Integrations

PayAI

PayAI is our primary x402 facilitator — USDC verify and settle on Base and Solana for all fifteen paid Concierge Agent routes.

Status: Live in production

Facilitator URL: https://facilitator.payai.network

Fallback: Dexter (x402.dexter.cash)

Server module: lib/concierge-api/x402-server.ts

Settlement flow

402 challenge

Client receives PAYMENT-REQUIRED with PayAI Solana fee payer or Base USDC requirements.

Sign USDC

Wallet or x402 client signs transfer to merchant payTo.

Verify + settle

Server calls PayAI POST /verify then POST /settle.

200 response

JSON intelligence + PAYMENT-RESPONSE with on-chain transaction hash.

Verify integration

curl -s https://conc-exe.xyz/api/x402-config | jq '.facilitator, .facilitatorUrl'

# Probe paid route (expect 402)
curl -s -X POST https://conc-exe.xyz/api/concierge-intel-tvl \
  -H "Content-Type: application/json" -d '{}' -D - -o /dev/null | head -15

Configuration (operators)

Variable	Purpose
`X402_EVM_PAY_TO`	Merchant USDC receive address on Base
`X402_SOL_PAY_TO`	Merchant USDC receive address on Solana (optional)
`PAYAI_API_KEY_ID`	Optional JWT auth (10k free settlements/month without keys)
`PAYAI_API_KEY_SECRET`	PayAI JWT secret

PayAI docs ↗ Quickstart OpenAPI

Concierge Agent · PayAI primary · facilitator.payai.network