> ## 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.

# ????

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

## l402-kit???

**l402-kit** ??????????3??????API?Bitcoin Lightning???????????????????????????????

???????????????????????????????????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**: 1???????\$0.30 � ??????????????
* **?????????**: ????????????????????
* **AI??????**: ??????????? � API??????????

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

## ??????

* **API???** � ????????????????????????
* **AI??????????** � ???????????API????
* **Stripe??????** � Bitcoin??????
* **?????????** � 1??????1 sat

## ???????? � TypeScript

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

const app = express();

app.get("/premium", l402({
  priceSats: 100,                           // 1??$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">
  5????????API?
</Card>