{"id":"f6dc7041-c8ec-4f4a-8518-7291b218455b","shortId":"J33x3H","kind":"x402","title":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific resource `/api/v1/accounts/156` is one of many endpoints offered by the platform, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, rate limits, or commitments required.\n\nThe x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base). The max amount required is 20,000 base units, which at 6 decimals equals $0.02. The payment scheme is \"exact\" with a 300-second timeout. The response MIME type is `application/json`.\n\nHowever, the specific functionality of the `/api/v1/accounts/156` endpoint is unclear. It does not appear in the site's listed API catalog, which covers analytics, AI, finance, and utility endpoints. There is no OpenAPI schema, no request/response documentation, and the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional content. The actual data returned by this particular endpoint is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response","no-api-key","post-method"],"categories":["api","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC API","Base network API","micropayment API","lowpaymentfee","premium API access"],"warnings":["The specific endpoint /api/v1/accounts/156 is not listed in the provider's own API catalog — its purpose is unclear.","No OpenAPI schema, request format, or response format documentation is available.","All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no substantive content.","The actual data or service returned by this endpoint is unknown — integrate with caution."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/156","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/accounts/156","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for this specific endpoint, no OpenAPI schema, no request/response examples, and the endpoint path (/api/v1/accounts/156) does not appear in the site's own catalog. The actual functionality is unknown.","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":"2026-04-19T01:30:54.276Z","embedding":[-0.019119263,-0.024139404,0.047698975,0.022094727,0.011306763,-0.03744507,-0.014328003,0.028823853,0.07867432,-0.08630371,0.031097412,-0.057891846,-0.028686523,-0.047332764,-0.033935547,0.014328003,-0.016586304,0.0070266724,-0.041290283,0.029724121,0.021377563,-0.034240723,-0.024719238,0.03164673,-0.0067481995,-0.019180298,-0.01928711,-0.024780273,-0.015411377,-0.043945312,0.041107178,-0.01852417,-0.002193451,0.022064209,-0.01348114,-0.020889282,-0.00050878525,0.039031982,0.030883789,-0.011360168,-0.0126571655,-0.05859375,-0.004322052,0.0095825195,-0.05996704,-0.0034313202,0.006034851,-0.017501831,-0.011260986,0.0055160522,-0.02633667,0.0030899048,0.0032958984,-0.004989624,-0.0016918182,0.0038394928,0.009429932,-0.00472641,0.010551453,0.020736694,-0.006919861,-0.06213379,-0.021591187,-0.010803223,0.0050811768,0.060821533,-0.008087158,0.052368164,0.015411377,0.056854248,0.024780273,0.060546875,0.030807495,0.017303467,0.0010700226,-0.003255844,0.008003235,0.056427002,-0.009498596,-0.026184082,-0.025741577,-0.009506226,-0.053466797,0.0025501251,-0.014724731,-0.041015625,-0.020141602,0.018249512,-0.031951904,0.025604248,-0.06689453,0.0059051514,-0.0074768066,0.0017166138,0.009361267,-0.022521973,-0.026992798,0.016845703,-0.009277344,0.015975952,0.015991211,-0.026611328,0.027893066,0.0025634766,0.032958984,0.058685303,0.022064209,0.023117065,0.0046577454,-0.015609741,-0.03173828,0.006465912,-0.004917145