# Sandbox documentation > API references and integration guides for KYC, GST, TDS, income tax, and banking. - [Complete documentation](https://developer.sandbox.co.in/llms-full.txt): Full text of the documentation pages. ## Get started - [Sandbox API documentation](https://developer.sandbox.co.in/index.md): Here you'll find guides, references, and resources to build with Sandbox. Let's get you started. API stack for Businesses to automate KYC, GST, TDS & Income Tax. - [Quickstart](https://developer.sandbox.co.in/guides/get-started/quickstart.md): Learn how to authenticate and make your first API call to Sandbox APIs in minutes. - [Errors](https://developer.sandbox.co.in/guides/developer-resources/errors.md): Understand error responses, http status codes, and how to handle errors in Sandbox APIs. - [Webhooks](https://developer.sandbox.co.in/guides/developer-resources/webhooks.md): Receive real-time notifications when events occur in your Sandbox account. - [Job-based API workflow](https://developer.sandbox.co.in/guides/developer-resources/job_based_apis.md): Learn how to use Sandbox job-based APIs with asynchronous processing for large payloads and long-running operations. ## API references - [KYC APIs](https://developer.sandbox.co.in/api-reference/kyc/overview.md) - [Aadhaar Verification API](https://developer.sandbox.co.in/api-reference/kyc/aadhaar/overview.md) - [Bank Account & IFSC Verification API](https://developer.sandbox.co.in/api-reference/kyc/bank/overview.md) - [DigiLocker API](https://developer.sandbox.co.in/api-reference/kyc/digilocker/overview.md) - [EntityLocker](https://developer.sandbox.co.in/api-reference/kyc/entitylocker/overview.md) - [MCA APIs](https://developer.sandbox.co.in/api-reference/kyc/mca/overview.md) - [PAN API](https://developer.sandbox.co.in/api-reference/kyc/pan/overview.md) - [GST APIs](https://developer.sandbox.co.in/api-reference/gst/overview.md) - [GSTR-2A reconciliation](https://developer.sandbox.co.in/api-reference/gst/analytics/guides/gstr-2a-reconciliation/overview.md) - [GSTR-2B reconciliation](https://developer.sandbox.co.in/api-reference/gst/analytics/guides/gstr-2b-reconciliation/overview.md) - [GST Public APIs](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/public/overview.md) - [GSTR-1 API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/gstr-1/overview.md) - [GSTR-2A API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/gstr-2a/overview.md) - [GSTR-3B API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/gstr-3b/overview.md) - [GSTR-9 API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/gstr-9/overview.md) - [GST Ledgers API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/ledgers/overview.md) - [E-Invoice List API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/e-invoice/overview.md) - [Invoice Management System (IMS) API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/taxpayer/invoice-management-system/overview.md) - [GST e-Invoice API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/e-invoice/overview.md) - [GST E-Way Bill API](https://developer.sandbox.co.in/api-reference/gst/compliance/guides/e-way-bill/overview.md) - [TDS APIs](https://developer.sandbox.co.in/api-reference/tds/overview.md) - [TDS Calculator API](https://developer.sandbox.co.in/api-reference/tds/calculator/overview.md) - [TDS Reports API](https://developer.sandbox.co.in/api-reference/tds/reports/overview.md) - [TDS compliance API](https://developer.sandbox.co.in/api-reference/tds/compliance/overview.md): Download CSI files, validate and e-file TDS and TCS returns, and generate certificates with Sandbox's TDS compliance APIs. - [TDS certificate API](https://developer.sandbox.co.in/api-reference/tds/compliance/certificates/overview.md): Generate and download TDS and TCS certificates: Form 130 (formerly Form 16), Form 131 (formerly Form 16A), and Form 133. - [Create a certificate job with a deductor token](https://developer.sandbox.co.in/api-reference/tds/compliance/certificates/endpoints/submit_with_deductor_token.md): Request Form 131 or Form 133 certificates using a deductor access token, tax year, and quarter. - [Get certificate job status with a deductor