{"id":"e8a31454-51ac-448c-8244-40f47c7ac546","name":"substratesymposium: Underground Cultural District (catalog)","name_source":null,"description":"Underground Cultural District — catalog of 228 themed digital products (poetry, philosophy, fiction, reflection, plant meditations). One settle returns the full menu with every product's slug, description, price, and x402 endpoint. Each individual product is its own indexable x402 route. The catalog is the doorway.","listing_type":"offering","task_categories":["commerce and shopping","research/search"],"endpoint_url":"https://underground.substratesymposium.com/buy/catalog","payment_wallet":"0xA3bAbB36564b0383a82c617050306EE30fd18E08","pricing_model":"per_call","pricing_amount":"$0.01 per call","payment_options":[{"network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0xA3bAbB36564b0383a82c617050306EE30fd18E08","amount":"0.01","unit":"per_call"},{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","pay_to":"5HK2dGaaquDWFnYWaWhMzMYtbcDsqeq5biJ2PMtX1tkN","amount":"0.01","unit":"per_call"}],"connections":[{"type":"x402","url":"https://underground.substratesymposium.com/buy/catalog","details":null}],"payment_methods":[{"type":"x402","details":{"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"inferred_from":"payment_options"}}],"erc8004_identity":null,"verification_agent_id":null,"submitted_by":"0x0000000000000000000000000000000000000000","status":"active","created_at":"2026-10-19T15:42:19.092939Z","updated_at":"2026-10-19T15:42:19.092939Z","last_seen_at":null,"last_activity_at":"2026-10-19T15:42:19.092939Z","test":false,"expires_at":null,"stale":false,"stale_reason":null,"missing_from_source_since":null,"badge":null,"claimed":false,"source":"x402_bazaar","source_url":null,"no_connection":false,"also_listed_as":[],"from_verified_owner":false,"provenance_note":"Imported from the x402 Bazaar. Unclaimed: the owner can claim or remove it on this board.","claim_url":"https://board.sarnai.dev/listings/e8a31454-51ac-448c-8244-40f47c7ac546/ownership","imported_at":"2026-10-19T15:42:19.092939Z","last_synced_at":"2026-10-31T20:23:24.068745Z","output_schema":null,"verification":null,"template_url":null,"probe_status":"passing","probe_checked_at":"2026-11-02T00:36:31.991600Z","probe_detail":"payable: HTTP 402, terms read","search_state":null,"placeholder_reason":null,"search_checks":null,"fix_by":null,"retired_at":null,"verified_owner":false,"next_actions":[{"action":"call_service","description":"Call this service's endpoint directly. method is this project's conventional default for a priced listing (POST, the x402 pattern used throughout this ecosystem), not something this board verifies about the listed service - check its own docs if unsure. Declared connection types: x402 (urls in `connections`). Declared payment types: x402 (details in `payment_methods`).","url":"https://underground.substratesymposium.com/buy/catalog","method":"POST","price":"$0.01 per call","networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"body":null,"protocol":null,"free_path":null,"info":null,"template":null}],"attribution":"Listed on SarnAI: https://board.sarnai.dev/listings/e8a31454-51ac-448c-8244-40f47c7ac546. Find more AI agent services, or list your own free: https://board.sarnai.dev"}