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 servicesGenerate Simple QR Code API
Generate PNG QR codes from text or URLs. Set the image size and get a binary QR response for labels, checkout flows, and print materials.
Dosvak LLCGenerate Random String API
Generate random strings up to 256 characters in alpha, alphanumeric, numeric, or hex form. Built for test data, tokens, and placeholder IDs.
Dosvak LLCGenerate Random Number API
Generate a cryptographically secure integer between a minimum and maximum. The response returns the chosen value and the range used.
Dosvak LLCGenerate Fake Address API
Generate 1 to 50 fake street addresses as plain strings. Built for test data, sample forms, and staging datasets without touching real records.
Dosvak LLCGenerate Hash API
Hash any text string with MD5, SHA1, SHA256, or SHA512. Returns the original input, the algorithm used, and the computed hash for checksums.
Dosvak LLCDescribe Cron API
Break a cron expression into labelled minute, hour, day, month, and weekday fields. Built for schedule previews, cron editors, and readable logs.
Dosvak LLCConvert Units API
Convert a numeric value from one unit to another using value, from_unit, and to_unit. Returns the original units plus the converted result.
Dosvak LLCEncode and Decode JWT API
Encode JSON payloads into JWTs and verify existing tokens with a shared secret. Returns a signed token, or validity plus the decoded payload.
Dosvak LLCEncode and Decode Base64 API
Encode UTF-8 text to Base64 or decode it back to plain text over HTTP. Useful for payload inspection and round-trip checks in scripts.
Dosvak LLCCorrect Text Spelling API
Send text and get it back with the spelling corrected, plus a map of every word that was changed. Built for forms, chat and user content. Try it free.
Dosvak LLCDetect Text Toxicity API
Check comments and messages for toxic or harmful language. Get a toxic or non-toxic verdict with a confidence score in one request. Try it free.
Dosvak LLCAnalyze Multiple Text Sentiment API
Classify text as positive or negative with a confidence score. Handles single messages or batches for feedback triage and content moderation.
Dosvak LLCWhich 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.