{"id":"107cacb2-8dd0-418d-8895-9b8273bcbe06","shortId":"Hs2bsu","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/39` 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, paid in USDC on the Base network with no API keys, rate limits, or commitments required.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. Payment is settled on-chain using USDC (contract `0x8335...2913` on Base) with an exact payment scheme. The maxAmountRequired of 20000 base units corresponds to $0.02 (USDC uses 6 decimals). The platform advertises a broad suite of sibling endpoints covering sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, and more — all at the same per-request price.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the `/api/v1/accounts/39` endpoint specifically returns. The listing title \"Premium API Access\" is generic and does not clarify the endpoint's function. Prospective users should be aware that without documentation, the actual behavior of this specific endpoint is unknown.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","no-api-key","post-method","json-response"],"categories":["api","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","accounts endpoint","crypto-paid API"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'","The specific purpose of /api/v1/accounts/39 is undocumented and unclear","No OpenAPI schema or request/response examples provided","No robots.txt or agents.txt present"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/39","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/39","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the specific function of /api/v1/accounts/39 is entirely unknown. The docs pages are empty beyond a wallet-connect prompt.","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":"2026-04-19T00:18:07.212Z","embedding":[-0.025436401,-0.018188477,0.037017822,0.023040771,0.028259277,-0.03668213,-0.015098572,0.041870117,0.07824707,-0.07232666,0.025543213,-0.054626465,-0.024978638,-0.034057617,-0.032684326,0.017807007,-0.0082092285,0.005584717,-0.039764404,0.032440186,0.02748108,-0.026031494,-0.027297974,0.03677368,-0.0023326874,-0.02357483,-0.02279663,-0.017150879,-0.014183044,-0.037719727,0.043914795,-0.026123047,-0.0037193298,0.023788452,-0.011688232,-0.018539429,-0.0021514893,0.042053223,0.028030396,-0.019958496,-0.00019538403,-0.054107666,-0.0046691895,0.0027694702,-0.065979004,0.00730896,-0.00068855286,-0.018341064,0.002002716,0.019882202,-0.03250122,-0.0027198792,0.0047340393,-0.014862061,0.010246277,0.0065307617,-0.0043792725,-0.02243042,0.004676819,0.010231018,0.0014982224,-0.06774902,-0.014953613,-0.010719299,-0.0016527176,0.055419922,-0.0042381287,0.055786133,0.0033721924,0.057037354,0.044189453,0.05215454,0.039733887,0.017028809,0.0029125214,-0.0047683716,-0.0009126663,0.059448242,-0.011253357,-0.019577026,-0.027893066,-0.0037460327,-0.053894043,-0.0035266876,-0.021606445,-0.047546387,-0.016967773,0.017990112,-0.027130127,0.024642944,-0.060516357,0.0007286072,-0.006137848,0.0033054352,0.012275696,-0.006881714,-0.022460938,0.026641846,-0.025024414,0.023895264,0.012786865,-0.02999878,0.03125,0.000300169,0.038879395,0.061035156,0.025680542,0.022598267,0.0041503906,-0.021408081,-0.031402588,0.018554688,-0.0014276505,-0.015655518,0.0029468536,0.014381409,-0.015350342,0.018554688,-0.025909424,0.0143966675,-0.04055786,0.051696777,0.016708374,-0.0107421875,0.022720337,-0.045013428,-0.007385254,0.017532349,-0.030883789,-0.008300781,0.018463135,0.011