BankSync MCP Server

Talk to your bank data. Connect AI agents to real bank accounts — transactions, balances, investments, and loans — across 15,000+ financial institutions.

BankSync MCP is an open Model Context Protocol server with 28 tools that gives Claude, ChatGPT, Cursor, VS Code, and other AI agents secure, read-write access to your financial data. Sync to Notion, Google Sheets, and Airtable — all through conversation.

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Quick Start

Get your API key at banksync.io/developers. BankSync runs as a remote MCP server — no install required:

URL:       https://mcp.banksync.io
Transport: Streamable HTTP
Header:    X-API-Key: your-key

Setup

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

{
  "mcpServers": {
    "banksync": {
      "type": "http",
      "url": "https://mcp.banksync.io",
      "headers": {
        "X-API-Key": "your-key"
      }
    }
  }
}

claude mcp add --transport http banksync https://mcp.banksync.io \
  --header "X-API-Key: your-key"

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "banksync": {
      "url": "https://mcp.banksync.io",
      "headers": {
        "X-API-Key": "your-key"
      }
    }
  }
}

Add to .vscode/mcp.json:

{
  "servers": {
    "banksync": {
      "type": "http",
      "url": "https://mcp.banksync.io",
      "headers": {
        "X-API-Key": "your-key"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "banksync": {
      "serverUrl": "https://mcp.banksync.io",
      "headers": {
        "X-API-Key": "your-key"
      }
    }
  }
}

For clients that don't support remote HTTP servers, use the npm package as a local bridge:

npx -y @banksync/mcp              # Node.js
pip install banksync-mcp && banksync-mcp  # Python

Set BANKSYNC_API_KEY=your-key as an environment variable. The package bridges stdio to https://mcp.banksync.io automatically.

Example config (any stdio client):

{
  "mcpServers": {
    "banksync": {
      "command": "npx",
      "args": ["-y", "@banksync/mcp"],
      "env": {
        "BANKSYNC_API_KEY": "your-key"
      }
    }
  }
}

Setup guides for all clients: banksync.io/developers/mcp-setup

What You Can Do

Ask your AI agent questions like:

• "What were my biggest expenses last month?"
• "How much do I have across all my accounts?"
• "Show my investment portfolio performance"
• "Sync my transactions to Notion every week"
• "What's my outstanding loan balance?"

Tools

28 tools across 7 categories. Full reference with parameters and examples: docs/TOOLS.md

Category	Tools	What They Do
Discovery	get_data_type_schema, list_feed_sources	Discover available fields and feed source types
Workspace	list_workspaces, get_workspace, list_integrations, delete_integration	Manage workspaces and connected destinations
Banks	list_banks, get_bank, create_bank_link, connect_bank, delete_bank	Connect and manage bank connections
Accounts	list_accounts, get_account	Fetch live account data from institutions
Financial Data	get_transactions, get_balance, get_holdings, get_trades, get_loan	Query transactions, balances, investments, loans
Feeds	list_feeds, get_feed, create_feed, update_feed, validate_feed, delete_feed	Build automated data pipelines
Jobs	list_jobs, get_job, trigger_sync, cancel_job	Run and monitor sync jobs

How It Works

AI Agent (Claude, ChatGPT, Cursor, ...)
    ↓ Streamable HTTP
mcp.banksync.io (Cloudflare Workers)
    ↓ Bank APIs
Plaid (US/UK/CA) · Basiq (AU/NZ)
    ↓ Sync
Notion · Google Sheets · Airtable

See docs/ARCHITECTURE.md for details.

Typical Workflow

1. list_workspaces          → find your workspace
2. list_banks               → see connected banks
3. list_accounts            → discover accounts
4. get_transactions         → fetch financial data
5. list_integrations        → find your Notion/Sheets connection
6. get_data_type_schema     → discover available field mappings
7. create_feed              → set up an automated pipeline
8. trigger_sync             → run it

Data Sources

Provider	Coverage	Data Types
Plaid	US, UK, Canada — 12,000+ institutions	Transactions, balances, investments, loans
Basiq	Australia, New Zealand — 3,000+ institutions	Transactions, balances
Email extraction	Global	AI-extracted structured data from forwarded emails
File upload	Global	AI-extracted data from PDFs, images, documents

Sync Destinations

Destination	Capabilities
Notion	Sync to Notion databases
Google Sheets	Sync to spreadsheets (row or column direction)
Airtable	Sync to Airtable tables

Security

• API key authentication — keys scoped per workspace
• All data encrypted in transit (TLS)
• Role-based permissions (owner/admin/editor/viewer)
• BankSync never stores banking credentials — delegated to Plaid/Basiq
• Stateless MCP transport — no session data persisted

See SECURITY.md for our security policy and vulnerability reporting.

Debugging

Use the MCP Inspector to test and debug the server:

BANKSYNC_API_KEY=your-key npx @modelcontextprotocol/inspector npx -y @banksync/mcp

Or connect the inspector directly to the remote server:

npx @modelcontextprotocol/inspector --url https://mcp.banksync.io --header "X-API-Key: your-key"

Documentation

Doc	Description
docs/TOOLS.md	Complete tools reference with parameters and examples
docs/ARCHITECTURE.md	Architecture, transport, and deployment details
docs/AGENTS.md	Guide for AI agents: best practices, prompt patterns, workflows
CLAUDE.md	Context for AI coding assistants working on this repo
SECURITY.md	Security policy and vulnerability reporting
banksync.io/developers	Full API documentation
banksync.io/developers/mcp-setup	Per-client setup guides

Privacy Policy

BankSync's privacy policy is available at banksync.io/privacy. BankSync never stores banking credentials — authentication is delegated to Plaid and Basiq. API keys are scoped per workspace and all data is encrypted in transit.

License

MIT — see LICENSE.