{"id":"2247b11e-5125-4573-8b62-e75d5e02791e","shortId":"qDNnt7","kind":"x402","title":"Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required.","tagline":"Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required.","description":"This endpoint at `/api/v1/ach/19` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs settled via the x402 protocol on the Base network using USDC. The specific endpoint is labeled \"Premium API Access\" but falls under a path prefix suggesting ACH (Automated Clearing House) or payment-related functionality. No detailed documentation for this particular route was found in the crawl — the docs, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. It requires payment of up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises a flat $0.02/request pricing model across all its endpoints with no API keys, no rate limits, and no minimum commitments. Payment is made via the x402 `exact` scheme to the wallet address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.\n\nBecause the endpoint path (`/ach/19`) and the generic title \"Premium API Access\" provide very little information about what data or functionality is actually returned, prospective callers should be aware that the exact request/response schema is undocumented. The platform hosts many other endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services, all at the same price point.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","ach-related"],"categories":["finance","payments"],"synonyms":["ACH API","payment processing API","lowpaymentfee","x402 ACH endpoint","USDC pay-per-call","Base network API","automated clearing house API"],"warnings":["No documentation found for /api/v1/ach/19 — the endpoint's actual functionality is unknown","All non-root crawled pages (docs, pricing, README, api) returned only 'Connect wallet' with no content","The generic title 'Premium API Access' does not describe what the endpoint does","Request and response schemas are completely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/ach/19","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/ach/19","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base), but there is no documentation for this specific endpoint — no request schema, no response schema, no description of what /api/v1/ach/19 actually returns. The docs, pricing, and README pages were all empty beyond a wallet-connect prompt. This is effectively a stub listing.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-19T01:00:54.606Z","embedding":[-0.024154663,-0.049926758,0.059417725,0.013999939,0.025482178,-0.019119263,-0.005558014,0.041137695,0.052337646,-0.05618286,0.012580872,-0.062347412,-0.030136108,-0.024642944,-0.017562866,0.019485474,0.022201538,-0.016021729,-0.045562744,0.024810791,0.016357422,-0.015419006,-0.01576233,0.02999878,-0.0069007874,-0.036071777,-0.0118637085,-0.026748657,-0.035095215,-0.049041748,0.020828247,-0.024230957,-0.010055542,0.011734009,-0.021621704,0.000477314,-0.013931274,0.050994873,0.017089844,-0.02053833,0.0016593933,-0.045196533,0.015510559,-0.010108948,-0.051483154,-0.015975952,0.010902405,-0.013687134,-0.010757446