You goofed, the API keys are an entirely different service found here: https://console.anthropic.com/ Answer from smariot2 on reddit.com
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Reddit
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!!!

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Reddit
reddit.com › r/claudeai › [deleted by user]
Free Tier Can't Use API? : r/ClaudeAI
March 6, 2024 - This is a Claude-information subreddit ... [⠀] If your problem requires Anthropic's direct help, visit https://support.anthropic.com/ ... There is no free tier API....
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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!)

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Claude
claude.com › pricing
Pricing | Claude
Explore Claude pricing plans and API costs. Choose from Free, Pro, Max, Team, or Enterprise options to get started with Claude.
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Reddit
reddit.com › r/claudeai › [ removed by moderator ]
How is Claude with a subscription vs. free? : r/ClaudeAI
May 29, 2024 - With free tier means you can just create 5 accounts and rotate for free lol no use for subscriptions. ... Do you have that mindset? While free is useful, we should also learn to appreciate the investments they make into making such a useful ...
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Reddit
reddit.com › r/claudeai › using claude's evaluation access - free, to evaluate performance
r/ClaudeAI on Reddit: Using Claude's Evaluation access - free, to evaluate performance
October 30, 2024 -

Hi,

I want to use Claude's API for some task, and I want to evaluate it's performance before actually commiting and paying them.

I created an API key via their site but when I try to use it I get this error: "anthropic.BadRequestError: Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}}"

But, I haven't even used it once.

someone knows how it can be solved?

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Reddit
reddit.com › r/claudeai › what’s your favorite (free-ish) app to use api tokens with?
r/ClaudeAI on Reddit: What’s your favorite (free-ish) app to use API tokens with?
March 24, 2025 -

I love Claude's official chat apps but the free tier is too limited, while the pro tier too expensive. So... I bought API credits.

I mainly (but not exclusively) use it for programmming-related one-off tasks. Things like "how do you achieve X in Y language?" or "write a short bash script to rename my photos" or "can you explain to me XYZ concept, which I have a hard time grasping".

So, something that manages artifacts would be a plus, but not essential. Code formatting is more important, as well as cross device sync of chats.

I would also like a simple way of choosing whether I want to interact with Haiku or Sonnet.

Any suggestions?

Find elsewhere
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Reddit
reddit.com › r/claudeai › claude api limits
r/ClaudeAI on Reddit: Claude API limits
September 13, 2024 -

I’ve been using the free chat on the website for 3.5 sonnet for coding but it keeps reaching the limit. Is the API unlimited or at least way longer? And does the API work as good?

Top answer
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I HAVE ALREADY TALKED ABOUT IT, SO I WILL JUST COPY TEXT BELOW ================================================= SOLUTION Using Claude through API is solution to many problems (limits reached, Claude errors etc.). In API you pay small price per message (like $0.005). Recommended way of chating with Claude API is through bring-your-own-key (BYOK) app. Ones I would recommend are LibreChat , TypingMind  and CheapAI . They even give Claude additional abilities such as web browsing. First two are really powerful, but potentially expensive, require complex setup/maintenance or are overwhelming to use. CheapAI is my free personal project and easiest/fastest to use, but simpler then first two. However, it has many powerful features and is more than enough for most tasks. It is designed to be as beginner friendly as possible. I use Claude official app as much as I can, and jump to BYOK app when I hit limit in official app. With this approach, I save 15€-20€ per month, because I remain on free plan and do not need to subscribe to pro. I would recommend you do the same. SOLUTION SUMMARY When you official Claude app starts being annoying (limit reached, model being stupid etc.), switch to BYOK app. Use TypingMind/LibreChat if you want something really powerful, but you are ok with additional paying or potential overwhelming complexity. Use CheapAI if you want to fast/easy solution with little less features, but still more then enough for most tasks. Me and my friends use it for same reason as you, coding, and for that it is perfect. Links are above!
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If you set a amount of maximum $ for API use the API will tell you you've reach the API limit. I was set 10$ per month of limit thinking that it's for API auto renewall but i've reach 10$ of API use in this month and stopped. Remove or raise your montly API limit in Anthropic API Billing section, Resolved.
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ClaudeLog
claudelog.com › home › faqs › claude ai is free
How to Use Claude AI for Free | ClaudeLog
API integration for building applications requires paid plan access, and even the $17 annual Pro plan often pays for itself through productivity improvements and time savings with advanced features like Claude Code integration. For the most up-to-date free tier details and upgrade information, consult these official Anthropic sources:
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Reddit
reddit.com › r/claudeai › easiest way to use claude api to avoid daily limits
r/ClaudeAI on Reddit: Easiest way to use Claude API to avoid daily limits
April 13, 2024 -

I switched from GPT-4 to now mostly using Claude 3, but the daily message limits are annoying. Also, I really like the ChatGPT interface better. Claude is missing a features like a button to STOP when it’s streaming a long response that is bad.

I use this project to get my own front-end for Claude 3. It uses the API so I have no daily limit to messages, and I get to use a chat interface that has all the features ChatGPT has. Even if you’re not very technical, it’s easy to set up. https://github.com/allyourbot/hostedgpt

It supports both GPT-4 and Claude 3 so it lets you do really cool things like you’re having a conversation with one of them and you don’t like it’s response, you click the “re-generate” button and you can switch assistants mid-conversation. This animated gif demonstrates. The other day I asked it a technical question and switched assistants and finally got the right answer! https://p425.p0.n0.cdn.zight.com/items/ApuPWXb6/c413f8dc-519f-4f5f-b250-45a7688b99d1.gif

It’s also really nice to have access to both GPT-4 and Claude 3 without committing to $20 per month to either. I just get charged for what I use. For example, OpenAI released a new version of the GPT-4 model last week I’ve been going back to it to see how much they improved it. (I don’t have a well-formed opinion yet).

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AI Free API
aifreeapi.com › en › posts › claude-code-free-tier
Claude Code Free Tier: Complete Guide to Free Access in 2025 | AI Free API
July 5, 2025 - Amazon's answer to Claude Code offers a free tier that provides similar functionality: ... This offering from AWS provides a viable alternative for developers looking for AI assistance in the terminal without Claude Code's cost structure.
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Reddit
reddit.com › r/claudeai › [ removed by moderator ]
Claude Pro vs. API: Which is more cost-effective for daily ...
May 26, 2024 - For desktop & mobile usage, you can try aisudo which support gemma, llama and claude (as API). ... Hey. I wrote the article quoted by ChatGPT in your response! Personally I do the same, use the free quota, then switch to API (with
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Apidog
apidog.com › blog › how-to-use-claude-api-key-for-free-in-2025
How to Use Claude API Key for Free in 2025
October 19, 2025 - While many platforms come with subscription fees or pay-as-you-go models, there are methods to use the Claude API key without spending a dime—at least in the initial stages. This article will help you navigate three different approaches: ... Each option comes with detailed steps and sample code to prove that free exploration is possible in 2025.