# APIMaster vs Kaopu API APIMaster records 210,182 monthly visits with +46.3% month-over-month growth and Paid pricing. Kaopu API records 0 monthly visits with 0% growth and pay_as_you_go pricing. | Metric | [APIMaster](https://openaitools.app/tool/apimaster) | [Kaopu API](https://openaitools.app/tool/kaopu-api) | | :--- | :--- | :--- | | Website URL | https://apimaster.ai | https://kaopuapi.ai | | Categories | AI API, AI Developer Tools, AI Website Builder, AI Chatbot | AI API, AI Developer Tools, Large Language Models (LLMs) | | Pricing Model | Paid | pay_as_you_go | | Monthly Visits | 210,182 | 0 | | MoM Growth Rate | +46.3% | 0% | | Primary Market | United States | Global | | Direct Visits | 65,736 | 0 | | Review Score | 4 | 2.2 | | Saved Count | 0 | 0 | | Supported Platforms | Website | Website | ## APIMaster APIMaster is an API routing marketplace for teams that want access to frontier models without paying frontier list prices. It aggregates verified provider channels for GPT, Claude, Gemini, DeepSeek, Qwen, Kling, Seedance and others behind one OpenAI-compatible endpoint, then routes each request to the lowest-cost verified channel available. You top up a single prepaid balance and burn it across every model in the catalogue. The core trust problem with cheap API resale is model substitution. APIMaster addresses it with an LLM fingerprint test applied to each provider before it is listed, so the model answering your request matches the one on the pricing page. The site also exposes uptime figures and per-million-token input and output rates for each route, which makes it possible to see that a cheaper channel is genuinely live rather than simply cheaper. Reliability is handled with automatic failover. If a channel degrades, traffic moves to the next verified provider without you rotating keys or redeploying. The catalogue covers LLM, image, video, audio and embedding endpoints, and because the interface is OpenAI-compatible, existing agent tooling and IDE integrations such as Cursor, Claude Code, LangChain and LiteLLM work with only a base URL and key swap. It is aimed at indie builders and product teams whose main cost driver is inference spend. **Pricing & Plans:** Pay-as-you-go against a prepaid balance. Rates are quoted per million input and output tokens and vary by model and routed provider, with discounts advertised at up to around 90% off official list pricing. Top-ups are made via USDT or Epay; no credit card is required to create a key. - **Broad model catalogue:** The catalogue spans over 90 models across LLMs, image, video, audio and embedding endpoints, individually priced per million tokens. - **Fingerprint-verified APIs:** Each listed provider passes an LLM fingerprint test intended to confirm you receive the exact model you paid for, with no silent substitution. - **Automatic failover routing:** If a routed channel goes down, requests are automatically routed to the next verified provider, so production calls keep running without manual key rotation. - **One OpenAI-compatible key:** Use one key and one prepaid balance across every model, with an OpenAI-compatible base URL for tools like Cursor, LangChain and LiteLLM. - **Cost and uptime transparency:** The site exposes per-provider uptime figures and input and output token rates so you can compare routes before committing traffic. **Strengths:** Large single-point catalogue of models behind one OpenAI-compatible key; Discounts advertised at up to 90% off official list pricing; Automatic failover removes single-upstream downtime as a failure mode; Per-provider uptime and token rates are published for comparison [Profile (Markdown)](https://openaitools.app/tool/apimaster.md) ## Kaopu API Kaopu API positions itself as "AI application infrastructure foundation" — a single gateway that sits between your application and the many large language models you want to use. Instead of wiring up a separate integration and billing account for every provider, you connect your API keys as channels, and Kaopu API exposes them through one standard, OpenAI-compatible protocol. The marketing highlights high-concurrency handling with automatic load balancing, so traffic can be spread across channels to keep services responsive. Beyond routing, the platform doubles as an administration dashboard. You can configure channels, set access permissions, and run multi-user management with flexible roles from one central panel — useful when several developers or teams share the same infrastructure and need their usage and access kept separate. Billing is pay-as-you-go, with real-time usage monitoring and transparent cost tracking so you can see exactly where tokens and budget are being consumed. Kaopu API is built on the open-source New API project, which means the gateway is self-hostable and extensible. Setup follows three straightforward steps: configure your keys and channels, connect through the compatible OpenAI, Claude, or Gemini routes, then monitor usage, costs, and performance with real-time analytics. Because it is a gateway rather than a model provider, its practical value comes from the upstream