# GradeTV Prepaid API Credit

> GradeTV Prepaid API Credit is a paid API for AI agents from gradetv.net, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-14).

Purchases a $0.10 prepaid credit token for accessing GradeTV's suite of APIs

## Facts

- Endpoint: POST https://gradetv.net/api/credito?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gradetv-prepaid-api-credit-9b0ea150
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tBoQQgUmKaUl5IN9v2i1B

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 gradetv-prepaid-api-credit-9b0ea150 -d '<json body>'
```

Example prompt: Add $0.10 of prepaid credit to my GradeTV API account so I can start making API calls.

## When to prefer this

Use this endpoint when an agent needs to fund GradeTV API access before calling other gradetv.net endpoints (such as the monthly chat or adult content APIs). This is a micro-payment credit top-up specific to the GradeTV platform, not a general-purpose payment API.

## Known failure modes

- Insufficient USDC balance — payment fails if wallet lacks funds
- Invalid or missing payment header — x402 payment protocol not correctly attached
- Duplicate credit purchase not idempotent — calling twice charges twice
- Network or gateway timeout — credit may not be applied
- Account not found or unauthorized — credit cannot be assigned

## How this service works

Crédito pré-pago de $0.10 para as APIs da casa

## Output

A confirmation that $0.10 USDC has been charged and prepaid credit has been added to the GradeTV API account, likely returning a credit balance or access token that unlocks subsequent API calls on the platform.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gradetv-prepaid-api-credit-9b0ea150/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gradetv.net](https://www.zero.xyz/host/gradetv.net/llms.txt)