Visa A2A API

Enver
Occasional Visitor

Visa A2A API

Hi Team,

 

I have started looking into Visa A2A API and as it is my first time to check out your API I started with the HelloWorld example code in C# and got that working but when I now try to use the Visa A2A API then I get the below response

Response Body: 
{"responseStatus":{"status":400,"code":"9125","severity":"ERROR","message":"Expected input credential was not present","info":""}}

So calling "https://sandbox.api.visa.com/vdp/helloworld" I get back HTTP 200 and then I replace the URL with "https://sandbox.api.visa.com/visaa2a/v1/financial-institutions" using the same code then I get HTTP 400 and the message above.