.prompt
The new programming language is written in words.
The prompt is the basic unit of human–AI interaction. .prompt gives that discipline its own address — for prompt libraries, engineering studios, AI products, and the marketplaces that trade them.
The opportunity
Every interaction with a large language model begins with a prompt — the place where human intent meets a model. In just three years an entire discipline has grown up around writing, versioning, testing, sharing, and selling prompts, and it has no purpose-built namespace to call home. Prompts live scattered across GitHub gists, Notion pages, screenshots on X, and a dozen half-built directories.
.prompt is that missing home: a categorical address for prompt libraries, prompt-engineering studios, AI products, and the marketplaces buying and selling them. A name like code.prompt or design.prompt tells a human and a machine exactly what lives there before the page even loads.
The market
Prompt engineering moved from novelty to profession in under two years. It is taught in courses, listed on job boards, and priced into consulting engagements. Around it sits a fast-growing tooling layer — prompt IDEs, evaluation frameworks, versioning systems, and marketplaces — all competing for a language that describes what they do.
Crucially, .prompt is the one string in this portfolio with a marketplace already attached. ai.Best runs a prompt-and-workflow marketplace inside its multi-model AI platform, so demand for a credible .prompt address is not hypothetical — it is operational the day the string launches.
The community
Prompt engineers are a native-online community that already shares a vocabulary. They swap techniques, publish collections, and build reputations around the quality of what they write. Give that community an address that matches its craft and the namespace becomes an identity, not just a URL — a way to say 'this is a serious prompt, from a serious author.'
Why the name carries value
A prompt without packaging is a file. A prompt published under yourname.prompt is a product. The word itself is unambiguous to buyers, to search, and to the AI agents that increasingly resolve names on a human's behalf — which is exactly the machine-readable clarity that compounds in an AI-mediated internet.
What it's for
- Prompt libraries and public collections
- Prompt-engineering studios and consultancies
- AI product landing pages and documentation
- Prompt marketplaces and storefronts
- Courses and certifications in prompt design
Why internet.Best
Most new top-level domains fail not because the word is wrong, but because nothing happens after registration. internet.Best owns every step that comes after the dot, so .prompt can do something the day it is registered:
- domains.Best — an ICANN-accredited registry operating .Best since 2018, with proven compliance, abuse handling, and hundreds of registrar relationships.
- web.Best — a video-first website builder that turns a fresh registration into a published, renewable site in minutes.
- ai.Best — a multi-model AI platform with a built-in marketplace, so the prompts, agents, and skills these strings address are already being run and traded before the string even launches.