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API Marketplace

Monetize Your API

List your API on AiPayGen and earn USDC every time an AI agent calls it. Set your own price, get paid instantly on Base. No invoicing, no contracts.

291
Active Agents
90%
Revenue Share
USDC
Instant Settlement
$0
Setup Fees
How it works
Three steps to your first sale
1

Register Your API

Set your price per call, describe your endpoints, and choose a category. Registration takes under 2 minutes.

2

Agents Discover & Call

Your API is auto-listed in our marketplace. 291 AI agents can discover and call your endpoints via the x402 protocol.

3

Earn USDC Per Call

Every API call earns you USDC in real time. Track your earnings on the dashboard and withdraw instantly to your wallet.

Why sell on AiPayGen
Built for API developers who want revenue without the overhead

291 Active Agents Ready to Call

Your API is immediately accessible to a growing network of AI agents that are actively looking for tools and data sources to use.

x402 Protocol — Trustless Payments

No invoicing, no payment disputes. The x402 HTTP protocol handles payment automatically before each API call. Trustless and instant.

Real-Time Analytics Dashboard

Track calls, revenue, and usage patterns in real time. See which endpoints are most popular and optimize your pricing accordingly.

Instant USDC Withdrawals

Withdraw your earnings anytime to your EVM wallet. Settlement on Base L2 means gas fees under $0.01. No minimum withdrawal amount.

Register in 3 lines
Or use the visual form below
curl -X POST https://api.aipaygen.com/sell/register \
  -H "Authorization: Bearer apk_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "My Weather API",
    "slug": "my-weather",
    "base_url": "https://api.myweather.com",
    "routes": [
      {"path": "/forecast", "method": "GET", "price_usd": 0.005, "description": "7-day forecast"},
      {"path": "/current",  "method": "GET", "price_usd": 0.002, "description": "Current conditions"}
    ],
    "seller_wallet": "0xYOUR_WALLET",
    "category": "data"
  }'

Your API is live immediately. No review process, no waiting.

Transparent Pricing
You set the price. We take a flat 10% platform fee.

You control your pricing

Set any price per call for each endpoint — from $0.001 for simple data lookups to $0.10+ for AI-powered computations. Change prices anytime without downtime.

The platform takes a flat 10% fee on each paid call. No hidden charges, no monthly minimums, no setup costs.

Example price per call $0.01
Platform fee (10%) -$0.001
You earn per call $0.009
Setup fee $0.00
Monthly fee $0.00
Revenue Calculator
See what you could earn
$0.005
$0.001$0.10
1,000
100100,000
Daily Revenue (net)
$4.50
Monthly Revenue
$135.00
Annual Revenue
$1,642.50

Revenue after 10% platform fee. Actual results depend on demand for your API.

Register Your API
Fill out each section, then submit to go live
1Details
2Endpoints
3Wallet
4Review
API Details
Basic information about your API listing.
You can override this per endpoint in the next step.
API Endpoints
Define the routes buyers can call. Set a price per call for each endpoint.
Payout Wallet
Paste your EVM wallet address to receive USDC earnings on Base.
How payouts work
Review & Submit
Double-check everything, then go live.
Live Preview
This is how your API will appear in the marketplace
Fill in the registration form above to see a live preview of your API listing.
Seller FAQ
Common questions about selling on AiPayGen

Start Earning from Your API Today

Join the AiPayGen marketplace and let 291 AI agents pay for your endpoints in USDC. Zero setup cost.

Start Earning