,-0.028030396,0.0031261444,0.00605011,-0.02331543,0.016662598,-0.021560669,0.01259613,-0.037139893,0.06817627,0.013183594,-0.0076675415,0.025421143,-0.042785645,-0.009849548,0.019638062,-0.02619934,-0.0098724365,0.016647339,0.01448822,0.024612427,-0.019195557,-0.035858154,0.012023926,-0.0104904175,-0.020553589,-0.05117798,-0.026290894,0.030319214,-0.03488159,0.03149414,0.02923584,-0.1048584,-0.0138168335,-0.0345459,-0.0022144318,-0.03353882,-0.0074501038,-0.008804321,0.022994995,-0.012901306,0.0013895035,-0.025283813,-0.02368164,0.004436493,0.03265381,-0.026870728,0.057800293,0.0104904175,0.031097412,0.033325195,0.01838684,0.02810669,0.04525757,0.0020961761,-0.06628418,-0.086364746,-0.021728516,-0.006538391,-0.008377075,-0.028366089,-0.0007033348,-0.010887146,-0.067993164,-0.018539429,-0.00023818016,-0.016052246,-0.04800415,0.0025501251,-0.020874023,0.008468628,-0.016326904,-0.06542969,-0.012832642,-0.017669678,0.066345215,0.028030396,0.01272583,0.040100098,-0.021514893,0.05996704,0.023727417,-0.02911377,-0.036590576,0.02659607,-0.008277893,0.008956909,0.008338928,0.006111145,-0.034118652,0.031829834,0.066711426,0.0146102905,-0.028213501,-0.0076789856,-0.05505371,-0.0440979,-0.022964478,0.012901306,0.0033245087,0.003829956,0.037963867,-0.031143188,-0.04055786,0.0017976761,0.007820129,0.012023926,0.053863525,-0.0030994415,-0.004486084,0.015136719,0.029159546,-0.042388916,0.03353882,0.037139893,0.017181396,-0.02734375,-0.021514893,0.018157959,0.031143188,-0.024230957,0.013046265,-0.024520874,0.031204224,-0.0067329407,0.02267456,0.02456665,-0.010719299,-0.01737976,-0.026046753,-0.017059326,0.030029297,0.021087646,-0.01398468,-0.027389526,-0.091796875,0.032226562,0.039794922,0.022521973,0.008857727,0.015609741,-0.035461426,-0.012191772,-0.06427002,0.056427002,0.06695557,-0.014328003,-0.021087646,0.021255493,-0.025177002,-0.03918457,-0.0030727386,-0.012550354,-0.048461914,-0.010574341,0.010154724,-0.053497314,0.004837036,-0.0034332275,0.02645874,0.05166626,-0.01461792,-0.04550171,-0.02861023,-0.005268097,0.013252258,-0.021530151,0.009094238,0.002002716,0.016021729,0.028717041,-0.004966736,0.017593384,0.0029392242,-0.0008177757,-0.0029735565,0.00333786,-0.0096206665,-0.03579712,0.0057029724,0.0053901672,-0.062072754,-0.002418518,-0.0074043274,0.0619812,-0.03479004,0.040771484,-0.0023059845,0.007835388,0.052612305,-0.008232117,-0.047302246,0.020584106,0.031097412,0.034301758,0.05307007,0.019485474,-0.025802612,-0.0107040405,0.057647705,-0.018051147,-0.014526367,0.017333984,0.0090789795,0.036621094,-0.00699234,-0.064086914,-0.03314209,-0.016433716,-0.03253174,0.003145218,-0.022140503,0.015701294,-0.018234253,0.011238098,-0.013328552,-0.003944397,-0.028900146,0.018295288,-0.026046753,0.011650085,-0.008621216,-0.001534462,0.024520874,0.011360168,-0.013725281,-0.008277893,0.043518066,0.017425537,-0.0020656586,-0.018814087,-0.029449463,-0.010925293,-0.0041503906,0.015792847,0.012794495,0.0031394958,0.042388916,-0.025054932,0.011230469,0.020492554,0.018310547,0.03567505,-0.0008826256,0.0039253235,-0.0758667,-0.050842285,-0.024398804,-0.038635254,0.023025513,0.016067505,-0.0048599243,0.058807373,-0.0050468445,-0.02659607,-0.045562744,0.022109985,-0.03567505,-0.0066490173,0.03463745,-0.015571594,-0.022598267,-0.006515503,-0.005332947,-0.0032653809,0.023513794,0.016983032,0.026855469,0.09008789,0.046051025,0.0068092346,0.0015478134,0.012535095,0.021911621,0.0006227493,-0.01663208,-0.029220581,-0.0090789795,0.028549194,-0.0026988983,-0.017349243,-0.078552246