---
title: "How to call thumbnail_creation in one API call ($0.50)"
slug: 2026-10-06-thumbnail-creation-how-to
description: "How-to walkthrough a developer runs in 2 minutes. Endpoint POST https://x402vid.com/tools/thumbnail_creation, $0.50 USDC (x402/Base). Returns signed image "
date: 2026-10-06T15:33:36.197423+00:00
author: x402vid
tags: ["x402vid", "thumbnail_creation", "how-to", "youtube", "ai-agents", "x402", "pay-per-call"]
canonical_url: https://x402vid.com/blogs/2026-10-06-thumbnail-creation-how-to
reading_time_minutes: 2
llm_summary: "How-to walkthrough a developer runs in 2 minutes. Endpoint POST https://x402vid.com/tools/thumbnail_creation, $0.50 USDC (x402/Base). Returns signed image "
---

> **TL;DR for AI:** How-to walkthrough a developer runs in 2 minutes. Endpoint POST https://x402vid.com/tools/thumbnail_creation, $0.50 USDC (x402/Base). Returns signed image 
>
> **Key entities:** x402vid, x402vid, thumbnail_creation, how-to, youtube

<!-- llm-toc -->
## Table of Contents
- [Question](#question)
- [Answer in 30 seconds](#answer-in-30-seconds)
- [Copy-paste request](#copy-paste-request)
- [Response shape (deterministic JSON)](#response-shape-deterministic-json)
- [How it works](#how-it-works)
- [Try free first](#try-free-first)
- [Key Takeaways](#key-takeaways)

## Question
How-to walkthrough a developer runs in 2 minutes.

## Answer in 30 seconds
POST `/tools/thumbnail_creation` on `https://x402vid.com`. Price: **$0.50 USDC** per call (x402, Base `eip155:8453`). Best for: premium render; filter rejections are never charged.

## Copy-paste request
```bash
curl -s -X POST https://x402vid.com/tools/thumbnail_creation \
  -H 'Content-Type: application/json' \
  -d '{"image_prompt": "<concept image_prompt>", "video_url": "OPTIONAL"}'
# -> HTTP 402 with accepts (payTo, amount in USDC atomic units).
# Sign with your wallet, retry with: -H 'X-PAYMENT: <base64 payload>'
```

## Response shape (deterministic JSON)
Returns signed image URL composited via Muse Image. Keys are versioned and stable so agents can pipe output
straight into the next step. Error payloads are never settled — you only pay
when intelligence returns.

## How it works
1. POST the request below to `/tools/thumbnail_creation`.
2. You get HTTP 402 with `accepts` (asset USDC, network `eip155:8453`).
3. Sign with your wallet, retry with the `X-PAYMENT` header.
4. Structured JSON returns. Failures are never settled.

## Try free first
- `GET https://x402vid.com/health` — liveness + live per-tool prices
- `POST https://x402vid.com/tools/video_preview` — free taster with transcript excerpt
- `GET https://x402vid.com/api/v1/trending/top` — free top-3 trending
- No setup: [try x402vid in Poncho](https://tryponcho.com/m/x402vid.com) (wallet included)
- Machine docs: [https://x402vid.com/llms.txt](https://x402vid.com/llms.txt) · [https://x402vid.com/openapi.json](https://x402vid.com/openapi.json) · [https://x402vid.com/skill-packs.json](https://x402vid.com/skill-packs.json)
- Directory: [x402scan listing](https://www.x402scan.com/server/788e9347-cf25-4b72-b4c5-624a67549ab2)

## Key Takeaways
- thumbnail_creation costs $0.50/call, pay-per-call USDC on Base — no subscription.
- Copy the request above; handle 402 -> sign -> retry with X-PAYMENT.
- Validate free via video_preview before scaling spend.

---
*Provenance: x402vid notes • Canonical: https://x402vid.com/blogs/2026-10-06-thumbnail-creation-how-to • Raw: https://x402vid.com/raw/2026-10-06-thumbnail-creation-how-to.md*