OnAPI vs ChatCraft
Compare OnAPI vs ChatCraft and see which AI Developer tool is better when we compare features, reviews, pricing, alternatives, upvotes, etc.
Which one is better? OnAPI or ChatCraft?
When we compare OnAPI with ChatCraft, which are both AI-powered developer tools, Neither tool takes the lead, as they both have the same upvote count. Be a part of the decision-making process. Your vote could determine the winner.
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OnAPI
What is OnAPI?
OnAPI is a unified API gateway that lets developers call GPT, Claude, Gemini, Sora, Veo, and Google's Nano Banana image model through a single key. Swap your SDK base URL to OnAPI's endpoint, plug in an OnAPI key, and keep the rest of your integration unchanged.
The gateway speaks OpenAI-compatible and Anthropic-compatible protocols, so chat completions, Anthropic messages, streaming, function calling, and long-context requests work without a rewrite. OnAPI says new upstream models typically appear within 24 hours of release.
Two routing channels share the same account. The economy channel bills at a 1:1 rate multiplier for everyday volume. The official channel routes through paid keys tied directly to provider accounts at a 1:7.5 multiplier when you need a straighter path to upstream APIs.
OnAPI is aimed at builders shipping AI products, especially where direct provider billing is inconvenient. Top-ups run through Alipay, WeChat, USDT, and USDC. Account balance does not expire, and the site states there is no minimum spend.
The service runs on the open-source New API project (based on One API), which handles model aggregation and cross-format conversion between provider APIs.
ChatCraft
What is ChatCraft?
ChatCraft is a browser-based developer chat client for talking through code with large language models. You paste an OpenAI or OpenRouter API key, pick a model, and iterate on prompts with GitHub-flavored Markdown, syntax highlighting, and per-message edit, retry, and delete controls.
General chat UIs optimize for prose. ChatCraft stores every conversation in local IndexedDB, gives each chat its own URL, and lets you retry any assistant reply with a different model mid-thread. That makes it practical to compare GPT-4 against cheaper models on the same coding question without starting over.
The project is open source on GitHub, runs entirely client-side with no server install, and supports Mermaid diagram rendering plus optional sign-in with GitHub or Google. You pay only what your chosen provider charges per token.
OnAPI Upvotes
ChatCraft Upvotes
OnAPI Top Features
One key reaches GPT, Claude, Gemini, Sora 2, Veo, and Nano Banana
OpenAI and Anthropic SDKs work after a base_url swap
Economy channel runs at a 1:1 multiplier, billed pay-as-you-go
Official channel uses direct provider keys at a 1:7.5 multiplier
Streaming, function calling, and long context stay intact
New upstream models added within 24 hours, per OnAPI
ChatCraft Top Features
Supports OpenAI and OpenRouter so you can switch models or vendors in one thread
Retries any assistant message with a different model without losing prior context
Stores chats locally in IndexedDB with optional GitHub or Google sign-in
Renders code blocks with syntax highlighting and converts prompts to Mermaid diagrams
Open-source MIT project linked directly from the ChatCraft sidebar
OnAPI Category
- Developer
ChatCraft Category
- Developer
OnAPI Pricing Type
- Paid
ChatCraft Pricing Type
- Free