{"id":"1d1457a4-07b3-4e44-a338-dda07ecc07e4","shortId":"xCfQq5","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/41` is part of the lowpaymentfee.com platform, which offers a suite of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network at $0.02 per request. No API keys, rate limits, or upfront commitments are required — callers simply attach an x402 payment header to each request.\n\nThe specific `/api/v1/ach/41` path is listed under \"Premium API Access\" but the crawled site does not provide detailed documentation for this particular route. The site's docs, pricing, and API pages all render only a wallet-connect prompt with no further technical content. Based on the URL pattern (\"ach\" likely refers to ACH — Automated Clearing House banking transfers), this endpoint may relate to financial or payment processing functionality, but this is speculative given the lack of documentation.\n\nThe x402 challenge is live and well-formed: it advertises USDC (contract `0x8335...2913` on Base) with a maxAmountRequired of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The endpoint accepts POST requests and returns `application/json`. Without request/response schema documentation, callers will need to experiment or contact the provider to understand the expected input and output formats.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","ach-endpoint","json-response"],"categories":["finance","infrastructure"],"synonyms":["ACH API","payment processing API","x402 API","USDC micropayment","Base network API","low fee API","pay-per-call API","automated clearing house"],"warnings":["No documentation available for /api/v1/ach/41 — the purpose and expected input/output are unknown","All doc pages (docs, pricing, API, README) render only a wallet-connect prompt with no technical content","The endpoint name 'ach/41' suggests ACH banking functionality but this is unconfirmed","No OpenAPI spec or schema is published"],"endpointUrl":"https://lowpaymentfee.com/api/v1/ach/41","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/41","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 USDC on Base), but there is no documentation for this specific endpoint — no request schema, no response schema, no description of what 'ach/41' actually does. The docs, pricing, and API pages all render only a wallet-connect prompt with no useful content.","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":"2026-04-19T01:02:21.276Z","embedding":[-0.022415161,-0.048675537,0.066467285,0.017501831,0.01802063,-0.01626587,0.011268616,0.03918457,0.044036865,-0.050811768,0.014808655,-0.064697266,-0.035614014,-0.019699097,-0.019989014,0.022506714,0.021514893,-0.0061187744,-0.046936035,0.023284912,0.012878418,-0.017807007,-0.007007599,0.033325195,0.0036258698,-0.038513184,-0.00970459,-0.032592773,-0.043548584,-0.057861328,0.016098022,-0.024383545,-0.016571045,0.0041007996,-0.023269653,-0.0011835098,-0.019760132,0.048614502,0.01411438,-0.014976501,0.0059432983,-0.04751587,0.036590576,-0.006248474,-0.044067383,-0.019241333,0.013252258,-0.02293396,-0.012184143,-0.012611389,-0.03656006,0.020599365,0.019012451,0.0064430237,0.006790161