Guides · Payment details
How do I add IBAN validation to a CrewAI workflow?
Use the Strale CrewAI toolkit to give an agent the iban-validate tool, then describe the check as a task. The tool is free to call.
- CrewAI
- Python
Steps
- Install
crewai-strale. - Create the toolkit with your Strale API key.
- Give a CrewAI agent the
iban-validatetool. - Define a task and kick off the crew.
The solution
Python
# pip install crewai-strale
from crewai import Agent, Task, Crew
from crewai_strale import StraleToolkit
toolkit = StraleToolkit(api_key="sk_live_YOUR_KEY")
tools = [t for t in toolkit.get_tools() if t.name == "iban-validate"]
agent = Agent(
role="Payment Validator",
goal="Validate IBANs before a payment is made",
backstory="You check payment details and report exactly what the validation returned.",
tools=tools,
llm="gpt-4o",
)
task = Task(
description="Validate IBAN: DE89370400440532013000",
expected_output="The validation result with the bank code and country",
agent=agent,
)
crew = Crew(agents=[agent], tasks=[task])
result = crew.kickoff()
print(result)How it works
CrewAI organises agents into crews that work on tasks. The Strale toolkit wraps each tool as a CrewAI tool named after its slug, with a description and the price, so the agent can tell when to use iban-validate. You can mix Strale tools with other CrewAI tools in one agent.
The tool checks an IBAN's structure, country code and check digits. It does not confirm that the account exists or is open.
Tools in this guide
| Tool | Price per call |
|---|---|
| IBAN Validation | Free |
| SWIFT/BIC Validation | €0.03 |
| SEPA XML Validation | €0.02 |
| VAT Number Format Check | €0.02 |