,-0.004131317,-0.037719727,0.016296387,0.012435913,0.0004427433,0.006954193,0.032226562,0.019515991,-0.007873535,0.016204834,0.015731812,0.025787354,-0.060150146,-0.02017212,-0.026535034,0.013946533,0.054229736,-0.019836426,0.056732178,0.011428833,0.06329346,0.029266357,0.05645752,0.036468506,0.0062561035,-0.019500732,-0.0019483566,0.005405426,0.043670654,-0.0031089783,0.008178711,-0.019760132,-0.009216309,-0.05911255,-0.0063972473,-0.0019207001,-0.051605225,-0.041290283,0.020446777,-0.028549194,0.03866577,-0.05343628,0.0046691895,-0.014816284,0.015609741,0.015205383,0.013877869,-0.025344849,0.0038471222,0.0007343292,0.025878906,0.00447464,-0.04147339,0.024108887,0.010498047,0.030807495,0.029968262,0.027679443,0.032226562,0.005290985,-0.0007891655,-0.03314209,0.009170532,-0.021942139,-0.016220093,0.029296875,-0.009147644,-0.017089844,0.009132385,-0.028274536,0.013618469,-0.03741455,0.041778564,0.019500732,-0.0011959076,0.030410767,-0.03173828,-0.017105103,0.016235352,-0.032409668,-0.027313232,0.03488159,0.021606445,0.01878357,-0.01966858,-0.023803711,0.0064468384,-0.035736084,-0.01600647,-0.056152344,-0.035827637,0.029251099,-0.024017334,0.02973938,0.036895752,-0.0814209,0.0181427,-0.033966064,0.017654419,-0.028900146,-0.015930176,-0.023544312,0.029251099,0.0006723404,-0.009140015,-0.027816772,-0.007881165,-0.008399963,0.018600464,-0.014076233,0.035247803,-0.0034561157,0.019470215,0.027816772,0.005428314,0.035308838,0.03036499,-0.01133728,-0.07305908,-0.08270264,-0.020843506,-0.008155823,-0.008674622,-0.039215088,-0.0067977905,-0.021347046,-0.070739746,-0.038635254,0.005393982,-0.0073509216,-0.03668213,0.01285553,-0.03274536,0.013710022,-0.011817932,-0.07299805,-0.01737976,-0.031219482,0.03967285,0.0154418945,0.011367798,0.040618896,-0.017089844,0.046173096,0.024169922,-0.020645142,-0.029968262,0.02720642,-0.008476257,0.029891968,-0.01977539,0.0037269592,-0.039794922,0.029968262,0.072143555,0.022109985,-0.0035476685,-0.00094890594,-0.050872803,-0.039855957,-0.02394104,0.019485474,-0.010101318,0.016433716,0.041503906,-0.03665161,-0.021438599,-0.0024375916,0.026306152,0.01020813,0.016693115,-0.010543823,-0.02420044,0.018478394,0.05090332,-0.045837402,0.030029297,0.020095825,0.0016098022,-0.007911682,-0.025543213,0.04171753,0.021469116,-0.029037476,0.011169434,-0.0057373047,0.027740479,-0.00048017502,0.023498535,0.0065078735,0.0053749084,-0.029708862,-0.027374268,-0.0061531067,0.024932861,0.008079529,-0.019439697,-0.030807495,-0.06939697,0.060272217,0.04296875,0.041229248,0.015144348,0.006137848,-0.03515625,-0.024765015,-0.07922363,0.055633545,0.06536865,-0.020126343,-0.015548706,0.03111267,0.0073623657,-0.052642822,0.0082092285,0.0058059692,-0.021377563,-0.017486572,0.02128601,-0.04888916,0.015602112,0.00027751923,0.044158936,0.06689453,-0.012016296,-0.04071045,-0.028717041,-0.022155762,0.0020713806,-0.026672363,0.0009794235,-0.001543045,0.017700195,0.028884888,-0.010528564,0.01914978,0.0017709732,-0.0037956238,-0.011421204,0.020462036,-0.001335144,-0.04309082,0.019683838,-0.019760132,-0.06304932,0.0138168335,-0.00415802,0.053710938,-0.052124023,0.043060303,0.00031971931,0.011260986,0.052734375,-0.0033016205