Finance & Billing
Open Banking
Banking APIs, account aggregation, and financial data access.
Best Open Banking tools by public signals
These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.
Use Case Rankings
Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.
| # | Tool | Health | Shipping | Openness | Stars | Score | Status |
|---|---|---|---|---|---|---|---|
| 01 | FinAegis Core Banking Open-source core banking platform built with Laravel, event sourcing, CQRS, and GraphQL. | 86 | 95 | OSI-approved OSS | 164 | 93 | Active |
| 02 | OpenBankProject An open source RESTful API platform for banks that supports Open Banking, XS2A, PSD2 and Open Finance through access to accounts, transactions, counterparties, payments, entitlements and metadata - plus a host of internal banking and management APIs. | 71 | 66 | License unknown | 1.7k | 75 | Warning |
| 03 | Shorted Platform providing visibility into short positions on the Australian Stock Exchange. | 57 | 63 | License unknown | 2 | 68 | Warning |
| 04 | CrystalBank Open-source core-banking system written in Crystal. | 59 | 46 | OSI-approved OSS | 8 | 62 | Warning |
| 05 | Railzway Self-hosted billing engine for usage-based SaaS — metering, subscriptions, invoicing | 56 | 11 | License unknown | 3 | 48 | Warning |