Sandbox

What Sandbox does

Sandbox Financial Technologies Private Limited is an India-based tax API platform founded in 2021 and headquartered in Ahmedabad, operating as an authorized Technology Solution Provider (TSP). The company provides 200+ REST APIs covering the full lifecycle of Indian tax and identity compliance — KYC (Aadhaar, PAN, bank account, MCA, DigiLocker, EntityLocker), Income Tax calculations and filing, TDS deductions/reconciliation/return filing/Form 16 generation, and GST e-invoicing, e-way bills, return filing, and reconciliation. The platform maintains real-time integrations with government data sources including GSTN, UIDAI, MCA, Income Tax Department, DigiLocker, NIC e-Invoice portals, and NSDL/Protean. The technology stack uses job-based asynchronous workflows with webhooks, standardized REST contracts, SDKs in Java and Node.js (plus Flutter for mobile), JWT-based authentication, and a self-serve Console at console.sandbox.co.in. Operational metrics cited by the company include 99.999% historical uptime, 1.2-second API latency, and over 1 billion successful API calls.

Sandbox monetizes through a usage-based API pricing model with self-serve wallet recharge (UPI/bank transfer) supplemented by subscription plans managed through the Console platform. Go-to-market is API-first with comprehensive developer documentation, Postman Collections, and GitHub SDKs targeting developer adoption, supplemented by direct enterprise sales. The customer base spans fintech and e-commerce platforms (Amazon, Razorpay, CoinSwitch, Coinbase, Udaan, Lenskart), HRMS/payroll companies (Keka, GreytHR, PagarBook), large enterprises and conglomerates (Tata, Aditya Birla, Godrej, Zerodha, Panasonic, OYO, Airbnb, Akbar Travels), and emerging segments including crypto, digital gold, logistics, and digital infrastructure (AuraGold, Shipyaari, Dice, Digio). The company operates with a small team of 1–10 employees and is affiliated with Quicko, an Indian tax-filing platform.

The business serves Indian tax compliance buyers across enterprise, mid-market, SMB, and SaaS-platform segments, with no disclosed geographic expansion outside India. The product portfolio has expanded steadily from KYC and TDS origins (2023) into Income Tax, GST e-invoicing, DigiLocker, and EntityLocker (2025–2026), with a major platform overhaul (Sandbox v2.0) released in July 2025. No external funding rounds, acquisitions, or leadership changes are disclosed in the available data.

Name

Sandbox

Legal name

Sandbox Financial Technologies Private Limited

Website

https://sandbox.co.in

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Sandbox is an India-based tax API platform offering 200+ REST APIs for KYC, Income Tax, TDS, and GST compliance automation, serving enterprises, fintechs, and SaaS platforms as an authorized government TSP.

Ownership category

akta.pro rank

Product category

Tax Compliance APIs

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Regulatory Reporting, Tax & Audit Trails (reconciliation, provenance) (FSAPAJAI)

akta.pro secondary industry

Privacy, Data Protection & Compliance (zk compliance, GDPR/PII handling) (FSAPAJAM)

Keywords

• Tax compliance APIs
• KYC verification
• GST automation
• TDS compliance
• Identity verification

Headquarters

HQ city

Ahmedabad

HQ country

India

HQ region

Asia

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales

Revenue model

1. API Usage Fees: Usage-based API pricing where customers pay per API call. Some APIs are sourced from ecosystem partners (government departments, licensed intermediaries) and are paid APIs requiring wallet credits. Self-serve wallet recharge via UPI or bank transfer.
2. Subscription Plans: Subscription-based plans via Console platform for API access management, billing, and subscription management. Customers can start, upgrade, or downgrade plans with billing history and invoice download.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels11 records

Core offering

Sandbox provides an end-to-end tax compliance automation platform for businesses through 200+ REST APIs covering KYC (Aadhaar, PAN, bank account, MCA, DigiLocker verification), Income Tax (calculations, forms, crypto P&L), TDS (deductions, reconciliation, Form 24Q/16 generation, e-filing), and GST (e-invoicing, e-way bills, GSTR filing, reconciliation). The platform acts as an authorized Technology Solution Provider with real-time integration into Indian government systems (GSTN, UIDAI, Income Tax Department, MCA, DigiLocker).

Product overview

Sandbox is India’s leading tax API platform offering an end-to-end compliance automation solution for businesses. The platform provides four core product verticals: KYC (identity verification for individuals and businesses), Income Tax (direct tax calculations, forms, and filing), TDS (tax deduction compliance and e-filing), and GST (e-invoicing, e-way bills, returns, and reconciliation). These core products are supplemented by specialized calculators (Income Tax, TDS, TCS), Digital Locker for document management, and Cost Calculator for pricing estimation. The platform acts as an authorized Technology Solution Provider (TSP), interacting in real-time with government systems including GSTN, UIDAI, Income Tax Department, and MCA. Developers access these capabilities through REST APIs with SDKs in Java and Node.js, supporting webhooks for event-driven workflows.

