Cleartax
Cleartax (operating as Clear, clear.in) is an Indian fintech and financial-compliance automation platform that provides tax, GST, and e-invoicing software for individuals, tax professionals, and over 4,000 enterprises. Clear exposes a suite of developer APIs through its documentation portal at docs.cleartax.in, including the Clear Finance Cloud (CFC) ingestion APIs, the GST 2.0 / GSP filing API, the Max ITC input-tax-credit reconciliation API, the GLS API, the E-Invoicing and E-Waybill APIs (with government IRP/NIC-compatible endpoints and DSC signing), the Invoicing API, and KSA (Saudi Arabia) e-invoicing APIs. APIs authenticate with a client secret exchanged for an access token and run against production (api.clear.in) and sandbox (api-sandbox.clear.in) hosts.
Cleartax publishes 5 APIs on the APIs.io network. Tagged areas include Company, Tax, GST, E-Invoicing, and Compliance.
Cleartax’s developer surface includes documentation, API reference, getting-started guide, support, pricing, signup flow, authentication, and 15 more developer resources.
API Rating
APIs
Clear E-Invoicing & E-Waybill API
Generate, cancel, and retrieve GST e-invoices (IRN) and e-waybills, including government IRP/NIC-compatible endpoints, DSC PDF signing, and bulk operations.
Clear GST 2.0 API
ASP/GSP GST filing API for uploading documents and filing G1-G9 returns via Clear's GST Suvidha Provider integration.
Clear Finance Cloud (CFC) API
Document ingestion APIs for sale and purchase documents via file upload (pre-signed URL) with access-token authentication and ingestion-status tracking.
Clear Max ITC API
Input Tax Credit (ITC) reconciliation API: upload purchase documents, trigger the Max ITC workflow, and fetch reconciliation results.
Clear Invoicing API
Create sale and non-sale documents, download document PDFs, and retrieve document details for invoicing workflows.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 3
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use