{"error":"payment_required","message":"Pay with USDC on undefined to access this endpoint","accept":"x402","proxy":"https://open-data-proxy.thesoulnetwork.eu/sitemap.xml","extensions":{"bazaar":{"discoverable":true,"accepts":[{"scheme":"exact","price":"$0.01","resource":"https://open-data-proxy.thesoulnetwork.eu/sitemap.xml","description":"Data access via x402 payment gateway","mimeType":"application/json","outputSchema":{"example":{"ok":true,"source":"open-data-proxy"}}}]}}}