fintable-mcp 0.1.0

Unofficial MCP server for fintable.io — manage financial categories, rules, and transactions through AI assistants

fintable-mcp

An unofficial MCP (Model Context Protocol) server for fintable.io, enabling AI assistants like Claude to manage your financial categories, rules, and transactions directly — no more clicking through multi-step wizards.

Note: This is a community project, not officially supported by fintable.io. It works by communicating with Fintable's Laravel Livewire 3 backend using your browser session. If you're the Fintable developer and would like to collaborate on an official MCP server or public API, please open an issue — we'd love to work with you! 🤝

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What it does

Once installed, you can ask Claude things like:

• "Create these expense categories: Office Supplies, Shipping, Packaging, Equipment Rental, Software Subscriptions"
• "Create rules: 'Staples' → Office Supplies, 'UPS' → Shipping, 'USPS' → Shipping"
• "Run all rules to categorize my transactions"
• "What's my current account balance at Ally Bank?"
• "List all my categorization rules"

No more going through a 3-page wizard 20 times to set up 20 categories. Just tell Claude what you need.

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Tools provided

Read Operations

Tool	Description
fintable_list_accounts	List all connected bank accounts with balances
fintable_list_categories	List all transaction categories
fintable_list_rules	List categorization rules (with pagination)
fintable_list_transactions	List/search transactions with optional filtering

Write Operations

Tool	Description
fintable_create_category	Create a single category
fintable_create_bulk_categories	Create up to 50 categories at once
fintable_create_rule	Create a categorization rule
fintable_create_bulk_rules	Create multiple rules at once
fintable_run_all_rules	Execute all rules on uncategorized transactions
fintable_delete_rule	Delete a categorization rule
fintable_sync_accounts	Trigger bank account sync via Plaid
fintable_resync_spreadsheets	Push updates to Airtable/Google Sheets

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Installation

Prerequisites

• Python 3.10+
• A fintable.io account with connected bank accounts
• Claude Desktop (or any MCP-compatible client — Cherry Studio, etc.)

1. Clone this repo

git clone https://github.com/jasoncbraatz/fintable-mcp.git
cd fintable-mcp

2. Install dependencies

pip install -r requirements.txt

Or with uv (faster):

uv pip install -r requirements.txt

3. Get your session cookies

1. Open Chrome and go to fintable.io — make sure you're logged in
2. Open DevTools (F12 or Cmd+Option+I)
3. Go to the Network tab
4. Click on any request to fintable.io
5. Find the Cookie header in Request Headers
6. Copy the entire cookie string

4. Configure Claude Desktop

Add the following to your Claude Desktop config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "fintable": {
      "command": "python",
      "args": ["/absolute/path/to/fintable-mcp/fintable_mcp.py"],
      "env": {
        "FINTABLE_COOKIES": "your_full_cookie_string_here"
      }
    }
  }
}

💡 Replace /absolute/path/to/fintable-mcp/fintable_mcp.py with the actual path where you cloned this repo.

5. Restart Claude Desktop

After saving the config, fully quit and relaunch Claude Desktop. The fintable tools will appear in Claude's tool list.

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Authentication

This server authenticates using your fintable.io browser session cookies — the same cookies your browser uses when you're logged in. Sessions are kept in memory only while the server is running.

Your credentials are never stored to disk — they live only in the environment variable you configure above.

Session Expiration

Your browser cookies will eventually expire. When they do, the server will return an authentication error. Just re-export your cookies from Chrome and update the FINTABLE_COOKIES environment variable.

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How it works (for the curious / developers)

Fintable.io is a Laravel application using Livewire 3 + Alpine.js for its frontend — there's no public REST API. This MCP server:

1. Authenticates using your browser session cookies (CSRF token + session cookie)
2. Fetches pages to extract Livewire component snapshots from wire:snapshot HTML attributes
3. Makes Livewire protocol calls — POST requests to the /livewire-{hash}/update endpoint with component snapshots, method calls, and property updates
4. Parses HTML responses to extract structured data (accounts, categories, rules, transactions)

The Livewire update path includes a hash (e.g., /livewire-5c7ce5a8/update) that can change when the app is redeployed. The server auto-discovers this path from the data-update-uri HTML attribute on each page load, so it stays resilient across deployments.

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Known Issues & Limitations

Livewire Hash Changes

The Livewire update endpoint includes a build hash (e.g., /livewire-5c7ce5a8/update) that changes on each deployment. The server auto-discovers this on every page fetch, but if Fintable significantly restructures their Livewire components or changes component names, things may break. This is inherent to working without an official API.

HTML Parsing Fragility

Since there's no JSON API, read operations depend on parsing HTML structure. If Fintable redesigns their UI layout, the parsing logic may need updating. This is the biggest maintenance burden of the current approach.

The Path Forward: JSON Endpoints

The ideal solution is for Fintable to expose lightweight JSON API endpoints. This would:

• Eliminate the fragile HTML parsing
• Remove the Livewire hash dependency
• Enable more reliable integrations
• Open the door for other community tools and integrations
• Be a great selling point for the product (MCP-ready financial tools are a differentiator!)

If you're the Fintable developer reading this — even a handful of authenticated JSON endpoints for categories, rules, and transactions would make this server rock-solid and dramatically easier to maintain. Happy to collaborate on the design. 🚀

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Security Model

This server runs locally on your machine as a stdio subprocess of your MCP client. It:

• Never exposes a network port
• Never stores credentials to disk
• Only communicates with fintable.io using your existing browser session
• Runs as a single-user, single-client process

Your session cookies are passed via environment variable and kept in memory only while the server is running.

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Contributing

PRs welcome! Some ideas for future improvements:

• Support for transaction date range filtering
• Category group management (create/rename groups)
• Rule priority reordering
• Export categories/rules as JSON for backup
• Support for multiple Fintable accounts

Note on deletions: Category deletion is intentionally not supported — that's a destructive action best done through the Fintable web UI where you can see the full impact. A little friction before deleting things is a feature, not a bug.

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Disclaimer

This project is not affiliated with, endorsed by, or officially supported by fintable.io. It was built by reverse-engineering the Livewire 3 frontend protocol (with the developer's blessing). Use at your own risk — the underlying Livewire protocol may change without notice.

License

MIT