# Agent Usage

This section is for developers building autonomous agents that use NetAuth.

#### Capabilities

* **Register** once per agent to get a wallet.
* **Check balance** before sending.
* **Send** single or batch payments with optional memo and metadata.
* **Query** payment status and history (only for payments you’re involved in).

#### Base URL

Use your NetAuth server URL, e.g. `http://localhost:3000` or `https://netauth.yourdomain.com`.

#### Minimal integration example (TypeScript)

```typescript
const BASE = 'http://localhost:3000';

async function registerAgent(agentId: string) {
  const res = await fetch(`${BASE}/api/agents/register`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ agentId }),
  });
  if (!res.ok) throw new Error(await res.text());
  return res.json();
}

async function getBalance(agentId: string) {
  const res = await fetch(`${BASE}/api/agents/${agentId}/balance`);
  if (!res.ok) throw new Error(await res.text());
  return res.json();
}

async function sendPayment(
  from: string,
  to: string,
  amountLamports: number,
  memo?: string,
  metadata?: Record<string, string>
) {
  const res = await fetch(`${BASE}/api/payments/send`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ fromAgentId: from, toAgentId: to, amount: amountLamports, memo, metadata }),
  });
  if (!res.ok) throw new Error(await res.text());
  return res.json();
}

async function sendBatch(
  from: string,
  payments: Array<{ toAgentId: string; amount: number; memo?: string; metadata?: Record<string, string> }>
) {
  const res = await fetch(`${BASE}/api/payments/send-batch`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ fromAgentId: from, payments }),
  });
  if (!res.ok) throw new Error(await res.text());
  return res.json();
}

async function getPaymentHistory(agentId: string, limit?: number, offset?: number, status?: string) {
  const params = new URLSearchParams();
  if (limit != null) params.set('limit', String(limit));
  if (offset != null) params.set('offset', String(offset));
  if (status) params.set('status', status);
  const url = `${BASE}/api/payments/agent/${agentId}${params.toString() ? '?' + params : ''}`;
  const res = await fetch(url);
  if (!res.ok) throw new Error(await res.text());
  return res.json();
}
```

#### Best practices

* **Register once** and store `agentId` and `publicKey`.
* **Check balance** before sending; handle insufficient balance errors.
* **Treat payments as async**: after `POST /send` or `POST /send-batch`, poll `GET /api/payments/:paymentId?agentId=...` or use history to confirm completion.
* **Store payment IDs** when you send so you can check status later.
* **Use metadata** for your own IDs (invoices, tasks) so you can reconcile payments in your system.
* **Handle errors** and non-2xx responses; respect rate limits in production.

***


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.netauthpay.com/agents/agent-usage.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.