REST access to 11,000+ U.S. banks: transactions, statements and check images.
Build directly on the same data pipeline that powers Ledgersync. Bearer-token auth, JSON payloads, webhooks and cursor pagination.
Get a working bank connection running in sandbox: create a client, connect the built-in test bank, and watch transactions land in your database with a webhook firing on every refresh.
The Ledgersync API is an Open Banking API that works alongside your existing aggregator or on its own. Connect to 11,000+ U.S. financial institutions and pull transactions, balances, PDF statements, check images and OCR results into your own product or internal tools.
Built with a strong focus on business banking and on our Mastercard and MX Open Banking partnerships, the Ledgersync API gives you original PDF statements from 2,500+ institutions and one consistent JSON format whatever the bank.
Intelligent routing
Ledgersync uses Mastercard (Finicity), MX and our own connections, with PDF upload as a fallback.
Our platform routes each institution to the best data source server-side, so you don't choose or manage aggregators yourself. The connection ID shows which source answered.
Why developers choose the Ledgersync API
Everything your fintech, accounting product or internal tool needs in one REST API.
- 11,000+ U.S. banks through Mastercard (Finicity), MX and Ledgersync's own connections, with a strong focus on business banking
- Transactions and balances, up to 24 months of history depending on the bank
- Original PDF bank statements from 2,500+ banks
- Cancelled check images on Ledgersync's own bank connections (front of check)
- Upload any bank statement PDF and get structured transactions back through a real OCR pass
- On-demand refresh on every connection
- Request new banks: Ledgersync implements them for you
- Direct developer support from our team
Simple, transparent pricing
Month-to-month, no long-term commitment.
- Transactional data: $2 per end user (up to 7 bank logins)
- Statements: $20 per end user (up to 7 bank logins)
- Minimum $1,000 per month
Vibe-code your integration
Drop the Ledgersync docs link into ChatGPT, Claude or your AI coding assistant and let it build your bank-data integration for you. No deep API expertise required.
- AI reads the docs and writes the code
- Test everything in sandbox first
- Request production access when you're ready; we approve it and move you from sandbox to live
Ledgersync AI · MCP
Connect ChatGPT, Claude or GrokBot straight to the bank data in Ledgersync. Your AI reads the real transactions behind a question and takes the next step inside the conversation you're already having: sending a client a connect or fix link, checking a connection, or pulling statements.
Connect to AI tools such as: ChatGPT, Claude, GrokBot
- Ask in plain English, get answers from real transactions
- Client connect and fix links sent by the assistant
- Works inside your Ledgersync account, with your permissions; anything that changes the books waits for your approval
Full documentation
Complete REST API reference, authentication, webhook events and example payloads in our developer docs:
One API for clients, connections, accounts, transactions, statements and checks.
Authenticate with a bearer token, send standard JSON, and paginate with cursors. Full reference in the developer docs.
| Method | Path | Description |
|---|---|---|
| POST | /v3/clients | Create a client with your own external_id |
| POST | /v3/clients/{id}/connections | Start a bank connection; returns an operation_id and a widget_url |
| GET | /v3/accounts?client_id=... | Bank, card and loan accounts for a client |
| GET | Transactions (see reference) | Pending and posted transactions for an account |
| GET | Statements (see reference) | List statements and download the original PDF |
| GET | /v3/accounts/{account_id}/checks | List cancelled check images for an account (front of check; Ledgersync's own connections) |
| POST | /v3/statements/extract | Upload a PDF statement (up to 30 MB) and get structured transactions back as JSON |
| GET | /v3/operations/{operation_id} | Check the status and result of an async job |
Up and running in a few lines.
Copy-paste examples in cURL. The same requests work in any language with an HTTP client; no SDK required.
curl "https://api-sandbox.ledgersyncappv2.com/v3/accounts?client_id=cli_123" \
-H "Authorization: Bearer $LEDGERSYNC_API_KEY"curl https://api-sandbox.ledgersyncappv2.com/v3/statements/extract \
-H "Authorization: Bearer $LEDGERSYNC_API_KEY" \
-F "file=@./april-statement.pdf"
# Returns 202 with an operation_id. Poll GET /v3/operations/{operation_id} for the extracted transactions.curl https://api-sandbox.ledgersyncappv2.com/v3/accounts/acc_123/checks/chk_7421/download \
-H "Authorization: Bearer $LEDGERSYNC_API_KEY" \
-o check-7421.jpgEvents when your connections change.
Subscribe to webhooks, rotate secrets and send test events from the API.
Connection activeFires when a new bank connection is ready
Connection failedFires when a connection needs attention, such as client re-authentication
Connection refreshedFires when new data has been fetched
An Open Banking API built for accountants, fintechs and product teams.
REST + JSON
Bearer-token auth, one error format, cursor-paginated lists
One API for your data
Transactions, balances, statements, statement OCR and check images
Webhooks
Subscriptions, secret rotation and test events
Sandbox and live keys
Test against the built-in FinBank sandbox bank (no MFA) before you go live
Bank-request workflow
Need a bank we don't yet support? Submit a request and we implement it
Direct developer support
Email our team directly
Want to learn more? Schedule a call with our team to walk through implementation.
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