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I have never used an API. What’s the easiest way to use Claude’s?

reddit.com › r › ClaudeAI › comments › 1fdpwla › i_have_never_used_an_api_whats_the_easiest_way_to

console.anthropic.com. The api has a website you can use Answer from jblackwb on reddit.com

Use our API to create new user experiences, products, and ways to work with the most advanced AI models on the market.

reddit.com › r/claudeai › i have never used an api. what’s the easiest way to use claude’s?

r/ClaudeAI on Reddit: I have never used an API. What’s the easiest way to use Claude’s?

September 10, 2024 -

Ive searched this subreddit for answers and I’ve also asked Google, Copilot, and free Claude. I’m sure the answers are out there, so please forgive me that I can’t find them.

Hence I ask for your help. What’s the easiest way for a programming noob to use the Claude API? All I want initially is to ask questions via the API, similar to the subscription version. I want to use the API vs subscription because maybe it’ll be cheaper and I also just want experience with it.

I signed up for an account and have purchased API tokens. I have an API key. But I’m struggling finding concise directions on how to use it.

I’m familiar with the $20/month subscription and want to become familiar with the API as well.

Videos

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How to Create an API Key for Claude - YouTube

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How To Get Your Anthropic / Claude API Key (2025) - YouTube

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How to Get Your Claude API Key (Step-by-Step Guide for 2025) - YouTube

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Claude API Tutorial: How to Get Your Anthropic API Key in 2025 ...

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Anthropic

console.anthropic.com

Claude Developer Platform

Build with the Claude API

Claude

docs.claude.com › en › docs › get-started

Get started with Claude - Claude Docs

curl https://api.anthropic.com/v1/messages \ -H "Content-Type: application/json" \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-sonnet-4-5", "max_tokens": 1000, "messages": [ { "role": "user", "content": "What should I search for to find the latest developments in renewable energy?"

Zapier

zapier.com › productivity › app tips

Claude API: How to get a key and use the API

July 8, 2024 - If you want to add this to the body, you can do so just below the "max_tokens" key/value pair. Two important notes here: Number values don't need quotes around them. Always finish each line with a comma. Curious? You can click Send and see how that changes the output. Postman can only test APIs. If you're using a SaaS app that accepts a Claude key, the app will handle all the functionality without setting up calls—you just have to provide the API key.

Pickaxe

community.pickaxe.co › general › questions

How do I get a Claude API key? - Questions - Pickaxe Community Forum

November 17, 2024 - Okay, so I’m a newbie so go easy on me. This might be dumb but I can’t for the life of me figure out how to get or find a Claude API key. I am wondering if someone can explain how I can get a claude API key from Anthropic. I have two questions basically. How/where do I get the Claude api key?

Nightfall AI

nightfall.ai › ai-security-101 › anthropic-claude-api-key

Anthropic Claude API Key: The Essential Guide | Nightfall AI Security 101

From here, you can click on the "Create New API Key" button to generate a new API key. To use an Anthropic Claude API key, you must include it in the HTTP header of all requests to the Anthropic Claude API.

Find elsewhere

Google Bing Mojeek

Medium

medium.com › @yjg30737 › how-to-get-started-with-claude-api-step-by-step-guide-92b5e35ae0a0

How to Get Started with Claude API: Step-by-Step Guide | by Yjg | Medium

September 24, 2024 - In the Settings tab (Image 1), you’ll find a section labeled API keys. This is where you manage and generate API keys. Each API key allows access to Claude’s capabilities. In this example, an API key has already been created.

Stack Overflow

stackoverflow.com › questions › 79629224 › how-do-i-use-claude-code-with-an-existing-anthropic-api-key

How do I use Claude Code with an existing Anthropic API Key? - Stack Overflow

Top answer

1 of 4

I use my own API key in private projects, and it seems to work like this:
# .env file
ANTHROPIC_API_KEY=sk-...
In the project:
# .claude/settings.json
{
  "apiKeyHelper": "source .env && echo $ANTHROPIC_API_KEY"
}
Then invoke claude in inside the project root and verify with /status command:
Claude Code v1.0.85
  L Session ID: 69...
...
 Account
  L Auth Token: apiKeyHelper
  L API Key: apiKeyHelper

Source: https://github.com/anthropics/claude-code/issues/441#issuecomment-3207226042

If someone get this error: Error getting API key from apiKeyHelper (in settings or ~/.claude.json): /bin/sh: 1: source: not found

That error comes from the fact that your shell (likely /bin/sh) doesn’t recognize the source command — it’s a Bash built-in, not POSIX-standard.

