{"api":"v1","generated_at":"2026-09-15T20:04:54.511Z","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/waterpulse-theaslangroupllc-com-api-water-gauge-f37c3e","pinned_page":"https://tollindex.com/e/waterpulse-theaslangroupllc-com-api-water-gauge-f37c3e/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":"waterpulse-theaslangroupllc-com-api-water-gauge-f37c3e","canonical_url":"https://waterpulse.theaslangroupllc.com/api/water/gauge","resource":"https://waterpulse.theaslangroupllc.com/api/water/gauge","http_method":"GET","type":"http","x402_version":2,"registries":["cdp","binance"],"primary_registry":"cdp","curated_by_coinbase":false,"description":"Live USGS river-gauge tick, deterministic. Answers \"what is the flow at this gauge right now\", \"is this river high or low vs this week\". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.","service_name":"WaterPulse","declared_category":null,"declared_tags":["usgs","streamflow","river-gauge","discharge","gage-height"],"route_template":null,"registry_updated":"2026-09-14T19:47:26.335Z"},"derived":{"note":"fields no registry supplies; TOLL derives them and marks them derived on the page","title":"water gauge","category":"inference","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":"binance","at":"2026-09-10T19:08:24.178Z","event":"listed"},{"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":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":1,"network":"eip155:8453","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"GatewayWalletBatched","symbol":"USDC","decimals":6,"amount_display":"0.01 USDC","amount_units":0.01,"decimals_known":true,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":2,"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":"985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1","scheme":"exact"},{"registry":"cdp","ordinal":3,"network":"eip155:137","asset":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","asset_name":"USD Coin","symbol":"USDC","decimals":6,"amount_display":"0.01 USDC","amount_units":0.01,"decimals_known":true,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":4,"network":"eip155:42161","asset":"0xaf88d065e77c8cc2239327c5edb3a432268e5831","asset_name":"USD Coin","symbol":"USDC","decimals":6,"amount_display":"0.01 USDC","amount_units":0.01,"decimals_known":true,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":5,"network":"eip155:480","asset":"0x79a02482a880bce3f13e09da970dc34db4cd24d1","asset_name":"USDC","symbol":null,"decimals":null,"amount_display":"10000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":6,"network":"eip155:143","asset":"0x754704bc059f8c67012fed69bc8a327a5aafb603","asset_name":"USDC","symbol":null,"decimals":null,"amount_display":"10000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":7,"network":"eip155:196","asset":"0x779ded0c9e1022225f8e0630b35a9b54be713736","asset_name":"USD₮0","symbol":null,"decimals":null,"amount_display":"10000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":8,"network":"eip155:999","asset":"0xb88339cb7199b77e23db6e890353e22632ba630f","asset_name":"USDC","symbol":null,"decimals":null,"amount_display":"10000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"cdp","ordinal":9,"network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k","asset":"31566704","asset_name":null,"symbol":null,"decimals":null,"amount_display":"10000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I","scheme":"exact"},{"registry":"cdp","ordinal":10,"network":"xrpl:0","asset":"XRP","asset_name":null,"symbol":null,"decimals":null,"amount_display":"10000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32","scheme":"exact"},{"registry":"cdp","ordinal":11,"network":"xrpl:0","asset":"524C555344000000000000000000000000000000","asset_name":null,"symbol":null,"decimals":null,"amount_display":"amount not declared","amount_units":null,"decimals_known":false,"pay_to":"rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32","scheme":"exact"},{"registry":"cdp","ordinal":12,"network":"eip155:56","asset":"0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d","asset_name":"World Liberty Financial USD","symbol":null,"decimals":null,"amount_display":"10000000000000000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"exact"},{"registry":"binance","ordinal":0,"network":"eip155:56","asset":"0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d","asset_name":null,"symbol":null,"decimals":null,"amount_display":"10000000000000000 smallest units, decimals unknown","amount_units":null,"decimals_known":false,"pay_to":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"eip3009"}],"counters":{"observed_at":"2026-09-15T16:57:44.360Z","calls_30d":4,"unique_payers_30d":3,"last_called_at":"2026-09-14T19:47:26.114Z"},"validation":{"latest":{"observed_at":"2026-09-15T07:01:17.928Z","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":"2026-09-15T07:01:17.928Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-15","state_changed":false},{"observed_at":"2026-09-14T06:27:57.761Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-14","state_changed":false},{"observed_at":"2026-09-13T06:17:37.737Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-13","state_changed":false},{"observed_at":"2026-09-12T09:28:01.705Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-12","state_changed":false},{"observed_at":"2026-09-11T14:46:02.069Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-11","state_changed":true}]},"seller":{"wallet":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","page":"https://tollindex.com/seller/0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","endpoints":964,"hosts":78},"reports":0,"registry_record":{"cdp":[{"tags":["usgs","streamflow","river-gauge","discharge","gage-height"],"type":"http","accepts":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"GatewayWalletBatched","version":"1","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":604900},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"},"payTo":"985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1","amount":"10000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300},{"asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","extra":{"name":"USD