,-0.050323486,0.019622803,0.015335083,0.0022277832,0.05496216,0.008476257,-0.017028809,0.005821228,0.08300781,-0.01184845,-0.01486969,0.006011963,0.0008263588,0.026260376,-0.0041389465,-0.061828613,-0.018951416,-0.0047836304,-0.01940918,0.019683838,-0.023757935,0.04244995,0.01889038,0.013786316,-0.024353027,-0.00095939636,-0.04425049,0.010719299,-0.03677368,0.015975952,-0.022521973,-0.030075073,0.032806396,0.009857178,-0.0234375,0.02243042,0.05105591,0.0413208,-0.004180908,-0.017868042,-0.021026611,-0.008590698,-0.007637024,0.031402588,0.022018433,0.027420044,0.055358887,-0.03488159,0.003868103,0.023223877,0.028259277,0.021499634,0.0113220215,-0.0073890686,-0.078186035,-0.06488037,-0.023406982,-0.0385437,0.033111572,0.008216858,-0.00059366226,0.06585693,0.014503479,-0.03375244,-0.03463745,0.021316528,-0.047851562,-0.00969696,0.018722534,-0.011367798,-0.033325195,-0.012504578,-0.0016956329,0.014984131,0.018554688,0.0289917,0.028701782,0.057281494,0.036376953,-0.0067634583,0.0112838745,0.023391724,0.01209259,-0.016784668,-0.007598877,-0.03302002,-0.024368286,0.0357666,-0.0009717941,-0.010314941,-0.06213379,0.05343628,0.045440674,0.08520508,0.012451172,0.014625549,0.039855957,-0.0058250427,0.023025513,-0.024429321,-0.011009216,-0.021255493,-0.025527954,0.014045715,-0.015167236,0.0044937134,-0.018356323,0.03567505,0.0006146431,0.023040771,-0.04055786,0.04864502,0.00381279,-0.0028591156,0.023727417,0.014595032,0.037841797,0.05407715,-0.045440674,-0.0007362366,0.01398468,-0.040771484,0.0065994263,0.040222168,0.0064201355,0.004196167,-0.057281494,-0.041229248,0.0029087067,0.0041160583,-0.054473877,-0.016494751,0.0015602112,0.017105103,0.026870728,-0.017333984,-0.047668457,-0.028884888,-0.0058937073,-0.044677734,0.013595581,-0.047546387,0.020202637,0.032958984,-0.024169922,-0.0088272095,0.0038890839,-0.012519836,-0.028549194,0.012664795,0.015380859,0.003921509,-0.030258179,0.05432129,0.021072388,0.014701843,0.01096344,0.044281006,-0.0006918907,0.028381348,0.057861328,0.008964539,-0.0065307617,-0.06008911,0.035186768,-0.049102783,0.00022625923,0.018753052,-0.024551392,0.000042021275,0.007019043,-0.029373169,-0.03665161,-0.000767231,-0.02406311,-0.015037537,0.0031967163,-0.041809082,-0.030334473,-0.054992676,-0.012832642,-0.015510559,0.044647217,0.032287598,0.0023326874,-0.07092285,0.007205963,0.024398804,0.0056419373,0.018966675,-0.014450073,-0.012252808,-0.00705719,-0.0256958,0.0032100677,-0.008979797,0.03503418,0.0012903214,-0.009742737,0.03567505,0.016448975,-0.00074005127,-0.009628296,0.009284973,0.031173706,-0.033355713,-0.0031394958,-0.0087890625,0.033691406,0.006713867,-0.020614624,-0.04901123,0.033721924,0.0019817352,0.030136108,-0.029403687,-0.004043579,-0.016433716,0.0037631989,0.026748657,0.005973816,-0.0007176399,0.009361267,-0.055145264,-0.07537842,0.018157959,-0.017410278,0.04748535,0.027572632,0.009315491,0.021469116,-0.02130127,-0.0026836395,0.022232056,-0.016204834,-0.018936157,-0.028823853,-0.02796936,-0.031799316,-0.014389038,-0.021087646,0.033081055,-0.008430481,0.02116394,-0.007858276,-0.019042969,0.01084137,0.009521484,-0.010017395,0.010749817,0.008392334,0.033050537,0.043395996,-0.0073623657