SignaTrust

Name: SignaTrust
Author: SignaTrustDev

by SignaTrustDevversion 0.3.2i★ 1iRuns on your computer

Registry nameio.signatrust/mcp-server

How to install

What it does

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

Connects Runs on your computer
Account or key Needs SIGNATRUST_API_KEY
Category Crypto & blockchain

Install

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

Passed 3/3 checks · Runs on your computer

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a SignaTrust key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

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

Paste the key only into the app’s field, never into a chat or to anyone

Done

Quit Claude and open it again
Done
Try it
Use SignaTrust and tell me what you can do for me, then show me one thing
✓ If Claude says it is using SignaTrust or shows a SignaTrust tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect SignaTrust yet

SignaTrust runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect SignaTrust

Steps for Claude →You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time)

B · Others in Crypto & blockchain that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Solana MCP by Vybe✓ ChatGPT
0xinsider✓ ChatGPT
Highwire✓ ChatGPT

Works with Claude Code, with some setup first

You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a SignaTrust key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done
4
Paste this command and press Enter
```
claude mcp add --scope user signatrust --env SIGNATRUST_API_KEY=your-value --env SIGNATRUST_API_URL=your-value -- npx -y @signatrust/mcp-server
```
Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Done
Type /mcp in Claude Code
You should see SignaTrust listed as connected
Done
Try it
Use SignaTrust and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using SignaTrust or shows a SignaTrust tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a SignaTrust key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the SignaTrust settings, SIGNATRUST_API_KEY, SIGNATRUST_API_URL is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use SignaTrust and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using SignaTrust or shows a SignaTrust tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a SignaTrust key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a SignaTrust key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Fill in your key
In the SignaTrust settings, SIGNATRUST_API_KEY, SIGNATRUST_API_URL is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use SignaTrust and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using SignaTrust or shows a SignaTrust tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use SignaTrust💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

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

Claude Desktop (claude_desktop_config.json)

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

Cursor (~/.cursor/mcp.json)

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

VS Code (mcp.json)

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

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.

At a glance

GitHub stars i: 1
Downloads per weeki: 44/wk
Verified domain: ✓ signatrust.io
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.3.2
Categoryi: Crypto & blockchain
Published to registryi: Jun 26, 2026
Code last changedi: Jul 18, 2026
Maker: SignaTrustDev
Packages: npm: @signatrust/mcp-server
Repo: SignaTrustDev/signatrust-mcp
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 12, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain signatrust.io (the registry checks domain ownership)
✓ Pass
Still maintained
Code last changed 4 months ago
✓ Pass
Has a licence
Uses MIT
– 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

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Crypto & blockchaini

More stars than 84% of the other 1663 servers in this category
Published to the registry more recently than 23% of the other 1663 servers in this category
Basic checks equal to or better than 100% of the other 1663 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 3 of 3 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 4 months ago, and the latest version (0.3.2) reached the registry 5 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: Solana MCP by Vybe, Oracle3 prediction-market arbitrage checks, Polymarket Paper Trader

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Solana MCP by Vybe

Solana MCP developer toolkit: wallets, trades, markets, PnL, transfers, onchain, swaps & API tools.

by vybenetworkGrowing★ 2.6K Stars for the whole repoUpdated 6 months ago

Runs in the cloud

Install

Oracle3 prediction-market arbitrage checks

Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents.

by YichengYang-EthanGrowing↓ 35/wk★ 569Updated 42 days ago

Runs on your computer

Install

Polymarket Paper Trader

Polymarket paper trading for AI agents: $10k paper money, real order books, official fees.

by agent-nextGrowing↓ 226/wk★ 506Updated 27 days ago

Runs on your computer

Install

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

What it does

Install

Install Node.js

Sign up and create a SignaTrust key

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Sign up and create a SignaTrust key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Sign up and create a SignaTrust key

Click this button to open Cursor

Fill in your key

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Sign up and create a SignaTrust key

Click this button to open VS Code

Fill in your key

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

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

Discussion

User reviews

Compared with others in Crypto & blockchaini

Common questions

Others in the same category

Solana MCP by Vybe

Oracle3 prediction-market arbitrage checks

Polymarket Paper Trader

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