
CodeSignal
HackerRank
Codility
LeetCode
HackerEarth
Coderbyte
DevSkiller
iMocha
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.
CodeSignal
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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.
Based on our record, CodeSignal seems to be more popular. It has been mentiond 27 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.
Mention tools like Slack, Zoom, GitHub Highlight remote work experience or team collaboration Link to your portfolio and GitHub Prepare for video interviews and live coding sessions (HackerRank, CodeSignal, etc.). - Source: dev.to / about 1 year ago
When I started, I programmed many different things in different languages. Then, I found a job as a Junior Java Developer and solved tasks on CodeSignal every day. - Source: dev.to / over 1 year ago
Platforms like HackerRank and CodeSignal host challenges that not only hone your skills but also can put you on the radar of tech companies looking for talent. - Source: dev.to / over 2 years ago
Regularly engaging with problem-solving and algorithm challenges on platforms such as LeetCode, HackerRank, or CodeSignal can significantly sharpen this ability. - Source: dev.to / over 2 years ago
Coding Challenges: Platforms like Project Euler or CodeSignal offer a variety of problems that encourage logical thinking and algorithmic problem-solving. - Source: dev.to / over 2 years 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
Codility - Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
BazaarLink - BazaarLink ๆฏๅฐ็ฃ AI API ่ๅๅนณๅฐ๏ผๆดๅ GPT-4oใClaudeใGeminiใDeepSeek ็ญไธปๆตๆจกๅ๏ผๆไพ OpenAI ็ธๅฎน APIใๅฐๅนฃ่จ่ฒปใไธ่ฏๅผ็ตฑไธ็ผ็ฅจ๏ผๅๅฉๅฐ็ฃ้็ผ่ ่ไผๆฅญไธฒๆฅๆๆฐ AI ๆๅใ
LeetCode - Practice and level up your development skills and prepare for technical interviews.
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.