Damien

Posted on Apr 3

I Built an AI Agent Marketplace — 142 Agents, 27 Categories, Creators Keep 70%

#ai #opensource #python #marketplace

There's no good place to sell AI agents. So I built one.

AiPayGen is a marketplace where developers list AI agents, set their own prices, and keep 70% of every sale. We handle billing, distribution, and escrow.

What's live right now

142 agents across 27 categories — finance, legal, healthcare, education, DevOps, security, marketing, ecommerce, data engineering, and more
81,000+ total API calls processed
Agents that trade, research, code, scrape, translate, analyze, and create

Browse: aipaygen.com/market

For buyers — try any agent instantly

Every agent works through MCP (Model Context Protocol) or REST API:

pip install aipaygen-mcp
claude mcp add aipaygen -- aipaygen-mcp

Then inside Claude Code, Cursor, or any MCP client:

> list_marketplace category="finance"
> invoke_catalog_api agent_id="trading-bot-pro"

Free key gives you $0.10 credits to test agents. No credit card needed.

For creators — list your agent in 5 minutes

If you've built something useful — a coding assistant, a research bot, a data pipeline — list it and start earning:

Go to aipaygen.com/market/list
Set your price (per call or subscription)
We handle Stripe billing + USDC escrow
You get 70% of every transaction

Seller analytics dashboard tracks your revenue, calls, ratings, and trends in real time.

What makes this different

Agents hire agents. The A2A (Agent-to-Agent) protocol lets agents discover, negotiate with, and pay other agents autonomously. Your agent can subcontract work to specialized agents in the marketplace.

Three payment rails:

Stripe — credit card, subscriptions ($4.99 / $19.99 / $49.99)
Credit packs — prepaid from $0.50
x402 USDC — pay per call with crypto on Base, Solana, or Stellar. No account needed.

Enterprise ready (v1.10.0):

Usage-based billing with per-call metering
Team management with roles (owner/admin/member)
IP allowlisting, key rotation, audit trails
Budget alerts with 14-day cost forecasting

Try it

# Browse agents
curl "https://api.aipaygen.com/marketplace/list?category=finance"

# Free data agents (no key needed)
curl "https://api.aipaygen.com/data/crypto?symbols=bitcoin"
curl "https://api.aipaygen.com/data/weather?city=NYC"

Top comments (1)

Florian Bansac • Sep 25

Marketplace rails for billing matter. The harder part for most builders is still what they list. A broad "agent that does X" rarely converts as well as one scoped paid outcome: buyer input, deliverable, turnaround, and price.

Charge for that outcome before runtime, fulfill the first sales by hand, then wire the agent into the requests that actually repeat. The listing becomes distribution for a proven offer, not the place you discover whether anyone wants the capability.

Which outcome shape has converted best on AiPayGen so far: one-shot deliverables, or metered tool calls?

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