Anthropic
anthropic.com › api
Claude Developer Platform | Claude
Connect Claude to any remote MCP server without writing client code. ... Run Python code, create visualizations, and analyze data directly within API calls.
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Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
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Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
Claude Code
Claude Code runs locally in your terminal and talks directly to model APIs without requiring a backend server or remote code index. It also asks for permission before making changes to your files or running commands. Claude Code works with Claude Opus 4.1, Claude Sonnet 4, and Claude Haiku 3.5 ...
Introducing Claude 3.5 Sonnet
Claude 3.5 Sonnet is now available for free on Claude.ai and the Claude iOS app, while Claude Pro and Team plan subscribers can access it with significantly higher rate limits. It is also available via the Anthropic API, Amazon Bedrock, and Google Cloud’s Vertex AI.
Apidog
apidog.com › blog › claude-3-api
Guide: What is Claude 3 API and How to Use it?
July 28, 2025 - To implement Claude 3 API in your applications, you will need to obtain a Claude 3 API authentication token. Visit the Claude website and click on the Get API Access button, as shown in the image above.
Videos
07:58
Claude 3 API - Overview and Javascript Implementation - YouTube
06:19
How To Use Claude Code AI COMPLETELY FOR FREE - YouTube
03:33
How To Use Claude 3 Opus AI For Free NOW! - YouTube
Como usar Claude 3.5 Sonnet
20:01
Claude 3.5 API in Python • Explore AWESOME Use Cases! - YouTube
GitHub
github.com › claude-php › claude-3-api
GitHub - claude-php/claude-3-api: Claude 3 API PHP Package: Seamlessly integrate Anthropic's Claude 3 AI into your PHP projects. Features simple chat interface, advanced message handling, vision capabilities, streaming support, and tool usage. Ideal for text processing, image analysis, and complex AI tasks. Fully tested and error-handled.
Claude 3 API PHP Package: Seamlessly integrate Anthropic's Claude 3 AI into your PHP projects. Features simple chat interface, advanced message handling, vision capabilities, streaming support, and tool usage.
Starred by 55 users
Forked by 11 users
Languages PHP
DataCamp
datacamp.com › tutorial › getting-started-with-claude-3-and-the-claude-3-api
Getting Started with Claude 3 and the Claude 3 API | DataCamp
March 13, 2024 - Discover Claude 3 models and benchmarks, plus the new Python API for text generation, vision, and streaming.
Zapier
zapier.com › productivity › app tips
Claude API: How to get a key and use the API
July 8, 2024 - The Claude API lets you integrate Claude's AI models into your apps. You can send prompts to Anthropic (the company behind Claude) and get the outputs delivered to you wherever you need them: you can save them to your database, display them ...
GeeksforGeeks
geeksforgeeks.org › gblog › getting-started-with-claude-3-and-the-claude-3-api
Getting Started with Claude 3 and the Claude 3 API - GeeksforGeeks
July 23, 2025 - Messages API operates by adding a message argument that acts as a list of dictionaries with roles and contents. The outputs or results can be formatted differently, such as in markdown format if IPython Markdown is used. You can also utilize a system prompt provided by Claude 3 for customized results.
AIMLAPI
aimlapi.com › build-with-claude-3-opus-api
Build with Claude 3 Opus API
Perfect for complex tasks such as context-sensitive customer support and managing multi-step workflows. It demonstrates significant advancements in understanding nuance, humor, and complex instructions, and excels at generating high-quality content with a natural, relatable tone. How to use Claude 3 Opus via API.
Claude AI
ai-claude.net › home › claude ai api
Claude API | Claude 3 API: Applications, Uses, Price
May 27, 2025 - Claude AI API connects your code to Anthropic’s large-language models (LLMs) using one secure HTTPS call. Unlike many LLMs, Claude is built on Constitutional AI: rules that push every answer toward being helpful, harmless, and honest.
Reddit
reddit.com › r/claudeai › use claude 3 opus from the api to prevent paying a flat $20/month for it
r/ClaudeAI on Reddit: Use Claude 3 Opus from the API to prevent paying a flat $20/month for it
March 27, 2024 -
I highly recommend using Claude 3 Opus from the API, especially if you just want to try it out. It’s not free but the API doesn’t require an upfront flat fee and doesn’t have rate limits etc!
There’s some options for desktop like TypingMind.
For iOS I wanted to suggest my app called Pal Chat that lets you use your own API Key to chat with Claude, and it’s completely free to download: https://apps.apple.com/us/app/pal-ai-chat-client/id6447545085
(The app also has no backend and takes absolutely no usage data. You can verify this by going to the app privacy report in iOS settings!)