,0.050872803,0.02911377,0.08135986,0.019485474,0.0021018982,0.04446411,-0.027374268,0.008666992,-0.042785645,-0.028137207,-0.022354126,-0.03616333,0.019134521,-0.010353088,0.0020866394,-0.02720642,0.0340271,-0.004272461,0.023086548,-0.033447266,0.051940918,-0.0037155151,-0.010520935,0.016647339,-0.005870819,0.051971436,0.0440979,-0.03704834,0.039398193,0.023223877,-0.041259766,0.0036525726,0.051513672,-0.013519287,-0.0051956177,-0.05630493,-0.012077332,0.013092041,-0.006313324,-0.05001831,-0.008956909,0.003829956,0.027053833,0.0335083,-0.022384644,-0.023513794,-0.0043525696,-0.004837036,-0.058685303,-0.018417358,-0.02998352,0.0015907288,0.04248047,-0.036987305,-0.0004415512,0.023101807,0.013046265,-0.02003479,0.006591797,0.022033691,-0.0014219284,-0.04272461,0.027008057,0.010375977,0.020889282,0.009147644,0.032409668,0.017868042,0.02760315,0.055114746,0.013801575,-0.015426636,-0.057495117,0.019714355,-0.05895996,-0.0017518997,0.023330688,-0.024291992,0.0055122375,-0.009849548,-0.022750854,-0.023223877,0.0038471222,-0.03717041,0.0039367676,0.014762878,-0.026794434,-0.03552246,-0.04421997,-0.005455017,0.0019664764,0.06542969,0.018585205,0.008255005,-0.055419922,-0.005004883,0.014015198,0.018432617,0.0062179565,-0.0149002075,-0.0036945343,-0.033111572,-0.014556885,-0.023422241,-0.015823364,0.017440796,-0.008056641,-0.011520386,0.0362854,0.0042877197,0.0154800415,-0.0018758774,0.0068893433,0.018005371,-0.03564453,0.0052948,-0.017822266,0.053527832,-0.004196167,-0.015975952,-0.049926758,0.0423584,0.005443573,0.031921387,-0.034729004,-0.0076065063,-0.004081726,0.015388489,0.005870819,-0.015899658,-0.010017395,-0.010345459,-0.05078125,-0.08660889,0.035705566,-0.011405945,0.030670166,0.014091492,0.002986908,0.023162842,-0.002603531,0.0021266937,0.03744507,-0.016708374,-0.017318726,-0.028747559,-0.023025513,-0.021514893,-0.017440796,-0.007091522,0.009262085,-0.022262573,0.0149383545,-0.0051193237,-0.00969696,0.02230835,-0.0014429092,-0.005432129,0.020935059,0.00082445145,0.012489319,0.045715332,0.012565613,-0.03918457,0.017959595,0.0024719238,-0.00052547455,-0.004688263,0.051696777,0.037322998,-0.009902954,-0.008277893,-0.009346008,-0.0063171387,-0.022018433,0.0068893433,-0.0015201569,0.026931763,-0.006713867,-0.035949707,0.020996094,0.00856781,-0.04019165,-0.013244629,0.022827148,0.008087158,-0.035308838,0.022613525,0.030136108,0.06378174,-0.03213501,0.0027675629,0.010444641,0.041168213,0.030303955,0.008460999,-0.015686035,0.017929077,-0.0055007935,0.017913818,0.0014886856,-0.016540527,0.005367279,0.0052833557,0.03164673,0.017547607,0.0077209473,-0.01285553,-0.024536133,-0.011619568,-0.006275177,-0.023834229,0.013504028,0.029403687,0.024673462,-0.021865845,0.014091492,0.014266968,-0.033081055,-0.014793396,0.0007739067,0.034088135,-0.01398468,-0.026870728,0.012199402,0.018295288,0.036956787,-0.058013916,-0.008972168,0.015106201,0.018432617,-0.027572632,-0.04071045,-0.030319214,0.008758545,0.039398193,-0.00009328127,0.016403198,0.02079773,0.0046539307,-0.005596161,0.0211792,0.0132369995,-0.010887146,-0.010665894,-0.037384033,0.007835388,-0.0013208389,-0.0057525635,-0.036468506,0.016464233,-0.017486572,-0.025756836,0.004924774,-0.013183594,0.0025119781,-0.0021362305,0.009056091,0.027893066,-0.012298584,0.0124053955,-0.024307251,-0.030273438,0.003774643,0.0113220215,0.019210815,-0.054901123,0.026885986,-0.011978149,-0.0030975342,0.0000333786,0.013435364,0.014091492,0.017211914,0.01235199,0.033111572,-0.054534912,0.032928467,-0.025253296,0.015731812,0.010