Model Kit.
2 · UnderstandEvery model you need, behind one interface. Build on the best model for each job and switch when something better or cheaper arrives. Your product keeps running while the model landscape keeps moving.
242 APIs in this kitAPIs in the Model Kit
242 servicesResume Optimizer (ATS) API
Rewrite a resume for a target job title and get before and after ATS scores, the improved version, and the list of keywords added.
Sumalya APIsVerifiedAdvanced Website Similarity Analysis API
Compare a list of website URLs and get an overall similarity score, per-site SEO scores, AI summaries, and concrete improvement suggestions.
Sumalya APIsVerifiedInterview Prep Pack API
Generate interview questions and target answers from a job title and resume content. Built for structured hiring prep tied to a real candidate.
Sumalya APIsVerifiedAdvanced Shortlist API
Rank resume summaries against a job title and get topCandidates plus an executiveReport. Built for fast HR screening and shortlist review.
Sumalya APIsVerifiedSkill Extraction API
Extract technical skills, soft skills, certifications, and years of experience from resume text for ATS parsing, scoring, and profile enrichment.
Sumalya APIsVerifiedValidate HTML API
Validate raw HTML for JSON-LD, microdata, meta tags, Open Graph, and Twitter cards. Returns warnings, errors, and rich result eligibility.
Dynamic OG Image API
Generate Open Graph images from title and styling fields. Returns a binary image for blog posts, product pages, and social sharing cards.
Job Description Generator API
Generate a full job description from a role title and requirements. Returns ATS, LinkedIn, and interview scorecard versions for hiring teams.
Sumalya APIsVerifiedDetect Tech Stack API
Tech stack API that takes any webpage URL and returns the frameworks, CMS, analytics and libraries it runs on as a JSON list. Free tier, no card.
Convert HTML to Markdown API
Convert any webpage URL into clean Markdown with title, character count, and a readability flag. Built for content ingestion, archiving, and docs.
Advanced Webpage to PDF API
Convert any http or https page into a PDF binary. Set page size, margins, headers, footers, and background printing for archive-ready output.
Convert and Format raw HTML to PDF API
Convert raw HTML into a PDF file with page size, margins, orientation, and background control. Built for invoices, reports, and exports.
Which Model API do you need?
The question you arrived with, and the API that answers it.
What is the Model Kit?
The Model Kit is the model layer of your product: chat, reasoning, summarization and classification through one consistent interface across providers.
You choose the right model per task, compare cost and quality, and move fast when the market shifts, without rebuilding integrations each time.
How AI products use it
- Send chat to one provider and summaries to another, through the same interface.
- Switch providers when price or quality changes, without rewriting code.
- Add new models as they launch while your integration stays the same.
Why not build it in-house?
Each capability in the Model Kit looks simple to build. The hard part is keeping it accurate, available and up to date once your product depends on it.
- Provider integrationsEach LLM provider has its own SDK, auth, error codes and rate limits. Every one you add is another integration to keep current.
- Model churnNew models launch and old ones are retired every few months. Each switch means re-testing prompts, outputs and costs across your product.
- Outages and rate limitsWhen a provider slows down or goes down, your product does too, unless you have built retries, fallbacks and quota handling yourself.
- Cost trackingToken prices differ per model and change often. Knowing what each feature costs you needs metering you have to build and maintain.
Do you run an API that belongs in the Model Kit?
Publish it on ApyHub and put it in front of the teams and AI agents building with the Model Kit. Your API joins the catalog under one subscription, becomes callable through MCP, and earns from every call.
Questions about the Model Kit
What is the ApyHub Model Kit?
The Model Kit is the model layer of your product: chat, reasoning, summarization and classification through one consistent interface across providers.
What is an LLM API?
An LLM API lets your software send prompts or chat messages to a large language model and receive generated text back. It is how AI products add chat, summaries, classification and agent reasoning.
Is the Model Kit OpenAI-compatible?
Yes. Chat Completion Generation follows the OpenAI chat format, so code written for OpenAI-style chat completions works with minimal changes.
Can I choose the model provider per request?
Yes. You choose the provider on each request, so you can route different tasks to different providers and switch when price or quality changes.
When should I use the advanced chat completion API?
Use Advanced Chat Completion Generation when you need tools, streaming, web search or structured output. Use Simple Chat Prompt for a single prompt and response.
Can I test Model Kit APIs before integrating them?
Yes. Every API has a Try it panel on its service page. Your key is filled in, you send a real request and see the actual response in your browser before you write any code.
Can AI agents use the Model Kit?
Yes. Every endpoint is MCP-ready. Connect ApyHub MCP to Claude, ChatGPT, Cursor, Mistral Le Chat or any MCP-compatible agent, and your agent can discover and call these APIs directly.
How is it priced?
Every kit sits under one subscription, paid in atoms, ApyHub's usage unit. Every call shows its cost, and the free Starter plan needs no card.