,0.030670166,0.022445679,-0.0084991455,0.022720337,0.018753052,0.019454956,-0.06793213,-0.024520874,-0.042022705,0.024230957,0.048095703,-0.018417358,0.053344727,0.01449585,0.072509766,0.02532959,0.054718018,0.034210205,-0.0015335083,-0.020690918,-0.013069153,-0.00050115585,0.022521973,-0.0017242432,-0.006752014,-0.014503479,-0.021652222,-0.056243896,-0.013031006,-0.0041503906,-0.066223145,-0.029266357,0.020599365,-0.032287598,0.036895752,-0.061187744,0.0009822845,-0.015258789,0.016113281,0.013656616,0.010543823,-0.029525757,0.008705139,0.004611969,0.014175415,0.0053520203,-0.037963867,0.024307251,0.022003174,0.02746582,0.042633057,0.037384033,0.033416748,0.009048462,0.002374649,-0.033050537,0.013656616,-0.02470398,-0.01612854,0.02746582,-0.020446777,-0.0093688965,0.026626587,-0.04135132,0.004371643,-0.031585693,0.03086853,0.019348145,-0.00041246414,0.025054932,-0.026016235,-0.014694214,0.015586853,-0.033843994,-0.009307861,0.035217285,0.01725769,0.013519287,-0.027114868,-0.026062012,0.001786232,-0.031463623,-0.0076522827,-0.05255127,-0.022750854,0.030181885,-0.014266968,0.024795532,0.040618896,-0.070373535,0.02407837,-0.026748657,0.026657104,-0.016906738,-0.015510559,-0.019821167,0.03189087,0.0025196075,-0.0032024384,-0.026550293,-0.013175964,-0.010406494,0.016494751,0.0007762909,0.032287598,0.011787415,0.016433716,0.025939941,-0.005054474,0.030838013,0.03942871,-0.0062065125,-0.05456543,-0.07940674,-0.026062012,-0.0129776,-0.012031555,-0.03945923,0.0059318542,-0.020980835,-0.07501221,-0.022735596,-0.0030345917,-0.006549835,-0.03086853,0.013023376,-0.0262146,0.018875122,-0.0077819824,-0.07397461,-0.0025672913,-0.028274536,0.028427124,0.0236969,0.006706238,0.038208008,-0.027267456,0.033081055,0.003238678,-0.02104187,-0.022460938,0.027420044,-0.025634766,0.032592773,-0.015571594,0.011108398,-0.023727417,0.028274536,0.07244873,0.004550934,-0.016174316,-0.016540527,-0.045196533,-0.035583496,-0.027236938,0.020492554,0.00027775764,0.017959595,0.04284668,-0.037994385,-0.015342712,0.013923645,0.026855469,0.008514404,0.011253357,-0.015304565,-0.024108887,0.026367188,0.043670654,-0.050872803,0.023330688,0.010864258,-0.0017023087,-0.0063667297,-0.035369873,0.0395813,0.016098022,-0.036102295,0.0031280518,-0.019226074,0.03591919,-0.004016876,0.015777588,-0.0054397583,-0.002620697,-0.030334473,-0.029449463,-0.0066184998,0.029159546,0.007247925,-0.022537231,-0.034973145,-0.054229736,0.06060791,0.041778564,0.032165527,-0.0027542114,0.011054993,-0.029296875,-0.024841309,-0.06921387,0.056762695,0.06665039,-0.021392822,-0.028182983,0.03555298,0.011398315,-0.0541687,0.015129089,-0.0021953583,-0.02279663,-0.016433716,0.015182495,-0.0473938,0.0075569153,0.005493164,0.050109863,0.066833496,-0.0012578964,-0.035736084,-0.024124146,-0.025680542,0.008354187,-0.031677246,-0.0082473755,-0.010597229,0.025802612,0.029067993,-0.0072288513,0.012161255,-0.00009536743,-0.012191772,-0.0074310303,0.030410767,-0.0044670105,-0.03503418,0.036621094,-0.012687683,-0.05847168,-0.004627228,-0.007671356,0.050109863,-0.049224854,0.045318604,-0.0011014938,0.012306213,0.066589355,0.008613586,-0.05722046,0.018066406,0.01537323,0.009353638,0.0496521,0.011