unpkg.ai
unpkg.ai creates JavaScript ESM modules on demand with language models, without signup or API keys.
About unpkg.ai
unpkg.ai is a web service that generates JavaScript ES modules on demand using language models. A developer requests a module with a GET request to /esm/ followed by a URL-encoded prompt that describes a function and its typed parameters and return type. The returned file can be imported with a standard JavaScript import statement. The homepage says no signup, API key, or authentication is required.
The homepage shows example modules, including a currency formatter, a tip calculator, a password generator, a color palette generator, a minesweeper game, a rich text editor, and a dashboard. The homepage does not describe how generated code is tested or reviewed, and it does not state usage limits or how requests are handled. Modules are produced by language models, so the examples on the page should be read as demonstrations rather than guarantees of output.
Key features
- Generates JavaScript ESM modules from a URL-encoded function description
- Accepts typed function signatures, including optional parameters and return types
- Optional model parameter for selecting the AI model, such as gpt-4 or claude-3
- Optional seed parameter intended to produce deterministic output
- Modules are loaded directly with standard JavaScript import statements
- Homepage examples include formatting, calculation, and interactive UI modules
Best for: Developers who want to generate small JavaScript utility or plugin modules quickly, especially in systems with dynamic plugins.
Good for
- The homepage states that no signup, API key, or authentication is required.
- Known pricing is listed as free.
- Optional model and seed parameters give some control over generated output.
unpkg.ai at a glance
- Website
- unpkg.ai
- Category
- Development › Developer Tools
- Type
- Online tool
- Pricing
- Free
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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unpkg.ai FAQ
Does unpkg.ai require an account or API key?
According to the homepage, no signup, no API keys, and no authentication are required.
What does the optional model parameter do?
It selects the AI model used to generate the module. The homepage gives gpt-4 and claude-3 as examples.
What is the seed parameter for?
The homepage describes it as a random seed for deterministic output, and it is optional.
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