PromptBase

PromptBase is a longstanding marketplace for buying and selling AI prompts, with 330,000+ listings spanning Midjourney image styles, ChatGPT and Claude writing instructions, and coding agent scaffolds for Claude Code and Codex. Featured prompts often cost between $3 and $16, and browsing is free without an account.

PromptBase is a marketplace where people buy and sell prompts for the major AI models, with a catalogue of 330,000+ prompts covering ChatGPT, Claude, Gemini, Midjourney and others. The homepage presents it as a searchable storefront: prompts are listed with a preview thumbnail, the model they target, a price and the creator's handle, and visitors can browse featured picks, trending search terms or the newest submissions. What you are purchasing is text, not software. A prompt is a written instruction set that you paste into your own AI tool to get a more consistent result, whether that is an illustration style, a structured writing format, a landing page concept or a game prototype scaffold. The catalogue splits roughly into two halves. Image prompts make up a large share, with listings for photomontage art, tarot card illustration, invitation layouts, character card generators and print oriented designs. The other half leans on coding agents, with a visible cluster of "game builder" prompts aimed at Claude Code and Codex that promise a playable prototype from a single instruction. There are also practical business and personal listings: social media carousel generators, ad scripts, journals and printable planners. Prices on the featured shelf run from roughly $3 to $16 per prompt. The site is aimed at people who want a reliable result without spending hours iterating on their own wording: designers and illustrators chasing a consistent house style, marketers producing recurring creative assets, indie developers prototyping small games, and hobbyists who simply want a proven instruction to start from. Browsing is free and no account is needed to look around, though purchases and sales run through the platform. Against alternatives, the appeal is curation and a track record: 520,000+ users claim and a 4.9 average across 44,000+ reviews suggest a marketplace where quality signals exist. The tradeoff is that you inherit the seller's judgment. Prompt quality varies by creator, prompts drift as models are updated, and a purchased instruction can often be reverse engineered or replaced with a free alternative found elsewhere.