# API2D vs APIMaster

API2D records 214 monthly visits with -91.3% month-over-month growth and Paid pricing. APIMaster records 210,182 monthly visits with +46.3% growth and Paid pricing.

| Metric | [API2D](https://openaitools.app/tool/api2d-com) | [APIMaster](https://openaitools.app/tool/apimaster) |
| :--- | :--- | :--- |
| Website URL | https://www.api2d.com | https://apimaster.ai |
| Categories | AI API, Large Language Models (LLMs), AI Developer Tools | AI API, AI Developer Tools, AI Website Builder, AI Chatbot |
| Pricing Model | Paid | Paid |
| Monthly Visits | 214 | 210,182 |
| MoM Growth Rate | -91.3% | +46.3% |
| Primary Market | Taiwan | United States |
| Direct Visits | 86 | 65,736 |
| Review Score | 3.8 | 4 |
| Saved Count | 4 | 0 |
| Supported Platforms | Website | Website |

## API2D

API2D is a payment-and-routing layer that sits in front of the world's major language and image models. Instead of managing billing with each provider separately, you register an API2D account, top it up, copy the issued key and paste it into any client that supports a custom API base URL. Because the interface mirrors OpenAI's own specification, most existing tools, SDKs and self-hosted chat UIs work without code changes.

The platform bills in points (P) rather than a fixed monthly subscription, so cost tracks actual token consumption. According to API2D's own documentation, overall pricing is kept at roughly 1.5x the underlying provider's official rate, with a minimum per-request charge and free cached responses. Streamed GPT-4 replies are billed differently because they hold a connection open, and media-heavy endpoints add a modest bandwidth fee.

Beyond pure relay, API2D layers on value that a raw endpoint does not offer: response caching, retrieval-augmented search, drawing tools and an agent/reseller program that lets larger accounts create and price their own sub-keys. It is aimed at Chinese-speaking developers and enthusiasts who want frictionless, domestically payable access to frontier models. For anyone evaluating it, remember that API2D is an independent third party and not affiliated with OpenAI, Anthropic or the other model vendors.

**Pricing & Plans:** Pay-as-you-go in points (P); overall cost roughly 1.5x official provider pricing, with free cache hits and a minimum per-call charge. Recharge via WeChat, Alipay, Chinese bank cards or Stripe. Points expire 180 days after your last top-up.

- **OpenAI-compatible endpoint:** One base URL and key work with virtually any app, SDK or self-hosted chat client that supports a custom API address.
- **Multi-provider model access:** Route requests to OpenAI models, Claude, Stability diffusion, Azure TTS and vector database services from a single account.
- **Points-based billing:** Consumption is metered in points with a published multiplier, so you pay for what you use rather than a flat subscription.
- **Free response caching:** Identical request bodies return cached answers for free for 24 hours, and a header can disable caching when freshness matters.
- **Reseller and grouping tools:** Larger accounts can batch-create keys, set default models and resell access through their own pricing pages.

**Strengths:** Works with the large ecosystem of OpenAI-compatible tools out of the box; Point-based billing means low commitment and granular cost control; Response caching can make repeated queries effectively free; Built-in enhancements (search, knowledge base, drawing) go beyond a plain relay

**Limitations:** Cost runs above direct provider pricing once the multiplier applies; Points expire 180 days after the last top-up, so balances need periodic renewal; No monthly plan — heavy users must estimate spend from token usage; Pricing calculation is complex because of minimum charges and bandwidth fees

[Profile (Markdown)](https://openaitools.app/tool/api2d-com.md)

## 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)

## Frequently Asked Questions

### How do API2D and APIMaster compare in monthly traffic?

API2D has 214 monthly visits, while APIMaster has 210,182. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

API2D has a month-over-month growth rate of -91.3%; APIMaster has +46.3%.

### How does pricing compare?

API2D: Paid. Pay-as-you-go in points (P); overall cost roughly 1.5x official provider pricing, with free cache hits and a minimum per-call charge. Recharge via WeChat, Alipay, Chinese bank cards or Stripe. Points expire 180 days after your last top-up. 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.

## 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 | Industry-standard multi-model API gateway with broader model support, but lacks APIMaster's specific regional billing discounts. | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 4 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | OpenAI-compatible gateway with advanced budget governance and routing, but fewer pre-integrated niche models. | [.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) | Offers a comparable large catalog of frontier models under one endpoint, but documentation and community support are more limited. | [.md](https://openaitools.app/tool/cometapi.md) |
| 7 | [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | +7.9% | Freemium, Contact for Pricing | Open-source proxy and SDK for unifying 100+ LLM APIs, but requires self-hosting rather than a managed marketplace. | [.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 | [EvoLink AI Model API](https://openaitools.app/tool/evolink-ai-model-api) | 312,573 | -27% | Free Trial, Paid, Contact for Pricing | One API for LLM, image, video, and audio models in production | [.md](https://openaitools.app/tool/evolink-ai-model-api.md) |
| 10 | [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) |

---
Source: https://openaitools.app/compare/api2d-com-vs-apimaster

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)