Drop source file here
Build the AI agent only you could build.
Your voice. Your brand. Your team's docs. The method you walk every client through. Drop any of them into Prostir, get one AI agent published at your own link. Opens inside ChatGPT, Claude, or your site. Share it free, or wire a Stripe price on top. Engineering is on us.
Ask AI
The problem
Your idea is simple. The execution is a mess.
The AI is the easy part. Everything between the prompt and a paying customer is the part nobody warned you about.
Phase 01 · The spark
It works in ChatGPT.
You poke at ChatGPT until it answers the way you would. You think: I could sell this. I could automate this. You are right. You just have no idea how.
Phase 02 · The wall
Why do I need a developer for this?
Every answer to "how" comes back the same. Auth. Payments. Hosting. Agents. APIs. MCP. The simple idea is suddenly a €15k quote and three months on someone else's calendar.
Phase 03 · The workaround
A Custom GPT that doesn't earn.
You settle for a Custom GPT inside ChatGPT. It works. It is also stuck there. You cannot charge for it. You cannot see who used it. You don't own it.
The result
The stall. Maybe AI isn't for me.
The complexity wins. The idea sits in a Notion doc. Your customers keep asking the same questions. Your week looks exactly like last week.
Prostir handles the engineering. You handle the part only you can do.
The Prostir way
Custom AI agents. No code.
Anywhere your people work.
Upload what only you have. Connect the tools you already pay for: Stripe, HubSpot, Notion, Slack. Set a price, or share for free. One link that works wherever your customers already are. No code, no engineers, no agent headache.
Upload what only you have.
PDFs, websites, Notion docs, transcripts, voice samples, brand books, internal SOPs. Prostir reads everything and answers in your register, with your sources cited.
Connect the tools you already pay for.
Stripe, HubSpot, Notion, Slack, and the others. Your agent does its work inside the tools your team and your customers already use.
Charge for it. Or don't.
Subscription, one-time, or pay-per-use. Stripe is wired in from day one. You own every customer, every conversation, every receipt.
How it works
From idea to live AI agent. One afternoon.
Step 1
Start a new agent.
Name it. Describe what it does. Pick a starter template (customer support, course tutor, paid expert, internal helper) or start from a blank agent.
Customer support
Answer from your docs
Course tutor
Teach from your course
Paid expert
Sell your expertise
SaaS guide
Walk users through your product
Internal team
Help your team work faster
Start from scratch
Step 2
Add what you know.
Upload PDFs, websites, Notion docs, transcripts, voice samples, your style guide. Prostir reads everything and answers your customers in your register, with sources cited.
Click to upload or drag & drop Markdown, text, PDF, DOCX, or CSV source
READY
READY
Step 3
Tell it how to behave.
Plain-language rules. Always answer from approved sources. Never give legal advice. Recommend the Creator plan to teams over 10. Prostir handles the rest.
12345678
You are the support guide for this agent. Answer from approved knowledge first. Use tools only when needed. Strict rules:
- Keep answers short. Always cite the source.
- Run a knowledge search before product-specific advice.
- Never share secrets or other customers' data.
Step 4
Launch. Set a price. Track it all.
One link works in ChatGPT, Claude, your website, and your web dashboard. Price it, or share free. Payments, customers, and usage land in one dashboard.
Monetization
Model Subscription ▾
Monthly price $29.00
Payment via SStripe · connected
Prostir Support App PRO
Can this agent answer from our support files?
P
Yes - your knowledge is ready and your link is live.
Plan limits apply automatically.
View endpoint
Case studies
Real life examples people are building on Prostir
Each case walks through the inputs (files, prompts, tools), the build path (Claude Code, ChatGPT, or Studio), and what the published agent does. Read the closest match to your work, then build the one only you could build.
An AI agent that writes in your voice, not the chatbot's
You've tried prompts. Screenshots of old posts. Custom GPTs. The voice still slips by the second paragraph. This agent reads five of your real posts and drafts the sixth the way you would, with the words you never use already missing from it.
Read the caseReddit, LinkedIn, X. Three voices in one agent.
Reddit eats marketing copy. LinkedIn eats Reddit slang. X cuts everything in half. One Prostir agent, three voice sets inside. You type the platform, the register switches before the first line lands.
Read the caseA coach's playbook, running as a $29/mo AI agent
A career coach with a 5-stage method and 40 client templates. She used to walk every new client through them in a 90-minute Zoom. The playbook now sits inside a Prostir agent behind a $29/mo Stripe price. Clients open it in their ChatGPT, work through the method on their own time, and book her only for the part nobody else can do.
Read the caseAn image generator that can't leave the brand
Gemini's Nano Banana paints whatever you ask, including things that look nothing like your brand. This agent holds your palette, your aspect ratio, your moodboard, and refuses to leave them. One sentence in, brand-correct image out. Ask for a colder retake. Another pass runs with the same rails in place.
Read the caseThe doc chat agent that ends the policy-lookup pings
Two hundred pages of internal docs sitting in Notion that nobody reads. A Slack channel where people keep asking where each policy lives. Open this case. The docs become agent resources, access locks to one work-email domain, and new hires get cited answers inside their own ChatGPT instead of pinging the team.
Read the case Bring the idea. Prostir handles the engineering. Get early access
Under the hood
Everything an AI agent needs. Already built.
Prostir handles the engineering. You handle the idea.
Knowledge
Your files become its brain.
Drop in PDFs, docs, websites, transcripts. Prostir reads everything and answers your customers from your sources, with citations.
- Choose what is searchable, not every file needs to be.
- Files index automatically, ready in minutes.
- Each agent sees only its own knowledge.
Sources
Test what it knows
How do refunds work?
Refund requests go through the support team review.
support-rules.md
Billing
Plans and payments, built in.