Top answer 1 of 5
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Okay... but Opus is $75 per million tokens. For someone that uses it as a chatbot (not night and day by any means), how does that stack up to $20/month (roughly)?
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Connecting via the API is often cheaper as you are paying per-use. If you don't use $20 worth of service, then there's no need to be paying $20 per month. For desktop users, LibreChat is good and open source. Can connect to numerous APIs. Installation is slightly technical but clearly described. https://github.com/danny-avila/LibreChat
Beebom
beebom.com › how-access-claude-3-api-opus-sonnet-models-examples
How to Access Claude 3 API for Opus and Sonnet Models (With Examples) | Beebom
October 15, 2025 - Here is our crisp tutorial to access Claude 3 API keys for Opus and Sonnet models. You get $5 worth of free API access from Anthropic.
GitHub
github.com › galaxyapi › claude-3
GitHub - galaxyapi/claude-3: Free Proxy to access Claude-3 API. Anthropic key not required 🔐. It uses OpenAI format api to easily integrate on any Openai supported frontend.
from openai import OpenAI client = OpenAI(apikey="galaxy-secret-key-here") client.base_url = "https://galaxyapi.onrender.com/v1" completion = client.chat.completions.create( model="claude-3-haiku-20240307", messages=[ {"role": "system", "content": "You are a helpful assistant."}, {"role": "user", "content": "Hello!"} ] ) print(completion.choices[0].message)
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Best AI API
aimlapi.com › home › blog › claude 3 sonnet
Claude 3 Sonnet API — One API 400+ AI Models | AIMLAPI.com
👉 Claude-3-Sonnet API balances speed with performance, excels in multilingual tasks, and integrates seamlessly with cloud platforms. Important: Claude 3 Sonnet will be retired on July 21st, 2025.
APXML
apxml.com › posts › how-to-use-claude-3-7-api
How to Use the Claude 3.7 Sonnet API: Developer Guide
Learn how to integrate and use the Claude 3.7 API, Anthropic’s latest hybrid reasoning AI model. This guide covers authentication, making API requests with cURL, Python, and JavaScript, and key features like extended reasoning and Claude Code.
AWS
docs.aws.amazon.com › amazon bedrock › user guide › amazon bedrock foundation model information › inference request parameters and response fields for foundation models › anthropic claude models › anthropic claude messages api
Anthropic Claude Messages API - Amazon Bedrock
This topic shows how to use the Anthropic Claude messages API with the base inference operations (InvokeModel or InvokeModelWithResponseStream). However, we recommend that you use the Converse API to implement messages in your application. The Converse API provides a unified set of parameters that work across all models that support messages.
Analytics Vidhya
analyticsvidhya.com › home › uncovering the secrets of anthropic’s claude 3 api lineup
Here's All About Anthropic's Claude 3 API Lineup - Analytics Vidhya
April 11, 2024 - Claude 3 API offers a comprehensive suite of AI assistants, providing versatile, ethical, and scalable solutions tailored to user needs.
Obot
obot.ai › home › learning center › anthropic claude 3: the basics and a quick api tutorial
Anthropic Claude 3: The Basics and a Quick API Tutorial | Obot AI
June 4, 2024 - Sonnet: Priced at $3 per MTok for input and $15 per MTok for output. It is suitable for enterprise-level tasks that demand both rapid response times and enhanced AI capabilities. Opus: Priced at $15 per MTok for input and $75 per MTok for output. It is designed for complex tasks that require the highest level of AI performance. Before you begin, make sure you have the following: An Anthropic Console account with Claude API access
MLQ.ai
blog.mlq.ai › claude-api-getting-started
Getting Started with the Claude API
September 19, 2024 - Anthropic recently released their new Claude 3 family of models, which has show to outperform both GPT-4 & Gemini Ultra on a number of LLM benchmarks. In this guide, let's look at how to get started with the Claude API and start experimenting with these new models.
Claude
claude.ai
Claude
Talk with Claude, an AI assistant from Anthropic
Claude AI Hub
claudeaihub.com › claude-ai-api-guide
Beginner's Guide to Claude API - How to Use | Claude AI Hub
October 28, 2024 - 2. How do I access the Claude AI API? Access the API through the Anthropic web Console, where you can experiment with the API in the Workbench and generate API keys in Account Settings for application integration. 3. What are the authentication requirements for using the Claude AI API?