Are signatures required for write operations?

Yes. Write operations require dual signatures, such as sender and receiver or distribution signatures.

Does the MCP server verify signatures itself?

No. It is a thin HTTP client; the server-side API and Lambda functions verify signatures and enforce chain continuity.

Are cloud credentials required?

No external database or cloud credentials are required. An API key can optionally be supplied for authenticated access.

W3ledger MCP Server

financeledgercryptographytokenspayments

MCP server for balances, gift cards, sponsor cards, and dual-signed purchases backed by a self-verifying cryptographic ledger.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "w3ship-w3ledger-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "w3ledger-mcp-server"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Overview

W3Ledger lets AI agents check token balances, manage gift and sponsor cards, and process purchases through its API. Write operations require dual signatures, while server-side functions verify signatures, chain continuity, balances, and transaction timing. Use it for ledger-based token transfers and purchases involving supported signature schemes.

Use cases

Check DAH, DAHYM, DAHLOR, and W3SH balances

Create and claim gift cards

Create and claim location-based sponsor cards

Process dual-signed product purchases

Inspect W3SH loyalty tiers and cashback rates

Key features

Balance lookup for supported tokens

Gift card creation and claiming

GPS-based sponsor card creation and claiming

Dual-signed purchase processing

EVM, Ed25519, ML-DSA-65, and SLH-DSA signatures

Chain-linked transaction verification on the server

Capabilities & Tool Schemas

Inspect callable tools, capabilities, and parameters exposed to AI agents by W3ledger MCP Server.

Extracted Tool Capabilities

Balance lookup for supported tokens

Gift card creation and claiming

GPS-based sponsor card creation and claiming

Dual-signed purchase processing

EVM, Ed25519, ML-DSA-65, and SLH-DSA signatures

Chain-linked transaction verification on the server

Documentation Overview

W3Ledger MCP Server

A self-verifying ledger for AI agents — every transaction is cryptographically signed and chain-linked.

W3Ledger (Rolledge) is an MCP (Model Context Protocol) server that gives AI agents the ability to check token balances, create and claim gift cards, create and claim sponsor cards, and process dual-signed purchases — all secured by cryptographic signatures.

Every write operation requires dual signatures (sender + receiver/distribution). The server-side Lambda functions verify all signatures and enforce chain continuity. The MCP server is a thin HTTP client — it cannot bypass security.

⚡ Quick Start

Install via npx (recommended)

No installation required — just configure your AI client:

Claude Desktop (claude_desktop_config.json):

config.json

{
  "mcpServers": {
    "w3ledger": {
      "command": "npx",
      "args": ["-y", "w3ledger-mcp-server"]
    }
  }
}

Cursor (.cursor/mcp.json):

config.json

{
  "mcpServers": {
    "w3ledger": {
      "command": "npx",
      "args": ["-y", "w3ledger-mcp-server"]
    }
  }
}

VS Code (.vscode/mcp.json):

config.json

{
  "servers": {
    "w3ledger": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "w3ledger-mcp-server"]
    }
  }
}

Prerequisites

Node.js 18+
No external database or cloud credentials required — the server connects to the W3Ledger API

🛠️ Tools (6 total)

🟢 Read (Safe)

Tool	Description
`check_balance`	Check DAH, DAHYM, DAHLOR, and W3SH token balances for a public key. Includes loyalty tier (Seed → Joist) with cashback rates.

🟡 Write (Requires Dual Signatures)

Tool	Description
`create_gift_card`	Create a gift card by debiting the customer's DAH balance. Requires customer signature + distribution co-signature.
`claim_gift_card`	Claim an ISSUED gift card and credit the claimer's DAH balance.
`create_sponsor_card`	Create a location-based sponsor card with GPS coordinates. Requires dual signatures.
`claim_sponsor_card`	Claim an ISSUED sponsor card near the sponsor's location.
`purchase_product`	Purchase a product by debiting sender and crediting receiver (merchant). Requires sender + receiver dual signatures.

❌ Excluded (Intentionally)

Tool	Reason
`fund_account`	Uses server-side distribution keys. Too dangerous for MCP — could credit arbitrary accounts.

