PayAI PayAI Facilitator

Solana‑first, multi‑network facilitator.

Process x402 payments across Solana and EVM networks with one drop‑in endpoint. No API keys, no blockchain headaches—just plug and play.

Facilitator URL
Start in 2m Docs Live support
Network fees covered for buyers & merchants
No API keys required
Drop‑in setup
Point your merchant at the facilitator and you’re done.
  1. 1.Set FACILITATOR_URL= in your server.
  2. 2.Choose a network:
    solana, solana-devnet, base, base-sepolia,
    polygon, polygon-amoy, avalanche, avalanche-fuji,
    sei, sei-testnet, peaq, iotex, xlayer, xlayer-testnet,
    skale-base, skale-base-sepolia.
  3. 3.Ship. The facilitator verifies & settles payments on your behalf.
Solana Base Avalanche Polygon Sei IoTeX Peaq XLayer SKALE

Features

Multi‑network
Solana‑first, with EVM support (Base, Avalanche, Sei, IoTeX).
Point one endpoint at many chains. The facilitator abstracts network quirks so your server doesn’t have to.
Any token
ERC‑20 on EVM; SPL & Token‑2022 on Solana.
Use stablecoins or your own tokens. Configure per‑endpoint pricing in fiat or atomic units.
Gasless experience
No blockchain fees for buyers or merchants.
The facilitator covers network fees and handles verification/settlement so you can focus on your product.
1‑second start
No API keys. Just plug & play.
Start with a single env var and standard endpoints (/verify, /settle, /list).
Auto-Discovery
Automatically listed in the x402 Bazaar.
Your merchant will be auto-discovered through the x402 Bazaar. Opt-out possible. [More info]
Auto-Compliance
Built-in OFAC sanctions screening.
Automatically filters known bad actors (OFAC Sanctioned Entities) from using your merchant.

Merchants

Express Quickstart

Get started with Express.js in minutes.

Hono

Quickstart for building an x402-enabled server with Hono.

All Server Options

Explore all available server frameworks.

Clients

Axios Client

TypeScript client with Axios for HTTP requests.

Fetch Client

TypeScript client using native Fetch API.

All Client Options

Explore all available client frameworks.

Try it for free

Echo Merchant

Test the complete payment flow with our demo merchant.

Echo Merchant Docs

Learn how the demo merchant works under the hood.

Pricing

Get started
FREE
$0/month
  • Up to 1,000 settlements per month
  • No API key required
Default plan
Scale up
BEYOND FREE
$0.001/transaction
  • Unlimited settlements (credit-based)
  • 1 credit = 1 settled transaction
  • Credits never expire
Top up credits

Pricing examples

1 tx
$0.001
1,000 txs
$1
100,000 txs
$100
Documentation
Everything you need to integrate x402 with PayAI.
Facilitator Overview Quickstart Supported Networks Client Guide
Support
We’re here to help.
Join Discord