,-0.044067383,0.020584106,-0.023132324,-0.0019931793,-0.011207581,0.023132324,0.020614624,-0.017959595,0.0034542084,-0.015808105,0.0013751984,-0.034240723,0.00006574392,0.021057129,0.021362305,-0.011627197,-0.033996582,0.027374268,0.015930176,-0.0435791,-0.01360321,0.008651733,0.0075187683,-0.044158936,-0.0064086914,0.018981934,0.06335449,-0.018325806,-0.0019073486,0.0231781,0.039123535,0.024047852,0.006641388,-0.012954712,0.021972656,0.003063202,0.022750854,-0.006198883,-0.0016651154,0.0058059692,-0.0048713684,0.018157959,0.013618469,0.0018062592,0.000050604343,-0.017242432,-0.004688263,-0.010978699,-0.038085938,0.029708862,0.0071144104,0.038879395,-0.017089844,0.02520752,0.012954712,-0.014221191,-0.015686035,0.0017528534,0.040771484,-0.019439697,-0.022857666,0.023269653,0.01914978,0.03353882,-0.046539307,0.013008118,0.012420654,0.00068473816,-0.034576416,-0.060424805,-0.034179688,0.008430481,0.03817749,-0.005027771,0.027633667,0.03466797,0.0020961761,-0.0042495728,0.02355957,0.017288208,-0.03878784,-0.024291992,-0.041259766,-0.010978699,0.0038375854,-0.011062622,-0.02532959,0.00705719,-0.009132385,-0.023620605,-0.000027775764,-0.010528564,-0.009742737,-0.006160736,0.0037784576,0.04324341,-0.014945984,0.014854431,-0.030227661,-0.037719727,-0.026031494,0.015975952,0.035125732,-0.042236328,0.016998291,-0.004840851,0.0036582947,0.0031280518,0.0028152466,0.016906738,0.024505615,0.013450623,0.021255493,-0.04232788,0.040649414,-0.022949219,0.01763916,0.0052719116,-0.032440186,-0.003282547,-0.024169922,-0.017623901,0.030288696,-0.0069999695,-0.007827759,-0.027816772,-0.024551392,-0.000057160854,-0.050445557,0.036468506,0.01727295,0.03842163,-0.035949707,0.009475708,0.0035419464,0.01084137,-0.002614975,0.010604858,-0.00011384487,0.007247925,0.03237915,0.0018749237,-0.029556274,-0.02180481,-0.038024902,0.015945435,-0.044525146,-0.050445557,-0.018127441,0.024276733,-0.0018634796,-0.008262634,-0.035125732,-0.029708862,-0.007511139,-0.051757812,0.028366089,-0.008010864,0.030334473,-0.0012769699,-0.03475952,-0.009864807,-0.011405945,-0.012939453,0.03829956,0.019042969,-0.0015220642,-0.037750244,0.00028705597,0.008460999,0.023208618,-0.0064811707,-0.0029678345,-0.000033795834,-0.028152466,-0.050933838,0.002325058,0.013969421,-0.0016565323,-0.013633728,0.005783081,-0.038909912,0.0076675415,-0.016723633,0.003873825,0.022399902,0.0072402954,0.018310547,0.006980896,0.005958557,-0.010658264,-0.02178955,-0.024902344,0.021560669,0.010528564,0.00983429,0.033477783,0.03994751,0.0004553795,-0.027496338,-0.0034446716,0.010017395,0.0067977905,-0.025909424,0.011230469,-0.0008172989,0.009941101,-0.008094788,-0.008522034,-0.021347046,-0.004722595,0.072753906,0.005504608,-0.0138549805,0.00079393387,-0.026290894,0.021392822,0.03363037,-0.039764404,0.012664795,-0.03173828,0.025970459,-0.029785156,0.01449585,0.01360321,0.010772705,-0.003288269,-0.05255127,-0.012870789,0.012306213,-0.0184021,-0.076171875,-0.021621704,-0.06536865,0.0039787292,-0.0032730103,-0.016571045,0.012481689,0.0129470825,-0.012191772,-0.07336426,0.0137786865,0.04055786,0.01574707,0.017669678,-0.0124053955,0.014259338,0.04019165,-0.007881165,-0.018539429,0.03390503,-