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  4. Clarifai API
published AI Powered

Clarifai API

The Clarifai API offers developers free access to state-of-the-art computer vision capabilities, including image recognition and object detection, suitable for various applications.

Developed by Clarifai

Live API
99.90%Uptime
300msLatency
2.2kStars
API KeyAuth
NoCredit Card
RESTStyle
v2Version

Reference

API Endpoints

Endpoints

Available routes, request structures, and code examples.

Retrieve available Clarifai AI models

Endpoint URL
https://api.clarifai.com/v2/models
Code Example
curl -X GET 'https://api.clarifai.com/v2/models' \
  -H 'Authorization: Bearer YOUR_API_KEY'
Expected Response
{
  "models": [
    {
      "id": "general-image-recognition",
      "name": "General"
    }
  ]
}
Version:v2
Limit:1,000 operations/month (free tier)

Integration

Quick Start

cURL ExampleREST
curl -X GET "https://api.clarifai.com/v2/v2/models/{model_id}/outputs"

Docs

Technical Documentation

What this API does

The Clarifai API provides robust AI-driven computer vision functionalities. It allows developers to perform operations such as image and video recognition, object detection, facial analysis, and content moderation. With pre-trained models or the option for custom-trained models, developers can easily integrate these capabilities into applications across various sectors, including healthcare, retail, media, and security.

How it works

Developers interact with the Clarifai API by sending HTTP requests. It supports both REST and gRPC protocols, making it flexible for various development environments. On receiving input data, the API processes requests and returns structured JSON responses containing analysis results, predictions, and insights derived from the submitted images or videos. This structured output facilitates straightforward integration into applications.

Authentication

Authentication for the Clarifai API is managed through API keys. Developers need to create an account on Clarifai and obtain an API key to authorize their requests and ensure secure access to the API features.

Example usage

  • /v2/models/{model_id}/outputs - Submit an image for recognition using a specified model.
  • /v2/models/{model_id}/train - Initiate the training of a custom model.
  • /v2/models/{model_id}/outputs?input=IMAGE_URL - Get predictions for a given image URL.

Limits

The Clarifai API offers 1,000 free operations per month. Further usage may require a paid subscription or different pricing tier, but specific rate limits beyond this offer are not detailed in the provided documentation.

Ideal use cases

  • Building applications for real-time image recognition in retail environments.
  • Creating software for content moderation in user-submitted images.
  • Integrating facial recognition capabilities into security systems.
  • Developing AI-enhanced applications in health and wellness for image analysis.

Examples

Real-World Applications

  • Implementing AI-powered image and video recognition in mobile apps
  • Automating content moderation for user-generated images and videos
  • Enhancing e-commerce platforms with automatic product tagging and categorization
  • Building intelligent virtual assistants with natural language and image analysis
  • Improving security systems with facial recognition and object detection

Evaluation

Advantages & Limitations

Advantages
  • ✓ Wide range of pre-trained and customizable AI models
  • ✓ Supports multiple programming languages with official SDKs
  • ✓ No credit card required for free tier with 1,000 free operations/month
  • ✓ Comprehensive documentation and support resources
Limitations
  • ✗ Rate limits can be restrictive on free tier
  • ✗ Pricing scales with usage which may be costly for high-volume needs
  • ✗ Custom model training requires some AI/ML knowledge
  • ✗ Limited support for some less common programming languages

Support

Frequently Asked Questions

Important Notice

Verify Before You Decide

Last verified · Apr 30, 2026

The details on this page — including pricing, features, and availability — are based on our last review and may not reflect the provider's current offering. Providers update their products frequently, sometimes without prior notice.

What may have changed

Pricing Plans
Features & Limits
Availability
Terms & Policies

Always visit the official provider website to confirm the latest pricing, terms, and feature availability before subscribing or integrating.

Check official site

External Resources

Documentation Official Website Pricing Details Postman Collection

API Specifications

v2
Pricing Model
Tiered subscription with pay-as-you-go options
Credit Card
Not Required
Response Formats
JSON
Supported Languages
7 Languages
SDK Support
Python, JavaScript, Java, Ruby, Go, C#
Rate Limit

Varies by plan - commonly 1000 requests/min for paid plans

Time to Hello World

Less than 1 hour for basic integration with SDKs

Free Tier

1,000 free operations per month with no credit card required

Best For

Developers seeking robust AI vision and NLP capabilities for production applications

Not Ideal For

Projects requiring very high volume usage without budget for paid plans

Tags

#custom-models#moderation#ai#image-recognition#computer-vision#clarifai#object-detection

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