{"id":"8fde4b3c-ef14-4d84-a7fc-135cd4b3a507","shortId":"YmUZCa","kind":"x402","title":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.","tagline":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol on the Base network. The specific endpoint `/api/v1/accounts/136` is one of many offered by the provider, which hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation).\n\nThe endpoint accepts HTTP POST requests and returns JSON. Payment is settled in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on the Base L2 network using the x402 \"exact\" scheme. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. There are no API keys, no rate limits, and no minimum commitments — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe specific functionality behind `/api/v1/accounts/136` is not documented beyond the label \"Premium API Access.\" The provider's landing page lists many other endpoints at $0.02 each, but the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no additional technical documentation. Without further details on request/response schemas or what data this particular accounts endpoint returns, callers should treat this as a minimally documented endpoint.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","json-response","http-post"],"categories":["api-gateway","payments"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","premium API access","crypto-paid API"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","The specific functionality of /api/v1/accounts/136 ('Premium API Access') is undocumented; unclear what data it returns","No OpenAPI spec, no request/response schema, no example payloads available","Provider hosts many endpoints but none have publicly visible technical docs"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/136","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/136","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 captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation of request parameters, response schema, or what 'Premium API Access' at /api/v1/accounts/136 actually returns. All doc pages render only 'Connect wallet' with no technical 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":"2026-04-19T01:18:20.149Z","embedding":[-0.021392822,-0.018081665,0.047821045,0.023361206,0.016189575,-0.03692627,-0.023086548,0.03842163,0.06573486,-0.09375,0.033966064,-0.032196045,-0.0357666,-0.04272461,-0.031341553,0.008560181,-0.021636963,0.009521484,-0.050079346,0.037719727,0.027130127,-0.0069351196,-0.010955811,0.03881836,-0.0048065186,-0.030914307,-0.008140564,-0.033813477,-0.00932312,-0.058776855,0.033569336,-0.020629883,-0.0049934387,0.025253296,-0.010055542,-0.029632568,0.001077652,0.047302246,0.03955078,-0.0041160583,0.011054993,-0.043182373,-0.011184692,0.016830444,-0.0680542,0.003353119,0.0042495728,-0.033111572,-0.026901245,0.023895264,-0.024368286,-0.01210022,-0.010879517,-0.003326416,0.014465332,0.023834229,-0.0017900467,-0.013092041,0.009223938,0.006126404,-0.0020313263,-0.059417725,-0.022842407,-0.00026535988,0.0066337585,0.051330566,-0.0020713806,0.048553467,0.015045166,0.059051514,0.036132812,0.051513672,0.0335083,0.007698059,0.0023651123,-0.0053710938,0.008865356,0.059265137,0.0006341934,-0.013664246,-0.0209198,-0.0006518364,-0.035125732,0.004928589,-0.020629883,-0.057647705,-0.011985779,0.004547119,-0.021026611,0.034729004,-0.06317139,-0.005542755,-0.008468628,0.01687622,-0.0003437996,0.005466461,-0.02557373,0.005683899,-0.0093307495,0.017364502,0.012870789,-