0.025970459,-0.024215698,-0.032043457,0.034606934,0.0028209686,-0.008010864,0.0036029816,0.016845703,0.028564453,-0.009338379,0.005580902,-0.013801575,0.017807007,-0.019165039,0.026016235,-0.01687622,-0.013595581,0.02406311,-0.046417236,0.022628784,0.01878357,0.010749817,0.0044136047,0.01890564,0.021469116,-0.030227661,-0.013748169,0.013931274,0.012588501,0.035888672,-0.024002075,0.032440186,0.015930176,0.0025997162,0.007881165,-0.0112838745,-0.025558472,-0.031707764,-0.04260254,0.040222168,0.0062446594,-0.0034179688,-0.002363205,0.00554657,-0.0012054443,-0.0046844482,0.0020637512,-0.013710022,-0.035736084,0.0079422,0.018554688,0.010894775,0.009567261,0.0052261353,0.030395508,0.01234436,0.04611206,0.028182983,-0.005580902,-0.0135269165,0.025619507,-0.009521484,0.007850647,0.038970947,0.01991272,0.010559082,0.031066895,0.011329651,-0.046722412,-0.006111145,-0.01222229,-0.011451721,-0.0025959015,-0.016418457,-0.015670776,-0.0119018555,-0.0011920929,-0.0027675629,-0.04336548,0.009033203,-0.02734375,-0.020950317,-0.0058250427,-0.004600525,0.01637268,0.0004196167,-0.0064849854,0.014137268,-0.0007352829,0.034057617,-0.008720398,-0.0029296875,0.040893555,0.036315918,0.014793396,-0.010368347,-0.022705078,-0.01966858,0.015167236,-0.004547119,-0.031097412,0.002046585,0.028823853,-0.01789856,0.023742676,-0.02305603,0.03201294,-0.017532349,0.0022144318,-0.0029296875,0.005832672,-0.0071792603,0.03503418,-0.03793335,0.01826477,0.008857727,-0.020706177,-0.003545761,-0.008377075,-0.042144775,0.021881104,-0.0016670227,0.0048713684,0.023468018,-0.013221741,0.017623901,-0.039611816,-0.0066490173,0.0022468567,-0.028076172,-0.034057617,0.027313232,-0.005355835,-0.00894928,0.011833191,-0.03564453,0.042419434,-0.03729248,0.017333984,-0.010047913,0.01374054,-0.009590149,-0.009681702,-0.025222778,-0.019134521,-0.01676941,0.013313293,-0.00023436546,0.054626465,0.027053833,0.030410767,0.04763794,0.013298035,0.01134491,-0.020523071,-0.030960083,0.011253357,-0.0069732666,0.013687134,-0.009468079,0.059753418,0.028076172,0.0060768127,0.03894043,0.03857422,0.027267456,-0.012626648,0.0013389587,-0.011352539,-0.009185791,-0.024215698,0.026504517,0.0015954971,0.038085938,-0.026123047,0.018539429,0.028518677,0.044708252,-0.040771484,0.025619507,0.06549072,0.007583618,-0.023208618,0.043273926,-0.01234436,-0.008628845,-0.019485474,-0.03604126,0.04559326,-0.013839722,0.054107666,0.053497314,0.022140503,-0.012992859,0.025726318,-0.034820557,-0.025131226,0.05984497,0.026672363,-0.019180298,-0.01473999,-0.01852417,0.014625549,-0.04473877,-0.03390503,0.0131073,-0.008514404,0.001950264,-0.008277893,-0.0065612793,-0.018508911,0.013328552,0.02243042,0.02519226,-0.022277832,0.036376953,0.03262329,0.009178162,0.02609253,0.013648987,0.028259277,-0.02178955,-0.013374329,-0.0026130676,0.029663086,-0.024917603,-0.005458832,0.015365601,0.014167786,0.055847168,0.061523438,-0.019973755,0.011878967,0.029968262,0.0011415482,-0.022125244,0.05770874,0.038146973,0.017654419,0.028335571,0.013282776,0.051361084,-0.038269043,0.00944519,0.006980896,0.010894775,-0.0044136047,-0.010879517,0.016113281,-0.02268982,0.029266357,-0.005203247,-0.0071372986,0.0107803345,0.030212