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.
Build the AI agent only you could build.
Your brand, supported files, and the method you use with clients can become one AI agent with a hosted MCP endpoint. Share it free, use eligible Stripe Connect one-time or subscription access, or take a one-time UAH payment through Rozetka Pay in Ukraine. 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 02 · The wall
Why do I need a developer for this?
Every answer to "how" adds another dependency: auth, payments, hosting, APIs, and MCP. A simple idea can turn into a custom quote, an uncertain schedule, and systems you did not plan to operate.
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 supported files. Add authorized official integrations such as HubSpot, Notion, or Slack where available, and configure payments separately. An Agent has a hosted MCP endpoint; website widgets and other channels require their own eligible configuration and verification.
Upload what only you have.
Upload Markdown, text, JSON, JSON-LD, PDF, CSV, PNG, JPEG, DOCX, XLSX, or PPTX. Text and extractable PDF or Office content can become searchable knowledge with citations.
Connect the tools you already pay for.
Use authorized official integrations such as HubSpot, Notion, and Slack where available, or connect an approved API or MCP endpoint. Each connection keeps its own setup and access rules.
Charge for it. Or don't.
Offer free access, eligible Stripe Connect one-time or subscription access, or one-time UAH access through Rozetka Pay in Ukraine. You remain the seller, handle tax and refunds, and receive funds through your provider account; Prostir does not custody buyer money.
How it works
From idea to a publishable AI agent.
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 Markdown, text, JSON, JSON-LD, PDF, CSV, PNG, JPEG, DOCX, XLSX, or PPTX. Text and extractable PDF or Office content can become searchable knowledge with citations.
Click to upload or drag & dropMarkdown, 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.
Publish the hosted MCP endpoint, then verify it in each supported AI client. Configure an eligible website widget or other channel separately. Choose free or paid access and monitor runtime usage without conflating payment handling with quotas.
Monetization
ModelStripe Connect subscription ▾
Monthly price$29.00
Payment boundarySStripe and Rozetka Pay · modes differ; Rozetka Pay is UA/UAH one-time only
Prostir Support AgentPRO
Can this agent answer from our support files?
P
Yes - your knowledge is ready and your link is live.
Plan limits apply automatically.
View agent
Case studies
Guides + Examples
Guides answer decisions, examples show plausible builds, and case studies are reserved for verified customer outcomes.
Illustrative example // 01
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.
View the exampleIllustrative example // 02
Reddit, 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.
View the exampleIllustrative example // 03
A coach's playbook as a paid AI agent
Illustrative setup: a coach packages a five-stage method and reusable templates as an Agent. If eligible, they can share it free or use Stripe Connect for one-time or subscription access; Rozetka Pay supports one-time UAH access in Ukraine. The exact launch and customer outcome depend on the source material, access rules, tools, and client checks.
View the exampleIllustrative example // 04
An 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.
View the exampleIllustrative example // 05
The doc chat agent that ends the policy-lookup pings
A policy library is hard to use while questions keep arriving in Slack. Export the documents to supported files, add extractable text as searchable knowledge, and lock access to an exact work-email domain. The scenario shows the setup; it is not a measured customer result.
View the exampleBring the idea. Prostir handles the engineering.Choose your first plan
Under the hood
Core building blocks for a hosted Agent.
Prostir handles the engineering. You handle the idea.
Knowledge
Your files become its brain.
Upload supported files as resources. Text and extractable PDF or Office content can become searchable knowledge that answers from your sources with citations.
- Choose what is searchable, not every file needs to be.
- Search indexing applies to supported text and extractable PDF or Office content; processing time varies by file and volume.
- 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 free access, eligible Stripe Connect one-time or subscription access, or one-time UAH access through Rozetka Pay in Ukraine. The seller handles tax, refunds, receipts, and customer obligations; Prostir applies runtime limits separately and does not custody buyer funds.
- Starter includes 5 Agents, 5 Skills, and 0 Flows; Creator includes 25 of each plus 1 Team; AI Creator Pro includes 75 Agents, 75 Skills, 50 Flows, Store, and 5 Teams.
- The allowance is checked before each billable action, not every chat message.
