# x402 PayAI Network Base USDC Paywall Unlocker

> x402 PayAI Network Base USDC Paywall Unlocker is a paid API for AI agents from x402.payai.network, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Unlocks paywalled GET content on the Base (eip155:8453) network by processing a $0.01 USDC micropayment and returning the protected resource.

## Facts

- Endpoint: POST https://x402.payai.network/api/base/paid-content
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-payai-network-195ed3af
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0CuAbdPcG2AkUo_rgp_0C

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-payai-network-195ed3af -d '<json body>'
```

Example prompt: Pay to unlock this paywalled content at https://example.com/exclusive-article using USDC on the Base network — it's an x402-protected resource that costs $0.01.

## When to prefer this

Use this endpoint when an API or content server returns a 402 Payment Required response on the Base (eip155:8453) network and requires USDC payment via the x402 protocol. Prefer this over the Polygon sibling endpoint when the paywall is specifically on Base L2. Ideal for AI agents that need to autonomously pay for and retrieve crypto-gated information without human intervention.

## Known failure modes

- Insufficient USDC balance — payment cannot be completed
- Wrong network — payment attempted on non-Base chain
- Invalid payment header — x402 payment proof rejected
- Resource URL not found or no longer paywalled
- Payment amount mismatch — exact 0.01 USDC not provided
- Transaction timeout — Base network congestion or RPC failure

## How this service works

Access to protected content on base mainnet

## Output

The agent receives the previously gated content or resource payload that was behind the x402 paywall, after the USDC micropayment has been confirmed on the Base network.

## Example request

```json
{
 "network": "eip155:8453",
 "notifyEmail": "zero-qa@agentmail.to",
 "resourceUrl": "https://example.com/exclusive-article",
 "paymentToken": "USDC",
 "paymentAmount": "0.01"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-payai-network-195ed3af/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.payai.network](https://www.zero.xyz/host/x402.payai.network/llms.txt)