260986,-0.0115737915,0.012718201,0.08319092,-0.02192688,-0.0119018555,0.01309967,0.005847931,0.028457642,0.0045776367,-0.06323242,-0.018127441,-0.012763977,-0.0076408386,0.019989014,-0.025939941,0.03741455,0.027130127,0.019958496,-0.01953125,0.010734558,-0.039367676,0.016616821,-0.036346436,0.014923096,-0.01776123,-0.03250122,0.02619934,0.0058135986,-0.03579712,0.024993896,0.05029297,0.035980225,-0.010246277,-0.0124435425,-0.015625,-0.015113831,-0.011665344,0.023757935,0.016342163,0.0211792,0.048736572,-0.029083252,0.008987427,0.022964478,0.032989502,0.017181396,0.013755798,-0.009475708,-0.08123779,-0.07330322,-0.022460938,-0.04550171,0.029541016,0.0067443848,0.0006995201,0.061035156,0.020568848,-0.030258179,-0.048980713,0.026275635,-0.048339844,-0.013999939,0.014129639,-0.020874023,-0.03866577,-0.009208679,0.008934021,0.013259888,0.016540527,0.036346436,0.028579712,0.059906006,0.033233643,-0.0015001297,0.0056114197,0.018630981,0.012954712,-0.0060577393,-0.008483887,-0.02746582,-0.029296875,0.041748047,-0.003791809,-0.006580353,-0.050476074,0.057128906,0.04586792,0.08288574,0.0053634644,0.016296387,0.03543091,-0.0052986145,0.022125244,-0.027648926,-0.01272583,-0.021255493,-0.029388428,0.016586304,-0.0124435425,0.0010280609,-0.027053833,0.027359009,0.0037670135,0.021316528,-0.04800415,0.050689697,-0.008018494,-0.02104187,0.026000977,0.026367188,0.043060303,0.060302734,-0.048217773,-0.0027999878,0.017730713,-0.02746582,0.0074768066,0.02848816,0.021728516,0.014884949,-0.062561035,-0.033843994,-0.0021953583,0.006931305,-0.0496521,-0.017349243,0.00522995,0.012550354,0.036865234,-0.0050735474,-0.05142212,-0.022232056,-0.0074043274,-0.039520264,0.012496948,-0.048431396,0.020446777,0.038116455,-0.0178833,0.0037879944,-0.0041999817,-0.00032567978,-0.03475952,0.020355225,0.021362305,0.019241333,-0.030792236,0.05609131,0.014915466,0.016021729,0.0052261353,0.040283203,-0.00064229965,0.036071777,0.05355835,0.0057411194,0.0026950836,-0.05960083,0.026977539,-0.05883789,0.0071029663,0.023834229,-0.026779175,0.004146576,-0.0008831024,-0.024917603,-0.02784729,0.0057411194,-0.027694702,-0.01675415,0.0031261444,-0.04046631,-0.0345459,-0.055541992,-0.012748718,-0.023620605,0.042053223,0.023330688,0.0084991455,-0.05670166,-0.009231567,0.024642944,0.006511688,0.012687683,-0.013504028,-0.0023498535,0.0049209595,-0.021850586,0.00274086,-0.010559082,0.026657104,-0.0034751892,-0.015113831,0.04345703,0.021865845,-0.0046844482,-0.0051651,0.014732361,0.026885986,-0.030029297,0.010002136,-0.011657715,0.0317688,0.012565613,-0.020812988,-0.05392456,0.030715942,0.0008234978,0.025314331,-0.03274536,-0.003648758,-0.030151367,0.011566162,0.017486572,0.005191803,0.008918762,0.0043640137,-0.05960083,-0.07739258,0.015701294,-0.010299683,0.059753418,0.03729248,0.0033435822,0.03189087,-0.021438599,-0.0030574799,0.01687622,-0.009925842,-0.011650085,-0.034210205,-0.029418945,-0.031463623,-0.025222778,-0.024673462,0.031311035,-0.009811401,0.021118164,-0.0132751465,-0.014633179,0.008796692,0.0011291504,-0.00012457371,-0.0002567768,0.0035629272,0.028808594,0.033599854,-0.0021209717,-0.049102783,0.019454956,-0.01789856,0.0025959015,-0.015266418,0.01348