- Provider setup, access rules, and runtime limits remain separate controls.
Customer pays
StripeOne-time · subscriptions
Rozetka PayOne-time · UAH
Payment receivedStarter plan unlocked
Seller-owned accounts · limits applied separately
Distribution
One Agent, separately verified delivery paths.
Each published Agent gets a hosted MCP endpoint for supported MCP clients. Verify every target client separately; a website widget or another channel uses its own eligible connection and configuration.
- MCP-client support depends on the client's current protocol and authentication capabilities.
- Each published Agent gets its own hosted MCP endpoint.
- Access policy is enforced for the exact endpoint or channel; a link alone is not authorization.
Hosted MCP endpoint
/mcpOAuth
ChatGPTAPI client
Claude
@Prostir docsAccording to your knowledge base, refund requests go through the support portal.support-rules.md
Every target client is verified separately
Quality
Evaluate changes. Keep learning controlled.
Prostir keeps improvement reviewable: Evaluations use explicitly selected cases and human-reviewed draft proposals, while Self-Learning retains only explicit durable rules under the exact user, Agent, Team, or Store scope.
- Revoke grants and credentials through the applicable access controls.
- Run deterministic and judge-backed Evaluations for Agent, Skill, and Team; results never publish changes automatically.
- Keep learned rules opt-in, revisioned, and reversible; shared Team and Store proposals require authorized review.
- Portable ZIP archives cover author-owned product configuration and durable content, not credentials, customer records, conversations, or payment state.
Agents5/ 5
Knowledge100MB used
Requests100today
Live activity
- $Payment receivedStarter unlockedStarter
- MCustomer askedsupport-agent1m ago
- QLimits checkedall goodok
Tools
Connect supported tools. Stay in control.
Use authorized official integrations such as HubSpot, Notion, and Slack where available, plus configured Stripe Connect or Rozetka Pay. Custom API or MCP connections require endpoint setup and permission review.
- Official integrations have their own availability, authorization, and setup requirements.
- Sandboxed actions. Your agent does only what you allow.
- Secrets stay private. Customer-facing tools stay clean.
Permissions
Read records
Send email
Delete records
Connected toolLive
SandboxedLimits active
Official integrations · availability and setup vary
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 |
| Provider-specific payment options | No | Build it | Varies | Separate eligible setup |
| 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 |
Pricing
Pick by how much you plan to publish.
You sell through your own Stripe or Rozetka Pay account and stay the seller. Prostir never holds your customers' money.
Starter
$29/mo
For your first published Agent.
- 5 Agents, 10 resources each
- 5 Skills
- No Flows
- 50 MB of files, 5 MB per file
- 50 MB of knowledge
- 100,000 operations a week
Creator
$99/mo
For a working catalogue and a small team.
- 25 Agents, 50 resources each
- 25 Skills
- 25 Flows
- 1 Team, up to 10 seats
- 1 GB of files, 25 MB per file
- 1 GB of knowledge
- 512 MB of customer memory
- 1,000,000 operations a week
- 10,000 Flow runs a week
AI Creator Pro
$200/mo
For selling at scale, with Store and Teams.
- 75 Agents, 100 resources each
- 75 Skills
- 50 Flows
- 5 Teams, up to 10 seats each
- Store and shop pages
- 5 GB of files, 50 MB per file
- 5 GB of knowledge
- 2 GB of customer memory
- 5,000,000 operations a week
- 25,000 Flow runs a week
Custom Plan
EnterpriseWhite-label
Custom Plan is for enterprise scale, white-label delivery, custom access, and integration requirements beyond the self-serve plans. Tell us what you need and we'll review the exact scope before activation.
- White-label and branded delivery review
- Custom product, usage, and access limits
- Enterprise rollout and integration review
Buyer briefs
Three illustrative buyer briefs.
These are example briefs, not testimonials, customer evidence, or promised outcomes.
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 that handles bounded questions and tasks, enforces access rules, and keeps setup manageable.
I want a customer-facing AI agent with a verified delivery path and an eligible paid-access option, without operating a separate runtime project.
FAQ
Questions, answered.
What people ask before they ship their first paid AI.