0.020828247,0.025772095,0.016998291,0.057800293,0.0446167,0.011405945,0.031280518,0.005973816,-0.004386902,-0.023895264,0.00944519,0.006652832,-0.010787964,0.0124435425,0.019088745,-0.032348633,0.025802612,-0.0259552,0.019210815,-0.053955078,0.03967285,0.045043945,-0.027816772,0.02746582,-0.05050659,-0.017547607,0.0070152283,-0.017318726,-0.012710571,0.022399902,0.010467529,0.038146973,-0.023117065,-0.021102905,0.026611328,-0.0134887695,-0.029556274,-0.057403564,-0.024017334,0.034942627,-0.020477295,0.042633057,0.02268982,-0.0904541,-0.009681702,-0.049560547,-0.0028324127,-0.039093018,0.006046295,-0.0154953,0.022735596,-0.016418457,-0.0065231323,-0.02293396,-0.011810303,-0.00040197372,0.03729248,-0.012145996,0.056121826,-0.0047416687,0.030731201,0.043060303,0.0077819824,0.023468018,0.052215576,-0.010772705,-0.073913574,-0.092041016,-0.024749756,-0.0060806274,-0.0054359436,-0.025634766,0.0029525757,-0.0088272095,-0.090148926,-0.025360107,-0.00008261204,-0.017959595,-0.027999878,-0.010055542,-0.024108887,0.00573349,-0.0067253113,-0.066711426,-0.0151901245,-0.028137207,0.068725586,0.02015686,-0.011245728,0.033172607,-0.0079574585,0.05041504,0.013145447,-0.020553589,-0.037597656,0.014968872,-0.00687027,0.0076904297,-0.0045051575,0.008613586,-0.041900635,0.036071777,0.05307007,0.006275177,-0.0059928894,0.007965088,-0.047546387,-0.034362793,-0.032165527,0.011459351,0.011650085,-0.0039901733,0.029724121,-0.03326416,-0.031921387,0.004272461,0.00945282,0.030166626,0.06762695,-0.009155273,-0.011199951,-0.0028648376,0.026382446,-0.046783447,0.038726807,0.037078857,0.024612427,-0.031143188,-0.020767212,0.010879517,0.0390625,-0.02545166,0.013175964,-0.016723633,0.026107788,-0.0016307831,0.018295288,0.032165527,-0.014411926,-0.025558472,-0.0385437,-0.014205933,0.031463623,0.01864624,-0.017578125,-0.037994385,-0.09588623,0.03564453,0.05419922,0.017913818,0.00021338463,-0.013587952,-0.04638672,-0.020492554,-0.061584473,0.048675537,0.08453369,-0.0129776,-0.020767212,0.026245117,-0.011627197,-0.035888672,-0.007785797,-0.0034885406,-0.021362305,-0.020187378,0.004814148,-0.045318604,0.018936157,0.000992775,0.029388428,0.062042236,-0.012130737,-0.047302246,-0.023666382,0.013870239,-0.012359619,-0.027236938,-0.0065345764,0.00093221664,-0.000027954578,0.04296875,-0.0056495667,0.019378662,-0.005756378,0.014427185,0.00011110306,-0.00869751,-0.018814087,-0.025421143,0.006706238,0.008338928,-0.06628418,0.008857727,0.0043640137,0.05682373,-0.031829834,0.026687622,-0.010536194,0.013755798,0.056152344,-0.0047569275,-0.035949707,0.014633179,0.033325195,0.029724121,0.028182983,0.025344849,-0.018554688,0.0066604614,0.055389404,-0.02633667,-0.0065727234,0.009887695,0.021255493,0.030349731,0.002773285,-0.06738281,-0.032592773,-0.016693115,-0.02154541,0.0046920776,-0.049865723,0.036254883,-0.00932312,0.017242432,-0.026412964,0.004131317,-0.041931152,0.024353027,-0.018157959,-0.0034809113,0.00046014786,-0.005619049,0.017623901,0.01676941,-0.015602112,-0.014778137,0.037994385,0.019546509,0.0031337738,-0.020217896,-0.025543213,-0.015457153,0.015327454,0.026824951,0.041503906,0.015533447,0.041229248,-0.027252197,0.025863647,0.0032234192,0.008308411,0.049072266,-0.009216309,0.02178955,-0.058013916,-0.042663574,-0.012313843,-0.040985107,0.02178955,0.012023926,0.0024642944,0.050964355,-0.012481689,-0.028961182,-0.03451538,0.024673462,-0.035369873,0.012008667,0.04901123,-0.018432617,-0.02029419,-0.0073623657,-0.003648758,0.013954163,0.03378296,0.014762878,0.007019043,0.08215332,0.053497314,