Here's the fix (Force bash):

{ "apiKeyHelper": "bash -c 'source .env && echo $ANTHROPIC_API_KEY'" }

Never teach people to put a secret key in a non-popular env var convention file. Always put it in the popular environment variable file.

2 of 4

Looks like folks found a workaround that actually works: https://github.com/anthropics/claude-code/issues/441#issuecomment-3050967059

Create a ~/.claude/settings.json file with this content:
{
  "apiKeyHelper": "echo <API KEY>"
}

Social Intents

help.socialintents.com › social intents knowledge base › ai chatbots › how to find your anthropic claude api key

How to Find Your Anthropic Claude API Key - Social Intents Knowledge Base

September 28, 2025 - Use this key to integrate Claude into your chatbots, web apps, or internal tools. Need Help with Claude Login or Setup? Check Anthropic’s API documentation for step-by-step guidance.

Claude Docs

platform.claude.com › docs › en › build-with-claude › usage-cost-api

Usage and Cost API - Claude Docs

To retrieve your organization's API key IDs, use the List API Keys endpoint. To retrieve your organization's workspace IDs, use the List Workspaces endpoint, or find your organization's workspace IDs in the Anthropic Console.

Claude Docs

platform.claude.com › docs › en › api › overview

API Overview - Claude Docs

curl https://api.anthropic.com/v1/messages \ --header "x-api-key: $ANTHROPIC_API_KEY" \ --header "anthropic-version: 2023-06-01" \ --header "content-type: application/json" \ --data '{ "model": "claude-sonnet-4-5", "max_tokens": 1024, "messages": [ {"role": "user", "content": "Hello, Claude"} ] }' ... { "id": "msg_01XFDUDYJgAACzvnptvVoYEL", "type": "message", "role": "assistant", "content": [ { "type": "text", "text": "Hello! How can I assist you today?" } ], "model": "claude-sonnet-4-5", "stop_reason": "end_turn", "usage": { "input_tokens": 12, "output_tokens": 8 } }

Anthropic

anthropic.com › learn › build-with-claude

Anthropic Academy: Claude API Development Guide

Resources to help you get started with Claude, whether you're hacking with us at an event or on your own · Set up your developer account and generate API keys on the Anthropic Console.

Pickaxe

pickaxe.co › post › how-to-get-your-claude-api-key-a-step-by-step-guide

How to get your Claude API key: A step-by-step guide (2025) - Pickaxe Blog

October 28, 2025 - For instance, you can enter this key into any of your AI Studios on Pickaxe to use the Claude models and enjoy unlimited usage of them. If you're curious about how API usage differs from credits, you can read this guide on credit systems and ...

Make

apps.make.com › anthropic-claude

Anthropic Claude - Apps Documentation

with anthropic claude modules in {{product name}} , you can create prompts and manage your files, skills, and skill versions in your anthropic claude account get started easily—no anthropic account or api key required you can send prompts without an anthropic account or connection in make using the simple text prompt (beta) module read more in the /#anthropic claude modules section requirements to use the anthropic claude app in {{product name}} , you must request access to their api at https //www anthropic com/earlyaccess for more information, see the https //docs anthropic com/claude/refe

Claude API Reference

platform.claude.com › docs › en › api › admin › api_keys › retrieve

Get Api Key - Claude API Reference

Update Api Key · Usage Report · Cost Report · Completions · Create a Text Completion · Support & configuration · Rate limitsService tiersVersionsIP addressesSupported regionsOpenAI SDK compatibility · Console · Log in · Api keys · Retrieve · Copy page · get/v1/organizations/api_keys/{api_key_id} Get Api Key ·

reddit.com › r/claudeai › do i need to pay for both claude and anthropic to use the api key?

r/ClaudeAI on Reddit: Do I need to pay for both Claude and Anthropic to use the API key?

October 30, 2024 -

I just paid for the Pro version of Claude. Downloaded Cursor and when I went to add the 'API key', it seems like I also need to pay for Anthropic?

I am a little confused. First time doing the Cursor IDE setup. I am a Rider dev.

I want to be able to use Cursor without any limitations. Not bragging but money is not a concern. I make enough as a Software Consultant to afford those memberships.

Also, I heard about bolt.new or something along those lines? I checked it out but it seems towards opinionated out-of-the-box frontend applications.

Any advice?

Thanks!!!