749268,0.041503906,-0.01600647,-0.036895752,0.0048103333,-0.023223877,-0.012573242,-0.05380249,-0.030670166,0.03781128,-0.04083252,0.0154800415,0.0284729,-0.10070801,-0.023498535,-0.044128418,0.002538681,-0.03753662,-0.0031814575,-0.006099701,0.01802063,-0.02305603,-0.009346008,-0.030700684,-0.02029419,0.012184143,0.03427124,-0.018844604,0.05819702,-0.0007624626,0.025939941,0.02949524,0.010147095,0.03201294,0.03326416,0.0001937151,-0.075805664,-0.08905029,-0.02558899,0.0006084442,-0.020751953,-0.03149414,-0.00014424324,-0.0019273758,-0.061828613,-0.017456055,0.000045120716,-0.014122009,-0.030853271,-0.0024261475,-0.022140503,0.013465881,-0.0021457672,-0.066589355,-0.024276733,-0.018539429,0.06311035,0.021560669,0.009048462,0.037719727,-0.018081665,0.062438965,0.015312195,-0.026657104,-0.032165527,0.025390625,-0.006427765,0.008079529,0.003900528,0.0014629364,-0.03503418,0.026870728,0.06896973,0.019729614,-0.019882202,0.0021877289,-0.04940796,-0.047851562,-0.037078857,0.02394104,0.0029888153,0.011024475,0.037597656,-0.02532959,-0.044891357,-0.0012168884,0.017364502,0.015945435,0.05899048,0.0018367767,-0.004058838,0.013153076,0.017700195,-0.048034668,0.03845215,0.046661377,0.02053833,-0.02293396,-0.031951904,0.018630981,0.027313232,-0.029388428,0.013977051,-0.014915466,0.024215698,-0.0029411316,0.025939941,0.029464722,-0.015129089,-0.021713257,-0.028762817,-0.018341064,0.041931152,0.015022278,-0.02003479,-0.033721924,-0.091796875,0.04650879,0.04663086,0.043548584,0.0059013367,0.011413574,-0.03161621,-0.013244629,-0.07421875,0.052459717,0.07183838,-0.014602661,-0.028549194,0.010002136,-0.01701355,-0.038726807,-0.016235352,-0.009223938,-0.02734375,-0.020492554,0.011627197,-0.049468994,-0.0012407303,0.002817154,0.02482605,0.05142212,0.0002529621,-0.05130005,-0.029052734,0.008369446,0.007320404,-0.027374268,-0.00039935112,0.0013256073,0.016616821,0.03152466,-0.007347107,0.026672363,-0.003768921,0.0032138824,-0.0014543533,-0.0037879944,-0.009391785,-0.032165527,0.002904892,0.00894165,-0.057373047,0.0040283203,-0.0056762695,0.06695557,-0.04812622,0.03390503,-0.003917694,0.009727478,0.059783936,0.004009247,-0.05038452,0.016281128,0.021865845,0.029678345,0.046081543,0.0050621033,-0.039215088,-0.009544373,0.07366943,-0.017074585,-0.010932922,0.023132324,0.0104904175,0.039398193,-0.008850098,-0.06994629,-0.022018433,-0.020965576,-0.039611816,0.010055542,-0.025054932,0.0090408325,-0.018188477,0.000010550022,-0.022720337,0.008346558,-0.023986816,0.022827148,-0.03302002,0.0007958412,-0.020477295,-0.012084961,0.019119263,0.018112183,-0.011360168,0.0011796951,0.046173096,0.023162842,-0.00340271,-0.03555298,-0.021118164,-0.008354187,0.0034484863,0.015350342,0.022659302,0.009796143,0.048187256,-0.025375366,0.005012512,0.036590576,0.020202637,0.042999268,0.0014791489,0.0046081543,-0.06463623,-0.054107666,-0.027191162,-0.03942871,0.014602661,0.014724731,-0.0062828064,0.06149292,-0.0016813278,-0.017608643,-0.045196533,0.020874023,-0.04711914,-0.0068244934,0.048187256,-0.020629883,-0.026306152,-0.0059280396,0.0052108765,0.002784729,0.022354126,0.012283325,0.014877319,0.07873535,0.053253174,-0.00034594536,0.017486572,0.0028820038,0.022888184,-0.0019054413,-0.035369873,-0.023712158,-0.010368347,0.029281616,-0.0060310364,-0.017166138,-0.074523926,0.05227661,0.036346436,0.07305908,0.022598267,0.005634308,0.040130615,-0.020858765,0.006313324,-0.034484863,-0.020843506,-0.0234375,-0.047973633,0.030853271,-0.014274597,-0.013061523,-0.020767212,0.037475586,0.00077