0.01461792,0.016555786,0.008766174,0.024856567,-0.011291504,-0.011550903,-0.018051147,-0.002319336,0.02897644,-0.008003235,-0.022109985,-0.07220459,0.043121338,0.035339355,0.07122803,0.0149002075,-0.0034561157,0.03579712,-0.020996094,0.022491455,-0.028182983,-0.039764404,-0.020126343,-0.027770996,0.010505676,0.0009050369,0.0038166046,-0.02444458,0.033813477,0.0057907104,0.024139404,-0.025115967,0.06707764,0.0021305084,-0.0071754456,0.015457153,0.0052261353,0.03086853,0.049102783,-0.03213501,0.028137207,0.017181396,-0.04525757,-0.0028934479,0.036621094,0.003545761,-0.02519226,-0.053009033,-0.027511597,0.0115356445,-0.008911133,-0.060333252,-0.016021729,-0.0036945343,0.02784729,0.027877808,-0.0206604,-0.012535095,-0.004562378,-0.002401352,-0.058288574,-0.022369385,-0.03375244,-0.0039787292,0.03729248,-0.032470703,-0.0109939575,0.020828247,0.009902954,-0.0072784424,0.0121536255,-0.008117676,0.0017957687,-0.059265137,0.025619507,0.012931824,0.008415222,0.013305664,0.033172607,0.013656616,0.0071105957,0.042541504,0.0154953,-0.020233154,-0.051361084,0.019607544,-0.056518555,-0.0040512085,0.018707275,-0.009567261,-0.010536194,-0.012367249,-0.031707764,-0.029418945,-0.0036678314,-0.036865234,0.0054092407,0.021697998,-0.039733887,-0.016830444,-0.060943604,-0.026763916,0.0055503845,0.070373535,0.030273438,-0.00008916855,-0.047973633,-0.022155762,0.00856781,0.020553589,0.0058784485,-0.014389038,-0.009567261,-0.007904053,-0.017486572,-0.028625488,-0.020523071,0.0158844,-0.0037326813,-0.018035889,0.031219482,-0.002483368,0.007663727,-0.012298584,0.0026245117,0.01461792,-0.04058838,0.004016876,-0.018066406,0.019256592,-0.014465332,-0.013511658,-0.050445557,0.044555664,-0.0036296844,0.045288086,-0.038513184,-0.004447937,0.0049057007,0.014160156,0.020050049,-0.014915466,-0.015365601,0.0026016235,-0.046905518,-0.08068848,0.043060303,-0.01789856,0.023071289,0.008163452,-0.0005726814,0.029968262,-0.008644104,0.0079422,0.027236938,-0.027511597,-0.016662598,-0.026016235,-0.036712646,-0.02079773,0.0004720688,-0.0036125183,0.007873535,-0.02418518,0.023361206,-0.007007599,-0.026794434,0.032165527,0.009033203,-0.014778137,0.027877808,0.0011882782,0.0065956116,0.053649902,0.007785797,-0.012481689,0.02015686,-0.0102005005,0.006061554,-0.0141067505,0.050201416,0.02859497,-0.020645142,0.0003914833,-0.00289917,-0.0058021545,-0.028671265,-0.0149002075,0.00002348423,0.034606934,0.0036525726,-0.04324341,0.020751953,0.013320923,-0.03604126,-0.0030879974,0.0055122375,0.009735107,-0.03274536,0.031204224,0.019439697,0.057800293,-0.019348145,-0.00017726421,0.0042266846,0.028564453,0.01890564,0.0054397583,-0.020751953,0.008010864,-0.032440186,0.01008606,0.0020389557,0.0027427673,0.011756897,0.005634308,0.018920898,0.031066895,0.023605347,-0.02204895,-0.02848816,-0.0013494492,0.005004883,-0.018844604,0.0140686035,0.02027893,0.016281128,-0.023239136,0.024810791,0.017593384,-0.03250122,-0.012458801,-0.018173218,0.053741455,-0.015670776,-0.020889282,0.013061523,0.022125244,0.04437256,-0.05496216,-0.011299133,0.018341064,0.021026611,-0.017791748,-0.046173096,-0.034484863,-0.013305664,0.024627686,-0.01197052,0.016036987,0.043640137,0.0014572144,0.00053691864,0.013702393,0.009819031,-0.01687622,-0.020019531,-0.051513672,-0.0041122437,-0.0009794235,-0.0019435883,-0.02558899,0.011802673,-0.018753052,-0.022140503,-0.0077209473,-0.009902954,-0.003074646,-0.003578186,0.0060424805,0.028900146,-0.009429932,0.01586914,-0.026611328,-0.026565552,0.00031638145,0.017456055,0.017532349,-0.03652954,0.03375244