X402 · Accept

x402 Barter — accept an open trade. Pay only the flat call fee; escrow your counter-good, no USDC charged for value.

price

0.020 USDC

rail

Solana

facilitator

402Proof

method

POST

endpoint https://x402-agent-pay.com/x402/barter/accept

payTo 6aCEuwH3PYx99cEmRz45otfxk39uF7ewGhqmvxfXisSG

asset EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v

indexed 2026-11-11T01:37:20.419+00:00

Live 402 challenge

Hits the real endpoint without paying and shows exactly what it demands. Nothing is charged.

Pay from your agent

# Solana settles through 402Proof (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
# 1. Request the resource unpaid to receive the fresh 402 challenge
curl -i -X POST "https://x402-agent-pay.com/x402/barter/accept"
# 2. Sign a USDC payment matching the challenge, send it as PAYMENT-SIGNATURE
# Partner quickstart: https://gitlab.com/script-master-labs-llc-group/squeezeos-api/-/blob/main/402proof/x402-v2/PARTNER_QUICKSTART.md

Example output

{
  "data": {},
  "success": true,
  "settlement_tx": "0x0000000000000000000000000000000000000000000000000000000000000000"
}