# openapi.aisa.one Protected Resource

> openapi.aisa.one Protected Resource is a paid API for AI agents from openapi.aisa.one, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Provides access to a protected resource via a pay-per-call API endpoint requiring micropayment authorization

## Facts

- Endpoint: POST https://openapi.aisa.one/resource?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openapi-aisa-one-46c3533e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VnNYmVEpy3jqfV9G_zK_b

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 openapi-aisa-one-46c3533e -d '<json body>'
```

Example prompt: Can you fetch the protected resource from openapi.aisa.one for me? It costs $0.01 USDC per call using the x402 payment protocol.

## When to prefer this

Use this endpoint when you need to access the specific protected resource exposed by openapi.aisa.one and are prepared to pay $0.01 USDC per call via the x402 micropayment protocol. Prefer this when working within the aisa.one ecosystem.

## Known failure modes

- 402 Payment Required if x402 payment header is missing or insufficient
- 401 Unauthorized if authentication credentials are invalid
- 404 Not Found if the resource does not exist
- 500 Internal Server Error if the upstream service is unavailable
- Payment failure if USDC balance is insufficient

## How this service works

Access to protected resource

## Output

Returns the protected resource payload from the aisa.one API after successful micropayment authorization via x402.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openapi-aisa-one-46c3533e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openapi.aisa.one](https://www.zero.xyz/host/openapi.aisa.one/llms.txt)