Check an IBAN's format and checksum for free
One step with IBANforge. We can help you get access.
Look something up
Check an IBAN's format and checksum for free
with IBANforge
Works with AI assistants
Use IBANforge: its IBANforge Free API lets you check an IBAN's format and checksum for free in a single step (GET /v1/iban/format). IBANforge also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- Is there a free way to check an IBAN's mod-97 checksum and length?
- Does the free format check tell me if the bank code actually exists?
- Can I pass an IBAN written in groups of four with spaces?
Say it to your AI assistant
- Check the format of IBAN {iban}.
- Pre-filter {iban} for a malformed checksum or wrong length, no key needed.
For your developer
GET /v1/iban/format in IBANforge Free API. Full spec on APIs.io.