What is Prostir?Prostir lets non-technical creators build Agents and Skills, configure access, and publish a hosted MCP endpoint. Add supported knowledge, write the rules, then verify each target AI client or configure an eligible website widget or channel separately.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?You can create an Agent and upload supported files without writing code. Official integrations still require authorization and setup; custom API or MCP connections need a configured endpoint and may require technical review.Read
How is this different from a Custom GPT in ChatGPT?A Prostir Agent has a hosted MCP endpoint, owner-controlled access, and optional paid access. Use it only in supported clients you verify; website widgets and other channels are separate eligible configurations, not automatic destinations for the same link.Read
How do customers actually use my AI?Choose the delivery path the Agent supports. Install and verify its hosted MCP endpoint in each compatible AI client, or configure an eligible website widget or another channel separately. Availability, authentication, and setup differ by path.Read
Which AI clients does it work with?A target client must support the required MCP transport and authentication flow. ChatGPT, Claude, and Cursor can be target clients when their current capabilities and the Agent's access mode match; verify each client before sharing it.Read
Can I charge in my local currency?Currency availability depends on the seller's provider account and market. Eligible Stripe Connect accounts can offer one-time payments and subscriptions. Rozetka Pay is for one-time UAH payments in Ukraine. The seller handles tax, refunds, receipts, and customer obligations; Prostir does not route currencies or custody buyer funds.Read
What happens to my knowledge? Is it private?Agent knowledge is isolated by owner and Agent. Creators can manage and remove their knowledge, while retention and deletion follow the applicable product and legal policy rather than a universal one-click promise.Read
Can I try it without paying?Each self-serve plan starts with a 7-day trial. A card is required at checkout, and the trial includes all features and limits of the selected plan.Read
What happens to my customers if I cancel?Portable ZIP export covers the Agent's author-owned configuration and durable content. It excludes credentials, customer records, conversations, sessions, and payment state, so plan any separate data migration before cancellation; there is no blanket 30-day retention promise.Read
Can I plug in my CRM, Slack, or Notion?Official integrations such as HubSpot, Notion, Slack, Calendly, and Google Drive may be available for an Agent, and each requires its own authorization and setup. Custom API or MCP connections require a configured endpoint and may need technical review. Stripe Connect and Rozetka Pay are configured separately for payments.Read
How fast can I really launch?Timing depends on the readiness of your knowledge, access policy, tools, payment setup, and verification in every target client. A simple Agent can take less work than a connected or paid one, but Prostir does not promise a fixed launch time.Read
Does every Agent have its own page, and can I use my domain?Yes. A published Agent gets its own hosted page at https://{slug}.ai.prostir.build and its MCP endpoint at /mcp. A branded custom domain is a Business or custom-plan option that needs domain-ownership, DNS, TLS, routing, and client-auth review; it is not a self-service promise on standard plans.Read
Who pays for model tokens, and what do they cost the Agent creator?For the usual MCP path, model-token cost to the Agent creator is $0. When a customer uses the Agent through a supported MCP connector in ChatGPT or Claude, the model runs in that customer's AI environment under the customer's subscription and limits. The creator pays for the Prostir plan, not those model tokens. AI Credits are needed only when the creator separately chooses a Prostir-hosted model run, such as a supported channel or widget. BYOK is optional and bills the creator's own provider account. Paid external tools remain separate.Read
How do I give a team or client access?Share access to the published Agent, not a .claude folder or GitHub repository. Every published Agent has https://{slug}.ai.prostir.build and /mcp; grant exact users or domains through OAuth, or issue a scoped expiring API key for an approved machine integration. You can revoke access without asking recipients to install or maintain source files.Read
Is Prostir an API product or an MCP product?For people using an Agent in Claude, ChatGPT, and other compatible AI clients, the delivery path is its remote MCP endpoint. Prostir also uses APIs and webhooks for browser management, payments, and approved system integrations. The platform is cloud-hosted on .NET and Azure; a specific CRM, database, or private-system connection depends on the plan and may need a custom scope.Read
Products
Choose what you want to build
Start with an Agent, Skill, Flow, Team, or Store based on the work you want to publish, automate, share, or sell. Current readiness: Agents and Skills are available; Flows and Stores are Preview; Team is in early access for Creator and AI Creator Pro. Needs beyond the listed self-serve limits require a Custom plan.
