{"slug":"build-an-iso-8601-duration-183d83af","name":"Build an ISO 8601 duration","summary":"Assemble an ISO 8601 duration string from individual components (years, months, weeks, days, hours, minutes, seconds) and an optional sign. All components must be non-negative and at least one must be non-zero.","status":"live","indexable":true,"listed_since":"2026-10-25T17:53:05.385505Z","sources":[{"source":"x402_bazaar","external_id":"https://datetime.openverbs.com/v1/format","owner_address":"0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a","seen_at":"2026-10-27T07:28:21.665451Z","removed_at":null}],"endpoints":[{"url":"https://datetime.openverbs.com/v1/format","host":"datetime.openverbs.com","protocol":"x402","state":"live","last_probe_at":"2026-10-26T07:48:58.408619Z","last_ok_at":"2026-10-26T07:48:58.408619Z","tools_count":null,"tools_changed_at":null,"uptime_24h":null,"uptime_30d":1.0}],"also_listed_as":[{"slug":"datetime-openverbs-com-91bc1a99","name":"datetime.openverbs.com"}],"payment_options":[{"endpoint_url":"https://datetime.openverbs.com/v1/format","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"2000","pay_to":"0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a","observed_at":"2026-10-26T07:48:58.408619Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":6,"paid_calls_30d":27,"last_paid_at":"2026-10-26T00:15:30.227Z","reported_at":"2026-10-27T07:28:21.665451Z"},"assessment":{"method":"2026.10.2","checks":[{"id":"answers","state":"pass","reason":"Answered a check 22 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 1 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"6 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-10-27T06:00:57.697727Z"},"identity":{"endpoint_domains":["openverbs.com"],"proven_domains":[],"proven_wallets":[],"namesakes":[],"namesake_count":0,"identity_checks":[],"wallet_attestations":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}