MCP Server

52 tools for Claude, Cursor, and MCP-compatible AI assistants. Zero-code payment integration.

Quick Setup

Bootstrap (Recommended)

Generate a local config scaffold first:

npx @sardis/mcp-server init --mode simulated

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "sardis": {
      "command": "npx",
      "args": ["@sardis/mcp-server", "start", "--env-file", ".env.sardis"],
      "env": {
        "SARDIS_API_KEY": "sk_...",
        "SARDIS_API_URL": "https://api.sardis.sh"
      }
    }
  }
}

Cursor

Add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "sardis": {
      "command": "npx",
      "args": ["@sardis/mcp-server", "start", "--env-file", ".env.sardis"],
      "env": {
        "SARDIS_API_KEY": "sk_..."
      }
    }
  }
}

Wallet Tools (8)

Tool	Description
`sardis_create_wallet`	Create new MPC wallet with optional policy
`sardis_get_wallet`	Get wallet details by ID
`sardis_list_wallets`	List all wallets for current user
`sardis_get_balance`	Get wallet balance for the selected rail/token context
`sardis_get_address`	Get deposit address for specific chain
`sardis_update_policy`	Update wallet spending policy
`sardis_check_policy`	Validate transaction against policy
`sardis_archive_wallet`	Archive inactive wallet

Payment Tools (7)

Tool	Description
`sardis_pay`	Execute payment from wallet
`sardis_pay_invoice`	Pay structured invoice with line items
`sardis_request_approval`	Request human approval for large transaction
`sardis_list_transactions`	List transaction history
`sardis_get_transaction`	Get transaction details
`sardis_estimate_gas`	Estimate transaction gas fees
`sardis_get_tx_status`	Check on-chain transaction status

Treasury Tools (11)

Tool	Description
`sardis_sync_treasury_account_holder`	Sync provider financial accounts
`sardis_list_financial_accounts`	List ISSUING/OPERATING accounts
`sardis_link_external_bank_account`	Create external bank account record
`sardis_verify_micro_deposits`	Verify micro-deposit amounts
`sardis_fund_wallet`	Create ACH collection payment
`sardis_withdraw_to_bank`	Create ACH withdrawal payment
`sardis_get_funding_status`	Get payment status by token
`sardis_get_withdrawal_status`	Get withdrawal status by token
`sardis_get_treasury_balances`	List treasury balance snapshots

Virtual Card Tools (5)

Tool	Description
`sardis_create_card`	Issue virtual card from wallet
`sardis_list_cards`	List wallet's virtual cards
`sardis_get_card`	Get card details (PAN, expiry)
`sardis_freeze_card`	Temporarily freeze card
`sardis_cancel_card`	Permanently cancel card

Hold Tools (5)

Tool	Description
`sardis_create_hold`	Reserve funds for future capture
`sardis_capture_hold`	Capture held funds (full or partial)
`sardis_release_hold`	Release/void a hold
`sardis_list_holds`	List active holds
`sardis_extend_hold`	Extend hold expiration

UCP Commerce Tools (6)

Tool	Description
`sardis_ucp_discover`	Discover products from merchant
`sardis_create_checkout`	Start checkout session
`sardis_update_checkout`	Modify cart items
`sardis_complete_checkout`	Complete and pay
`sardis_get_order`	Get order details
`sardis_track_fulfillment`	Track order shipment

A2A Agent Tools (4)

Tool	Description
`sardis_discover_agent`	Discover agent via A2A protocol
`sardis_get_agent_card`	Get agent's capability card
`sardis_send_a2a_message`	Send message to another agent
`sardis_request_payment`	Request payment from agent

Example: Fund Wallet from Bank

User: Fund my wallet with $500 from my bank account

Claude: I'll fund your wallet with $500. Let me check your linked
financial accounts first.

[Uses sardis_list_financial_accounts]

I found your ISSUING account and linked external bank account.

[Uses sardis_fund_wallet]

Done! Funding initiated:
- Amount: $500.00 USD
- Method: Bank Transfer (ACH)
- Expected arrival: 1-2 business days
- Funding ID: fund_abc123

Example: Pay with Virtual Card

User: Create a virtual card to pay $50 for GitHub Copilot

Claude: I'll create a virtual card for GitHub Copilot.

[Uses sardis_create_card]

Virtual card created:
- Card: 4242 **** **** 1234
- Expiry: 01/27
- CVV: 456
- Limit: $50.00
- Merchant lock: github.com

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