🔐 Security Model

W3Ledger implements a self-verifying chain — every transaction is cryptographically linked to the previous one:

Code

┌──────────────────────────────────────────────────────────┐
│  AI Agent (Claude / Cursor / VS Code)                    │
│  "Purchase a VR session for 35 DAH"                      │
└──────────────────┬───────────────────────────────────────┘
                   │ MCP Protocol (stdio)
┌──────────────────▼───────────────────────────────────────┐
│  W3Ledger MCP Server (thin HTTP client)                  │
│  • Forwards tool calls to API Gateway                    │
│  • Does NOT verify signatures (server does)              │
│  • Does NOT access database directly                     │
│  • Equivalent security to curl                           │
└──────────────────┬───────────────────────────────────────┘
                   │ HTTPS
┌──────────────────▼───────────────────────────────────────┐
│  API Gateway → Lambda Functions (server-side)            │
│                                                          │
│  ✅ Validates both signatures (sender + receiver)        │
│  ✅ Verifies chain continuity (prev_balance linkage)     │
│  ✅ Verifies previous transaction's signature            │
│  ✅ Checks balance sufficiency                           │
│  ✅ Enforces timestamp window (5 min)                    │
│  ✅ Atomic DynamoDB transactWrite (all-or-nothing)       │
└──────────────────────────────────────────────────────────┘

Supported Signature Schemes

Scheme	Use Case
EVM (secp256k1)	Ethereum/MetaMask wallets (`personal_sign`)
Ed25519 (Curve25519)	Solana, Cardano, Stellar, NEAR, Algorand, Aptos, Cosmos, TON wallets
ML-DSA-65	Post-quantum signatures (NIST standard)
SLH-DSA	Stateless hash-based post-quantum signatures

⚙️ Configuration

Environment Variables

Variable	Required	Default	Description
`ROLLEDGE_API_URL`	No	W3Ledger API	Base URL for the Rolledge API Gateway
`ROLLEDGE_API_KEY`	No	—	Optional API key for authenticated access
`MCP_LOG_LEVEL`	No	`info`	Logging level: `debug`, `info`, `warn`, `error`

Verify Installation

List all available tools:

Terminal

npx w3ledger-mcp-server --list-tools

💡 Example Conversation

Code

You:    "Check my balance"
Claude: [calls check_balance with your public key]
        "Your DAH balance is 1,250.00
         W3SH: 520 (Kindling tier — 10% cashback)
         DAHLOR: 0  |  DAHYM: 0"

You:    "Send a 100 DAH gift card to my friend for coffee"
Claude: [calls create_gift_card — requires your signature]
        "Please sign this transaction with your wallet..."
        [after dual signing]
        "Gift card GC-x8k2 created! Value: 100 DAH
         Your new balance: 1,150.00 DAH"

You:    "Buy a VR session for 35 DAH"
Claude: [calls purchase_product — requires sender + receiver signatures]
        "Transaction confirmed! Order #VR-2026-001
         Spent: 35 DAH  |  New balance: 1,115.00 DAH
         🏅 Cashback: 3.50 W3SH earned (Kindling tier, 10%)"

🏆 W3SH Loyalty Tiers

Purchases automatically earn W3SH cashback based on your tier:

Tier	W3SH Required	Cashback Rate
🌱 Seed	0	0%
🌿 Twig	100	5%
🔥 Kindling	500	10%
🪵 Log	2,000	15%
🏗️ Joist	10,000	20%

🔗 Links

Website: w3ship.com
GitHub: github.com/baskcart/rolledge
W3SH Token: Uniswap CCA Auction

📄 License

MIT — see LICENSE

Read the full README →View source on GitHub →

Related MCP Servers

View all in Finance & Fintech View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars

Stargazers on the source repository.

npm downloads

Package downloads in the last 30 days.

Last commit

6mo ago

Most recent push to the default branch.

Directory activity

2 views

Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about W3ledger MCP Server

It provides balance checks, gift card creation and claiming, sponsor card creation and claiming, and product purchases.

