---
title: "wFirma API: connect it to your AI chat · Hypamoon"
description: "The wFirma API is documented, but access goes through wFirma first. What it takes to connect it to your AI chat with Hypamoon, with sources."
url: https://hypamoon.com/connect-to/wfirma
---

1.  [Connect to](https://hypamoon.com/connect-to)
2.  wFirma

ERP and accounting

# Connect wFirma to Hypamoon

Possible, with help from wFirma. The API is documented, but you cannot just create a key: access goes through wFirma first.

Possible

## The check

Three questions about the API of wFirma, answered from its own docs.

**Public API docs**\
**Yes.** The API reference is public at doc.wfirma.pl, in Polish. [Read the docs](https://pomoc.wfirma.pl/-api-interfejs-dla-programistow)

**A key you create yourself**\
**No.** You request API access in the API integration tab, and wFirma may refuse or withdraw the credentials. [pomoc.wfirma.pl](https://pomoc.wfirma.pl/-api-interfejs-dla-programistow)

**Versions or a changelog**\
**Not confirmed.**

**How it signs in**\
An access key and secret key from the API integration tab, sent as request headers; wFirma decides whether to grant them.

**Webhooks**\
**Yes.** It can tell your app when something changes. [pomoc.wfirma.pl](https://pomoc.wfirma.pl/-api-interfejs-dla-programistow)

**Hosting**\
Cloud

**Condition**\
Free up to 1000 documents created through the API per month; above that wFirma asks for an individual agreement.

## In practice

What it takes in a real wFirma administration.

**Getting access**\
Request API access in the API integration tab of your wFirma account; wFirma issues the keys and may refuse or withdraw them.

**Limits**\
Free use up to 1000 documents created through the API per month. No rate limit per minute is published. [pomoc.wfirma.pl](https://pomoc.wfirma.pl/-api-interfejs-dla-programistow)

**Writing**\
**Read and write.** Add and edit invoices, and send them to KSeF under the user of the key.

**Cost**\
Free up to 1000 API documents per month; above that an individual agreement and the Allegro and e-commerce manager add-ons. [pomoc.wfirma.pl](https://pomoc.wfirma.pl/-api-interfejs-dla-programistow)

## Your own invoice flow on wFirma, built around how your customers order.

-   Invoices, customers and goods, straight from wFirma.
-   AI that drafts the invoice from an order and flags missing VAT details, with you approving before it is issued.
-   A screen for your team and an email when an e-invoice comes back with an error.

### Ask your chat

Answers straight from your wFirma data, in Claude or another chat with the full Hypamoon connection.

-   Which invoices from last month are still unpaid?
-   Which customers did we invoice most this quarter?

### When something happens

wFirma sends a webhook to your app for some events, and the app asks AI what happens next. For the rest an agent checks every 15 minutes.

1.  When

    The processing status of an e-invoice in KSeF changes.

    AI decides

    AI reads the status and decides whether someone needs to act.

    Then

    The right colleague gets an email with what went wrong and on which invoice.

2.  Every 15 minutes

    New orders in your web shop that have no invoice yet.

    AI decides

    AI checks the customer details and VAT number and prepares the invoice.

    Then

    The invoice is created in wFirma after you approve it.

    AI proposes, you approve

### A screen for your team or customers

An app on your own address, with sign-in, on top of the same wFirma data.

-   For your team

    A daily list for your team of invoices waiting for approval and e-invoices with an error.

wFirma stays the core: your chat builds the rest on its API, as an adapter plus an app and agents in your Hypamoon project. Reading starts after you click Allow in the portal. Every change an agent or a chat makes in wFirma waits for your approval, one call at a time. [How adapters work](https://hypamoon.com/docs/adapters)

### Good to know

-   Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow.
-   Invoices sent to KSeF through the API go out under the user whose key is used, so that user needs a working KSeF authorisation.

## Try it in your chat

First get access from wFirma. Then fill in what to read and write, and send it.

Say this in your chat

> Build the Hypamoon recipe build-an-adapter for wFirma. API docs: https://doc.wfirma.pl. Read: \[what\]. Write: \[what, or nothing\].

[Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20wFirma.%20API%20docs%3A%20https%3A%2F%2Fdoc.wfirma.pl.%20Read%3A%20%5Bwhat%5D.%20Write%3A%20%5Bwhat%2C%20or%20nothing%5D.)

In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. [The full recipe](https://hypamoon.com/r/build-an-adapter)

## Sources

Checked on 7 November 2026.

-   [pomoc.wfirma.pl/-api-interfejs-dla-programistow](https://pomoc.wfirma.pl/-api-interfejs-dla-programistow)

wFirma is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with wFirma. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact).

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## Tool not listed? Ask the chat to check its API.

The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.

Say this in your chat

> Check if \[software\] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.

[Open in Claude](https://claude.ai/new?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) [Open in ChatGPT](https://chatgpt.com/?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.)

Fill in the name of your software. Checking needs no connection to Hypamoon.

## Ready to connect wFirma?

Connect your chat once, then ask it to build the adapter.

[Start free](https://app.hypamoon.com/?mode=signup&utm_source=connect-to&utm_campaign=wfirma)

Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~wfirma#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~wfirma#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)