,-0.012916565,-0.009597778,-0.0073890686,0.016403198,0.007587433,0.022018433,0.007457733,0.03250122,-0.04647827,0.034973145,-0.03878784,0.0043907166,-0.0028438568,-0.03552246,0.00082302094,-0.03201294,-0.018859863,0.04748535,0.004447937,0.0016336441,-0.018371582,-0.026000977,-0.0035095215,-0.046844482,0.0068588257,0.028137207,0.038269043,-0.030548096,-0.0011739731,0.0129470825,0.0039787292,-0.0184021,0.001578331,-0.016967773,-0.005508423,0.027252197,-0.004928589,-0.021118164,-0.026992798,-0.018569946,-0.0057754517,-0.055480957,-0.049468994,-0.016540527,0.0045280457,-0.0068206787,-0.00907135,-0.029083252,-0.019805908,0.0033740997,-0.034332275,-0.002784729,0.0015678406,0.026565552,0.018676758,-0.015991211,0.0034255981,0.026535034,-0.028808594,0.03564453,0.010696411,0.004360199,-0.028060913,-0.008308411,0.045532227,0.001493454,0.0018825531,-0.0096588135,-0.0079193115,-0.016983032,-0.053894043,-0.005306244,-0.01436615,0.00579834,-0.01461792,-0.009719849,-0.051361084,-0.010276794,-0.019226074,-0.010986328,0.016571045,0.022506714,0.016738892,0.0022010803,0.012008667,-0.015022278,-0.019866943,-0.038238525,0.019989014,0.01007843,-0.002691269,0.006793976,0.036468506,0.014427185,-0.016906738,-0.0010128021,0.008117676,0.023666382,-0.019927979,-0.010726929,-0.017227173,0.0154418945,-0.022460938,-0.020599365,-0.04953003,-0.0009889603,0.06854248,-0.01272583,-0.011474609,-0.013206482,-0.0026741028,0.014778137,0.027069092,-0.051208496,-0.007019043,-0.03250122,0.022369385,-0.019744873,0.021408081,0.013511658,0.023468018,-0.010093689,-0.05041504,-0.015045166,0.013908386,-0.021865845,-0.05508423,-0.008399963,-0.054107666,-0.008369446,-0.012237549,-0.0069999695,-0.007286072,0.008651733,-0.00970459,-0.08123779,0.014503479,0.04586792,0.016159058,0.013000488,-0.019866943,0.014579773,0.017623901,-0.03314209,-0.03540039,0.020080566,-0.019836426,-0.014526367,-0.03237915,0.02998352,-0.020065308,-0.01701355,0.039154053,-0.0014915466,0.031829834,-0.00944519,0.005104065,-0.020126343,-0.005672455,-0.007045746,0.020629883,0.0043029785,-0.016830444,0.03463745,-0.03942871,0.015731812,0.017105103,0.012588501,-0.0090789795,0.022460938,0.03564453,-0.04727173,-0.0042152405,0.036010742,0.017623901,0.03024292,-0.039764404,0.035827637,0.018981934,-0.01776123,0.032714844,-0.021102905,-0.022766113,-0.046173096,-0.03375244,0.03250122,0.00039219856,0.031204224,-0.0027637482,0.0041656494,0.018310547,-0.0035419464,0.0030994415,-0.023208618,-0.022216797,-0.008598328,-0.005710602,0.0014448166,0.0026798248,0.0013790131,0.026824951,0.014595032,0.035888672,0.006038666,0.00074005127,0.01739502,0.0181427,-0.021987915,0.004299164,0.025772095,0.0037841797,0.0044517517,0.011146545,0.007205963,-0.05215454,-0.025619507,-0.017074585,-0.012588501,0.0064811707,-0.016235352,-0.016906738,-0.006134033,0.013908386,0.006099701,-0.03366089,0.011161804,-0.028701782,-0.02368164,-0.010055542,-0.004814148,0.0005311966,-0.0027980804,0.0012350082,0.016708374,-0.00073719025,0.055145264,0.0043029785,-0.005191803,0.02130127,0.047698975,0.0075683594,-0.027664185,0.0011024475,-0.005706787,-0.009895325,0.0019435883,-0.020706177,0.018814087,0.034240723,-0.02217102,0.014930725,-0.011993408,0.029312134,0.0007376671,0.026412964,-0.007129669,0.011016846,-0.014595032,0.037841797,-0.025634766,-0.00970459,0.022323608,0.001707077,-0.014930725,-0.008163452,-0.038024902,0.014038086,0.004676819,-0.020309448,0.040618896,0.004753113,0.030059814,-0.030471802,-0.010444641,0.009361267,-0.022094727,-0.019958496,0.030578613,-0.005756378,-0.017