Free-LLM.com
The directory of free LLM APIs: 51+ providers and 272+ free models with their real limits, a comparison tool, an in-browser playground and a weekly log of what changed.
AI & APIs · Classification
CategorizeAPI.com
An API that sorts a URL or a paragraph into one of 25 categories, with a confidence score and a short justification, in about a second.
- fixed categories
- 25
- per request
- ≈ 1 s
- free requests a month
- 250
- prompts to write
- 0
-- The challenge
Classifying sites or content automatically (for advertising, moderation or a directory) takes either an in-house model or fragile prompts. CategorizeAPI provides a stable taxonomy and a structured answer, ready to store.
Deliberately honest copy: no numerical promise that cannot be verified.
-- features
What the site does
01
URL or text
The input type is detected automatically, or forced if needed.
02
Stable taxonomy
25 top-level categories inspired by advertising standards, with a subcategory.
03
Structured answer
Category, subcategory, confidence, justification and processing time in JSON.
04
Free plan
250 requests a month with no credit card, then paid plans.
05
Documentation
Copy-ready examples and detailed error responses.
06
Dashboard
API keys, usage and billing in one place.
-- pipeline
How it is built
API
A single endpoint, key authentication, monthly quotas.
Engine
A language model constrained to the taxonomy, output validated before it is returned.
Billing
A dedicated Stripe account, subscriptions and webhooks.
Protection
Automated sign-up filtering shared with the other SaaS products.
-- screenshots
Screenshots
-- Technologies
- PHP 8
- MySQL
- LLM
- REST API
- Stripe
- Signup guard
-- related
In the same space
SummarizeAPI.com
Text summarisation REST API in 119 languages for developers: 100 free summaries a month, no credit card, then Stripe plans.
PDF-Summarize.com
PDF summaries up to 300 pages, key takeaways and Q&A with cited page numbers, OCR for scans, 20 languages. No sign-up, with an API.
-- let's start something
A project, an idea, a collaboration?
Tell me what you need: I answer personally, usually within 24 hours.