114,0.022155762,-0.025604248,-0.0022640228,-0.018417358,-0.002609253,-0.026428223,-0.0034046173,0.01838684,0.01524353,-0.0070877075,-0.018432617,0.019699097,-0.0013237,-0.052856445,-0.0124053955,0.0071907043,0.015853882,-0.046539307,-0.01651001,0.01335144,0.053710938,-0.017715454,-0.013450623,0.02658081,0.041656494,0.025543213,0.011039734,-0.01612854,0.03265381,0.0110321045,0.026977539,-0.0024280548,-0.0115737915,0.008392334,-0.004043579,0.010940552,0.01247406,-0.0012359619,0.001203537,-0.010520935,-0.011924744,-0.009124756,-0.04800415,0.031921387,0.01309967,0.034851074,-0.010543823,0.021575928,0.014015198,-0.0104522705,-0.016952515,0.0021686554,0.04547119,-0.008354187,-0.019821167,0.022262573,0.02029419,0.033843994,-0.040863037,0.014671326,0.009933472,-0.009231567,-0.030670166,-0.07086182,-0.025299072,0.0011081696,0.04574585,-0.012802124,0.033050537,0.030838013,-0.006336212,-0.0062828064,0.022415161,0.013977051,-0.042999268,-0.022415161,-0.0368042,-0.010871887,0.0019006729,-0.020065308,-0.026275635,0.009468079,-0.006259918,-0.028656006,0.0009264946,-0.010154724,-0.001127243,-0.010299683,0.0021629333,0.03265381,-0.0158844,0.014175415,-0.01524353,-0.032928467,-0.033599854,0.014862061,0.031341553,-0.03805542,0.013145447,-0.014572144,-0.0032100677,0.0019102097,0.010299683,0.024002075,0.036224365,0.0069503784,0.019012451,-0.03982544,0.040374756,-0.01927185,0.0112838745,-0.0050697327,-0.032989502,-0.014785767,-0.017074585,-0.017929077,0.027923584,-0.01109314,-0.01121521,-0.021270752,-0.03186035,-0.005886078,-0.050445557,0.04284668,0.023849487,0.04260254,-0.036895752,0.0062446594,0.0071144104,0.0073623657,-0.0068969727,0.014305115,0.009132385,0.015792847,0.028427124,-0.00069856644,-0.033843994,-0.024139404,-0.0231781,0.028640747,-0.042297363,-0.056610107,-0.016281128,0.033294678,-0.0061416626,-0.0076026917,-0.026931763,-0.025054932,-0.011772156,-0.04727173,0.023406982,-0.014770508,0.03375244,-0.0034809113,-0.030075073,-0.016357422,-0.016342163,-0.021347046,0.03845215,0.014404297,-0.005493164,-0.03390503,-0.0004541874,0.003293991,0.020217896,0.008308411,-0.009483337,0.0055274963,-0.016021729,-0.046722412,0.0071640015,0.0134887695,0.0031661987,-0.025161743,0.006401062,-0.049224854,0.011680603,-0.017974854,0.005508423,0.022766113,0.009864807,0.020889282,0.010910034,0.0109939575,-0.014556885,-0.02154541,-0.020431519,0.020370483,0.009841919,0.015342712,0.02734375,0.044281006,0.008422852,-0.041656494,-0.008331299,0.011474609,0.008613586,-0.02142334,0.015472412,-0.0066833496,0.00774765,-0.00008696318,-0.011154175,-0.01398468,-0.009933472,0.076171875,0.0007534027,-0.014923096,0.002023697,-0.03753662,0.016204834,0.04437256,-0.047576904,0.012870789,-0.035125732,0.020751953,-0.034820557,0.021270752,0.0119018555,0.004047394,-0.00081157684,-0.054992676,-0.009216309,0.00440979,-0.016983032,-0.07513428,-0.027282715,-0.07183838,0.016296387,-0.0011959076,-0.012611389,0.016342163,0.014350891,-0.017715454,-0.06738281,0.0070381165,0.03942871,0.018432617,0.014442444,-0.020065308,0.009468079,0.04260254,-0.012039185,-0.012573242,0.018005371,-0.025756836,-0.02027893,-0.025741577,0.033447266,-0.0084991455,-0.006389618,-0.0066566467,0.022