Social graphics, infographics, certificates, product cards — generate any visual content programmatically. Built for AI agents and automation workflows.
Real outputs generated via the API. Social graphics, infographics, certificates, and more.
Type a prompt and see what RendrKit generates in seconds. No signup required.
Tip: Be specific! "Italian restaurant grand opening, March 15, Portland" works better than "restaurant poster". For best results, use the API with direct render — your AI agent picks the perfect template and fills every detail.
Hit Generate to create your image
Usually takes 3-5 seconds
Instagram posts, Twitter cards, LinkedIn banners — sized and ready to publish.
Product cards, flash sales, pricing displays — batch-generate from your catalog.
Flowcharts, mind maps, org charts, timelines, comparisons, SWOT analysis, kanban boards — 100% deterministic.
Course completions, event badges, achievement certificates — personalized at scale.
Eye-catching thumbnails with text overlays, photos, and brand colors.
Dynamic Open Graph images for blogs, docs, and link previews.
No photo fetching, no AI randomness. Same input = same output, every time.
From API call to production image in under 5 seconds
Prompt mode — describe what you want, AI picks the template. Direct Render — specify templateId + slots, zero AI.
POST /api/v1/generate with your prompt or template data. Works from any language or agent framework.
PNG URL returned in under 5 seconds. Store, share, embed anywhere.
const response = await fetch(
'https://api.rendrkit.dev/api/v1/generate',
{
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
prompt: "A morning routine flowchart with 3 steps",
size: "1080x1080"
})
}
);
const { url } = await response.json();const response = await fetch(
'https://api.rendrkit.dev/api/v1/generate',
{
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
templateId: "flowchart",
slots: {
title: "Morning Routine",
icon1: "⏰", step1_title: "Wake Up",
step1_color: "#3B82F6",
step1_desc: "No phone for 30 min, cold water, 5 min stretching",
icon2: "🧠", step2_title: "Focus",
step2_color: "#F59E0B",
step2_desc: "Top 3 priorities, deep work first, no meetings until 11am",
icon3: "🚀", step3_title: "Execute",
step3_color: "#10B981",
step3_desc: "Start hardest task, 25 min sprints, track progress",
bg_color: "#0F172A",
card_bg: "#1E293B",
title_color: "#F1F5F9",
text_color: "#CBD5E1"
},
size: "1080x1080"
})
}
);
const { url } = await response.json();The only image API designed for autonomous agents. Your agent picks the template, fills the slots, gets the image. No human in the loop.
Connect to Claude, Cursor, or any MCP-compatible agent. One command setup.
npm install @rendrkit/mcpAdd as a GPT Action. Your custom GPT generates images on demand — social posts, infographics, certificates.
Available in GPT Store
REST API works with LangChain, CrewAI, AutoGPT, or your custom agent. Function calling schema included.
See Agent Guide →Same input = same output. Every time. Direct Render mode gives you pixel-perfect consistency for batch generation. No AI randomness.
From API call to PNG URL in under 5 seconds. Prompt mode uses AI to pick the best template. Direct Render skips AI entirely.
Social posts, infographics, certificates, product cards, thumbnails, org charts, mind maps, and more. Every template tested across 5 sizes. New templates added weekly.
Start free. Scale as you grow.
Need more? Contact us
Free tier. No credit card. API key in 30 seconds.
Get Free API Key50 free images every month. No strings attached.