Coin","version":"2"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:137","maxTimeoutSeconds":300},{"asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","extra":{"name":"USD Coin","version":"2"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:42161","maxTimeoutSeconds":300},{"asset":"0x79A02482A880bCe3F13E09da970dC34dB4cD24D1","extra":{"name":"USDC","version":"2"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:480","maxTimeoutSeconds":300},{"asset":"0x754704Bc059F8C67012fEd69BC8A327a5aafb603","extra":{"name":"USDC","version":"2"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:143","maxTimeoutSeconds":300},{"asset":"0x779ded0c9e1022225f8e0630b35a9b54be713736","extra":{"name":"USD₮0","version":"1"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:196","maxTimeoutSeconds":300},{"asset":"0xb88339CB7199b77E23DB6E890353E22632Ba630f","extra":{"name":"USDC","version":"2"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000","scheme":"exact","network":"eip155:999","maxTimeoutSeconds":300},{"asset":"31566704","extra":{"feePayer":"ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"},"payTo":"62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I","amount":"10000","scheme":"exact","network":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k","maxTimeoutSeconds":300},{"asset":"XRP","extra":{"invoiceId":"BE282C6E7D8F43DAACE92B58AB7DD1B5","sourceTag":804681468},"payTo":"rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32","amount":"10000","scheme":"exact","network":"xrpl:0","maxTimeoutSeconds":300},{"asset":"524C555344000000000000000000000000000000","extra":{"issuer":"rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De","invoiceId":"263D29EBDC3146FCA84AC74F3242A85A","sourceTag":804681468},"payTo":"rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32","amount":"0.01","scheme":"exact","network":"xrpl:0","maxTimeoutSeconds":300},{"asset":"0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d","extra":{"name":"World Liberty Financial USD","version":"1","signerAddress":"0x34F7a661160780Ce1346e6D7B96D2bE244590899","assetTransferMethod":"eip3009"},"payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","amount":"10000000000000000","scheme":"exact","network":"eip155:56","maxTimeoutSeconds":300}],"quality":{"lastCalledAt":"2026-09-14T19:47:26.114Z","l30DaysTotalCalls":4,"l30DaysUniquePayers":3},"resource":"https://waterpulse.theaslangroupllc.com/api/water/gauge","extensions":{"bazaar":{"info":{"input":{"type":"http","method":"GET","queryParams":{"site":"01646500"}},"output":{"type":"json","errors":{"400":{"example":{"error":"site parameter required"},"description":"Invalid or missing parameter(s) — required: site. Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."},"402":{"description":"Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."},"500":{"example":{"error":"upstream_failed"},"description":"Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."}},"example":{"site":{"code":"01646500","name":"POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA","latitude":38.9498,"longitude":-77.1276},"readings":[{"unit":"ft3/s","max7d":5210,"min7d":3890,"latestValue":4420,"parameterCd":"00060","variableName":"Streamflow, ft³/s"}],"deterministic":true}}},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["site"],"properties":{"site":{"type":"string","description":"USGS site number (8-15 digits)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"errors":{"type":"object","description":"Documented error responses, keyed by HTTP status code","additionalProperties":{"type":"object","required":["description"],"properties":{"example":{"type":"object"},"description":{"type":"string"}}}},"example":{"type":"object"}}}}}},"builder-code":{"info":{"a":"bc_gxy6qn5p"},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"a":{"type":"string","pattern":"^[a-z0-9_]{1,32}$","description":"App builder code"},"s":{"type":"array","items":{"type":"string","pattern":"^[a-z0-9_]{1,32}$"},"description":"Service builder codes"},"w":{"type":"string","pattern":"^[a-z0-9_]{1,32}$","description":"Wallet builder code"}},"additionalProperties":false}},"reconciliation":{"info":{"memo":"PulseNetwork WaterPulse /api/water/gauge: pay-per-call data API, 1 request, USD 0.01. Seller: The Aslan Group LLC.","seller":{"brand":"PulseNetwork","catalog":"https://pulse.theaslangroupllc.com","legal_name":"The Aslan Group LLC"},"receipt":{"format":"ISO 20022 camt.054-style XML+JSON, Ed25519-signed, deterministic","obtain":"GET https://onchainpulse.theaslangroupllc.com/api/iso-receipt?tx=<transaction from PAYMENT-RESPONSE>&chain=<base|solana|ethereum|polygon|arbitrum|optimism|bsc|avalanche|robinhood> (x402, USD 0.05)","verify":"https://onchainpulse.theaslangroupllc.com/verify.html"},"category":"Software > Data & APIs"},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["memo"],"properties":{"memo":{"type":"string","description":"Seller-provided reconciliation memo for this purchase. Pass it to your payment tool where one is accepted (e.g. the memo input of Ramp pay-with-x402)."},"seller":{"type":"object","properties":{"brand":{"type":"string"},"catalog":{"type":"string"},"legal_name":{"type":"string"}}},"receipt":{"type":"object","properties":{"format":{"type":"string"},"obtain":{"type":"string"},"verify":{"type":"string"}}},"category":{"type":"string"}}}}},"description":"Live USGS river-gauge tick, deterministic. Answers \"what is the flow at this gauge right now\", \"is this river high or low vs this week\". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.","lastUpdated":"2026-09-14T19:47:26.335Z","serviceName":"WaterPulse","x402Version":2}],"binance":[{"type":"http","accepts":[{"asset":"0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d","payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","scheme":"eip3009","network":"eip155:56","maxAmountRequired":"10000000000000000"}],"resource":"https://waterpulse.theaslangroupllc.com/api/water/gauge","description":"Live USGS river-gauge tick, deterministic. Answers \"what is the flow at this gauge right now\", \"is this river high or low vs this week\". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.","lastUpdated":1787408529612,"x402Version":2}]}}