Helix-API Blog
Tutorials, guides, and product updates
Written by developers building Helix-API and the developers using it in production.
The Best QR Code API for Developers in 2026
What to look for in a QR code API — formats, customization, error correction — and how to generate one in a single request.
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How to Convert HTML to PDF With an API
A developer's guide to generating PDF documents from HTML, Markdown, or a URL — invoices, reports, and contracts on demand.
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Website Screenshot API: The Complete Developer Guide
How to capture pixel-perfect screenshots of any website programmatically — full-page, custom viewport, and dynamic OG images.
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How to Call GPT, Claude & Gemini With One API Key
Stop juggling provider SDKs. Route prompts to every major LLM through a single endpoint and switch models with one parameter.
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The Best Free Text-to-Speech API for Developers
Add natural-sounding voice to your app — how text-to-speech APIs work, voices and languages, and a one-request example.
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How to Generate Images From Text With an API
A practical guide to text-to-image generation — how the APIs work, what to send, and how to ship AI images in production.
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Getting Started with Helix-API: Your First API Call in 60 Seconds
Learn how to sign up, get your API key, and make your first request to any of our 20 APIs.
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How to Use the Multi-LLM Router to Compare AI Models
Send the same prompt to GPT, Claude, Gemini, and Llama simultaneously and compare outputs.
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Build a Custom SEO Tool with the Google SERP API
Track rankings, analyze competitors, and find content gaps using structured search data.
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10 Real-World Use Cases for AI Text Summarization APIs
From news readers to meeting notes — practical applications of AI summarization.
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Generate Dynamic Social Media Previews with the Screenshot API
Automate OG image generation by capturing styled HTML templates as screenshots.
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