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Billy API

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Billy API's own site

Plans

PlanBilled and limitsPrice
Freekr./md., ekskl. moms · 3 fakturaer · 10 udgiftsbilag · Ubegrænset omsætningFree
Basickr./md., ekskl. moms · Ingen forbrugsgrænser · Revisoradgang · Mail- og chatsupport160 DKK a month
Pluskr./md., ekskl. moms · Ubegrænsede integrationer · AI-regnskabsfunktioner · Copilot · Support via mail, chat og telefon295 DKK a month
Completekr./md., ekskl. moms · Kvartalsvist regnskabstjek · Prioriteret support · Gør-det-selv årsregnskab inkluderet595 DKK a month

As billy.dk lists them, read 5 Oct 2026. The maker's own page has the final word.

Facts from Billy API's own pages

API access
The API endpoint is https://api.billysbilling.com/v2, and all requests must use SSL. · billy.dk, 4 Oct 2026
API capabilities
The API supports getting, listing, creating, updating, and deleting resources such as invoices. · billy.dk, 5 Oct 2026
API contact
The API page directs questions and feedback to [email protected]. · billy.dk, 4 Oct 2026
API format
Billy API v2 is a JSON-based REST API, and Billy's web app uses the same API. · billy.dk, 4 Oct 2026
API key creation
Users can create as many API keys as they want to connect Billy with other software, such as a webshop or cash register. · billy.dk, 5 Oct 2026
API languages
The API documentation includes code examples for PHP, Node.js 8+, and Python 3. · billy.dk, 4 Oct 2026
API operations
The API supports getting, listing, creating, updating, and deleting resources, including invoices. · billy.dk, 4 Oct 2026
API paging
List results can be paged, and pageSize cannot exceed 1,000. · billy.dk, 4 Oct 2026
Authentication
The documentation describes company access tokens and HTTP Basic Auth; access tokens are permanent and do not expire. · billy.dk, 5 Oct 2026
Backup and storage
Billy says it stores accounting data online and backs it up every day. · billy.dk, 5 Oct 2026
Company status
Billy's API page says Billy is now part of Shine. · billy.dk, 4 Oct 2026
Compliance
Billy says it is certified and approved by the Danish Business Authority for digital bookkeeping. · billy.dk, 4 Oct 2026
Endpoint and transport
The API endpoint is https://api.billysbilling.com/v2, and all requests must use SSL. · billy.dk, 5 Oct 2026
Free plan limit
The pricing page lists a limit of 3 invoices and 10 expense receipts for Free, while Basic and higher plans have no usage limits. · billy.dk, 5 Oct 2026
Headquarters
Copenhagen, Denmark · billy.dk, 28 Sept 2026
Integrations
Billy’s integration directory includes connections for services such as Shopify, WooCommerce, Salary, MobilePay, and Lunar. · billy.dk, 5 Oct 2026
Intended users
Billy describes its accounting software as helping self-employed people manage bookkeeping, invoices, and VAT. · billy.dk, 5 Oct 2026
Other accounting features
Billy says users can upload receipts from mobile or computer or forward them by email, and that it automatically reads relevant data from uploaded receipts. · billy.dk, 5 Oct 2026
Product purpose
Billy describes its online accounting product as serving self-employed people and providing accounting, bookkeeping, and invoicing functions. · billy.dk, 4 Oct 2026
Security
Billy says it uses SSL, encrypts information, and backs up data several times a day. · billy.dk, 4 Oct 2026
Shopify workflow
Billy’s Shopify integration can transfer webshop orders into Billy as invoice drafts, and the setup guide directs users to purchase the integration through IEX. · billy.dk, 5 Oct 2026
Support
Billy advertises support every day from 07 to 22, with email, chat, and phone support listed on its pricing page. · billy.dk, 5 Oct 2026
What it is
Billy API v2 is a JSON-based REST API, and Billy’s web app uses the same API. · billy.dk, 5 Oct 2026

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