253906,-0.027862549,-0.0021686554,-0.022644043,-0.02331543,0.0357666,-0.00774765,-0.0146865845,-0.026733398,-0.02835083,-0.008682251,-0.045288086,0.02558899,0.039978027,0.038024902,-0.025054932,-0.0031814575,0.011062622,0.010498047,-0.012504578,0.007457733,-0.0118255615,0.009002686,0.018157959,0.0013113022,-0.039093018,-0.024642944,-0.027923584,0.007949829,-0.04486084,-0.045440674,-0.0093307495,0.01537323,-0.0021800995,-0.0033721924,-0.031173706,-0.01776123,-0.0023460388,-0.046722412,0.008804321,-0.0010700226,0.026626587,0.0005517006,-0.020126343,0.002811432,0.006061554,-0.0119018555,0.03643799,0.016418457,-0.0015172958,-0.033111572,0.005504608,0.040802002,0.015808105,-0.0032253265,-0.0041275024,-0.027709961,-0.021469116,-0.05432129,-0.0077667236,-0.0034179688,-0.005290985,-0.014816284,-0.002691269,-0.048065186,-0.007144928,-0.015029907,-0.006752014,0.015701294,0.012023926,0.008003235,0.008033752,0.01600647,-0.006626129,-0.023544312,-0.03274536,0.026611328,0.011138916,0.0062065125,0.016540527,0.033325195,0.014663696,-0.019012451,0.01235199,0.010292053,0.02142334,-0.010406494,-0.005973816,-0.010002136,0.015670776,-0.01651001,-0.01108551,-0.035827637,-0.008575439,0.08911133,-0.0021362305,-0.017211914,-0.012840271,-0.015602112,0.011024475,0.028747559,-0.04058838,0.0033664703,-0.026565552,0.02420044,-0.023666382,0.013801575,0.006034851,0.028060913,-0.016113281,-0.047576904,-0.021606445,0.014701843,-0.025177002,-0.06222534,-0.016143799,-0.064697266,-0.0064353943,-0.014160156,-0.013038635,-0.000043153763,0.009086609,-0.015556335,-0.081970215,0.007118225,0.04425049,0.008346558,0.017929077,-0.017669678,0.011421204,0.0110321045,-0.040100098,-0.02180481,0.036010742,-0.02709961,-0.0048713684,-0.02520752,0.029144287,-0.0069007874,-0.021987915,0.021499634,-0.0051078796,0.026733398,-0.012931824,0.018234253,-0.014961243,0.007522583,-0.024047852,0.014526367,-0.010383606,-0.01235199,0.03704834,-0.052124023,0.024368286,0.023269653,0.008834839,0.003730774,0.033355713,0.032318115,-0.04547119,-0.010047913,0.018722534,0.0040893555,0.03326416,-0.025909424,0.04333496,0.02760315,-0.012550354,0.028717041,-0.014541626,-0.015258789,-0.044891357,-0.023071289,0.032348633,-0.011062622,0.024856567,-0.015808105,0.010406494,0.0211792,-0.008232117,0.009063721,-0.010757446,-0.028930664,-0.011428833,0.0047683716,0.002155304,0.0065193176,0.007335663,0.032928467,0.0143966675,0.040161133,0.017181396,0.0031871796,0.007007599,0.020690918,-0.025848389,0.012001038,0.0335083,0.005138397,0.005996704,0.01171875,0.020080566,-0.043701172,-0.023910522,-0.027999878,-0.015045166,-0.0022563934,-0.022537231,-0.01725769,-0.01612854,0.014846802,-0.0007572174,-0.03262329,-0.0009088516,-0.029190063,-0.022247314,-0.007019043,-0.009925842,0.019104004,0.000770092,0.0025234222,0.013725281,-0.0010871887,0.043670654,0.010093689,-0.00831604,0.03668213,0.04055786,0.01576233,-0.022888184,-0.0013189316,-0.010185242,-0.004863739,-0.004863739,-0.022735596,0.011528015,0.03656006,-0.015975952,0.014381409,-0.0055656433,0.02734375,-0.0146865845,0.0048103333,-0.009590149,0.023620605,-0.0065727234,0.043426514,-0.030014038,0.010437012,0.018707275,-0.009010315,-0.012924194,-0.0007958412,-0.035461426,0.0038108826,0.00422287,-0.0055885315,0.044555664,0.0038967133,0.023239136,-0.034240723,-0.016723633,0.0047035217,-0.030273438,-0.015403748,0.021270752,0.0034179688,-0.003967285,0.012313843,-0.032287598,0.033996582,-0.031555176,0.02583313,-0.00039720535,0.018814087,-0.0079422,-0.01940918,-0.014762878,-0.0024909973,-0.015