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PostNitro Carousel Generator

Generate professional social media carousel posts using the PostNitro.ai Embed API. Supports AI-powered content generation and manual content import for Link...

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Generate professional social media carousel posts using the PostNitro.ai Embed API. Supports AI-powered content generation and manual content import for Link...

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Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
references/api-reference.md, examples/EXAMPLES.md, examples/generate-from-text.json, examples/generate-from-x-post.json, examples/import-default.json, examples/import-infographics.json

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Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
2.0.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 17 sections Open source page

PostNitro Carousel Generator

Generate social media carousel posts via the PostNitro.ai Embed API. Two workflows: AI generation (topic/article/X post โ†’ carousel) and content import (your own slides, with optional infographics).

Setup

Sign up at https://postnitro.ai (free plan: 5 credits/month) Go to account settings โ†’ "Embed" โ†’ generate an API key Set up your template, brand, and AI preset in the PostNitro dashboard Set environment variables: export POSTNITRO_API_KEY="your-api-key" export POSTNITRO_TEMPLATE_ID="your-template-id" export POSTNITRO_BRAND_ID="your-brand-id" export POSTNITRO_PRESET_ID="your-ai-preset-id" Base URL: https://embed-api.postnitro.ai Auth header: embed-api-key: $POSTNITRO_API_KEY

Core Workflow

All carousel creation is asynchronous: Initiate โ†’ Poll Status โ†’ Get Output.

1. Generate a carousel with AI

curl -X POST 'https://embed-api.postnitro.ai/post/initiate/generate' \ -H 'Content-Type: application/json' \ -H "embed-api-key: $POSTNITRO_API_KEY" \ -d '{ "postType": "CAROUSEL", "templateId": "'"$POSTNITRO_TEMPLATE_ID"'", "brandId": "'"$POSTNITRO_BRAND_ID"'", "presetId": "'"$POSTNITRO_PRESET_ID"'", "responseType": "PNG", "aiGeneration": { "type": "text", "context": "5 tips for growing your LinkedIn audience in 2026", "instructions": "Professional tone, actionable advice" } }' Returns { "success": true, "data": { "embedPostId": "post123", "status": "PENDING" } }. Save the embedPostId. aiGeneration.type values: "text" โ€” context is the text content to turn into a carousel "article" โ€” context is an article URL to extract and convert "x" โ€” context is an X (Twitter) post or thread URL See examples/generate-from-text.json, examples/generate-from-article.json, and examples/generate-from-x-post.json.

2. Import your own slide content

curl -X POST 'https://embed-api.postnitro.ai/post/initiate/import' \ -H 'Content-Type: application/json' \ -H "embed-api-key: $POSTNITRO_API_KEY" \ -d '{ "postType": "CAROUSEL", "templateId": "'"$POSTNITRO_TEMPLATE_ID"'", "brandId": "'"$POSTNITRO_BRAND_ID"'", "responseType": "PNG", "slides": [ { "type": "starting_slide", "heading": "Your Title", "description": "Intro text" }, { "type": "body_slide", "heading": "Key Point", "description": "Details here" }, { "type": "ending_slide", "heading": "Take Action!", "cta_button": "Learn More" } ] }' Returns same response format with embedPostId. Slide rules: Exactly 1 starting_slide (required) At least 1 body_slide (required) Exactly 1 ending_slide (required) heading is required on every slide Slide fields: heading (required), sub_heading, description, image (URL), background_image (URL), cta_button, layoutType, layoutConfig. For infographic slides, set layoutType: "infographic" on body slides โ€” replaces the image with structured data columns. See examples/import-infographics.json and references/api-reference.md for full infographics config.

3. Check post status

curl -X GET "https://embed-api.postnitro.ai/post/status/$EMBED_POST_ID" \ -H "embed-api-key: $POSTNITRO_API_KEY" Poll every 3โ€“5 seconds until data.embedPost.status is "COMPLETED". The logs array shows step-by-step progress.

4. Get the output

curl -X GET "https://embed-api.postnitro.ai/post/output/$EMBED_POST_ID" \ -H "embed-api-key: $POSTNITRO_API_KEY" Returns downloadable URLs in data.result.data: PNG: Array of URLs (one per slide) PDF: Single URL See references/api-reference.md for full response schemas.