services you choose to connect. **Pricing & Plans:** Pay-as-you-go model with real-time usage monitoring and transparent token-based billing inside the dashboard; since it is self-hostable, total cost also depends on the upstream providers you connect. Public per-token rates are not published on the site. - **Single unified API endpoint:** Route requests to many upstream AI models through one standard, OpenAI-compatible API protocol, so your code stays the same as providers change. - **Automatic load balancing:** High-concurrency handling with automatic load balancing spreads traffic across your configured channels to keep responses reliable. - **Transparent token billing:** Pay-as-you-go accounting with real-time usage monitoring and clear per-key, per-model spending so you always know where budget goes. - **Multi-user admin dashboard:** Add API keys, set up channels, and assign access permissions for multiple users from one central admin panel. - **Open-source and extensible:** One-click configuration that adapts to the New API multi-protocol setup, plus a community-driven, self-hosted, extensible codebase. **Strengths:** One OpenAI-compatible endpoint for many models reduces integration work; Automatic load balancing helps keep high-concurrency workloads responsive; Transparent pay-as-you-go billing with real-time usage and cost tracking; Multi-user management with flexible permissions suits teams sharing infrastructure **Limitations:** Requires technical setup and self-hosting knowledge to deploy your own gateway; Pricing details are not published openly on the public site, so you must sign up or contact the team for costs; Its value depends on the upstream providers you connect; it does not supply models itself; Advanced multi-user and permission configuration may feel complex for solo developers [Profile (Markdown)](https://openaitools.app/tool/kaopu-api.md) ## Frequently Asked Questions ### How do APIMaster and Kaopu API compare in monthly traffic? APIMaster has 210,182 monthly visits, while Kaopu API has 0. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? APIMaster has a month-over-month growth rate of +46.3%; Kaopu API has 0%. ### How does pricing compare? APIMaster: Paid. Pay-as-you-go against a prepaid balance. Rates are quoted per million input and output tokens and vary by model and routed provider, with discounts advertised at up to around 90% off official list pricing. Top-ups are made via USDT or Epay; no credit card is required to create a key. Kaopu API: pay_as_you_go. Pay-as-you-go model with real-time usage monitoring and transparent token-based billing inside the dashboard; since it is self-hostable, total cost also depends on the upstream providers you connect. Public per-token rates are not published on the site. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [OpenAI Platform](https://openaitools.app/tool/openai) | 234,678,639 | -9.6% | Paid | Official frontier models with maximum reliability, but lacks third-party model aggregation and cost-saving routing. | [.md](https://openaitools.app/tool/openai.md) | | 2 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Direct native access to Google's Gemini models with generous free tiers, but limited to Google's ecosystem. | [.md](https://openaitools.app/tool/google-ai-studio.md) | | 3 | [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | -6.2% | Paid | One API key for hundreds of AI models from every major provider | [.md](https://openaitools.app/tool/openrouter-ai.md) | | 4 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control | [.md](https://openaitools.app/tool/orcarouter.md) | | 5 | [Atlas Cloud](https://openaitools.app/tool/atlas-cloud) | 777,031 | -16.4% | Paid | Unified AI inference platform supporting multiple modalities, but less specialized purely for LLM routing. | [.md](https://openaitools.app/tool/atlas-cloud.md) | | 6 | [CometAPI](https://openaitools.app/tool/cometapi) | 602,966 | +49.7% | Pay-as-you-go (credits) | One OpenAI-compatible API key for 500+ AI models | [.md](https://openaitools.app/tool/cometapi.md) | | 7 | [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | +7.9% | Freemium, Contact for Pricing | One open-source AI gateway for 100+ LLM providers | [.md](https://openaitools.app/tool/litellm.md) | | 8 | [ZenMux](https://openaitools.app/tool/zenmux) | 444,394 | +16.7% | Freemium, Paid | Unified LLM gateway with chat UI and automatic failover, but smaller user community than established alternatives. | [.md](https://openaitools.app/tool/zenmux.md) | | 9 | [SiliconFlow](https://openaitools.app/tool/siliconflow) | 276,303 | -10.5% | Pay-as-you-go | High-performance cloud inference hosting open-weight models, but narrower commercial model variety than general gateways. | [.md](https://openaitools.app/tool/siliconflow.md) | | 10 | [OfoxAI](https://openaitools.app/tool/ofoxai) | 239,718 | +12.7% | — | One API key, 100+ LLMs, official pricing with no platform markup | [.md](https://openaitools.app/tool/ofoxai.md) | --- Source: https://openaitools.app/compare/apimaster-vs-kaopu-api More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)