777588,0.0021305084,-0.0041656494,0.05328369,0.028686523,0.020812988,0.043273926,0.01197052,0.007019043,-0.037597656,-0.026321411,0.0056381226,-0.024398804,0.021133423,-0.024642944,0.05996704,0.033935547,0.0019607544,0.017791748,0.035339355,0.03189087,0.00059604645,0.01373291,-0.009391785,0.016723633,-0.00021898746,0.027709961,0.0008907318,0.047851562,-0.018096924,0.026275635,0.02104187,0.030822754,-0.029403687,0.033172607,0.070007324,0.024520874,-0.014701843,0.03060913,-0.0014572144,-0.007408142,-0.015701294,-0.02420044,0.052001953,0.014289856,0.05154419,0.05441284,0.018508911,-0.0141067505,0.0335083,-0.030639648,-0.034088135,0.06390381,0.011856079,-0.011299133,-0.012802124,-0.0012264252,0.0088272095,-0.048736572,-0.023864746,0.026992798,-0.008384705,0.015151978,-0.0064735413,0.0044822693,-0.00919342,0.0132369995,0.030319214,0.019515991,-0.012512207,0.029724121,0.02331543,-0.008377075,0.01675415,0.0071868896,0.018707275,-0.031341553,-0.021514893,0.017105103,0.020111084,-0.0034599304,-0.020629883,0.020065308,0.014831543,0.05847168,0.040527344,-0.0206604,0.008110046,0.03564453,0.00894165,-0.018463135,0.042907715,0.03338623,0.011489868,0.041778564,0.035827637,0.024276733,-0.03137207,0.016098022,0.005004883,0.010299683,-0.016311646,-0.0073623657,0.009269714,-0.021270752,0.023880005,-0.000039219856,-0.013671875,0.019699097,0.024429321,-0.0076141357,-0.0115737915,-0.006275177,0.012687683,-0.012863159,-0.001083374,0.020202637,-0.019454956,0.028289795,0.008903503,0.027282715,-0.025100708,0.02696228,0.00075387955,-0.014762878,-0.004508972,0.030380249,-0.045837402,0.008239746,0.0012922287,-0.0038394928,-0.045776367,0.018310547,0.022720337,-0.00497818,0.025238037,0.011802673,0.00002604723,0.0059280396,0.015991211,0.0059814453,0.004016876,-0.0043258667,-0.023910522,0.025299072,0.038879395,-0.004951477,0.009140015,-0.030960083,-0.011375427,0.008239746,-0.010345459,-0.0113220215,-0.014808655,-0.021942139,-0.031829834,0.0154800415,0.032562256,0.015602112,0.034301758,-0.013183594,-0.011047363,0.0058250427,0.022842407,0.010063171,-0.0011692047,-0.023742676,0.0158844,-0.01739502,0.059265137,0.047058105,0.0079574585,0.024307251,-0.018127441,-0.024093628,-0.0072517395,-0.009933472,0.02508545,-0.017715454,0.0065956116,-0.00021231174,0.031204224,-0.024398804,-0.03829956,0.012268066,-0.013710022,-0.016403198,-0.027633667,0.0030059814,0.013618469,0.025253296,0.038085938,0.013587952,-0.026229858,0.06311035,-0.020965576,0.048553467,-0.003698349,-0.003168106,0.03692627,0.027267456,0.040130615,0.025009155,0.021957397,-0.029586792,0.009048462,0.039916992,0.022644043,0.012512207,-0.0007510185,-0.028579712,0.027053833,0.00045228004,0.028747559,-0.008651733,0.008705139,0.01889038,-0.009902954,0.0032482147,0.0027256012,-0.010879517,0.011581421,0.044067383,-0.03149414,-0.01058197,-0.01878357,-0.005542755,0.027374268,-0.009346008,0.005554199,-0.0006136894,-0.022216797,0.014831543,-0.028030396,-0.02230835,0.009590149,0.033111572,-0.036071777,-0.02255249,-0.011138916,-0.0018014908,-0.0211792,0.024124146,0.030273438,-0.010787964,0.0007572174,0.04449463,-0.012550354,0.022827148,-0.020889282,0.03250122,0.039001465,0.0046463013,-0.023498535,0.006790161,0.009635925,-0.018875122,0.011169434,0.04272461,-0.010948181,0.0010128021,-0.00031900406,-0.017837524,0.009185791,-0.009101868,-0.0102005005,-0.0017652512,-0.019119263,-0.014778137,-0.006603241,0.0050849915,-0.004058838,0.0050315857,-0.008331299,-0.011520386,0.015625,0.042236328,0.025375366,-0.048217773,-0.0077323914,0.011764526,0.