402,-0.012458801,0.0009455681,-0.0077934265,0.021560669,-0.008216858,-0.00995636,0.015930176,-0.0076293945,0.030258179,-0.0035381317,0.03778076,-0.022232056,0.008041382,-0.0005979538,-0.0016860962,0.009567261,0.0072402954,-0.038757324,0.016174316,0.0015096664,0.0034999847,-0.030960083,-0.0072402954,0.02017212,-0.020080566,0.019638062,0.0062561035,-0.0036849976,0.0037498474,0.028671265,0.019104004,0.0066871643,-0.0015068054,-0.025970459,0.018081665,0.053710938,0.01309967,0.008369446,-0.02027893,0.00013160706,0.007358551,-0.0074539185,-0.013465881,-0.0067596436,-0.025344849,-0.0057144165,0.024612427,0.027633667,0.015853882,0.040374756,-0.02027893,-0.0075187683,0.0066986084,0.021652222,-0.0034599304,-0.004005432,-0.011077881,0.024230957,-0.0211792,0.05255127,0.033477783,0.0135269165,0.029922485,-0.021392822,-0.027816772,0.007270813,-0.002500534,0.022125244,-0.01676941,0.00062704086,0.00087308884,0.038391113,-0.023880005,-0.030776978,0.0029335022,-0.02166748,-0.019470215,-0.017166138,0.015159607,-0.00018692017,0.027496338,0.027679443,0.0155181885,-0.02494812,0.06518555,-0.005115509,0.045532227,-0.0040779114,-0.017791748,0.03250122,0.016204834,0.036224365,0.023971558,0.0071868896,-0.029968262,0.040222168,0.03125,0.04611206,0.010223389,0.012214661,-0.0138549805,0.03869629,-0.0030059814,0.03237915,-0.018661499,-0.0011978149,0.009933472,-0.011299133,-0.0049476624,0.012992859,-0.0003311634,0.012237549,0.052368164,-0.017608643,-0.017303467,-0.013725281,-0.011047363,0.020202637,-0.016555786,0.014312744,-0.010375977,-0.032073975,0.013504028,-0.031036377,-0.021697998,0.022384644,0.007156372,-0.045440674,-0.025344849,0.006374359,0.021560669,-0.020950317,0.024597168,0.033996582,-0.0017728806,0.01209259,0.041778564,-0.0085372925,0.029769897,-0.010398865,0.018310547,0.03353882,0.009246826,-0.0027446747,0.0056266785,0.01902771,-0.022781372,0.011375427,0.026855469,-0.0209198,-0.0044784546,0.011199951,-0.027389526,-0.014320374,-0.0023460388,-0.021408081,0.014076233,-0.022491455,-0.004901886,-0.007160187,-0.0028190613,0.002380371,-0.0067253113,-0.0070228577,-0.020004272,0.008323669,0.04135132,0.0143585205,-0.041290283,-0.0054016113,-0.0029087067,0.015533447,-0.022979736,-0.019744873,0.010116577,-0.029556274,0.035614014,0.02458191,0.006275177,0.0068244934,-0.026321411,0.0015230179,0.03353882,0.024047852,0.014854431,0.012886047,0.005470276,0.001042366,-0.020324707,-0.0026855469,0.0018472672,-0.00868988,0.003944397,0.032958984,-0.01449585,-0.020446777,0.02456665,0.0020256042,0.016296387,0.010513306,-0.017745972,0.013381958,-0.013206482,-0.00111866,-0.0036239624,0.011932373,-0.014152527,-0.021774292,-0.007194519,0.020462036,0.05102539,-0.007331848,-0.008323669,0.033050537,0.014854431,0.012390137,0.03945923,0.01725769,0.040222168,0.027313232,-0.012519836,-0.011459351,0.011924744,0.0032634735,-0.029434204,0.027053833,-0.012626648,-0.024749756,0.021697998,0.021392822,-0.008911133,-0.027755737,-0.013656616,-0.014205933,-0.0127334595,0.020736694,-0.0069122314,0.009498596,-0.027893066,0.0004284382,0.01159668,-0.016204834,-0.035339355,-0.028076172,0.011726379,-0.013824463,-0.064208984,0.012283325,-0.030654907,0.021011353,-0.014137268,-0