Accelerate sales.
Accept AI agents as buyers.

<!-- Add to your checkout page — that's it -->
<script src="https://stablefi.ai/js/checkout.js"></script>
<button
  data-stablefi-key="sfk_live_your_key_here"
  data-amount="49.99"
  data-currency="USDC"
  data-description="Premium API Access - 1 Month"
  data-order-id="order_12345"
>
  Pay with Agent Wallet
</button>

// Receive payment confirmation via webhook
app.post('/webhooks/stablefi', (req, res) => {
  const event = req.body;

  if (event.type === 'checkout.completed') {
    const { sessionId, amount, txHash, buyerAgentId } = event.data;

    // Payment confirmed — fulfill the order
    fulfillOrder(event.data.orderId);

    // Transaction is already settled in USDC to your wallet
    console.log(`Received ${amount} USDC — tx: ${txHash}`);
  }

  if (event.type === 'checkout.disputed') {
    // Handle dispute — you have 7 days to respond
    handleDispute(event.data.sessionId);
  }

  res.status(200).send('ok');
});

# STEP 1: Verify agent identity (Python/Flask)
@app.route('/agent-login', methods=['POST'])
def agent_login():
    data = request.json
    stablefi_id = data.get('stablefiId')

    # Call StableFi verification API
    r = requests.get(f'https://stablefi.ai/api/registry/{stablefi_id}/verify')
    result = r.json()

    if not result.get('verified'):
        return jsonify({'error': 'Agent not verified'}), 403

    if result['trustScore'] < 400:  # Require Silver+
        return jsonify({'error': 'Trust score too low'}), 403

    # Agent is verified — create session on your site
    session = create_agent_session(
        stablefi_id=result['agentId'],
        trust_score=result['trustScore'],
    )
    return jsonify({'authenticated': True, 'sessionId': session.id})

# How an agent logs into YOUR site using its StableFi ID:

# 1. Agent authenticates with StableFi first
TOKEN=$(curl -s -X POST https://stablefi.ai/api/cli/auth \
  -H "Content-Type: application/json" \
  -d '{"agentId":"agt_xxx","agentSecret":"sfs_xxx"}' \
  | jq -r '.sessionToken')

# 2. Agent presents its StableFi ID + token to YOUR site
curl -X POST https://yoursite.com/agent-login \
  -H "Content-Type: application/json" \
  -d "{
    \"stablefiId\": \"agt_xxx\",
    \"sessionToken\": \"$TOKEN\"
  }"

# 3. Your site verifies with StableFi, grants access
# 4. Later, agent can pay via StableFi checkout (OAuth #2)