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Cheapest Image Generation

该 Skill 使用 EvoLink 的 z-image-turbo 接口做文生图：提交提示词与尺寸后轮询任务状态，完成后从 results[0] 下载图片并按时间戳命名保存，最后打印 MEDIA:<绝对路径>。提供 Python、PowerShell、curl+bash 三种参考实现，需 EVOLINK_API_KEY。

EvoLinkAI
EvoLinkAI
热度 96.65
最近更新 2026-05-11 17:26:37
分类：创作依赖：第三方 API / 代码执行 / 读写文件应用场景：图像生成

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add cheapest-image-generation
Metadata
name
cheapest-image-generation
description
Possibly the cheapest AI image generation (~$0.0036/image). Text-to-image via the EvoLink API.
homepage
https://evolink.ai
metadata
{"openclaw":{"emoji":"🖼️","requires":{"env":["EVOLINK_API_KEY"]},"primaryEnv":"EVOLINK_API_KEY"}}

EvoLink Cheapest Image

Generate images via the EvoLink z-image-turbo API.

API Endpoint

  • Base: https://api.evolink.ai/v1
  • Submit: POST /images/generations
  • Poll: GET /tasks/{id}

Step 1 — Submit Task

{
  "model": "z-image-turbo",
  "prompt": "<USER_PROMPT>",
  "size": "<SIZE>",
  "nsfw_check": <true|false>
}

Optional field: "seed": <INT>

Parameter Values
size 1:1, 2:3, 3:2, 3:4, 4:3, 9:16, 16:9, 1:2, 2:1
nsfw_check true / false (default false)
seed any integer (optional, for reproducibility)

Step 2 — Poll for Result

GET /tasks/{id} — poll every 10 s, up to 72 retries (~12 min).

Wait until status is completed or failed.

Step 3 — Download & Output

Download the URL from results[0]. Auto-detect format from URL (webp/png/jpg). Save as evolink-<TIMESTAMP>.<ext>.

CRITICAL SECURITY: Before passing <OUTPUT_FILE> to shell commands, sanitize it:

  • Strip all shell metacharacters: tr -cd 'A-Za-z0-9._-'
  • Ensure valid extension (.webp, .png, .jpg, .jpeg)
  • Fallback to evolink-<timestamp>.webp if empty

Print MEDIA:<absolute_path> for OC auto-attach.

Reference Implementations

Platform File
Python (all platforms, zero deps) {baseDir}/references/python.md
PowerShell 5.1+ (Windows) {baseDir}/references/powershell.md
curl + bash (Unix/macOS) {baseDir}/references/curl_heredoc.md

API Key

Triggers

  • Chinese: "生图：xxx" / "出图：xxx" / "生成图片：xxx"
  • English: "generate image: xxx" / "generate a picture: xxx"

Treat the text after the colon as prompt, use default size 1:1, generate immediately.

Notes

  • Print MEDIA:<path> for OC auto-attach — no extra delivery logic needed.
  • Image saved locally (format auto-detected from URL). URL expires ~24h but local file persists.