962875,0.029388428,-0.020904541,0.046173096,0.002046585,-0.012336731,0.023452759,0.012237549,0.042053223,0.054016113,-0.031921387,0.035888672,0.024551392,-0.03125,0.006149292,0.045074463,-0.027038574,-0.000541687,-0.0541687,-0.021499634,-0.00059366226,-0.0099487305,-0.05569458,-0.0059394836,0.0033416748,0.015991211,0.0390625,-0.0143966675,-0.02909851,0.0054779053,-0.01184082,-0.06161499,-0.023162842,-0.034820557,0.005722046,0.039245605,-0.032287598,-0.010826111,0.00983429,-0.008476257,-0.005886078,0.011001587,0.00724411,0.00069475174,-0.056732178,0.024169922,0.015258789,0.022476196,0.010902405,0.03692627,0.024795532,0.015151978,0.05328369,0.016281128,-0.026870728,-0.06561279,0.024642944,-0.051971436,-0.0046653748,0.022399902,-0.019851685,-0.0041542053,-0.012626648,-0.024734497,-0.024810791,-0.00010597706,-0.027557373,-0.002986908,0.018722534,-0.028793335,-0.03338623,-0.04244995,-0.017120361,-0.0059890747,0.0769043,0.021209717,0.00009590387,-0.06060791,-0.0039024353,0.012290955,0.009361267,0.01701355,-0.014694214,-0.0052871704,-0.012931824,-0.022232056,-0.014930725,-0.013015747,0.015686035,-0.014160156,-0.014129639,0.040161133,0.002960205,0.015853882,-0.007080078,0.022888184,0.022506714,-0.027954102,0.009544373,-0.01890564,0.042755127,-0.0013628006,-0.011482239,-0.053619385,0.05218506,0.007217407,0.029281616,-0.031585693,-0.000233531,0.0042152405,0.010070801,0.015457153,-0.010871887,-0.015464783,-0.010536194,-0.048736572,-0.072753906,0.042297363,-0.021469116,0.028335571,0.010536194,0.0109939575,0.019836426,-0.010986328,0.00091171265,0.02494812,-0.029907227,-0.011657715,-0.02406311,-0.033569336,-0.015350342,-0.01084137,-0.02468872,0.011878967,-0.018295288,0.013038635,-0.0020637512,-0.02130127,0.023864746,-0.008621216,-0.009170532,0.021591187,-0.01096344,0.01927185,0.047851562,0.0065460205,-0.037109375,0.03161621,-0.002204895,0.009689331,-0.017425537,0.043273926,0.035217285,-0.0008773804,-0.008155823,-0.005126953,-0.019470215,-0.024536133,0.0057792664,0.0044441223,0.019836426,0.0018978119,-0.0395813,0.026107788,0.0049972534,-0.029418945,-0.023971558,0.014984131,0.015113831,-0.029449463,0.022705078,0.03225708,0.056671143,-0.025909424,0.0064353943,0.008331299,0.02583313,0.031677246,0.014945984,-0.021072388,0.008735657,-0.011627197,0.016235352,0.005092621,-0.016525269,0.011741638,0.0022506714,0.02003479,0.025009155,0.015113831,-0.023712158,-0.029129028,-0.009811401,-0.0031719208,-0.014160156,0.010795593,0.023071289,0.030273438,-0.033233643,0.011138916,0.0119018555,-0.0357666,-0.01335144,-0.018051147,0.041137695,-0.004787445,-0.016036987,0.019546509,0.01272583,0.029052734,-0.06439209,-0.011238098,0.007637024,0.014785767,-0.031341553,-0.039367676,-0.03967285,0.0072898865,0.0385437,0.00945282,0.026763916,0.033569336,0.000087082386,-0.0022506714,0.029083252,0.0051879883,-0.019180298,-0.013961792,-0.03543091,-0.00041604042,-0.0014247894,-0.004173279,-0.022506714,0.008850098,-0.01789856,-0.027923584,0.0065841675,-0.0014038086,-0.0061416626,0.0020866394,0.009925842,0.034729004,-0.010177612,0.008934021,-0.020324707,-0.030197144,-0.0012969971,0.0076293945,0.013145447,-0.062805176,0.019989014,-0.016311646,-0.0060920715,-0.003232956,0.011062622,0.016601562,0.020599365,0.011619568,0.030075073,-0.052642822,0.03326416,-0.030593872,0.0040740967,0.020874023,-0.0357666,0.0051727295,-0.02734375,-0.021148682,0.03552246,-0.018295288,-0.010597229,-0.027160645,-0.036224365,-0.0138549805,-0.052581787,0.018981934,0.031066895,0.036468506,-0.034484863,-0.0016260