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 servicesBest Match Text Search API
Rank candidate strings against a source string using Levenshtein distance. Built for typo correction, deduplication, and closest-match lookup.
ApyHubVerifiedHosted on ApyHubAdvanced Schedule Cron API
Compute upcoming fire times for a 5-field cron expression. Returns next_runs, a count, the timezone, and the reference time used, all in UTC.
Validate Or Generate Barcode Check Digits API
Validate or generate barcode check digits for EAN, UPC, and ISBN values. Returns validity and check-digit fields for product data accuracy.
Check WCAG Color Contrast API
Compare foreground and background colors and get the WCAG 2.1 contrast ratio, AA and AAA pass or fail, luminance values, and a recommendation.
Text Similarity Search API
Compare a source and target string and get a similarity score from 0 to 1. Built for fuzzy matching, duplicate checks, and text ranking.
ApyHubVerifiedHosted on ApyHubText Distance Search API
Compare two strings with Levenshtein distance. Send a source and target, get an integer edit distance for fuzzy matching and typo checks.
ApyHubVerifiedHosted on ApyHubRanked Text Search API
Rank fuzzy matches for a search term against space-separated text. Returns matches with Levenshtein distance for typo-tolerant search.
ApyHubVerifiedHosted on ApyHubDifferentiate Text API
Compare two text or code snippets and get ordered diff segments plus addition, deletion, and unchanged counts for review and change tracking.
ApyHubVerifiedHosted on ApyHubGenerate SVG Badge API
Generate SVG badges from a label and message, with optional colours. Download the SVG or get a signed URL for READMEs, docs, and CI status.
ApyHubVerifiedHosted on ApyHubGenerate Radar Chart API
Generate radar chart images or pre-signed links from titles, labels, and series data. Built for score comparisons, dashboards, and reports.
ApyHubVerifiedHosted on ApyHubGenerate HeatMap Chart API
Calendar Heatmap API: send dated values and a title, get an SVG calendar heatmap as a file or signed URL for activity reports. Free tier, no card.
ApyHubVerifiedHosted on ApyHubGenerate Donut Graph API
Generate donut chart images from a title and labeled data. Returns a binary image or a pre-signed URL for dashboards, reports, and breakdowns.
ApyHubVerifiedHosted on ApyHubWhich 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.