TaxStreem Developer Platform

Build intelligent tax compliance workflows

Connect your product directly to TaxStreem APIs — file taxes, reconcile invoices, and classify transactions without building compliance logic yourself.

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Explore the API

Browse our reference docs, run live requests, and understand the response models.

Ship compliance code

Integrate Flux, Prism, or Numens into your product and go live in hours, not weeks.

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Create a free account or explore the API instantly — no credit card required.

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Create your account

Get API keys and start integrating in minutes

Create a developer account

Generate sandbox API keys

Make your first API call

Free sandbox access — no production commitment required.

Explore the API

Browse endpoints and test requests instantly

Browse all endpoints with live examples

Inspect request and response schemas

Test endpoints with real-time previews

Full API reference covering Flux, Prism, and Numens modules.

Build your integration

Select how you want to integrate — REST APIs, MCP servers, or SDKs — based on your architecture and workflow.

REST API

Integrate directly with our APIs for full control

MCP Servers

AI integration with context-aware APIs

SDKs

Official libraries for faster development

Webhooks

Real-time event streaming to your endpoints

Batch Processing

High-volume filing and classification pipelines

api-integration.js

const response = await fetch(

'/api/v1/flux/vat/single-filing',

{

method: 'POST',

body: JSON.stringify(data)

}

);

Response200 OK

idvat_8a2k1

status● success

processed1 filing

duration142ms

Developer resources

Everything you need to integrate, ship, and stay current.

API Reference

Complete endpoint documentation with request and response schemas for every module.

Browse

Integration Guide

Step-by-step walkthroughs from authentication to your first live filing.

Read

SDKs

Official client libraries that wrap our REST API in idiomatic code.

Explore

Changelog

Stay current with the latest API updates, new features, and deprecations.

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