147,0.0014648438,0.004886627,-0.015991211,0.009101868,-0.012710571,0.011795044,0.013999939,0.0022354126,-0.026901245,-0.017364502,-0.02293396,0.0076408386,-0.039001465,-0.04537964,-0.014640808,0.0043754578,0.00033903122,-0.007129669,-0.034576416,-0.02128601,0.0026435852,-0.043121338,0.012496948,0.011184692,0.02520752,-0.00035524368,-0.02204895,0.0064048767,0.011856079,-0.009544373,0.030853271,0.0062713623,-0.0043258667,-0.038391113,0.010307312,0.041259766,0.018356323,-0.004333496,-0.006942749,-0.016479492,-0.014785767,-0.053131104,-0.0088272095,-0.004020691,-0.004371643,-0.010765076,0.0016794205,-0.050231934,-0.0062217712,-0.018936157,-0.0022182465,0.021499634,0.012107849,0.0049705505,-0.0017585754,0.0068511963,-0.0028381348,-0.017150879,-0.026260376,0.018356323,0.010795593,-0.0014438629,0.016494751,0.048461914,0.014442444,-0.017608643,0.010269165,0.0012397766,0.025421143,-0.015640259,0.0012426376,-0.01713562,0.007850647,-0.022033691,-0.014907837,-0.042816162,-0.0069999695,0.08496094,-0.0012998581,-0.0040779114,-0.018539429,-0.018997192,0.017791748,0.024459839,-0.044281006,0.009460449,-0.036468506,0.023849487,-0.021652222,0.02331543,0.0103302,0.023880005,-0.020751953,-0.057891846,-0.020507812,-0.00033330917,-0.020980835,-0.06365967,-0.0066871643,-0.066833496,-0.006790161,-0.012382507,-0.017608643,0.001042366,0.011871338,-0.01687622,-0.08288574,-0.0023097992,0.04727173,0.0052223206,0.025985718,-0.013702393,0.017333984,0.018936157,-0.02758789,-0.016036987,0.035125732,-0.028259277,-0.009391785,-0.021865845,0.018630981,-0.008430481,-0.025772095,0.020446777,0.004760742,0.026321411,-0.014602661,0.00831604,-0.015556335,0.0065345764,-0.014312744,0.02178955,-0.012626648,-0.008102417,0.029708862,-0.048797607,0.020324707,0.020248413,-0.0010490417,0.010971069,0.027557373,0.032592773,-0.03829956,-0.019744873,0.0236969,0.0040016174,0.03665161,-0.022979736,0.043395996,0.017852783,-0.012664795,0.02784729,-0.006843567,-0.01826477,-0.040893555,-0.026870728,0.03036499,-0.008155823,0.021240234,-0.01335144,0.011772156,0.012573242,-0.003458023,0.0056037903,-0.014709473,-0.028518677,-0.0112838745,0.00039172173,0.0047912598,0.004005432,0.000644207,0.029129028,0.01725769,0.03652954,0.013023376,0.00038218498,0.00894165,0.020874023,-0.021606445,0.006225586,0.025741577,-0.00089788437,0.015625,0.01335144,0.0135650635,-0.048614502,-0.013290405,-0.028762817,-0.008743286,-0.0037288666,-0.014930725,-0.018203735,-0.010696411,0.0028133392,-0.002986908,-0.031829834,0.007888794,-0.03616333,-0.022140503,-0.010025024,-0.01448822,0.012817383,0.008453369,0.0072021484,0.0107040405,-0.0021800995,0.04486084,0.014129639,-0.0058403015,0.022537231,0.040527344,0.014381409,-0.029418945,0.00035309792,-0.0134887695,-0.0019025803,0.00057029724,-0.019119263,0.020507812,0.040283203,-0.011421204,0.011245728,-0.0003039837,0.029785156,-0.018173218,0.0074005127,-0.015701294,0.022613525,-0.0032367706,0.028793335,-0.04095459,0.0072021484,0.020736694,-0.0055999756,-0.0054512024,-0.004585266,-0.026184082,0.013618469,0.0035076141,-0.020584106,0.049682617,0.010421753,0.0284729,-0.03543091,-0.0035037994,-0.00008696318,-0.03152466,-0.022323608,0.024490356,0.01146698,0.0011148453,0.020202637,-0.037628174,0.03793335,-0.03427124,0.021133423,0.004627228,0.019165039,-0.011810303,-0.02027893,-0.014221191,-0.008773804,-0.016220093,0.0037326813,-0.0015230179,0.056121826,0.018737793,0.030914307,0.04977417,0.014724731,0.0060653687,-0.033203125,-0.026931763,-0.0024528503,-0.013977051,0.013145447,-0.014419556