LeetCode
HackerRank
Project Euler
Codewars
CodeForces
Exercism
interviewing.io
Coderbyte
APIMaster
OpenRouter
BazaarLink
VoidLLM
AnyAPI
liteLLM
Deep Infra
GPT4All
APIMaster is an AI API marketplace offering OpenAI, Claude, and DeepSeek API keys at up to 90% off official pricing. One API key gives you access to all major models with OpenAI-compatible endpoints โ plug directly into Cursor, Claude Code, or any SDK.
Every provider is fingerprint-verified weekly to ensure you're getting the real model. Supports PayPal, USDT, and ePay. No subscription, pay-as-you-go from $1.
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APIMaster's answer:
Next.js, Go, Python (Flask), PostgreSQL
APIMaster's answer:
Fingerprint verification โ we test every provider weekly using behavioral fingerprinting to detect model substitution. You can see which providers serve real models vs fake substitutes on our public leaderboard. No other API marketplace does this.
APIMaster's answer:
APIMaster is the only marketplace that verifies what model you're actually getting. Competitors like OpenRouter route traffic without verification โ you might pay for Claude Opus but receive a cheaper model. APIMaster detects this and only recommends verified providers. Plus, prices are up to 90% off official rates โ you get both cost savings and model authenticity guaranteed.
APIMaster's answer:
Developers who use OpenAI, Claude, or DeepSeek APIs and want to reduce costs without sacrificing model quality. Especially useful for developers in markets where direct API access is expensive or restricted.
APIMaster's answer:
Built after discovering that many cheap API resellers secretly substitute expensive models with cheaper ones. We built fingerprint detection first, then a marketplace that only lists providers that pass verification.
LeetCode is the best platform to help people practice solving coding problems and prepare for technical interviews. The main users are software engineers. LeetCode has over 1,900 questions covering many different programming concepts.
Based on our record, LeetCode seems to be more popular. It has been mentiond 544 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
General Coding Assessment (GCA): the harder of the two, but manageable with preparation. It's done on CodeSignal, either in person or online. To prepare, practice DSA questions on competitive programming sites like LeetCode, Codewars, and CodeChef for 1โ2 weeks, and you should be in good shape. - Source: dev.to / 4 days ago
Category Tool URL How I used it General AI assistant ChatGPT Https://chatgpt.com Breaking down concepts, simulating interviewers, reviewing answers AI writing / reasoning Claude Https://claude.ai Refining behavioral stories and system design explanations Coding practice LeetCode Https://leetcode.com Core DSA practice and timed coding drills Coding explanations NeetCode Https://neetcode.io Pattern-based... - Source: dev.to / 3 months ago
Plain BST. Fine when input is random or the problem doesn't require worst-case guarantees. Tree problems on LeetCode typically assume balanced input and don't ask you to maintain balance yourself. - Source: dev.to / 3 months ago
Your preparation should not be random. Platforms like LeetCode, Codeforces, and GeeksforGeeks are toolsโbut what matters is how you use them. - Source: dev.to / 4 months ago
Bash /path/to/chrome-launcher.sh email001@gmail.com https://leetcode.com. - Source: dev.to / 4 months ago
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
OpenRouter - A router for LLMs and other AI models
Project Euler - Project Euler is a series of challenging mathematical/computer programming problems that will...
BazaarLink - BazaarLink ๆฏๅฐ็ฃ AI API ่ๅๅนณๅฐ๏ผๆดๅ GPT-4oใClaudeใGeminiใDeepSeek ็ญไธปๆตๆจกๅ๏ผๆไพ OpenAI ็ธๅฎน APIใๅฐๅนฃ่จ่ฒปใไธ่ฏๅผ็ตฑไธ็ผ็ฅจ๏ผๅๅฉๅฐ็ฃ้็ผ่ ่ไผๆฅญไธฒๆฅๆๆฐ AI ๆๅใ
Codewars - Achieve code mastery through challenge.
VoidLLM - Self-hosted LLM proxy with load balancing, multi-provider routing, API key management, and usage tracking. Privacy-first โ zero knowledge of your prompts.