Synci is a comprehensive integration platform for your personal financial data. As stated on our landing page, Synci lets you fetch, transform, and transfer your personal banking data, anywhere.

Put simply, with Synci you connect your banks, brokerages and crypto exchanges, then send that data wherever you need it: budgeting apps like YNAB and Lunch Money, a Google Sheet or a Notion database, or AI assistants, apps, webhooks and the API, which read it directly.

Core concepts

A brief overview of the core concepts that make up the Synci platform.

Banks, brokerages and crypto exchanges

Everything starts with a connection to the institution that holds your accounts. In the sidebar, you'll find these under Sources: Banks, Brokerages and Crypto. Synci supports 2,900+ banks across 32 countries in Europe and New Zealand, 31 brokerages, and the crypto exchanges Binance, Coinbase and Kraken. There are also free demo banks, so you can try everything out with generated data.

We work with trusted connectivity providers to securely add your Accounts to Synci with read-only access: GoCardless for banks in Europe and the UK, Akahu for banks in New Zealand, and SnapTrade for brokerages and crypto exchanges. We will never need (or want) your login credentials. Once connected, your accounts sync automatically, every 6 hours by default (Pro plans can sync as often as every 2 hours).

See the full lists of supported banks, brokerages and crypto exchanges, or read Supported institutions.

Destinations and integrations

Destinations are where Synci sends your data. YNAB, Lunch Money, Google Sheets and Notion receive your transactions and balances through a linked account (see below). Other integrations get direct access instead and read from Synci when they need to: AI assistants (over MCP), Actual Budget and other SimpleFIN apps, webhooks, the API, Zapier and Raycast.

In the sidebar, the Integrations group shows the integrations you've pinned, and All integrations lists everything Synci supports. You can also see a full list of supported destinations here.

Adding destinations and integrations

Linked accounts

A linked account is how you connect one of your financial accounts to a destination, for example a bank account to a YNAB budget account or a Google Sheet. You'll find all of them under Linked Accounts in the sidebar. In the API, and in some of our articles, they're called transfer links.

Each link can send Transactions only, Transactions & balance, or Balance only. Once a link is set up, Synci transfers new data to your destination after every account sync, which happens every 6 hours by default. Brokerage and crypto data usually runs about a day behind. You can create as many links as you like, which means a single account can be linked to multiple destinations.

Linking accounts to destinations

Linked accounts: Send data to destinations

Field mapping

Banks don't all put the same information in the same place. With field mapping, you choose which bank fields Synci uses for each transaction's payee, description and date, with fallbacks for when a field is empty. You'll see this in the Transaction preview step when you set up a new connection, and you can change it any time under Map fields in the account's settings. No rules needed.

Rules

With our easy to use rule engine, you can automatically transform your transaction data to suit your needs, for example by setting a field, cleaning up text with a regular expression, or stopping a transaction from being transferred. Rules come in two kinds:

• Change my data in Synci: attached to a bank account, these change the transactions stored in Synci.

• Only on the way out: these only change what leaves Synci. Attach one to a linked account to shape what that destination receives, or to a bank account to shape what the API, webhooks, SimpleFIN apps and AI assistants see.

Rules are available on paid plans, and can't be attached to brokerage or crypto accounts.

Creating rules

Rule configuration