.0031490326,-0.012359619,0.016082764,-0.016738892,0.006717682,0.008651733,0.01953125,0.022018433,0.00033688545,0.026824951,-0.022125244,-0.0256958,-0.0061798096,-0.0022010803,-0.015625,0.039855957,0.0023231506,0.028015137,0.036132812,0.009498596,-0.0054397583,-0.018356323,0.0025253296,-0.0149383545,-0.016830444,-0.009124756,0.025024414,0.012779236,-0.009513855,-0.008918762,0.03274536,-0.023742676,-0.019943237,0.036193848,0.061462402,0.002418518,0.032562256,-0.005970001,-0.009407043,-0.015022278,0.0018453598,-0.016357422,0.018554688,0.0043144226,0.012504578,0.00415802,0.0026988983,0.0064201355,-0.014022827,0.0055885315,0.03439331,0.001335144,-0.010536194,0.033325195,0.01525116,0.009963989,-0.025054932,-0.013893127,0.024261475,0.03656006,0.00032496452,-0.007511139,-0.009735107,0.008888245,0.0059165955,0.009147644,0.024276733,-0.027816772,-0.045043945,-0.011993408,-0.013969421,0.020126343,0.008712769,0.008117676,-0.0071372986,0.009223938,-0.014282227,-0.02218628,-0.020217896,0.028121948,0.0044441223,-0.019226074,-0.0069847107,-0.0209198,0.023132324,-0.027862549,-0.007843018,-0.023605347,-0.022750854,-0.018615723,-0.009803772,0.020980835,0.018051147,-0.0036945343,0.0016765594,-0.0126953125,-0.015327454,0.001080513,0.029327393,-0.009941101,-0.0050468445,0.027526855,0.024246216,-0.012260437,0.022888184,0.0010700226,-0.00042653084,0.018218994,-0.0065345764,0.013801575,-0.009086609,0.030319214,-0.0073623657,0.003030777,0.034057617,-0.009475708,0.0029582977,-0.036834717,-0.00079774857,-0.010818481,0.009460449,0.027160645,-0.01663208,-0.026687622,-0.0013895035,-0.021255493,-0.019073486,-0.006790161,0.00894165,0.030075073,-0.0062179565,0.039520264,-0.0335083,-0.019485474,0.012542725,0.0076446533,-0.017410278,0.007259369,0.033294678,0.005947113,0.013648987,-0.015327454,-0.014411926,-0.03186035,-0.0060043335,0.019821167,-0.0056762695,0.0007805824,0.013282776,0.0029964447,0.029586792,-0.001739502,0.010314941,0.016448975,-0.0031356812,0.024993896,-0.0073890686,0.039916992,0.0010185242,-0.037872314,0.010055542,0.011566162,-0.033050537,-0.006198883,-0.016738892,0.01424408,-0.0423584,0.017044067,-0.00007879734,0.031036377,-0.020111084,-0.0012683868,-0.024887085,0.007709503,-0.034606934,-0.0075645447,-0.0231781,0.025054932,0.030914307,-0.00074005127,0.03640747,0.00642395,-0.02243042,0.015167236,0.03756714,-0.003314972,-0.02973938,-0.019317627,0.01309967,-0.0012454987,0.01210022,0.023071289,-0.01626587,-0.021697998,0.005367279,-0.011993408,0.012832642,-0.010612488,0.0206604,0.0040359497,0.024429321,-0.0041542053,0.03050232,-0.0074539185,-0.00642395,0.019866943,0.008651733,0.04244995,0.019012451,-0.017715454,0.022537231,0.020950317,-0.0317688,0.05041504,-0.012710571,0.019195557,-0.01309967,-0.0027885437,-0.03186035,-0.027648926,-0.020401001,0.004386902],"createdAt":"2026-04-18T18:40:28.001Z","updatedAt":"2026-04-25T01:32:12.443Z","lastSeenAt":"2026-04-25T01:32:12.443Z","tsv":"'/ach/19':200 '/api/v1/ach/19':40 '/request':12,30,165 '0.02':11,29,152,164 '000':141 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':195 '0x8335':146 '20':140 '2913':147 '6':157 'ACH API' 'Base network API' 'USDC pay-per-call' 'accept':131 