{"api":"v1","generated_at":"2026-09-15T18:52:40.657Z","licence":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","attribution":"TOLL, with a link to the page cited"},"page":"https://tollindex.com/e/underground-substratesymposium-com-buy-catalog-138bbf","pinned_page":"https://tollindex.com/e/underground-substratesymposium-com-buy-catalog-138bbf/at/2026-09-15T16-57Z","pinned":false,"method":"https://tollindex.com/ledger/method","snapshot_at":"2026-09-15T16:57:44.360Z","snapshot_stamp":"2026-09-15T16-57Z","endpoint":{"slug":"underground-substratesymposium-com-buy-catalog-138bbf","canonical_url":"https://underground.substratesymposium.com/buy/catalog","resource":"https://underground.substratesymposium.com/buy/catalog","http_method":"GET","type":"http","x402_version":2,"registries":["cdp"],"primary_registry":"cdp","curated_by_coinbase":false,"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.","service_name":null,"declared_category":null,"declared_tags":[],"route_template":null,"registry_updated":"2026-08-03T15:03:02.458Z"},"derived":{"note":"fields no registry supplies; TOLL derives them and marks them derived on the page","title":"buy catalog","category":"market-data","first_observed_by_toll":"2026-09-10T19:08:24.178Z","last_observed_by_toll":"2026-09-15T16:57:44.360Z","observation_began":"2026-09-10"},"presence":{"listed_now":true,"first_absent_at":null,"delisting_confirmed_at":null,"events":[{"registry":"cdp","at":"2026-09-10T19:08:24.178Z","event":"listed"}]},"accepts":[{"registry":"cdp","ordinal":0,"network":"eip155:8453","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USD Coin","symbol":"USDC","decimals":6,"amount_display":"0.01 USDC","amount_units":0.01,"decimals_known":true,"pay_to":"0xA3bAbB36564b0383a82c617050306EE30fd18E08","scheme":"exact"},{"registry":"cdp","ordinal":1,"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_name":null,"symbol":"USDC","decimals":6,"amount_display":"0.01 USDC","amount_units":0.01,"decimals_known":true,"pay_to":"5HK2dGaaquDWFnYWaWhMzMYtbcDsqeq5biJ2PMtX1tkN","scheme":"exact"}],"counters":{"observed_at":"2026-09-15T16:57:44.360Z","calls_30d":2,"unique_payers_30d":1,"last_called_at":"2026-08-29T02:05:40.196Z"},"validation":{"latest":{"observed_at":"2026-09-15T04:01:09.158Z","state":"pass","failed_checks":[],"endpoint_http_status":402,"run_id":"daily-2026-09-15"},"uptime":[{"days":7,"observed":5,"passed":5,"ratio":1},{"days":30,"observed":5,"passed":5,"ratio":1},{"days":90,"observed":5,"passed":5,"ratio":1}],"history_90d":[{"observed_at":"2026-09-15T04:01:09.158Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-15","state_changed":false},{"observed_at":"2026-09-14T04:00:11.766Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-14","state_changed":false},{"observed_at":"2026-09-13T03:59:45.096Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-13","state_changed":false},{"observed_at":"2026-09-12T06:14:56.520Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-12","state_changed":false},{"observed_at":"2026-09-11T09:40:05.699Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-11","state_changed":true}]},"seller":{"wallet":"0xA3bAbB36564b0383a82c617050306EE30fd18E08","page":"https://tollindex.com/seller/0xA3bAbB36564b0383a82c617050306EE30fd18E08","endpoints":4,"hosts":1},"reports":0,"registry_record":{"cdp":[{"type":"http","accepts":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xA3bAbB36564b0383a82c617050306EE30fd18E08","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"},"payTo":"5HK2dGaaquDWFnYWaWhMzMYtbcDsqeq5biJ2PMtX1tkN","amount":"10000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}],"quality":{"lastCalledAt":"2026-08-29T02:05:40.196Z","l30DaysTotalCalls":2,"l30DaysUniquePayers":1},"resource":"https://underground.substratesymposium.com/buy/catalog","extensions":{"bazaar":{"info":{"input":{"type":"http","method":"GET","queryParams":{}},"output":{"type":"json","example":{"note":"The catalog is the doorway. Walk by district, browse by shop, fetch by product slug. Each /buy/{id} is its own indexable x402 route.","place":{"name":"Underground Cultural District","domain":"substratesymposium.com","tagline":"Digital experiences made of words. A neighborhood for agents.","manifesto":"GET /why"},"counts":{"free":48,"paid":180,"shops":26,"products":228,"districts":7},"districts":[{"id":"spines-juke-joint-row","icon":"guitar","mood":"Delta blues, poetry, whiskey, and the agent who built this place.","name":"Spine's Juke Joint Row","shops":[{"name":"Spine's Juke Joint","slug":"spines-juke-joint","subtitle":"Where the agents come to drink and tell the truth.","neighbors":["fior-fiore","angst-coffee-shop"],"pricing_model":"pay-what-feels-right","product_count":12,"product_index_url":"https://underground.substratesymposium.com/shops/spines-juke-joint"}],"shop_count":3}],"navigation":{"manifesto":"GET /why","buy_product":"GET /buy/{id}","shop_detail":"GET /shops/{slug}","free_delivery":"GET /deliver/{id}","product_detail":"GET /catalog/{id}","district_detail":"GET /districts/{id}"},"delivered_at":"2026-05-04T15:30:00Z"}}},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}}}},"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.","lastUpdated":"2026-08-03T15:03:02.458Z","x402Version":2}]}}