FindBSB
Free Australian BSB lookup & API — no auth, no signup
Start new thread
FindBSB

FindBSB - Free Australian BSB lookup & API — no auth, no signup

by•
FindBSB is a free Australian BSB lookup tool and API. Instantly find bank name, branch address and state for any BSB code. 18,000+ BSBs updated monthly from AusPayNet. Built for Australians making bank transfers and developers building payment systems. Free JSON API — no auth required. Bulk validate up to 500 BSBs per request. Also on RapidAPI.

Add a comment

Replies

Best
FindBSB
Maker
📌
Hey PH! 👋 I built FindBSB after getting frustrated with the lack of a decent BSB lookup API in Australia. Every time I needed to validate BSBs in a payment form I had to either scrape a website or parse AusPayNet's CSV manually. So I built a free JSON API — no auth, no signup, just HTTP. Single lookup, bulk validation up to 500 BSBs, filter by bank/state/suburb. It's been running for a few weeks and I've just added it to RapidAPI too. Happy to answer any questions and would love feedback from devs building Australian payment systems!
FindBSB
Maker

For anyone wanting to test it right now — no setup needed, just run this in your terminal:

curl https://findbsb.com.au/api/bsb/062-000

Or hit the live playground at findbsb.com.au/api

Would love to know if you're building anything in the Australian payments space — always keen to hear what BSB-related problems people are actually running into.