AllMCPs Directory Badge

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Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/w3ship-w3ledger-mcp-server?style=directory)](https://allmcps.com/mcp/w3ship-w3ledger-mcp-server)

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Technical Specs & Signals

CategoryFinance & Fintech

PricingFree

3/4 checks healthy over the last 32d

47Quality signal: Fair · 47/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools23/30

Adoption & activity2/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 26d ago via OSV.dev · w3ledger-mcp-server (npm)

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More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to W3ledger MCP Server →Install in Claude Desktop Install in Cursor Install in VS Code

W3ledger MCP Server

financeledgercryptographytokenspayments

MCP server for balances, gift cards, sponsor cards, and dual-signed purchases backed by a self-verifying cryptographic ledger.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "w3ship-w3ledger-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "w3ledger-mcp-server"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Overview

Use cases

Check DAH, DAHYM, DAHLOR, and W3SH balances

Create and claim gift cards

Create and claim location-based sponsor cards

Process dual-signed product purchases

Inspect W3SH loyalty tiers and cashback rates

Key features

Balance lookup for supported tokens

Gift card creation and claiming

GPS-based sponsor card creation and claiming

Dual-signed purchase processing

EVM, Ed25519, ML-DSA-65, and SLH-DSA signatures

Chain-linked transaction verification on the server

Capabilities & Tool Schemas

Inspect callable tools, capabilities, and parameters exposed to AI agents by W3ledger MCP Server.

Extracted Tool Capabilities

Balance lookup for supported tokens

Gift card creation and claiming

GPS-based sponsor card creation and claiming

Dual-signed purchase processing

EVM, Ed25519, ML-DSA-65, and SLH-DSA signatures

Chain-linked transaction verification on the server

Documentation Overview

W3Ledger MCP Server

A self-verifying ledger for AI agents — every transaction is cryptographically signed and chain-linked.

⚡ Quick Start

Install via npx (recommended)

No installation required — just configure your AI client:

Claude Desktop (claude_desktop_config.json):

config.json

{
  "mcpServers": {
    "w3ledger": {
      "command": "npx",
      "args": ["-y", "w3ledger-mcp-server"]
    }
  }
}

Cursor (.cursor/mcp.json):

config.json

{
  "mcpServers": {
    "w3ledger": {
      "command": "npx",
      "args": ["-y", "w3ledger-mcp-server"]
    }
  }
}

VS Code (.vscode/mcp.json):

config.json

{
  "servers": {
    "w3ledger": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "w3ledger-mcp-server"]
    }
  }
}

Prerequisites

Node.js 18+
No external database or cloud credentials required — the server connects to the W3Ledger API

🛠️ Tools (6 total)

🟢 Read (Safe)

Tool	Description
`check_balance`	Check DAH, DAHYM, DAHLOR, and W3SH token balances for a public key. Includes loyalty tier (Seed → Joist) with cashback rates.

🟡 Write (Requires Dual Signatures)

Tool	Description
`create_gift_card`	Create a gift card by debiting the customer's DAH balance. Requires customer signature + distribution co-signature.
`claim_gift_card`	Claim an ISSUED gift card and credit the claimer's DAH balance.
`create_sponsor_card`	Create a location-based sponsor card with GPS coordinates. Requires dual signatures.
`claim_sponsor_card`	Claim an ISSUED sponsor card near the sponsor's location.
`purchase_product`	Purchase a product by debiting sender and crediting receiver (merchant). Requires sender + receiver dual signatures.

❌ Excluded (Intentionally)

Tool	Reason
`fund_account`	Uses server-side distribution keys. Too dangerous for MCP — could credit arbitrary accounts.

🔐 Security Model

W3Ledger implements a self-verifying chain — every transaction is cryptographically linked to the previous one:

Code

┌──────────────────────────────────────────────────────────┐
│  AI Agent (Claude / Cursor / VS Code)                    │
│  "Purchase a VR session for 35 DAH"                      │
└──────────────────┬───────────────────────────────────────┘
                   │ MCP Protocol (stdio)
┌──────────────────▼───────────────────────────────────────┐
│  W3Ledger MCP Server (thin HTTP client)                  │
│  • Forwards tool calls to API Gateway                    │
│  • Does NOT verify signatures (server does)              │
│  • Does NOT access database directly                     │
│  • Equivalent security to curl                           │
└──────────────────┬───────────────────────────────────────┘
                   │ HTTPS
┌──────────────────▼───────────────────────────────────────┐
│  API Gateway → Lambda Functions (server-side)            │
│                                                          │
│  ✅ Validates both signatures (sender + receiver)        │
│  ✅ Verifies chain continuity (prev_balance linkage)     │
│  ✅ Verifies previous transaction's signature            │
│  ✅ Checks balance sufficiency                           │
│  ✅ Enforces timestamp window (5 min)                    │
│  ✅ Atomic DynamoDB transactWrite (all-or-nothing)       │
└──────────────────────────────────────────────────────────┘