064209,0.023971558,-0.01625061,0.006298065,-0.0072135925,0.019805908,-0.01725769,0.023361206,-0.013465881,-0.0068092346,0.0368042,-0.052246094,0.031219482,0.016540527,-0.00023853779,0.017700195,0.021972656,0.01953125,-0.027389526,-0.015701294,0.0057258606,0.010467529,0.033111572,-0.026351929,0.0345459,0.014884949,0.011436462,-0.0021915436,-0.0134887695,-0.029464722,-0.025390625,-0.04196167,0.04586792,0.014137268,-0.0017051697,-0.003944397,0.003238678,0.002664566,0.0042495728,-0.0014238358,-0.010101318,-0.03086853,0.006893158,0.014282227,0.007843018,0.01335144,0.006088257,0.021774292,0.018234253,0.04940796,0.024459839,-0.010307312,-0.017074585,0.021865845,-0.0052108765,0.0121536255,0.041778564,0.016159058,0.00089645386,0.029067993,0.008766174,-0.0463562,-0.0053367615,-0.006088257,-0.0028438568,-0.002363205,-0.0149002075,-0.007926941,-0.01033783,0.00712204,-0.013885498,-0.04171753,0.0024414062,-0.027313232,-0.018432617,-0.0033435822,-0.0022201538,0.026519775,0.008720398,-0.0022468567,0.011001587,0.0024318695,0.042236328,-0.0009880066,0.0012931824,0.036376953,0.04257202,0.0035629272,-0.008224487,-0.015823364,-0.01234436,0.015296936,-0.00074243546,-0.033294678,0.002128601,0.031951904,-0.013885498,0.027160645,-0.023101807,0.0362854,-0.0184021,-0.0003902912,0.0015077591,0.0026493073,-0.0038719177,0.026290894,-0.04373169,0.034332275,0.009086609,-0.03161621,-0.0066070557,-0.014533997,-0.034973145,0.021484375,0.0061912537,0.0075149536,0.02281189,-0.009391785,0.01776123,-0.04647827,-0.008171082,-0.0056266785,-0.030212402,-0.023620605,0.01878357,-0.006664276,-0.015960693,0.019332886,-0.040130615,0.039916992,-0.041503906,0.021759033,0.00056791306,0.013748169,-0.010787964,-0.016494751,-0.013084412,-0.020050049,-0.009742737,0.008872986,0.00022625923,0.051971436,0.018936157,0.03463745,0.049224854,0.023254395,0.005973816,-0.023986816,-0.033813477,0.007583618,-0.0044021606,0.018722534,-0.014465332,0.060760498,0.024459839,0.0012102127,0.03567505,0.034820557,0.033477783,-0.009407043,0.007019043,-0.01335144,-0.015281677,-0.020477295,0.028839111,-0.0012216568,0.048583984,-0.030899048,0.019226074,0.021896362,0.041046143,-0.033447266,0.021652222,0.06488037,0.00472641,-0.018585205,0.037841797,-0.02015686,-0.012054443,-0.013183594,-0.02848816,0.041778564,-0.0038909912,0.0473938,0.042297363,0.021957397,-0.007537842,0.03173828,-0.030685425,-0.01876831,0.050750732,0.034973145,-0.028640747,-0.017211914,-0.015220642,0.018692017,-0.043762207,-0.02331543,0.014961243,-0.005001068,0.0068473816,-0.01033783,-0.0026988983,-0.011947632,0.009986877,0.02230835,0.01776123,-0.015075684,0.03186035,0.024963379,0.0082092285,0.02619934,0.02204895,0.016189575,-0.025100708,-0.020553589,0.002325058,0.039642334,-0.02406311,-0.00844574,0.012969971,0.019683838,0.0513916,0.052947998,-0.02468872,0.0012254715,0.020431519,-0.005924225,-0.02180481,0.05380249,0.03250122,0.0126571655,0.03253174,0.013717651,0.049987793,-0.03692627,0.009918213,-0.002374649,0.011627197,-0.0042304993,-0.0059165955,0.017974854,-0.012496948,0.023452759,0.0027809143,-0.0076789856,0.011703491,0.026672363,-0.017791748,0.0051841736,-0.001953125,0.031280518,-0.0023918152,-0.0075569153,0.01