Pattern 1: LinkedIn thought leadership carousel

Generate a carousel from a topic with professional tone: { "aiGeneration": { "type": "text", "context": "5 mistakes startups make with their LinkedIn strategy and how to fix each one", "instructions": "Professional but conversational tone. Each slide should have one clear takeaway." } }

Pattern 2: Repurpose a blog post

Turn an existing article into a carousel: { "aiGeneration": { "type": "article", "context": "https://yourblog.com/posts/social-media-strategy-2026", "instructions": "Extract the 5 most actionable points. Keep slide text concise." } }

Pattern 3: Repurpose an X thread

Convert a viral X thread into a visual carousel: { "aiGeneration": { "type": "x", "context": "https://x.com/username/status/1234567890", "instructions": "Maintain the original voice and key points" } }

Pattern 4: Data-driven infographic carousel

Import slides with structured infographic layouts: See examples/import-infographics.json for a complete example with grid and cycle layouts.

Content Strategy Tips

LinkedIn: Professional tone, actionable insights, 6โ€“10 slides, clear CTA. Instagram: Visual-first, concise text, 5โ€“8 slides, storytelling arc. TikTok: Trendy, punchy, 4โ€“7 slides, hook on slide 1. X (Twitter): Data-driven, 3โ€“6 slides, provocative opening.

Common Gotchas

Default responseType is PDF โ€” always specify "PNG" explicitly if you want individual slide images. heading is required on every slide โ€” omitting it returns an error. Slide structure is strict โ€” exactly 1 starting, at least 1 body, exactly 1 ending. Article type needs a URL โ€” "article" type expects a URL as context, not plain text. X type needs an X post URL โ€” "x" type expects https://x.com/... or https://twitter.com/... as context. Infographics replace images โ€” setting layoutType: "infographic" overrides any image on that slide. Cyclical infographics use first column only โ€” columnDisplay: "cycle" ignores data in columns 2+. Max 3 columns โ€” columnCount cannot exceed 3 for infographic layouts. Image URLs must be public โ€” image and background_image fields require publicly accessible URLs. Credits vary by method โ€” AI generation costs 2 credits/slide, content import costs 1 credit/slide.

Credits & Pricing

PlanPriceCredits/MonthFree$05Monthly$10250+ (scalable) Content import: 1 credit per slide AI generation: 2 credits per slide

Supporting Resources

Reference docs: references/api-reference.md โ€” Complete endpoint reference with request/response schemas and infographics config Ready-to-use examples: examples/EXAMPLES.md โ€” Index of all examples examples/generate-from-text.json โ€” AI generation from text examples/generate-from-article.json โ€” AI generation from article URL examples/generate-from-x-post.json โ€” AI generation from X post examples/import-default.json โ€” Basic slide import examples/import-infographics.json โ€” Import with infographic layouts

Quick Reference

# Auth Header: embed-api-key: $POSTNITRO_API_KEY # AI generation POST /post/initiate/generate { postType, templateId, brandId, presetId, responseType?, requestorId?, aiGeneration: { type, context, instructions? } } # Content import POST /post/initiate/import { postType, templateId, brandId, responseType?, requestorId?, slides: [{ type, heading, ... }] } # Check status (poll until COMPLETED) GET /post/status/{embedPostId} # Get output (download URLs) GET /post/output/{embedPostId}

Tips for the Agent

Always confirm the user has set POSTNITRO_API_KEY, POSTNITRO_TEMPLATE_ID, POSTNITRO_BRAND_ID before calling any endpoint. POSTNITRO_PRESET_ID is only required for AI generation, not for content import. For "article" type, the context must be a URL โ€” not article text. For article text, use "text" type. For "x" type, the context must be an X/Twitter post URL. Default responseType is "PDF" โ€” always pass "PNG" if the user wants individual slide images. When importing slides, always structure as: 1 starting_slide โ†’ 1+ body_slide โ†’ 1 ending_slide. For data-heavy content, suggest using infographic layouts on body slides instead of plain text. Poll GET /post/status/{embedPostId} every 3โ€“5 seconds โ€” don't hammer the endpoint. After getting output, the data field contains download URLs โ€” present them to the user directly. If the user doesn't specify a platform, suggest LinkedIn (most common carousel use case). Warn users about credit costs upfront: AI generation is 2x the cost of content import.

Category context

Code helpers, APIs, CLIs, browser automation, testing, and developer operations.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package
4 Config2 Docs
  • examples/EXAMPLES.md Docs
  • references/api-reference.md Docs
  • examples/generate-from-text.json Config
  • examples/generate-from-x-post.json Config
  • examples/import-default.json Config
  • examples/import-infographics.json Config