,0.051696777,0.040802002,-0.003955841,0.029205322,0.047027588,0.03503418,-0.00048589706,0.013069153,-0.010856628,0.011230469,-0.006290436,0.020492554,0.00223732,0.0418396,-0.025665283,0.028320312,0.013923645,0.032470703,-0.023956299,0.033935547,0.062408447,0.026672363,-0.012916565,0.031951904,-0.0016469955,-0.01121521,-0.014678955,-0.019607544,0.05102539,0.0023117065,0.054229736,0.05303955,0.016647339,-0.004245758,0.02607727,-0.029937744,-0.02218628,0.06561279,0.012641907,-0.013961792,-0.017242432,0.000107347965,0.004211426,-0.052368164,-0.019927979,0.015335083,-0.004562378,0.007472992,-0.000975132,-0.01109314,-0.015274048,0.00945282,0.02810669,0.015090942,-0.009925842,0.021499634,0.032409668,-0.0039482117,0.018722534,0.00004673004,0.029129028,-0.031204224,-0.021133423,0.021499634,0.01675415,-0.008117676,-0.009147644,0.020217896,0.012039185,0.057525635,0.044433594,-0.017166138,0.010375977,0.0345459,0.016586304,-0.007522583,0.05319214,0.034332275,0.010566711,0.03717041,0.037200928,0.026672363,-0.03845215,0.019729614,0.003194809,0.0062446594,-0.01876831,-0.016799927,0.010116577,-0.013130188,0.028060913,0.000029444695,-0.010559082,0.017425537,0.014274597,0.0012130737,-0.004749298,-0.006591797,0.016738892,-0.019729614,-0.0040016174,0.01171875,-0.017333984,0.03262329,0.0046424866,0.024429321,-0.03062439,0.023513794,0.000541687,-0.0154418945,-0.001627922,0.026519775,-0.040405273,-0.0009379387,-0.0074539185,-0.0031738281,-0.045959473,0.010536194,0.022766113,-0.012069702,0.027160645,0.007484436,0.0012617111,0.003627777,0.02532959,0.011199951,-0.0007185936,-0.005443573,-0.019622803,0.029632568,0.036895752,0.0025234222,0.011070251,-0.029281616,-0.006942749,0.008430481,-0.018661499,-0.0041503906,-0.015701294,-0.026901245,-0.030670166,0.008804321,0.03829956,0.023040771,0.031311035,-0.016830444,-0.015571594,0.0038661957,0.029022217,0.010444641,0.0009741783,-0.012741089,0.022384644,-0.014945984,0.05166626,0.035003662,0.013923645,0.025985718,-0.011405945,-0.020828247,0.006175995,-0.009185791,0.028366089,-0.017364502,0.004852295,-0.0042381287,0.030090332,-0.019897461,-0.033233643,0.0082092285,-0.014198303,-0.013656616,-0.024276733,0.01020813,0.007827759,0.024246216,0.04058838,0.016067505,-0.022949219,0.061340332,-0.023025513,0.03967285,-0.0090789795,-0.0053977966,0.054595947,0.025650024,0.035949707,0.028503418,0.016281128,-0.03668213,0.01171875,0.03552246,0.024963379,0.004081726,-0.005569458,-0.030044556,0.03793335,0.0010156631,0.027709961,-0.010795593,-0.00010496378,0.016967773,-0.011688232,0.0026779175,-0.0027198792,-0.011451721,0.005355835,0.046173096,-0.02909851,-0.0104599,-0.01979065,-0.012054443,0.025421143,-0.014343262,0.003686905,0.009506226,-0.023391724,0.007663727,-0.032287598,-0.019821167,-0.00054836273,0.03161621,-0.041870117,-0.0211792,-0.0020065308,0.009506226,-0.024917603,0.023986816,0.017700195,-0.0037231445,0.0066719055,0.03778076,-0.01727295,0.02722168,-0.016174316,0.029647827,0.03262329,0.00009286404,-0.020950317,0.012702942,0.015640259,-0.011161804,0.011199951,0.040283203,-0.012275696,0.005794525,-0.0070533752,-0.012634277,0.009361267,-0.0007753372,-0.0074539185,0.004962921,-0.010978699,-0.0140686035,-0.0005393028,0.0093307495,0.0018291473,0.012359619,-0.016601562,-0.011230469,0.011878967,0.042144775,0.022628784,-0.040527344,0.002872467,0.008277893,0.014801025,-0.023895264,-0.011253357,0.0024719238,-0.027694702,0.01890564,0.019088745,0.0027656555,0.003768921,-0.015602112,0.0018186569,0.03527832,0.013046265,0.023483276,0.00074625