Synth MCP

Synth MCP is an MCP server that connects AI assistants like Claude Desktop to the Synth Finance API. Designed for financial analysts, developers, and personal finance users, the server provides direct access to real-time and historical financial data through natural language interfaces. It enables users to clean and interpret ambiguous transaction descriptions from bank feeds, converting cryptic strings into clear merchant names with categories and logos. Additionally, the server exposes tools to query real-time foreign exchange rates updated every minute, historical currency valuations, and stock ticker searches. Users can pull historical open-high-low-close price data for equities across custom date ranges and review SEC Form 4 insider trading records to monitor executive transactions. It also includes utility functions to track Synth account details and remaining API credit balances. The server supports remote connections via Server-Sent Events or can be self-hosted via Docker, Railway, or Heroku, keeping authentication secure by passing individual user API tokens in client headers.

Category: Finance, Crypto & Payments

Tags: currency, finance, insider-trading, market data, stocks

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How to install and configure Synth MCP

1. Obtain a Synth API key from Synth Finance. 2. Open your Claude Desktop configuration file at ~/Library/Application Support/Claude/claude_desktop_config.json on macOS or %APPDATA%\Claude\claude_desktop_config.json on Windows. 3. Add the remote SSE server configuration to the mcpServers block: json { "mcpServers": { "synth": { "url": "https://mcp.synthfinance.com/sse", "transport": "sse", "headers": { "Authorization": "Bearer YOUR_SYNTH_API_KEY" } } } } 4. Replace YOUR_SYNTH_API_KEY with your actual API key and restart Claude Desktop.

What you can do with Synth MCP

• Decode cryptic bank and credit card statement strings into clear merchant names, locations, and expense categories. - Convert currencies and retrieve live foreign exchange rates updated every 60 seconds across major pairs. - Retrieve historical currency conversion rates for specific past dates to support tax filings or accounting. - Search for stock symbols and extract historical open, high, low, and close equity prices across custom date ranges. - Monitor executive sentiment and company insider purchases by reviewing recent SEC Form 4 filings.

Key facts

• https://github.com/maybe-finance/synth-mcp
• Finance, Crypto & Payments
• currency, finance, insider-trading, market data, stocks

Part of MCP Servers

How do I install Synth MCP?

You can connect Claude Desktop to Synth MCP by adding the hosted SSE endpoint https://mcp.synthfinance.com/sse to your claude_desktop_config.json file along with your Synth API key in the authorization header. Alternatively, you can self-host the repository using Docker, Railway, or Heroku.

What can Synth MCP do?

Synth MCP provides tools to enrich bank transaction descriptions, fetch live and historical currency exchange rates, search equity tickers, retrieve historical stock OHLC pricing data, monitor SEC Form 4 insider trading filings, and check your Synth API account usage.

Which MCP clients work with Synth MCP?

Synth MCP works with Claude Desktop and any client that supports the Model Context Protocol using Server-Sent Events transport. It requires an HTTP client configured to send an authorization header containing your Synth API token.

Is Synth MCP open source?

Yes, Synth MCP is open-source software distributed under the ISC license. The complete source code, Docker configuration, and deployment scripts are publicly accessible in the project repository on GitHub.