'access':76,207 'ach':5,23,84 'ach-related' 'across':168 'actual':218 'address':194 'advertis':161 'ai/ml':241 'analyt':240 'api':16,34,57,75,174,206 'autom':85 'automated clearing house API' 'awar':224 'base':8,26,65,142,149 'base-network' 'broad':50 'call':4,22 'caller':221 'catalog':51 'challeng':124 'clear':86 'commit':182 'confirm':125 'connect':115 'content':121 'crawl':104 'crypto':244 'data':214,239 'decim':158 'detail':94 'doc':106 'document':95 'endpoint':6,24,38,71,127,171,198,237 'equal':151 'exact':189,227 'fall':78 'financ':243 'flat':163 'found':101 'function':92,216 'generic':203 'host':234 'hous':87 'infer':242 'inform':211 'key':17,35,175 'label':73 'limit':178 'littl':210 'live':129 'lowpaymentfee' 'lowpaymentfee.com':45 'made':185 'mani':235 'minimum':181 'model':167 'network':66 'no-api-key' 'offer':48 'page':110 'part':42 'particular':98 'path':81,199 'pay':2,20,54 'pay-per-cal':1,19 'pay-per-request':53 'payment':90,136,183 'payment processing API' 'payment-rel':89 'per':3,21,55,153 'platform':46,160,233 'point':253 'post':132 'prefix':82 'premium':74,205 'price':107,166,252 'prompt':117 'prospect':220 'protocol':62 'provid':208 'rate':177 'readm':109 'relat':91 'request':56,133,154 'request/response':228 'requir':18,36,135 'return':112,219 'rout':99 'schema':229 'scheme':190 'servic':247 'settl':58 'span':238 'specif':70 'substant':120 'suggest':83 'titl':204 'undocu':231 'unit':143 'usdc':14,32,68,145,155 'usdc-settlement' 'use':67,156 'util':246 'via':9,27,59,186 'wallet':116,193 'x402':10,28,61,123,188 'x402 ACH endpoint' 'x402-payment'","prices":[{"id":"3fc7ae0e-87d2-4b3b-b27c-7d45bc440047","listingId":"2247b11e-5125-4573-8b62-e75d5e02791e","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/ach/19","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:28.001Z"}],"sources":[{"listingId":"2247b11e-5125-4573-8b62-e75d5e02791e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ach/19","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:28.001Z","lastSeenAt":"2026-04-25T01:32:12.443Z"}],"details":{"listingId":"2247b11e-5125-4573-8b62-e75d5e02791e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ach/19 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/ach/19"},{"claim":"Platform advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/ach/19"}],"useCases":["Programmatic ACH or payment-related data retrieval via a single paid API call","Agent-driven financial workflows that need on-demand access without subscription keys","Integrating low-cost payment data lookups into Web3 or crypto applications"],"bestFor":["Developers wanting zero-signup, pay-per-use API access settled in USDC on Base","AI agents that can autonomously pay for API calls via x402","Quick prototyping where avoiding API key management is valuable"],"notFor":["Users who need detailed API documentation and guaranteed response schemas before integrating","High-volume production workloads where per-request crypto settlement adds latency or cost overhead","Anyone who cannot transact in USDC on the Base L2 network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:36.043Z"},"updatedAt":"2026-04-25T01:32:12.443Z"}}