737976,-0.0099105835,0.027130127,0.0020599365,0.040740967,-0.016693115,0.006011963,-0.0058021545,0.00023555756,0.006248474,0.0132751465,-0.043426514,0.021591187,-0.00082588196,0.0007286072,-0.026062012,-0.0051727295,0.018615723,-0.02708435,0.0093688965,0.0121154785,-0.0009288788,0.0008392334,0.027420044,0.018997192,0.011619568,-0.0013465881,-0.021575928,0.009773254,0.059814453,0.010940552,0.0019264221,-0.023330688,-0.0012397766,0.009155273,0.0022182465,-0.011627197,-0.00349617,-0.022262573,-0.00090646744,0.033203125,0.018127441,0.02255249,0.028411865,-0.027496338,0.0016231537,0.0051956177,0.02784729,-0.003206253,-0.0035877228,-0.014671326,0.024108887,-0.026733398,0.04348755,0.024017334,0.013389587,0.03286743,-0.016174316,-0.028182983,0.0033035278,-0.0119018555,0.024856567,-0.023025513,0.0073280334,0.0032176971,0.033935547,-0.027282715,-0.029541016,0.00055265427,-0.019363403,-0.019989014,-0.0129852295,0.015205383,-0.0008955002,0.02659607,0.027694702,0.015411377,-0.0287323,0.05645752,-0.00667572,0.04724121,-0.0015668869,-0.012756348,0.025100708,0.016204834,0.033691406,0.01701355,0.005016327,-0.035980225,0.035736084,0.029647827,0.04296875,0.013122559,0.014015198,-0.013870239,0.04647827,-0.0059318542,0.043304443,-0.014137268,-0.0112838745,0.008636475,-0.012649536,-0.012130737,0.01727295,0.0044059753,0.023757935,0.052124023,-0.021820068,-0.010940552,-0.015304565,-0.007827759,0.010375977,-0.019378662,0.011878967,-0.0045204163,-0.024917603,0.009803772,-0.027694702,-0.018585205,0.030975342,0.009292603,-0.04776001,-0.026168823,0.00356102,0.033599854,-0.02458191,0.030303955,0.031311035,-0.008766174,0.012382507,0.043029785,-0.006011963,0.027130127,-0.016326904,0.014175415,0.037841797,0.008033752,0.0054512024,0.017410278,0.017822266,-0.032989502,0.0152282715,0.022384644,-0.013908386,0.0011034012,0.018615723,-0.021011353,-0.016448975,0.00017142296,-0.020751953,0.010673523,-0.015960693,-0.0071258545,-0.010032654,-0.0008773804,0.004245758,-0.012886047,-0.00642395,-0.021224976,0.003786087,0.038238525,0.013175964,-0.037384033,-0.0014152527,0.0016546249,0.008880615,-0.018966675,-0.011489868,0.012054443,-0.03387451,0.028686523,0.031021118,0.012184143,0.005645752,-0.021972656,-0.0067329407,0.030822754,0.026748657,0.015449524,0.0031909943,0.013259888,0.0008354187,-0.023590088,-0.008926392,0.00409317,-0.0116119385,0.0028648376,0.03768921,-0.012458801,-0.015731812,0.025482178,0.0041007996,0.008903503,0.008552551,-0.014022827,0.016235352,-0.01727295,0.007183075,-0.009765625,0.0040283203,-0.016464233,-0.030441284,-0.0019836426,0.034576416,0.05770874,-0.011505127,-0.0027065277,0.036224365,0.017944336,0.008308411,0.033050537,0.013595581,0.041046143,0.02229309,-0.009994507,-0.01524353,0.009796143,0.0048599243,-0.024597168,0.02130127,-0.010650635,-0.029037476,0.02178955,0.025909424,-0.0076293945,-0.023849487,-0.005420685,-0.016571045,-0.014595032,0.020751953,-0.00037693977,0.0033569336,-0.038269043,-0.0038452148,0.016418457,-0.013122559,-0.025375366,-0.023620605,0.013137817,-0.01802063,-0.058013916,0.013809204,-0.02078247,0.016723633,-0.017150879,-0.0003466606,-0.005874634,0.010368347,-0.018707275,0.005367279,0.014091492,0.022109985,0