Worldwide Visa Fee API Research

I run visafee.com and now need a reliable, budget-friendly API that returns nothing except the current visa fee when a user supplies their nationality and destination. Coverage must be worldwide and the data must refresh in real time or as close to it as the market allows. I am flexible on the response format—JSON, XML, or even CSV—so long as the endpoint is stable and well-documented.

Your task is simple yet precise: scout the market, shortlist the most cost-effective options, and hand over full technical details so I can plug the service straight into my site.

Deliverables:
• API name and provider URL
• Sample request/response showing only the visa fee output
• Pricing tiers with emphasis on the most economical plan
• Notes on update frequency to confirm real-time capability
• Any sign-up links or keys needed for immediate testing

I’ll release the 10 K INR payment once I can query the recommended API from my server and see accurate fee data flowing through.