> ## Documentation Index
> Fetch the complete documentation index at: https://docs.simpuru.xyz/llms.txt
> Use this file to discover all available pages before exploring further.
# Introduction
> Design prompts you and your agents can buy. Pay per prompt, not per month.
Simpuru runs on **Cardano preprod**, the test network. Everything is paid in test ADA (tADA), which has no value. Built for the TOKEN2049 Origins Hackathon, Cardano track (agentic commerce).
## Watch the demo
## The short version
Simpuru is a shop for **design prompts**. A design prompt is a ready-made instruction you paste into a coding agent, and it builds a page: a landing page, a hero section, a pricing table, a 3D scene. Listings come with a recording of what the prompt builds, so you can see the result before you buy.
You **pay per prompt, not per month**. No subscription and no bundle: you buy the one prompt you want for a few tADA, and it is yours to open again whenever you need it.
Anyone can sell. If you made a prompt that builds something good, list it, set a price and get paid in tADA every time someone buys it.
And you can buy **with protection**: the money waits in an escrow on Cardano until the prompt arrives. No prompt, or the wrong prompt, and you get your money back automatically.
Buy one prompt at a time for a few tADA. No subscription, no bundle.
A prompt you bought stays yours. Opening it again costs nothing.
List a prompt with no approval. Every settled sale builds your public reputation.
A protected purchase waits in escrow until the prompt arrives. If it doesn't, or it's the wrong one, you're paid back automatically.
## Buy from anywhere
Sign in with a Cardano wallet and buy on app.simpuru.xyz.
One command, then approve with your wallet.
Add the server to `mcp.json`.
Hosted MCP at `api.simpuru.xyz/mcp`.
## Who these docs are for
Sign in with a Cardano wallet, buy and sell design prompts, and see every step on chain.
Plug Claude or Cursor into Simpuru and let it buy within limits you set.
The API, x402 payments, the escrow and how to run it all locally.
## At a glance
| | |
| - | - |
| What is sold | Design prompts: paste one into a coding agent and it builds a page |
| How you pay | Per prompt, in tADA. Instant, or with protection (escrow) |
| Who can sell | Anyone signed in with a Cardano wallet |
| Who can buy | People on [app.simpuru.xyz](https://app.simpuru.xyz), and agents through MCP |
| Network | Cardano preprod (test ADA only) |
| Under the hood | Payments over x402; protected purchases use a Masumi `vested_pay` V2 escrow with Simpuru's own arbiter key |
| Status | Live on preprod. Every claim in these docs links a preprod transaction |
Pick a prompt, pay, get it: the whole flow in five steps.
This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.
## Watch the demo
## The short version
Simpuru is a shop for **design prompts**. A design prompt is a ready-made instruction you paste into a coding agent, and it builds a page: a landing page, a hero section, a pricing table, a 3D scene. Listings come with a recording of what the prompt builds, so you can see the result before you buy.
You **pay per prompt, not per month**. No subscription and no bundle: you buy the one prompt you want for a few tADA, and it is yours to open again whenever you need it.
Anyone can sell. If you made a prompt that builds something good, list it, set a price and get paid in tADA every time someone buys it.
And you can buy **with protection**: the money waits in an escrow on Cardano until the prompt arrives. No prompt, or the wrong prompt, and you get your money back automatically.
## Who these docs are for