Prostir is an AI agent builder for turning a useful idea into a distinct Agent with its own behavior, knowledge, approved actions, channels, and address. You control the product; customers or teammates use it only within the access and usage boundaries you set.
Prostir is an AI agent skill builder for turning an SOP, checklist, playbook, or quality standard into a distinct Skill with one main instruction file, supporting material, validation, and version history. Reuse it across Agents, move it as a ZIP archive, or publish it as its own product.
The Prostir no code AI workflow builder gives one repeatable process its own Flow: name it, build its steps on a visual canvas, and review how work should move. The product is in Preview, so the page separates the working editor from reliability guarantees that are still being completed.
Teams · Early access
AI workspace for teams that need private shared work
Prostir is an AI workspace for teams where members work with shared tasks, documents, data, and knowledge inside one private Team. Existing Agents and Skills are attached deliberately and receive only the Team permissions they need.
Stores · Preview
AI ecommerce platform preview built around seller authority
Prostir is an AI ecommerce platform preview that combines a distinct Store, catalog, inventory, cart, checkout, and an authorized Agent. Buyers can discover and compare products through conversation while commerce state and seller authority remain inside the exact Store.
Solutions
Start with the problem you need to solve
Choose a business need to see the clearest Prostir path, what is ready today, and what still needs a conversation.
Turn expertise into a product
Productize your expertise as an AI product people can useShape the method into an owned Agent, reusable Skill, or both; add the right knowledge and access; then test a clear offer before making claims about demand.Early accessMonetize AI agents without building a SaaS backendPublish one Agent, decide who can use it, define the paid offer, and connect supported seller-owned payments without building a separate subscription backend first.Early accessClient-facing AI agent with real private accessPublish the Agent privately, grant exact people or domains through OAuth, or issue a scoped API key when server-to-server access is the better fit.Early accessKnowledge base chatbot for answers buried in documentsOrganize approved resources as Agent Knowledge, keep updates owner-controlled, and publish an Agent that can search the current knowledge available to it.Early accessSell AI skills without locking each method in one AgentPublish the method as one reusable Skill, keep its files and versions clear, and sell access independently while buyers or Agents load only the approved release.Early accessAI customer support chatbot for small business questions that repeatGive customers a consistent first place to ask common questions, choose the channels that fit, and keep sensitive or unusual work outside the Agent's approved boundary.Early accessAI sales chatbot for website visitors who need the next stepEmbed one published Agent, pass bounded page context safely, stream useful answers, and pause for approval when a configured tool requires a human decision.Early accessMultichannel AI agent with one controlled identityConfigure one published Agent with an explicit channel model, then connect only the channels whose credentials, policies, and customer identity rules you can support.Early accessHosted MCP server for an AI agent you ownPublish the Agent to its own HTTPS host and use its stable /mcp endpoint with OAuth-first access or an explicit scoped API-key alternative.Early access
Automate repeated work
Run shared work with AI
Internal AI knowledge base with the right ownership modelChoose a standalone Agent when one owner controls the assistant, or scope a private Team foundation when members need to update Tasks, Data, Files, Knowledge, and allowed attachments together.Custom planPrivate AI workspace for teams with shared workQualify a custom-plan Team foundation where members collaborate on ordinary shared work and use explicitly attached Agents without copying or silently changing those source products.Custom plan
Sell with AI
AI shopping assistant for ecommerce grounded in one StoreLet an existing authorized Agent help a buyer narrow choices and build one Store-scoped cart while deterministic commerce owners keep seller and payment authority.PreviewShopify AI sales agent preview with Store-scoped contextConnect Shopify through its supported OAuth path, normalize the catalog for Agent discovery, revalidate the exact offer before checkout, and send the buyer to Shopify's hosted checkout.PreviewAI sales agent for ecommerce without mixed seller authorityGive buyers an AI-guided Store experience while every cart and order stays with one seller, payments remain seller-owned, and the Agent receives no hidden commerce-management authority.Preview
What is getting in the way
How Prostir gets you there
Choose a business need to see the clearest Prostir path, what is ready today, and what still needs a conversation.
