review, plan-gated)	`ai:analyze`
`verify_blockchain`	Verify Solana anchor and return composite hash + file hash + explorer URL	`envelopes:read`
`get_evidence`	Get the full court-ready evidence bundle (envelope, signers, audit trail, blockchain verification)	`envelopes:read`

Three-tier security. create_envelope accepts securityLevel: STANDARD (bearer token only), VERIFIED (adds SMS/email OTP — recommended for employment, vendor, or healthcare consent), or CERTIFIED (adds WebAuthn biometric + device binding — recommended for real estate, high-value, or regulatory signings).

API Key Scopes

Create an API key at Settings > API Keys in your SignaTrust dashboard. Assign scopes based on what tools you need:

Scope	Tools Enabled
`envelopes:read`	list_envelopes, get_envelope, verify_blockchain, get_evidence
`envelopes:write`	create_envelope
`templates:read`	list_templates
`documents:write`	upload_document
`documents:read`	download_document
`ai:analyze`	analyze_document

Environment Variables

Variable	Required	Default	Description
`SIGNATRUST_API_KEY`	Yes	-	API key starting with `sk_live_`
`SIGNATRUST_API_URL`	No	`https://app.signatrust.io`	API base URL

Natural Language Examples

Once connected, you can ask your AI assistant things like:

"List all my pending envelopes"
"Upload ~/Documents/nda.pdf and send it to alice@example.com with VERIFIED security"
"Show me available templates, then create a lease agreement from the residential template for John Doe"
"Check the blockchain verification for envelope env_abc123 and show me the composite hash"
"Run AI analysis on envelope env_xyz — I want to know if there are any risky clauses before the signer reviews it"

Development

# 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

Architecture

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

The HTTP client and API types are vendored under src/vendor/signatrust-sdk/ so this package has no external runtime dependencies beyond @modelcontextprotocol/sdk.

SignaTrust

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

HotCodePush

README from the maker

@signatrust/mcp-server

Quick Start

Claude Code

Claude Desktop

Cursor

VS Code

Available Tools

API Key Scopes

Environment Variables

Natural Language Examples

Development

Build

Run tests

Run tests with coverage

Type check

Local smoke test

Architecture