017562866,-0.02255249,-0.014762878,0.009536743,-0.032073975,0.0127334595,0.016464233,0.0049972534,0.004447937,-0.024856567,0.0054512024,0.038909912,0.017471313,0.02067566,0.014526367,-0.00522995,0.027496338,-0.016555786,-0.0067634583,-0.0030097961,-0.013999939,0.012413025,0.02609253,-0.0107421875,-0.01689148,0.023620605,0.009117126,0.016693115,0.0019950867,-0.012329102,0.0155181885,-0.019378662,-0.015007019,0.0011348724,0.013458252,-0.024658203,-0.029953003,-0.0105896,0.014526367,0.0625,-0.022232056,-0.0039711,0.016433716,0.010002136,0.027053833,0.03805542,0.006401062,0.047546387,0.02166748,-0.02029419,-0.011802673,0.015464783,-0.0044555664,-0.025802612,0.01763916,-0.014846802,-0.03277588,0.0010118484,0.015991211,-0.0041122437,-0.017913818,-0.01448822,-0.006385803,-0.022232056,0.013748169,-0.01914978,0.014373779,-0.02796936,-0.010627747,0.0043754578,-0.006362915,-0.046081543,-0.027999878,-0.0020275116,-0.012794495,-0.05432129,0.0078125,-0.03286743,0.013214111,-0.012359619,0.00048542023,-0.009063721,0.021560669,-0.00724411,-0.003698349,0.006668091,0.025802612,0.016860962,0.0088272095,0.035247803,-0.017150879,-0.037750244,-0.01991272,-0.0056610107,-0.010383606,0.023666382,-0.004951477,0.038513184,0.02444458,-0.00057935715,-0.004547119,-0.017349243,-0.005958557,-0.006111145,-0.02406311,-0.019088745,0.020095825,0.009277344,-0.0030784607,-0.007774353,0.049041748,-0.021270752,-0.030532837,0.03149414,0.060546875,-0.0010442734,0.04034424,-0.021759033,-0.0072898865,-0.0184021,0.0049476624,-0.02796936,0.014541626,0.008049011,0.00970459,-0.0010108948,0.004776001,0.017547607,-0.010986328,-0.016571045,0.029159546,0.00019192696,-0.011642456,0.036376953,0.014923096,0.007171631,-0.01373291,-0.020889282,0.013084412,0.03781128,0.016448975,0.0064735413,-0.0073509216,0.016448975,-0.017700195,0.0061798096,0.021713257,-0.021987915,-0.045043945,-0.012046814,-0.029907227,0.014465332,0.012435913,0.0155181885,-0.00605011,0.013290405,-0.029403687,-0.027679443,-0.020584106,0.018096924,0.018814087,-0.00749588,-0.00818634,0.006450653,0.025787354,-0.032318115,-0.001865387,-0.048431396,-0.033843994,-0.0024604797,-0.019989014,0.013435364,0.013519287,-0.0074882507,0.010246277,-0.0009469986,0.010276794,0.00374794,0.028503418,-0.012931824,-0.0035991669,0.025421143,0.005619049,-0.02432251,0.0064735413,-0.0072364807,-0.0001705885,0.029220581,-0.0149002075,0.0051345825,-0.013084412,0.032073975,-0.009544373,-0.0033302307,0.033172607,0.0055236816,0.014328003,-0.030059814,-0.001914978,0.008110046,0.0017929077,0.037078857,-0.025405884,-0.010635376,0.0076026917,-0.02230835,-0.031707764,0.0057640076,0.015388489,0.039215088,-0.012130737,0.054260254,-0.022064209,-0.017974854,0.020874023,0.0029678345,-0.022476196,-0.007873535,0.03869629,0.0071105957,0.0008368492,-0.0058059692,-0.0043525696,-0.030212402,-0.0076293945,0.016143799,-0.008468628,-0.011917114,0.012458801,0.0043296814,0.04333496,-0.009750366,0.020385742,0.018981934,0.008422852,0.020584106,0.008865356,0.03970337,0.0068206787,-0.023208618,0.017471313,0.003440857,-0.019607544,-0.01007843,-0.012031555,0.0077590942,-0.046417236,0.016067505,-0.008964539,0.036315918,-0.016921997,0.0064468384,-0.01927185,0.00042128563,-0.044708252,-0.012084961,-0.034088135,0.0030384064,0.041870117,0.005683899,0.022064209,0.006187439,-0.020233154,0.0134887695,0.038024902,-0.013381958,-0.022491455,-0.01927185,0.008865356,0.005001068,0.0129776,0.009346008,-0.013839722,-0.02444458,-0.0021247864,-0.004348755,0.009674072,-0.014595032,0.010528564,0.010444641,-0.014419556,-0.008773804,0.02861023,0.005554199,0.0005054474,0.00466156,0.006755829,0.03842163,0.035980225,0.0038700104,0.031219482,0.006717682,-0.04425049,0.052124023,0.0005273819,0.029052734,-0.024536133,-0.017654419,-0.032104492,-0.026153564,-0.008979797,0.0045318604],"createdAt":"2026-04-18T18:41:17.514Z","updatedAt":"2026-04-22T17:01:14.639Z","lastSeenAt":"2026-04-22T17:01:14.639Z","tsv":"'/api/v1/accounts/156':47,152 '/request':13,28 '0.02':12,27,76,129 '000':121 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':112 '20':120 '300':137 '6':126 'Base network API' 'USDC API' 'accept':103 'access':7,22,38 'actual':202 'addit':199 'ai':63,170 'amount':117 'analyt':62,169 'api':6,21,37,88,165,188 'appear':159 'application/json':145 'base':9,24,84,114,122 'base-network' 'call':4,19 'catalog':166 'categori':59 'challeng':97 'commit':93 'confirm':98 'connect':194 'content':200 'contract':111 'cover':168 'data':61,203 'decim':127 'doc':185 'document':182 'endpoint':32,52,72,100,153,174,208 'equal':128 'exact':134 'financ':66,171 'function':149 'howev':146 'includ':60 'infrastructur':69 'json-response' 'key':89 'learn':65 'limit':91 'list':164 'live':102 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':64 'mani':51 'max':116 'micropayment API' 'mime':142 'network':85 'no-api-key' 'offer':53 'one':49 'openapi':178 'page':189 'particular':207 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payabl':79 'payment':42,108,131 'per':3,18,77 'platform':56 'post':104 'post-method' 'premium':5,20,36 'premium API access' 'price':74,186 'prompt':196 'protocol':43 'provid':35 'rate':90 'render':191 'request':78,105 'request/response':181 'requir':94,118 'resourc':46 'respons':141 'return':204 'schema':179 'scheme':132 'second':138 'settl':107 'site':162 'span':58 'specif':45,148 'timeout':139 'type':143 'unclear':155 'unit':123 'unknown':210 'usdc':15,30,81,110 'usdc-settlement' 'util':70,173 'via':10,25,39 'wallet':195 'web3':67 'x402':11,26,41,96 'x402 API' 'x402-payment'","prices":[{"id":"16565ba0-e961-4b53-bbba-50a418c4b548","listingId":"f6dc7041-c8ec-4f4a-8518-7291b218455b","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/accounts/156","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:41:17.514Z"}],"sources":[{"listingId":"f6dc7041-c8ec-4f4a-8518-7291b218455b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/156","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:41:17.514Z","lastSeenAt":"2026-04-22T17:01:14.639Z"}],"details":{"listingId":"f6dc7041-c8ec-4f4a-8518-7291b218455b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/156 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"All endpoints priced at $0.02 per request with no API keys, rate limits, or commitments","source_url":"https://lowpaymentfee.com"},{"claim":"Payment in USDC on Base network, maxAmountRequired 20000 base units (= $0.02)","source_url":"https://lowpaymentfee.com/api/v1/accounts/156"},{"claim":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/156"},{"claim":"Platform offers endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium API data with per-request USDC micropayments on Base","Agent-driven API consumption without pre-registration or API keys","Programmatic access to account-level data behind a paywall"],"bestFor":["Developers wanting zero-commitment pay-per-use API access","AI agents that can settle x402 payments autonomously","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:33.626Z"},"updatedAt":"2026-04-22T17:01:14.639Z"}}