015,-0.0033893585,0.028762817,-0.01374054,-0.005657196,0.005596161,-0.009170532,0.0023288727,0.0118637085,-0.0000028014183,-0.026031494,0.026977539,0.0032997131,0.020690918,0.003074646,-0.01789856,0.014587402,-0.016418457,-0.022949219,0.011512756,0.01449585,-0.012413025,-0.019012451,-0.012413025,0.02659607,0.057250977,-0.02128601,-0.0043525696,0.021331787,0.0077781677,0.022018433,0.035827637,0.0022277832,0.048339844,0.028366089,-0.02192688,-0.02128601,0.018875122,-0.0048103333,-0.030960083,0.016296387,-0.010566711,-0.01864624,0.0045394897,0.012031555,-0.00566864,-0.025894165,-0.01890564,-0.010406494,-0.015975952,0.016647339,-0.016204834,0.011024475,-0.023773193,-0.006164551,0.003025055,-0.0059547424,-0.044677734,-0.02508545,-0.00207901,-0.009925842,-0.048858643,0.007850647,-0.03074646,0.006462097,-0.013374329,-0.00907135,-0.0033912659,0.027709961,-0.0109939575,-0.00422287,0.009864807,0.026107788,0.016021729,0.0039405823,0.03604126,-0.026123047,-0.028839111,-0.02003479,-0.008850098,-0.0154418945,0.027130127,-0.0025844574,0.03753662,0.017333984,-0.0013751984,-0.0075912476,-0.014526367,-0.0026893616,-0.005554199,-0.021270752,-0.012664795,0.02507019,0.007045746,-0.009254456,-0.008155823,0.038970947,-0.028289795,-0.0135650635,0.0209198,0.05279541,0.0076560974,0.034118652,-0.02470398,-0.0056877136,-0.014770508,0.00017380714,-0.022033691,0.013343811,0.010513306,0.00868988,-0.008377075,-0.000238657,0.025299072,-0.000320673,-0.01008606,0.027709961,-0.0032234192,-0.008705139,0.037017822,0.010322571,-0.00038909912,-0.011360168,-0.020141602,0.02279663,0.032165527,0.016342163,0.008239746,-0.0042915344,0.01928711,-0.019348145,0.0105896,0.019744873,-0.021011353,-0.03967285,-0.0184021,-0.038238525,0.019760132,0.005218506,0.015167236,-0.009391785,0.018112183,-0.025466919,-0.027893066,-0.024597168,0.0184021,0.0077552795,-0.008224487,-0.009231567,0.0025024414,0.020507812,-0.033447266,0.0023517609,-0.044311523,-0.036102295,-0.009140015,-0.018081665,0.01889038,0.010185242,-0.009773254,0.0018596649,-0.0039024353,0.001613617,0.004589081,0.030807495,-0.008110046,-0.001039505,0.017745972,0.0131073,-0.019882202,0.0057868958,-0.0104522705,0.0027503967,0.021957397,-0.010147095,0.012588501,-0.013946533,0.029907227,-0.0052108765,-0.0037193298,0.02760315,-0.0008163452,0.016845703,-0.030090332,0.0051193237,0.0042419434,-0.0061035156,0.037231445,-0.028701782,-0.0115356445,0.010322571,-0.023620605,-0.02935791,0.004634857,0.018173218,0.040527344,-0.0062294006,0.041870117,-0.015274048,-0.009742737,0.023727417,-0.00024008751,-0.017059326,-0.0039863586,0.047058105,0.0017766953,-0.0016412735,-0.00077056885,-0.010559082,-0.027236938,-0.008018494,0.01574707,-0.004825592,-0.012687683,0.016418457,0.0084991455,0.037628174,-0.0055236816,0.019332886,0.014167786,0.007545471,0.021133423,0.009735107,0.0473938,0.0052261353,-0.022872925,0.0154418945,0.0060920715,-0.02545166,-0.005836487,-0.0033893585,0.010375977,-0.042633057,0.0206604,-0.0010185242,0.03466797,-0.026535034,0.015045166,-0.025375366,-0.00894165,-0.03778076,-0.00687027,-0.038238525,0.019744873,0.0385437,0.004398346,0.023742676,0.008522034,-0.023971558,0.016555786,0.045959473,-0.00440979,-0.022598267,-0.010955811,0.018707275,0.0007352829,0.009544373,0.007209778,-0.016098022,-0.027160645,0.0048065186,-0.013267517,0.0041885376,-0.008598328,0.018722534,0.009849548,-0.007926941,-0.0044288635,0.021881104,-0.0005431175,-0.0005130768,0.0036506653,0.016281128,0.031799316,0.034973145,-0.0059013367,0.03427124,0.013153076,-0.045013428,0.058624268,-0.0059165955,0.030548096,-0.025772095,-0.009735107,-0.032043457,-0.020095825,-0.014953613,0.0029525757],"createdAt":"2026-04-18T18:39:35.414Z","updatedAt":"2026-04-22T18:31:05.978Z","lastSeenAt":"2026-04-22T18:31:05.978Z","tsv":"'/api/v1/accounts/39':47,206 '/request':13,28 '0.02':12,27,76,133 '0x8335':116 '20000':128 '2913':117 '6':136 'Base network API' 'USDC micropayment API' 'accept':104 'access':7,22,38,215 'accounts endpoint' 'actual':235 'advertis':140 'ai':63 'analysi':149 'analyt':62 'api':6,21,37,88,176,214 'awar':230 'base':9,24,84,119,129 'behavior':236 'broad':142 'call':4,19 'categori':59 'chain':112 'challeng':97 'clarifi':221 'classif':152 'commit':93 'confirm':98 'connect':185 'content':191 'contract':115 'correspond':131 'cover':147 'crypto-paid API' 'data':61 'decim':137 'descript':202 'doc':175 'document':170,233 'embed':153 'endpoint':32,52,72,100,146,207,223,240 'exact':122 'exampl':199 'exchang':156 'extrem':172 'feed':155 'financ':66 'function':225 'generic':217 'geocod':158 'includ':60 'infrastructur':69 'json-response' 'key':89 'learn':65 'limit':91 'list':211 'live':102 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':64 'mani':51 'maxamountrequir':126 'network':85 'no-api-key' 'offer':53 'on-chain':110 'one':49 'openapi':195 'page':180 'paid':79 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payment':42,107,123 'per':3,18,77,167 'per-request':166 'platform':56,139 'post':105 'post-method' 'premium':5,20,36,213 'price':74,154,169,177 'prompt':187 'prospect':226 'protocol':43 'provid':35 'rate':90,157 'readm':179 'render':182 'request':78,106,168 'request/response':198 'requir':94 'resourc':46 'return':209 'schema':196 'scheme':124 'sentiment':148 'settl':109 'sibl':145 'span':58 'spars':173 'specif':45,208,239 'substant':190 'suit':143 'summar':151 'text':150 'titl':212 'unit':130 'unknown':242 'usdc':15,30,81,114,134 'usdc-base' 'use':113,135 'user':227 'util':70 'valid':159 'via':10,25,39 'wallet':186 'web3':67 'without':232 'x402':11,26,41,96 'x402 API' 'x402-payment'","prices":[{"id":"adf0cfae-18a3-4dee-a526-ac937d550a9f","listingId":"107cacb2-8dd0-418d-8895-9b8273bcbe06","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/39","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:35.414Z"}],"sources":[{"listingId":"107cacb2-8dd0-418d-8895-9b8273bcbe06","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/39","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:35.414Z","lastSeenAt":"2026-04-22T18:31:05.978Z"}],"details":{"listingId":"107cacb2-8dd0-418d-8895-9b8273bcbe06","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/39 \\\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":"Endpoint returns 402 with x402 challenge, maxAmountRequired 20000 in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/39"},{"claim":"All endpoints priced at $0.02/request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/39"},{"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 API key management","On-chain pay-as-you-go access to utility or data endpoints"],"bestFor":["Developers wanting keyless, pay-per-use API access","AI agents with x402-compatible payment capabilities","Users who prefer on-chain USDC settlement on Base"],"notFor":["Users who need detailed API documentation before integrating","Applications requiring free or subscription-based access","Users without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:38.459Z"},"updatedAt":"2026-04-22T18:31:05.978Z"}}