Supported Signature Schemes

Scheme	Use Case
EVM (secp256k1)	Ethereum/MetaMask wallets (`personal_sign`)
Ed25519 (Curve25519)	Solana, Cardano, Stellar, NEAR, Algorand, Aptos, Cosmos, TON wallets
ML-DSA-65	Post-quantum signatures (NIST standard)
SLH-DSA	Stateless hash-based post-quantum signatures

⚙️ Configuration

Environment Variables

Variable	Required	Default	Description
`ROLLEDGE_API_URL`	No	W3Ledger API	Base URL for the Rolledge API Gateway
`ROLLEDGE_API_KEY`	No	—	Optional API key for authenticated access
`MCP_LOG_LEVEL`	No	`info`	Logging level: `debug`, `info`, `warn`, `error`

Verify Installation

List all available tools:

Terminal

npx w3ledger-mcp-server --list-tools

💡 Example Conversation

Code

You:    "Check my balance"
Claude: [calls check_balance with your public key]
        "Your DAH balance is 1,250.00
         W3SH: 520 (Kindling tier — 10% cashback)
         DAHLOR: 0  |  DAHYM: 0"

You:    "Send a 100 DAH gift card to my friend for coffee"
Claude: [calls create_gift_card — requires your signature]
        "Please sign this transaction with your wallet..."
        [after dual signing]
        "Gift card GC-x8k2 created! Value: 100 DAH
         Your new balance: 1,150.00 DAH"

You:    "Buy a VR session for 35 DAH"
Claude: [calls purchase_product — requires sender + receiver signatures]
        "Transaction confirmed! Order #VR-2026-001
         Spent: 35 DAH  |  New balance: 1,115.00 DAH
         🏅 Cashback: 3.50 W3SH earned (Kindling tier, 10%)"

🏆 W3SH Loyalty Tiers

Purchases automatically earn W3SH cashback based on your tier:

Tier	W3SH Required	Cashback Rate
🌱 Seed	0	0%
🌿 Twig	100	5%
🔥 Kindling	500	10%
🪵 Log	2,000	15%
🏗️ Joist	10,000	20%

🔗 Links

Website: w3ship.com
GitHub: github.com/baskcart/rolledge
W3SH Token: Uniswap CCA Auction

📄 License

MIT — see LICENSE

Read the full README →View source on GitHub →

Related MCP Servers

View all in Finance & Fintech View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

GitHub stars

Stargazers on the source repository.

npm downloads

Package downloads in the last 30 days.

Last commit

6mo ago

Most recent push to the default branch.

Directory activity

2 views

Config copies, upvotes, and views on AllMCPs.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about W3ledger MCP Server

It provides balance checks, gift card creation and claiming, sponsor card creation and claiming, and product purchases.

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/w3ship-w3ledger-mcp-server?style=directory)](https://allmcps.com/mcp/w3ship-w3ledger-mcp-server)

HTML Embed

<a href="https://allmcps.com/mcp/w3ship-w3ledger-mcp-server"><img src="https://allmcps.com/api/badge/w3ship-w3ledger-mcp-server?style=directory" alt="W3ledger MCP Server on AllMCPs" /></a>

Technical Specs & Signals

CategoryFinance & Fintech

PricingFree

3/4 checks healthy over the last 32d

47Quality signal: Fair · 47/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools23/30

Adoption & activity2/15

Community engagement0/10

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 26d ago via OSV.dev · w3ledger-mcp-server (npm)

★ Spotlight Slot

Feature Your MCP Server

Get maximum visibility for your server across our directory, search results, and detail pages.

Spotlight Your Server

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to W3ledger MCP Server →Install in Claude Desktop Install in Cursor Install in VS Code