.025680542,-0.005844116,0.031585693,-0.017364502,-0.01939392,-0.0022277832,-0.0022239685,-0.023040771,0.033050537,0.00058221817,0.026443481,0.029769897,0.017791748,-0.0046806335,-0.007671356,-0.0002875328,-0.017181396,-0.013290405,-0.012702942,0.028411865,0.007286072,-0.00006759167,-0.0059432983,0.027542114,-0.026367188,-0.014152527,0.04269409,0.054229736,0.0049209595,0.03048706,-0.0049705505,-0.006500244,-0.011329651,-0.0027198792,-0.010154724,0.013008118,0.0047073364,0.013328552,-0.00035214424,0.011436462,0.0023422241,-0.02017212,-0.0051574707,0.030822754,0.0049972534,-0.0104599,0.030792236,0.021392822,0.00198555,-0.02355957,-0.010902405,0.017425537,0.030914307,-0.0034809113,-0.0039711,-0.009109497,0.0102005005,-0.00084495544,0.013465881,0.032165527,-0.027267456,-0.04559326,-0.01210022,0.004386902,0.023468018,0.0055389404,0.010215759,-0.009941101,0.014251709,-0.012718201,-0.018493652,-0.01789856,0.02659607,0.002122879,-0.008682251,-0.008491516,-0.016479492,0.022583008,-0.01977539,-0.014175415,-0.0287323,-0.020523071,-0.014053345,-0.013069153,0.023239136,0.021270752,-0.003484726,-0.001991272,-0.006839752,-0.015533447,0.0017089844,0.024124146,-0.01234436,-0.0035095215,0.029647827,0.028411865,-0.010734558,0.024597168,0.002298355,-0.0038337708,0.012374878,-0.008895874,0.017868042,-0.016159058,0.03010559,-0.018371582,0.015319824,0.025756836,-0.010978699,0.00945282,-0.037506104,-0.0014448166,-0.0134887695,0.0037059784,0.029083252,-0.013259888,-0.016647339,-0.0017213821,-0.015548706,-0.024841309,-0.0066108704,0.018035889,0.027923584,-0.0048675537,0.05303955,-0.03540039,-0.00844574,0.013900757,0.010978699,-0.022232056,0.0020065308,0.030639648,-0.00207901,0.023529053,-0.020889282,-0.017501831,-0.031951904,-0.00011730194,0.023651123,-0.0067329407,-0.0009832382,0.021087646,0.0034370422,0.024108887,0.0017814636,0.014556885,0.019607544,-0.0068588257,0.018615723,-0.005382538,0.048614502,0.008361816,-0.037628174,0.01499176,0.013961792,-0.030685425,-0.00064373016,-0.011154175,0.01852417,-0.04650879,0.015205383,-0.0004298687,0.023071289,-0.015144348,-0.0057640076,-0.021118164,0.0127334595,-0.041870117,-0.0070381165,-0.03152466,0.024719238,0.03387451,-0.006336212,0.047943115,-0.0021381378,-0.012649536,0.0118255615,0.03262329,-0.0011320114,-0.037872314,-0.01272583,0.010238647,0.0025749207,0.0069732666,0.022705078,-0.02330017,-0.023590088,-0.0025959015,-0.013031006,0.013786316,-0.00035619736,0.026504517,-0.0004272461,0.024505615,-0.0059776306,0.04156494,-0.023117065,-0.0049858093,0.011009216,0.0011310577,0.04296875,0.017608643,-0.015914917,0.009254456,0.013710022,-0.03060913,0.044403076,-0.012145996,0.019134521,-0.015434265,-0.00712204,-0.029159546,-0.03564453,-0.025604248,0.0013017654],"createdAt":"2026-04-18T18:40:35.264Z","updatedAt":"2026-04-27T22:32:47.175Z","lastSeenAt":"2026-04-27T22:32:47.175Z","tsv":"'/api/v1/ach/41':40,106 '/request':12,30 '0.02':11,29,81,209 '000':204 '0x8335':195 '20':203 '2913':196 '6':212 'ACH API' 'Base network API' 'USDC micropayment' 'accept':216 'access':113 'ach':5,23,153,157 'ach-endpoint' 'advertis':192 'ai/ml':60 'analyt':59 'api':16,34,56,85,112,133 'application/json':221 'attach':96 