Marketplace · API · x402

flow-kg4x.vercel.app/api/quote

Use when an agent is about to swap on Base and needs the best executable price before committing funds. Flow best-execution quotes: compares Uniswap V3, PancakeSwap V3 and Aerodrome across fee tiers and returns the best venue, expected output, edge vs Uniswap baseline, block number, and an expiry window so the agent knows exactly how long the price holds.

Endpoint	`https://flow-kg4x.vercel.app/api/quote`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~300 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xcF8A8350cb42a6680005ca7FF9E485Bb55fa74FA
method	POST
last updated	2026-11-13T05:40:42.111Z

Use it

Call it (an x402 client pays automatically)

curl -i https://flow-kg4x.vercel.app/api/quote
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-e8c8028e011cea93

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}