> ## Documentation Index
> Fetch the complete documentation index at: https://shinydapps-bd9fa40b.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ????????

> ????? ??????? ?????? ??????? ????? ?? API ? Bitcoin sats.

## ??? ????? l402-kit?

**l402-kit** � ??? open-source middleware, ??????? ????????? ?????? ???????????? ???????? Bitcoin Lightning ???????????? ? ???? API ? 3 ??????? ????.

??? ????????? ?????. ??? ???????????. ??? ?????????. ??? ??????????? ????????. ?????? sats.

```bash theme={null}
npm install l402-kit   # TypeScript / Express
pip install l402kit    # Python / FastAPI / Flask
go get github.com/shinydapps/l402-kit/go@v1.10.0  # Go / net/http
cargo add l402kit       # Rust / axum
```

## ????? ???????? ???????

* **Stripe**: ??????? \$0.30 ?? ?????????? � ?????????? ??? ?????????????
* **????????**: ????? ???????????? ??????????? ???????
* **??-??????**: ??? ????????? ????? � ?? ????? ????????????? ??????? ?? API

**l402-kit** � ?????? ???????: pay-per-call ????? Lightning Network, ?????? ????? ??? ?? 1 ???????, ?????????, ??? ???????????.

## ??? ?????

* **???????????? API** � ????? ?? ????? ?????? ??????????? ????????
* **????????? ??-???????** � ?????? ?????? ?????????????
* **???? ??? Stripe** � ??????, Bitcoin ?? ????? ??????
* **?????????? ??????** � 1 sat ?? ??????, ?????????? ? Stripe

## ??????? ????? � TypeScript

```typescript theme={null}
import express from "express";
import { l402 } from "l402-kit";

const app = express();

app.get("/premium", l402({
  priceSats: 100,                            // ~$0.06 ?? ?????
  lightning: new AlbyProvider(process.env.ALBY_TOKEN!, process.env.ALBY_HUB_URL!),     // ?????????? ????? � 0% ????????
}), (_req, res) => {
  res.json({ data: "?????? ????????????." });
});

app.listen(3000);
```

## ??????? ????? � Python

```python theme={null}
from fastapi import FastAPI, Request
from l402kit import l402_required

app = FastAPI()

@app.get("/premium")
@l402_required(
    price_sats=100,
    lightning=ManagedProvider.from_address("you@blink.sv"),
)
async def premium(request: Request):
    return {"data": "?????? ????????????."}
```

## ????????????? ??????

```bash theme={null}
curl http://localhost:3000/premium
# ? {"error":"Payment Required","priceSats":100,"invoice":"lnbc..."}
```

<Card title="?????? ???????????" icon="bolt" href="https://l402kit.com/docs/quickstart">
  ?? ???? ?? ???????? API ?? 5 ?????
</Card>