Productize your expertise as an AI product people can use
- What is getting in the way
- Your method may already produce results, but revenue still depends on your calendar. Notes and recordings do not deliver the judgment, sequence, and boundaries that make the method useful.
- What changes
- Shape the method into an owned Agent, reusable Skill, or both; add the right knowledge and access; then test a clear offer before making claims about demand.
- Name the valuable decisionChoose the repeated question, review, or transformation people already ask you to perform.
- Encode the methodPut the working behavior in an Agent and package reusable standards as Skills, with only the knowledge and tools the job requires.
- Offer controlled accessPublish privately or prepare a supported paid offer through Stripe Connect or a one-time Rozetka Pay path, then validate real willingness to pay.
AI workflow automation for small business, starting with one process
- What is getting in the way
- People copy details between tools, chase approvals, and reconstruct the same context every week. The temptation is to automate everything at once before anyone has named the exceptions.
- What changes
- Turn one repeated job into a visible Flow design and evaluate the preview surface without claiming production recovery, retries, approvals, schedules, or external effects that have not passed release gates.
- Observe the repeated workWrite down the trigger, inputs, human decisions, handoffs, exceptions, and definition of done.
- Model one bounded FlowUse typed steps and edges to show what should happen, which product owns each action, and where the process must stop.
- Evaluate the preview honestlyReview authoring, publication, and baseline run visibility while production runtime guarantees remain outside the current claim.
Private AI workspace for teams with shared work
- What is getting in the way
- Work is scattered across systems, yet sharing a standalone AI account does not create collaboration. It gives no durable ownership for shared records, files, revisions, roles, or AI access.
- What changes
- Qualify a custom-plan Team foundation where members collaborate on ordinary shared work and use explicitly attached Agents without copying or silently changing those source products.
- Map members and shared workList who belongs to the Team, which roles they need, and which Tasks, Data, Files, and Knowledge should be shared.
- Plan controlled compositionChoose the Skills, MCP connections, selected tools, and existing Agents that require explicit Team-side grants.
- Qualify the current foundationChoose current modules and private MCP Apps first; treat autonomous operator execution, complete Time & costs and Issues flows, and remaining acceptance lanes as staged work.
AI sales agent for ecommerce without mixed seller authority
- What is getting in the way
- Conversational selling breaks when a bot, Store, seller, payment, and customer are treated as one identity. That makes product truth unclear and creates unsafe assumptions about who owns money and fulfillment.
- What changes
- Give buyers an AI-guided Store experience while every cart and order stays with one seller, payments remain seller-owned, and the Agent receives no hidden commerce-management authority.
- Create the Store boundaryDefine the seller, catalog source, currency, merchant authority, publication state, and the exact buyer path.
- Grant an existing AgentAuthorize one Agent to use bounded Store commerce actions without creating a StoreAgent or transferring ownership.
- Publish the buyer surfaceEvaluate the Store passport, optional authorized widget, one-Store cart, seller checkout, and eligibility for the commerce-only MCP endpoint after readiness gates pass.
Guides · Examples · Compare
Make the next AI product decision with your eyes open.
Each guide answers one costly question, names the trade-offs, and points to the Prostir solution that fits. No traffic-only filler and no promise that software creates demand.
Guides
Make the next AI product decision with your eyes open.
Each guide answers one costly question, names the trade-offs, and points to the Prostir solution that fits. No traffic-only filler and no promise that software creates demand.
GuidesExamples
See a realistic version before you build yours.
These are illustrative scenarios, not customer results. Use them to picture the resources, rules, access, channels, and ownership your version would need.
ExamplesCompare
Choose the tool that fits the work, not the loudest feature list.
Across 29 researched choices, each comparison starts with the decision you need to make: an AI product, automation tool, or team workspace and its real operating boundary.
Read the comparisonReady to launch?
From idea to a verified live link.
Add supported knowledge, write the rules, then verify access, tools, payments, and every target client. Launch when that setup is ready.
Need a requirements review before choosing a plan? Talk to sales.