The content you requested is behind a paywall

What happened?

Your request reached the publisher's CDN edge node. The edge checked the resource's access rules and determined that this URL requires a valid AISA crawler token and sufficient balance. Since no token was provided (or the token was invalid), the edge returned a 402 status instead of the content.

How the payment model works

AISA uses a pay-per-crawl model. Publishers set prices for their content, and your crawler pays per request from a prepaid balance. There are no subscriptions, no monthly fees, and no per-site contracts. You control your spending with built-in budget modes.

• Pay-per-Crawl Pay only for pages you actually access. No wasted spend.
• One Token A single token works across all publishers on the AISA network.
• Price Discovery Every paid resource returns its price before you commit.
• Budget Control Set a maximum price per request. If the cost exceeds your cap, the request is declined — no charge.
• Edge Delivery Content is served from Alibaba Cloud ESA's global network. Verification happens at the edge with minimal latency.

Getting started

1. Create an account — register on the AISA platform to get your crawler_token.
2. Fund your wallet — add balance via crypto (Solana, Base, Polygon, Lightning, BNB) or card (Stripe).
3. Include your token — add X-AISA-Crawler-Token: <token> to your crawl requests.
4. Access content — the CDN verifies your token, deducts the price, and returns the content.

# Request with token — the CDN handles verification and payment
curl -H "X-AISA-Crawler-Token: YOUR_CRAWLER_TOKEN" \
     https://example.com/premium/article-123

# If your balance is sufficient, you get the content directly.
# If not, you get a 402 with the price so your agent can decide.

Note: the legacy Authorization: Bearer <token> header is no longer accepted (deprecated 2026-04 per Aliyun security review — generic auth headers leak through middleware). Use the custom X-AISA-Crawler-Token header instead.

Pricing modes

Your agent can choose how to handle payments on each request:

• Auto Pay Automatically pay the publisher's price if your balance covers it.
• Budget Cap Set a maximum. Pay only if the resource price is within your limit.
• Exact Match Pay only if the price matches a specific amount you expect.