Looking for a Firefly III MCP server?
Firefly III is powerful open source you administer yourself, and MCP access needs extra wiring. MyFinance MCP is the zero-setup way: hosted, MCP-native, free while in beta.
No, Firefly III has no hosted MCP server.
Not a hosted one. Firefly III has a strong API and community MCP bridges exist, but you need a running Firefly instance, an access token and a bridge process; that is a weekend project, not a connect button. MyFinance MCP is MCP-native and hosted: one URL in Claude or ChatGPT, sign in, start logging. It is open source (MIT) too, so self-hosting remains an option, not a requirement.
The same tracking, just by talking
Plain-language logging
"Spent 24.50 eur on groceries at Lidl" is the whole workflow. Category, currency and date extracted for you.
Receipt photos
Snap a receipt; your AI parses it in the chat and saves the line items. Images never reach the server.
Statement import
Drop a CSV or PDF export: hundreds of rows in one call, duplicates detected, totals reconciled.
Budgets
Monthly caps per category or overall, with live progress. Alerts only when you actually exceed one.
Any currency
Log in whatever you paid in; summaries answer in your base currency with the rate frozen at transaction date.
Open source and yours
MIT-licensed. Full CSV export anytime, instant account deletion, self-hosting supported.
How they stack up
Firefly III
- Self-hosted: server, updates and backups are on you
- MCP access via community bridges you configure
- Powerful but form-heavy interface
- Multi-currency is solid, once you set it all up
MyFinance MCP
- Hosted and MCP-native: connect in a minute
- Say it, snap it or import the statement
- Multi-currency by default, FX frozen at date
- Open source (MIT), self-hosting optional
Firefly III is what dedication to open-source finance looks like, and for power users with a homelab it is a fine choice. This is the same spirit with the setup removed.
The homelab option, minus the homelab
Firefly rewards effort: rules, recurring transactions, piggy banks, all under your control on your own server. But if the honest goal is "know where my money goes without maintaining infrastructure", conversation beats administration. Log by talking, import statements in one message, get SQL-computed answers.
Firefly exports CSV; drop the file into the chat and your history migrates with deduplication and a reconciliation check. MIT license means you can still audit or self-host the code any time.
Connect in under a minute
Works with any MCP client that supports OAuth 2.0 with PKCE. On first connect you sign in with Google or register with an email and password.
- Open Claude and click Customize
- Click Connectors
- Click +, then Add custom connector
- Name it, for example "MyFinance"
- Paste https://myfinance-mcp.com/mcp into Remote MCP server URL
- Leave the OAuth Client ID and Client Secret fields empty
- Click Add, then Connect and sign in
On ChatGPT: Settings, then Apps, then Create app with the same URL using OAuth. Full guide on the home page.
Questions, answered
Does Firefly III have an MCP server?
No official hosted one. Firefly III cannot run inside Claude or ChatGPT directly. MyFinance MCP is built as an MCP server, so it connects with one URL and an OAuth sign-in.
Is MyFinance MCP really open source like Firefly III?
Yes, MIT-licensed with the server, landing and deploy pipeline in the public repository. Use the hosted instance or run your own from the Dockerfile.
Is MyFinance MCP free?
Yes, free while in beta. No ads, no card required. It is open source under MIT, so self-hosting is always an option too.
Does it work with ChatGPT?
Yes. Settings, then Apps, then create a custom app with the server URL using OAuth. It works on every ChatGPT plan, and with Claude, Cursor, Windsurf and any MCP client with OAuth.
Is my data private?
Your data is linked to your account and only you can access it. EU hosting, row-level isolation, no amounts or merchants in server logs, and receipt photos never reach the server at all.
Last updated: July 16, 2026.
Mint, YNAB, Monarch Money, Lunch Money, Copilot Money, Actual Budget, Firefly III, PocketGuard and other product names are trademarks of their respective owners. MyFinance MCP is an independent, open-source project and is not affiliated with or endorsed by them. Comparisons reflect publicly available information at the time of writing and may change.