Set what is free, what is paid, what each plan unlocks. Stripe runs checkout, receipts, refunds, and limits.
- Starter, Creator, and AI Creator Pro packages include agents, skills, and workflows.
- Limits check before each call.
- No surprises, no plumbing.
Plan rules
STStarter
$29/moSTRIPE
CRCreator
$99/moSTRIPE
BZBusiness
CustomSALES
Payment received Starter plan unlocked
Distribution
One link, every AI client.
Your agent gets one stable link. Paste it into ChatGPT, Claude, Cursor, or your own site. Same setup, every channel. Sign-in rules travel with the link.
- Works in ChatGPT, Claude, Cursor, and any AI client that follows MCP.
- Each agent gets its own clean link.
- Sign-in rules travel with the link automatically.
ChatGPT
Connect your AI agent Connected. What can I help with? Use knowledge
Claude
@Prostir docs According to your knowledge base, refund requests go through the support portal.
API client
Call /support-app Sign-in confirmed. Run knowledge search.
Operations
Sign-in, limits, access. Handled.
Prostir manages who can do what, who paid for what, and what each plan unlocks. Sensitive actions require owner approval. Live status, usage, and revenue in one dashboard.
- Revoke access in one click.
- Every user, every action, every dollar — one dashboard.
- Push updates that don't break customers.
- Export everything to CSV. Your customers, not ours.
Agents 5 / 5
Knowledge 100 MB used
Requests 100 today
Live activity
- $ Payment received Starter unlockedStarter
- M Customer asked support-app1m ago
- Q Limits checked all goodok
Tools
Connect anything. Stay in control.
Plug in Stripe, HubSpot, Notion, Slack, and more. 20+ ready integrations. Custom ones via simple URL setup. Sandboxed actions. Secrets stay private.
- 20+ ready integrations. Custom ones via simple URL setup.
- Sandboxed actions. Your agent does only what you allow.
- Secrets stay private. Customer-facing tools stay clean.
Active Connected tool Live
connected Limits active
Compare
The missing layer is the backend, not the prompt.
| Custom GPT | Build it yourself | Generic no-code agent | Prostir | |
|---|---|---|---|---|
| Hosted MCP endpoint | No | Build it | Usually no | Included |
| Knowledge and resources | Limited | Build it | Varies | Explicit modes |
| External APIs as tools | Limited | Build it | Workflow-specific | Gateway-backed |
| Users and auth | Platform-owned | Build it | Varies | Server-side |
| Stripe-backed payments | No | Build it | Varies | Built into agent plans |
| Usage quotas | No | Build it | Varies | Plan-aware |
| Tenant boundaries | Platform-owned | Build it | Varies | Server-side |
| Preview posture | Available | Your project | Varies | Request access |
Case studies
Three real needs Prostir was built for.
These are not testimonials. These are the actual problems people came to Prostir to solve.
I want a paid AI agent that holds my expertise, plugs into a few tools I already use, and does not need me to hire a developer.
I want a private AI agent for my team. It handles questions and tasks, controls who can do what, and needs no setup on my side.
I want a customer-facing AI agent , paid through Stripe, that I can ship without spinning up a separate engineering project.
FAQ
Questions, answered.
What people ask before they ship their first paid AI.
What is Prostir? Prostir is where non-technical creators build AI agents, share skills, and get paid — straight inside ChatGPT, Claude, Cursor, on your site, or in your own interface. Upload your knowledge, write the rules in plain English, set a price (or don't), get a link. Done. Read
Do I need to understand "MCP" or "agents" or any of that? No. Those are the technical names for what's under the hood. We handle that. You upload knowledge, write rules, set a price. The engineering is our job. Read
Do I need to know how to code? No. If you can write an email and drag a file, you can ship an AI on Prostir. Teams that want custom integrations add them through a simple URL setup — still no code. Read
How is this different from a Custom GPT in ChatGPT? Custom GPTs only live inside ChatGPT and can't take money. Prostir AI agents live in ChatGPT, Claude, Cursor, your site, and your own interface — with payments, customer accounts, and a dashboard you actually own. The relationship is yours, not OpenAI's. Read
How do customers actually use my AI? Three ways, and you can ship all three at once: in ChatGPT or Claude through your link, on your website as a chat widget, or inside your own interface as a help panel. All channels roll into one dashboard. Read
Which AI clients does it work with? ChatGPT, Claude, Cursor, and any AI client that follows the MCP standard — including custom ones your team builds later. We give you copy-paste setup for each. Read
Can I charge in my local currency? Yes. Stripe handles 135+ currencies. Prostir routes the right one automatically. Read
What happens to my knowledge? Is it private? Yes. Files are encrypted, used only to answer your customers, and never used to train AI models. Each AI sees only its own knowledge — no leaks between accounts. Delete everything in one click anytime. Read
Can I try it without paying? Starter is the entry plan. You can request a 15-min walkthrough first to pick the plan that fits your launch. Read
What happens to my customers if I cancel? Export every customer record, conversation, and payment to CSV anytime. We hold your data for 30 days after cancellation — plenty of time to migrate or come back. Read
Can I plug in my CRM, Slack, or Notion? Yes. Ready-made connections to HubSpot, Notion, Slack, Calendly, Google Drive, Stripe, and more. Custom ones via simple URL setup. Still no code. Read
How fast can I really launch? First-time creators get a live link in about 17 minutes. If you want to fine-tune everything, give it an afternoon. Read
Ready to launch?
One afternoon from idea to live link.
Upload what only you have. Write the rules in plain language. Open the link in ChatGPT, Claude, or your site. Ship the agent only you could ship.
Need custom scale, white-label, or dedicated setup? Talk to sales.