'autom':158 'automated clearing house' 'bank':161 'base':8,26,78,148,198,205 'base-network' 'call':4,22 'caller':94,226 'challeng':184 'clear':159 'commit':91 'connect':141 'contact':232 'content':147 'contract':194 'crawl':116 'data':58 'decim':213 'detail':121 'doc':130 'document':122,181,225 'endpoint':6,24,38,67,164,215 'equal':208 'expect':238 'experi':230 'finance/web3':62 'financi':168 'form':190 'format':242 'function':172 'given':177 'header':100 'hous':160 'infer':61 'infrastructur':64 'input':239 'json-response' 'key':17,35,86 'lack':179 'like':154 'limit':88 'list':109 'live':186 'low fee API' 'lowpaymentfee.com':45 'maxamountrequir':201 'may':165 'need':228 'network':79 'no-api-key' 'offer':48 'output':241 'page':134 'part':42 'particular':125 'path':107 'pattern':152 'pay':2,20,53 'pay-per-cal':1,19 'pay-per-call API' 'pay-per-request':52 'payment':71,99,170 'payment processing API' 'per':3,21,54,82 'platform':46 'post':217 'premium':111 'price':131 'process':171 'prompt':142 'protocol':72 'provid':120,234 'rate':87 'refer':155 'relat':166 'render':136 'request':55,83,103,218 'request/response':223 'requir':18,36,93 'return':220 'rout':126 'schema':224 'settl':73 'simpli':95 'site':117,128 'span':57 'specif':105 'specul':176 'suit':50 'technic':146 'transfer':162 'understand':236 'unit':206 'upfront':90 'url':151 'usdc':14,32,75,193,210 'usdc-settlement' 'use':68,211 'util':65 'via':9,27 'wallet':140 'wallet-connect':139 'well':189 'well-form':188 'without':222 'x402':10,28,70,98,183 'x402 API' 'x402-payment'","prices":[{"id":"64cb116d-fd81-4cd0-82ce-42f72c2c206e","listingId":"1d1457a4-07b3-4e44-a338-dda07ecc07e4","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/41","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:35.264Z"}],"sources":[{"listingId":"1d1457a4-07b3-4e44-a338-dda07ecc07e4","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ach/41","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:35.264Z","lastSeenAt":"2026-04-27T22:32:47.175Z"}],"details":{"listingId":"1d1457a4-07b3-4e44-a338-dda07ecc07e4","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ach/41 \\\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 x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/ach/41"},{"claim":"USDC contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/ach/41"},{"claim":"All APIs priced at $0.02/request with no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Programmatic ACH-related queries or operations paid per call in USDC","Agent-driven financial workflows that need keyless, on-demand API access","Integrating pay-as-you-go financial endpoints into Web3 applications"],"bestFor":["Developers wanting zero-setup, pay-per-request financial APIs","AI agents that can settle x402 payments on Base in USDC","Projects needing ACH-related functionality without subscription commitments"],"notFor":["Users who need detailed API documentation before integrating","High-volume use cases where per-request pricing may add up versus flat-rate plans","Anyone without a USDC wallet on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:35.796Z"},"updatedAt":"2026-04-27T22:32:47.175Z"}}