974854,0.011726379,-0.023086548,0.03942871,-0.028335571,0.006034851,0.0062065125,-0.00459671,-0.016433716,-0.02218628,-0.019622803,-0.00010204315,-0.02029419,-0.001707077,-0.0036201477,0.047302246,0.043701172,0.027053833,0.03793335,0.011672974,0.006679535,-0.038146973,-0.032073975,0.009094238,-0.030838013,0.007083893,-0.02104187,0.04537964,0.039093018,0.0063667297,0.030456543,0.0345459,0.033966064,-0.00088214874,0.0029621124,-0.020828247,0.02053833,-0.015068054,0.02748108,0.008125305,0.053131104,-0.026916504,0.014518738,0.007663727,0.022979736,-0.042297363,0.034210205,0.06890869,0.03427124,-0.00074005127,0.035888672,0.006034851,-0.0014657974,-0.01751709,-0.020812988,0.059143066,0.017944336,0.042816162,0.044128418,0.012283325,-0.010475159,0.03302002,-0.028396606,-0.040649414,0.05441284,0.011619568,-0.013420105,-0.014892578,-0.011154175,0.0069503784,-0.05960083,-0.024230957,0.019485474,0.00818634,0.009902954,-0.0070724487,-0.002521515,-0.01474762,0.011810303,0.026947021,0.0036849976,-0.014350891,0.012306213,0.018630981,-0.0013618469,0.015136719,0.0079193115,0.027954102,-0.03375244,-0.02229309,0.019546509,0.017242432,-0.009521484,-0.005504608,0.02243042,0.015106201,0.04812622,0.045776367,-0.024276733,-0.002866745,0.03250122,0.02041626,-0.0051231384,0.038604736,0.03390503,0.0146102905,0.042419434,0.03677368,0.027954102,-0.03540039,0.00995636,0.0006580353,0.0026817322,-0.013114929,-0.016281128,0.0033836365,-0.008842468,0.03173828,0.0026836395,-0.006801605,0.023910522,0.017730713,-0.0010986328,0.012962341,-0.0064086914,0.011413574,-0.0008125305,0.010299683,0.014892578,-0.02609253,0.0184021,0.00630188,0.027435303,-0.022232056,0.020095825,0.019180298,-0.02432251,0.0005578995,0.009033203,-0.036132812,0.00031590462,0.00022542477,-0.004600525,-0.03829956,0.020462036,0.020202637,-0.010353088,0.03866577,0.0054244995,0.0024585724,0.0059051514,0.019638062,0.011581421,-0.017242432,-0.017288208,-0.026031494,0.02923584,0.042907715,-0.0041122437,0.013717651,-0.014541626,-0.0036296844,0.009819031,-0.014183044,-0.0061912537,-0.012687683,-0.013450623,-0.042785645,0.006504059,0.036834717,0.015151978,0.026657104,-0.012336731,-0.02444458,-0.004261017,0.0362854,0.015914917,0.0038490295,-0.030914307,0.03439331,-0.014854431,0.049804688,0.039001465,0.0022220612,0.021911621,-0.025238037,-0.01171875,0.004623413,-0.00737381,0.02029419,-0.025772095,0.02041626,-0.012130737,0.028701782,-0.0154800415,-0.039916992,0.011711121,-0.015563965,-0.006160736,-0.022827148,0.015403748,0.0110321045,0.024353027,0.036468506,0.016921997,-0.016998291,0.0625,-0.013824463,0.04837036,-0.008575439,-0.01108551,0.05545044,0.046539307,0.028778076,0.028152466,0.019577026,-0.0234375,0.006526947,0.03869629,0.027252197,0.012229919,-0.0020561218,-0.013244629,0.02822876,-0.00027179718,0.030303955,-0.0052337646,0.0056533813,0.011001587,-0.012878418,-0.008651733,0.0053901672,-0.01197052,0.017745972,0.050811768,-0.04067993,-0.010986328,-0.02671814,-0.006729126,0.023361206,-0.012901306,0.011260986,0.005508423,-0.031341553,0.0049591064,-0.013038635,-0.011497498,0.00258255,0.021957397,-0.033416748,-0.012771606,-0.008842468,0.021057129,-0.028320312,0.01638794,0.034423828,-0.0034561157,0.012863159,0.03866577,-0.0035076141,0.036010742,-0.011550903,0.03878784,0.035461426,0.016738892,-0.015991211,0.009773254,0.02053833,-0.013694763,0.003921509,0.038146973,-0.020065308,0.013305664,0.006149292,-0.0072402954,-0.009895325,0.010482788,-0.008659363,-0.01109314,-0.017868042,-0.008682251,0.0018663406,0.0031738281,0.00932312,-0.