Assentt API

For individuals, companies, and the platforms they build

Assentt APIReady finance products, in your software.

A new provider. Connect Accountant, Finance, and Taxes to the product you already run — with your own keys, permissions, and usage. AGI is the next AI in this field.

Read the docsSee pricing
curl https://api.assenttwealth.com/v1/taxes/estimates \
  -H "Authorization: Bearer sk_live_…" \
  -H "Content-Type: application/json" \
  -d '{"province":"ON","year":2025,"income":120000}'

What you can integrate

Each product is a set of permissions on your key. Call the ones your customers need.

Accountant

Live

A live practice inside your own software: open work, overdue items, receivables, and recent alerts.

  • Practice summary
  • Upcoming work
  • Receivables
accountant.summary:read

Finance

Live

Spending, cash flow, and categorized transactions for the apps you ship to your customers.

  • Transactions
  • Cash flow
  • Categories
finance.transactions:read

Taxes

Live

Personal and corporate estimates, organizers, and a what-if preview that does not have to be saved.

  • T1 and T2
  • Organizers
  • What-if
taxes.estimates:read

AGI

Next

The next AI in this field. One intelligence across accounting, finance, and tax, inside your platform.

  • Accountant
  • Finance
  • Taxes

CLI, SDK, and the reference

The same products, from the terminal, from your code, and from the guide.

CLI

Next

The assentt command. Sign in with your key, check usage, and call Accountant, Finance, and Taxes from the terminal.

  • npm and bun
  • Your API key
  • Same calls as the HTTP API

SDK

Next

A typed client for the products you already integrate, so your platform does not assemble each request by hand.

  • Accountant
  • Finance
  • Taxes

Reference

Live

One guide for keys, errors, idempotency, every Taxes call, webhooks, and the machine-readable spec.

  • Authentication
  • Every call
  • OpenAPI

Pricing

Canadian dollars. Add credits as you use Accountant, Finance, and Taxes, or keep a monthly plan.

Free

$0/mo

Try Assentt with test keys.

  • Test mode keys
  • 1,000 calls / month
  • Taxes estimates read
  • OpenAPI
Start free

Build

$49/mo

Production keys for a product team.

  • Live keys
  • 50,000 calls / month
  • Taxes + Accountant scopes
  • Webhooks
Start an engagement

Scale

$199/mo

Higher volume for Accountant, Finance, and Taxes.

  • 250,000 calls / month
  • Restricted keys
  • Usage export
  • Priority rate limit
Start an engagement