The Developer API Marketplace with True Pay-As-You-Go Freedom
Recharge your wallet, subscribe to any API with 1-click, and start making calls. No rigid monthly plans, zero commitments — each API has transparent per-call pricing.
High-availability gateway
Lightning fast proxy
Set per API by publishers
100 free test credits
How FioApi Works in 3 Steps
Start calling and integrating APIs in minutes with zero friction.
1. Add Funds to Wallet
Recharge your prepaid wallet starting from $5 using Instant UPI (QR code & automated UTR) or Cards. Balance never expires.
2. Subscribe in 1-Click
Browse the Marketplace and subscribe for free. Every subscription receives 100 monthly test credits to test endpoints before using balance.
3. Integrate & Call
Pass your master header x-api-key with GET/POST methods or JSON body as configured by the API.
Integrate Any API in Under 60 Seconds
Standardized REST endpoints, custom GET/POST methods, and instant JSON responses.
curl -X POST "https://api.fioapi.com/api/v1/terabox/stream" \
-H "x-api-key: fio_live_demo_9824018240" \
-H "Content-Type: application/json" \
-d '{
"url": "https://1024terabox.com/s/1jV4tzRwAj_9sTwW7b30sXQ"
}'x-api-key{
"status": "success",
"code": 200,
"data": {
"download_url": "https://accelerator.fioapi.com/d/tera.mp4"
}
}application/jsonExplore API Details & Playground →Featured Marketplace APIs
Battle-tested APIs ready for high-concurrency production apps.
Frequently Asked Questions
Everything you need to know about Pay-As-You-Go pricing, subscriptions, and security.