Fact Sandbox • Interactive API Playground (500+ Endpoints)

Fact Sandbox — The Live API Playground to Test & Integrate 500+ Enterprise Endpoints

Simulate live requests, test edge cases, and inspect response schemas across 500+ verification, tax, banking, corporate, and legal APIs. Get instant sandbox credentials, test with pre-loaded mock balance, and integrate in minutes before going live.

Explore 500+ Endpoints ↓
⚡ <120ms P95 Response
🔒 256-Bit Key Authentication
✅ 99.9% Production SLA
api.fact-byte.com/v2/sandbox
Fact Admin • All Clients
Total APIs
500+
Active sandbox endpoints
Total Hits
20.8L+
All-time requests
Available Credit
₹ Wallet
Pre-loaded balance
APIs w/ Quota
500+ / 500+
Quota assigned
API Usage Statistics (500+ Endpoints Live Telemetry)
2,082,642 Requests
NewGST
gstadv
ProxyAPI
BankVal
Aadhaar
CINMaster
Vahan
NewGSTMasterInfo: 14,54,543 gstadvance: 3,94,226 BankAccountValid: 46,815 AadhaarToPan: 28,807
500+
Active API Endpoints
GST, MCA, Banking, KYC & Legal
20.8L+
Total API Hits Served
Battle-tested in high-load BFSI systems
<120ms
Median Latency
High-speed cached registry pipeline
100%
Direct Backend Access
Native REST APIs with webhook support
Interactive API Directory

Explore 500+ Production-Ready Endpoints

Browse our comprehensive catalog of 500+ endpoints. Filter by verification domain, inspect response parameters, and test with live sandbox keys.

Developer First

Zero-Friction Sandbox Integration in Minutes

Authenticate your requests with your dedicated Client-ID and 256-bit Secret-Key generated for your sandbox account. Standardized JSON responses make integration effortless across all 500+ endpoints.

✓ Header-Based Auth: Pass Client-ID & Secret-Key headers on HTTPS calls across 500+ endpoints.
✓ Interactive Sandbox Testing: Simulate request payloads and validate edge cases before deploying code.
✓ Webhooks & Retries: Automated event notifications for asynchronous entity audits. 
curl --location 'https://api.fact-byte.com/v2/NewGSTMasterInfo?gstin=24AABCU9603R1ZM' \
--header 'Client-ID: 4734' \
--header 'Secret-Key: 950283eb2f2af4bf5dba88194c7302f1' \
--header 'Accept: application/json'
Platform Architecture

Enterprise-Grade Controls Built In

Fact Sandbox combines raw backend API throughput with modern administrative governance, security, and quota management.

🔑
Instant API Key Provisioning
Generate production and sandbox API credentials on-demand with one-click secret copying and granular client-level assignment.
⚙
Interactive Sandbox Playground
Test parameters, simulate registry responses, inspect JSON schemas, and troubleshoot errors before committing to production.
📈
Granular Quota & Pricing Control
Transparent per-API Base Price and Sell Price tracking, configurable wallet balances, and automatic credit threshold alerts.
👁
Real-Time Usage Telemetry
Detailed hit counters, client-by-client consumption charts, and compliance-ready audit trails for regulatory compliance.
Deploy In Minutes

Ready to Test FACTBYTE APIs in the Sandbox?

Get instant sandbox access to our 500+ production endpoints with dedicated credentials and test credits.

Explore 500+ Endpoints ↓