token](https://developer.sandbox.co.in/api-reference/tds/compliance/certificates/endpoints/poll_with_deductor_token.md): Check progress using the job ID and retrieve PDF ZIP download URLs when the job succeeds. - [Income Tax API](https://developer.sandbox.co.in/api-reference/it/overview.md) - [Income Tax Compliance API](https://developer.sandbox.co.in/api-reference/it/compliance/overview.md) - [Income Tax Calculator APIs](https://developer.sandbox.co.in/api-reference/it/calculator/overview.md) - [Tax P&L Calculator APIs](https://developer.sandbox.co.in/api-reference/it/calculator/tax_pnl/overview.md) - [Domestic Securities Tax P&L](https://developer.sandbox.co.in/api-reference/it/calculator/tax_pnl/securities/domestic/overview.md): Calculate profit & loss for domestic equity, mutual funds, and derivatives with automatic tax classification. - [Foreign Securities Tax P&L](https://developer.sandbox.co.in/api-reference/it/calculator/tax_pnl/securities/foreign/overview.md): Calculate profit & loss for international investments with currency conversion and special tax provisions. - [Crypto Tax P&L](https://developer.sandbox.co.in/api-reference/it/calculator/tax_pnl/crypto/overview.md): Calculate profit & loss for cryptocurrency transactions with holding period classification and tax computation. - [Income Tax Report APIs](https://developer.sandbox.co.in/api-reference/it/report/overview.md) - [Income Tax OCR APIs](https://developer.sandbox.co.in/api-reference/it/ocr/overview.md) - [Bank APIs](https://developer.sandbox.co.in/api-reference/bank/overview.md) ## Recipes - [KYC API Recipes](https://developer.sandbox.co.in/recipes/kyc/introduction.md): Production-ready KYC API integration recipes for PAN verification, Aadhaar validation, and DigiLocker document retrieval. Step-by-step implementation guides with code samples. - [GST API Recipes](https://developer.sandbox.co.in/recipes/gst/introduction.md): Production-ready GST API integration recipes for GSTR-1, GSTR-3B, GSTR-9, E-Invoice, and E-Way Bill. Step-by-step implementation guides with code samples. - [TDS API recipes](https://developer.sandbox.co.in/recipes/tds/introduction.md): Follow API recipes to prepare and file TDS returns, download filing receipts, and generate TDS certificates through TRACES. - [Generate certificates with a deductor access token](https://developer.sandbox.co.in/recipes/tds/certificates/generate-with-deductor-token.md): Authenticate a TRACES deductor, create a Form 131 or Form 133 job, poll its status, and download the certificate ZIP files. - [Income Tax API Recipes](https://developer.sandbox.co.in/recipes/it/introduction.md): Production-ready Income Tax API integration recipes for ITR filing, tax computation, and compliance automation. Step-by-step implementation guides with code samples. ## OpenAPI specifications - [Bank virtual accounts OpenAPI](https://developer.sandbox.co.in/api-reference/bank/virtual-account/openapi.json) - [GST analytics OpenAPI](https://developer.sandbox.co.in/api-reference/gst/analytics/openapi.json) - [GST compliance OpenAPI](https://developer.sandbox.co.in/api-reference/gst/compliance/openapi.json) - [Income tax calculator OpenAPI](https://developer.sandbox.co.in/api-reference/it/calculator/openapi.json) - [Income tax compliance OpenAPI](https://developer.sandbox.co.in/api-reference/it/compliance/openapi.json) - [Income tax OCR OpenAPI](https://developer.sandbox.co.in/api-reference/it/ocr/openapi.json) - [Income tax OpenAPI](https://developer.sandbox.co.in/api-reference/it/openapi.json) - [Income tax reports OpenAPI](https://developer.sandbox.co.in/api-reference/it/report/openapi.json) - [KYC OpenAPI](https://developer.sandbox.co.in/api-reference/kyc/openapi.json) - [KYC PAN OpenAPI](https://developer.sandbox.co.in/api-reference/kyc/pan/openapi.json) - [Sandbox authentication OpenAPI](https://developer.sandbox.co.in/api-reference/openapi.json) - [TDS analytics OpenAPI](https://developer.sandbox.co.in/api-reference/tds/analytics/openapi.json) - [TDS calculator OpenAPI](https://developer.sandbox.co.in/api-reference/tds/calculator/openapi.json) - [TDS compliance OpenAPI](https://developer.sandbox.co.in/api-reference/tds/compliance/openapi.json) - [TDS reports OpenAPI](https://developer.sandbox.co.in/api-reference/tds/reports/openapi.json)