Differentiator

Problem solved

Functional benefit

Products and services

• KYC APIs Identity verification APIs enabling instant KYC for individuals and businesses. Supports Aadhaar OTP verification, PAN verification, bank account verification (penny drop and penny-less), MCA company/director search, DigiLocker document verification, and EntityLocker business document verification.
• Income Tax APIs Direct tax compliance APIs for calculating income tax on diverse income sources, processing tax forms, and preparing tax returns. Includes crypto tax P&L calculations for spot and futures trading, domestic and foreign securities tax calculations, and embedded tax filing capabilities.
• TDS APIs Tax Deducted at Source compliance APIs automating TDS deductions, reconciliation, quarterly return generation (Form 24Q, Form 27Q), Form 16/16A certificate downloads, FVU generation, and e-filing. Also supports TCS calculations and reporting.
• GST APIs Goods and Services Tax compliance APIs including e-invoicing (IRN generation, cancellation, PDF generation), e-way bill management, GSTR filing (GSTR-1, GSTR-2A, GSTR-2B, GSTR-3B, GSTR-9), invoice reconciliation, and ITC tracking.
• DigiLocker SDK Software development kit enabling consent-based digital KYC. Allows individuals to securely fetch verified documents (Aadhaar, PAN, Driving License) from DigiLocker directly into applications. Available for Web and Flutter (iOS/Android).
• EntityLocker SDK Software development kit for consent-based digital KYB. Enables organizations to securely fetch verified business documents (GSTN Details, Udhyam Certificate, Company Master Data) from EntityLocker, India's digital document wallet for organizations.
• Cost Calculator Pricing estimation tool allowing businesses to calculate API usage costs based on expected transaction volumes.

Quantifiable outcome

• 99.999% API uptime and 1.2 second latency
• +7 more outcomes

Named customers17 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature7 records

Partnerships

Eight partnerships are on record, tiered core.

• GSTN (Goods and Services Tax Network)coreTechnology or IntegrationReal-time integration with GSTN infrastructure for GST compliance APIs including e-Invoicing, e-Way Bills, GSTR filing, and reconciliation. Authorized Technology Solution Provider (TSP) with direct access to GST portal for automated compliance workflows.
• UIDAI (Unique Identification Authority of India)coreTechnology or IntegrationIntegration with UIDAI for Aadhaar verification services enabling identity verification through OTP-based and offline e-KYC methods for KYC compliance.
• MCA (Ministry of Corporate Affairs)coreTechnology or IntegrationIntegration with MCA for company and director verification APIs (CIN, DIN lookup) enabling KYB compliance and business entity validation.
• Income Tax DepartmentcoreTechnology or IntegrationIntegration with Income Tax Department for PAN verification, PAN-Aadhaar linking status, and income tax compliance APIs.
• DigiLockercoreTechnology or IntegrationIntegration with DigiLocker for consent-based document retrieval, enabling secure access to Aadhaar, PAN, Driving License, and other government documents for digital KYC flows.
• NSDL/ProteancoreTechnology or IntegrationIntegration with NSDL/Protean for PAN verification services, enabling real-time PAN validation against official records.
• NIC (National Informatics Centre)coreTechnology or IntegrationIntegration with NIC e-Invoice portals (e-Invoice 1 and e-Invoice 2) for e-Invoicing and e-Way Bill generation with criss-cross failover operations for reliability.
• Bank Verification NetworkscoreTechnology or IntegrationIntegration with bank networks for penny drop and penny-less verification enabling real-time bank account ownership validation across 76+ supported banks.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Zoho Books: Zoho Books is part of Zoho's broader business application suite, offering accounting, GST compliance, and e-invoicing for Indian SMBs and enterprises. Comparable to Sandbox's GST and compliance functionality but as a wider ERP/administration platform rather than specialized API infrastructure.
• Stripe Tax: Stripe Tax provides automated tax calculation, collection, and filing for digital businesses globally with India GST support. Comparable in API-first approach and developer experience, though embedded within Stripe's broader payments platform rather than standalone.
• Avalara: Avalara is a global tax compliance automation platform offering VAT, GST, and sales tax APIs for businesses worldwide. Comparable to Sandbox's API-first tax compliance approach and developer-led GTM, but operating across multiple tax jurisdictions rather than India-specialized.

Direct peers

• Masters India: Masters India provides GST software, e-invoicing, e-way bill, and tax API solutions to Indian businesses and developers. Directly comparable to Sandbox's GST and e-invoicing product line, serving similar mid-market and enterprise customers with developer-friendly API offerings.
• Tera Software: Tera Software provides GST, income tax, and TDS compliance software with API integrations for Indian businesses and ERP partners. Comparable to Sandbox across the full tax compliance stack with similar developer and enterprise partner channels.
• ClearTax (now Clear): ClearTax/Clear is India's largest tax compliance platform offering GST filing, e-invoicing, TDS, and income tax solutions via web and APIs. Directly comparable to Sandbox as both serve Indian enterprises and fintechs with tax compliance automation, though ClearTax has a broader product suite and larger customer base.
• Winman Software (GSP): Winman is a GST Suvidha Provider (GSP) offering GST APIs, e-invoicing, and return filing tools to Indian enterprises and developers. Directly comparable to Sandbox's GST API offering with similar TSP-like access to GSTN infrastructure.
• IRIS GST: IRIS GST offers GST compliance software, return filing, and e-invoicing solutions for Indian businesses. Comparable to Sandbox's GST product vertical with overlapping enterprise and SMB customer segments, though more application-centric versus API-first.
• Saral GST: Saral GST by Adret Software provides GST return filing, e-invoicing, and reconciliation tools with API access for Indian businesses. Comparable to Sandbox's GST compliance offerings, particularly the reconciliation and return filing workflow automation.

Others

• Quicko: Quicko is the apparent parent brand of Sandbox (per the website title 'Sandbox: Tax API Stack for India by Quicko') and offers consumer and business tax filing tools in India. Connected via corporate structure and shared India tax compliance focus, though Quicko's product is end-user tax filing versus Sandbox's API platform.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/sandbox_api
• GitHubgithub.com/in-co-sandbox
• YouTubeyoutube.com/@sandboxapi
• LinkedInlinkedin.com/company/sandboxapi

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sandbox