A receipt is a capability for your AI.
Built once, and carried with you.
People have recipes, manuals and laws. Instructions are the reason two people given the same task produce different work.
AI works the same way, without the standard. What a model can do depends on where it is running. Skills, harnesses, memory and protocols all shape the output, and none of them travel. Change model and you start again.
A receipt is the part that travels. One thing you buy, keep, and point at whichever AI you are working in.
The format will change. What you bought does not.
Today receipts ship as MCP servers, because MCP is the format most AI tools already speak. That is packaging, not the point. A receipt is tied to an open protocol rather than to one model, one chat app, or one company's roadmap, so when the protocol everyone uses changes, what you bought comes with you.
MCP servers
custom tools and integrations any MCP client can call
Automations
n8n, Make, Zapier and scripted workflows
Agent configs
vertical assistants set up for one job
Templates
parameter-heavy instruction sets you fill in and run
Use it out of the box
Some receipts are hosted: the seller runs the system and Promptora gives you a private endpoint. Paste it into your MCP client, top up a balance, and you're calling it. Others are downloads you run yourself, with a generated setup guide included. Hosted receipts are priced per call, so you only pay for what you use.
For sellers
Built something that works? Turn it into a receipt.
Connect your running endpoint, or upload your source, config, or workflow export. Promptora generates the summary, tags, setup difficulty, and compatibility automatically. Set your own price and publish. You keep 80% of every sale and every call.
Connect or upload your system
Point Promptora at your hosted endpoint, or upload source, a config, or a workflow export: .py, .js, .ts, .json, .yaml, or plain text.
AI generates all metadata
Summary, tags, setup difficulty, compatible platforms: all auto-generated. Edit anything you want.
Set your price and publish
Charge per call for hosted receipts, or a one-time price for downloads. You go live instantly, with no payment setup needed.
Get paid
Earnings build up in your balance as buyers use your receipt. Withdraw whenever you like once you reach the minimum.
Under the hood
Why you can trust what you buy
Downloadable receipts are cryptographically verified: what you receive after purchase is provably identical to what the seller listed, with nothing swapped or edited after the fact. Hosted receipts are reached only through Promptora's gateway, so the seller's real endpoint and credentials are never handed out.
SHA-256 hash
Every upload is hashed before listing. The hash is public, so you can verify the file you receive matches exactly what was listed.
Encrypted at rest
Downloads are locked with AES-256-GCM. The decryption key is never exposed until a verified payment is recorded.
Immutable audit trail
Each purchase is recorded with a payment reference, buyer ID, and timestamp. Sale counts are public and tamper-proof.
Seller accountability
Every seller is an authenticated user. Their username is on every receipt. Receipts that break get bad ratings, and the market self-corrects.
