Autonomous YouTube - Blog Builder / SEO Autopublisher (Sheets, ChatGPT, Apify, Pexels, WordPress) – Multilanguage

100% autonomous workflow that transforms YouTube videos into unique, high-quality, SEO-optimized blog articles and automatically publishes them to WordPress. No human intervention required: it uses YouTube as the main source for fresh, original content ideas, manages a keyword bank in Google Sheets, finds relevant videos via Apify, transcribes, writes, formats, selects a featured image via Pexels, generates SEO metadata, and publishes.
When all keywords are used, it will automatically generate new ones (avoiding duplicates) to keep producing content without interruptions.

Estimated cost per post (including ChatGPT + Apify (free 5$ new user)) → $0.01 – $0.03 depending on video length.

Includes:

• Access to APIs with 7-day free trials (Apify, Pexels, etc.).
• Step-by-step documentation to get each API key.
• Basic setup support to get you started.

Who it’s for

• Agencies and creators looking to scale blogging from video content.
• SEO teams needing automation with quality control.
• Technical bloggers who want hands-off publishing with tracking.

SEO

• SEO teams needing automation with quality control (modifiable from the options node like including h1, hierarchy among other SEO options).
• The title and description of the page (SEO) is based on the language in which the blog was created
• Allows you to add keywords

How it works (phase summary)

Part 1 – Keyword initialization

• Manual or scheduled trigger.
• Checks if the Google Sheet is empty; if so, generates 10 keywords based on a seed idea and saves them.

Part 2 – Keyword management & blog settings

• Includes an “options” node to configure global blog language and formatting rules (H1, headings, bold, intro, conclusion, etc.).
• Selects a keyword with false status (unused), marks it true with a usage date, and if none are left, generates new ones while avoiding duplicates.

Part 3 – Video search & duplicate filtering

• Searches YouTube via Apify using the keyword, retrieves ~30 results, excludes Shorts, and selects 2 videos based on title/description/hashtags.
• Checks for duplicates; if found, retries up to 5 times with variations.
• If still duplicated, discards the keyword and selects another.

Error Handling & Continuity

Includes fallbacks and failure alerts in every critical node to ensure the workflow keeps running even if a step fails.

Part 4 – Article creation

1. Transcribes the video (cost included in $0.01–$0.03).
2. ChatGPT writes a formal blog post in the language set in the “options” node.
3. A second ChatGPT step applies the formatting rules (structure, H1/H2…, intro/conclusion).
4. Ensures SEO compliance.
5. Converts Markdown → HTML and publishes to WordPress (more info results screenshots).

Part 5 – Image & final publishing

• Searches Pexels API for images using the post keyword.
• ChatGPT chooses the most suitable image; it’s downloaded and attached to the post.
• Generates an SEO title and meta description based on the content.
• Sends an email confirmation with the published URL (with the chosen language, more info screenshots).

Requirements

• OpenAI / ChatGPT (or compatible provider for transcription and writing).
• Google Sheets (keyword storage and usage tracking).
• Apify (YouTube search (free 5$ new user)).
• Pexels API (image sourcing (free api)).
• WordPress REST API (user with permissions to create posts/media).

Costs & limits (important)

• Cost per post: $0.01 – $0.03 (ChatGPT + Apify included (free 5$ new user)).
• Rate limits: respect YouTube/Apify, Pexels, and OpenAI limits.

Thoroughly Tested for Reliability and Performance

• This workflow has been carefully tested in multiple scenarios to ensure optimal functionality, stability, and accuracy.
• Various edge cases and potential failure points were simulated, and fallback mechanisms were implemented to handle unexpected situations.
• The result is a robust and reliable automation you can run confidently in production environments.

The workflow is multi-language and it has been tested to create blogs in (Russian, Spanish, English, German and French) all the results were verified and good

Screenshots

• Is it really autonomous?
• Blog example (Eng) – P1
• Blog example (Eng) – P2
• Blog example (IT)
• Email received

More info and photos: oriolrotllant3@gmail.com