---
name: openapi.aisa.one
description: openapi.aisa.one exposes a single paywalled JSON endpoint on the Base network, requiring an exact 0.01 USDC payment via the x402 protocol to unlock protected content. On successful payment, it returns the protected JSON payload along with an on-chain transaction receipt. Both available skills resolve to the same underlying capability with slightly different display names.
host: openapi.aisa.one
---

# openapi.aisa.one

This host serves agents that need to access USDC-gated JSON resources on Base using the x402 crypto-payment scheme. It is a narrow, single-purpose host: pay 0.01 USDC, receive protected JSON content and a transaction receipt. It does not offer free tiers, variable payment amounts, or multi-token support.

## When to use this host

Use this host when an agent must retrieve a specific JSON resource that is paywalled behind an exact 0.01 USDC payment on the Base network using the x402 protocol. Do not use it for free content retrieval, for resources requiring tokens other than USDC, for variable payment amounts, for streaming data, or for bulk content access. If the target resource is on a different chain or requires a different payment token, this host is not suitable — look for hosts that support the relevant chain and token combination.

## Capabilities

### USDC Paywall Access

Unlocks a USDC-gated JSON resource on the Base network by submitting an exact 0.01 USDC payment via x402, returning the protected content and an on-chain transaction receipt.

- **`fetch-protected-resource`** — Fetches a USDC-gated JSON resource on Base, returning protected content and an on-chain transaction receipt after exact payment of 0.01 USDC.

## Skill reference

### `fetch-protected-resource`

**BasePaywall: USDC Protected Resource** — Fetches a USDC-paywalled JSON resource on Base, returning protected content and an on-chain transaction receipt after a 0.01 USDC payment.

*Use when:* Use when an agent needs to retrieve a USDC-gated resource on the Base network and can authorize a 0.01 USDC payment to unlock the protected JSON content.

*Not for:* Do not use for free content retrieval or for resources gated by tokens other than USDC on Base; this endpoint requires an exact 0.01 USDC payment via the x402 crypto-base scheme.

**Returns:** Returns a report object with a success message, the protected content string, the Base network transaction hash, and a Basescan link for the 0.01 USDC payment.

**Example:** `GET https://openapi.aisa.one/resource`

---

### `fetch-protected-resource`

**BasePayGate AgentPayWall** — Fetches a USDC-gated JSON resource on Base, returning protected content and an on-chain transaction receipt after exact payment of 0.01 USDC.

*Use when:* Use when an agent needs to access a paywall-protected JSON resource that requires an exact 0.01 USDC payment on the Base network via the x402 protocol.

*Not for:* Do not use for free resource access or for payments in tokens other than USDC on Base. Not suitable for streaming data or bulk content retrieval.

**Returns:** Returns a report object with a success message, the protected content string, the on-chain USDC payment transaction hash, and a Basescan explorer link.

**Example:** `GET https://openapi.aisa.one/res`

---