0072898865,-0.0035037994,-0.014984131,0.013900757,0.03857422,0.015289307,-0.046295166,-0.011192322,0.021896362,0.020690918,-0.010803223,-0.019683838,-0.015235901,-0.027954102,0.018478394,0.015060425,0.0046691895,0.0053215027,-0.02810669,0.0072021484,0.036865234,0.010848999,0.020980835,0.008911133,0.0048828125,0.021316528,-0.014274597,-0.014762878,-0.00705719,0.0056495667,0.014335632,0.016220093,-0.021316528,-0.012420654,0.023483276,0.003982544,0.017089844,0.002588272,-0.011436462,0.021881104,-0.011428833,-0.013008118,0.003967285,0.014389038,-0.018005371,-0.018325806,-0.018234253,0.018127441,0.043304443,-0.017562866,-0.0048332214,-0.012008667,0.012542725,0.031982422,0.031677246,0.012672424,0.03845215,0.021820068,-0.00957489,-0.020874023,0.017089844,-0.011634827,-0.0362854,0.021850586,-0.01574707,-0.025405884,0.012641907,0.0131073,-0.012931824,-0.008163452,-0.015174866,-0.0016918182,-0.016082764,0.03265381,-0.027328491,0.014297485,-0.020309448,-0.007369995,0.018875122,-0.0064468384,-0.036376953,-0.027664185,-0.00046944618,-0.021606445,-0.04916382,0.01776123,-0.024597168,0.014671326,-0.005722046,-0.0054626465,-0.0027770996,0.031341553,0.003993988,-0.003917694,0.008392334,0.034423828,-0.001953125,0.015365601,0.03869629,-0.013717651,-0.032836914,-0.022109985,-0.014656067,-0.011230469,0.008613586,-0.018585205,0.033935547,0.0005130768,-0.0071868896,-0.0098724365,-0.0075950623,-0.0039749146,0.0062026978,-0.019012451,-0.014778137,0.0066986084,0.03164673,0.0017147064,0.0121154785,0.04623413,-0.00920105,-0.024597168,0.03253174,0.054656982,0.003145218,0.052764893,-0.023117065,-0.006462097,-0.006526947,0.008621216,-0.017074585,0.018234253,0.01525116,0.005531311,-0.0038414001,0.0031833649,0.015571594,-0.016738892,-0.010894775,0.0112838745,0.008743286,-0.018218994,0.05041504,0.016998291,-0.0023784637,-0.012832642,-0.02911377,0.013038635,0.035217285,0.02923584,0.00856781,-0.009361267,0.01285553,-0.01574707,0.014595032,0.018035889,-0.018875122,-0.036621094,-0.00932312,-0.029312134,0.020217896,0.00422287,0.0256958,-0.0019083023,0.007369995,-0.025405884,-0.010322571,-0.019714355,0.027816772,0.005874634,-0.008895874,-0.001502037,0.0062942505,0.029678345,-0.017730713,-0.0044822693,-0.049468994,-0.024978638,-0.0031700134,-0.015106201,0.014335632,0.007865906,0.0047073364,0.014709473,-0.008834839,0.00031876564,-0.0022773743,0.02456665,-0.015098572,-0.009925842,0.017547607,-0.005367279,-0.022857666,0.009063721,0.0067100525,-0.00843811,0.013320923,-0.0010261536,0.013786316,-0.022705078,0.034698486,0.0018472672,-0.0051956177,0.034240723,0.005355835,0.00033974648,-0.022537231,0.005191803,0.00920105,0.002986908,0.041412354,-0.013832092,-0.029418945,0.00283432,-0.025390625,-0.028900146,0.016830444,0.021850586,0.036712646,-0.02319336,0.046539307,-0.016220093,-0.011299133,0.014724731,0.009437561,-0.012390137,-0.008544922,0.039916992,0.002708435,0.0065956116,-0.0005707741,-0.007881165,-0.04309082,-0.011802673,0.015548706,-0.008140564,-0.016998291,-0.0018730164,0.0126953125,0.03302002,-0.006626129,0.022277832,0.033477783,0.015060425,0.023666382,0.01184845,0.048095703,0.006793976,-0.018066406,0.0088272095,0.011810303,-0.01461792,-0.0063476562,-0.009414673,0.016433716,-0.03793335,-0.003419876,-0.00022625923,0.046203613,-0.02406311,0.0043296814,-0.024749756,-0.020965576,-0.040527344,-0.011253357,-0.038604736,0.014862061,0.035125732,0.0073890686,0.010948181,0.013420105,-0.028625488,0.020889282,0.046447754,-0.0042800903,-0.027816772,-0.0077552795,0.018371582,0.0075531006,-0.008911133,0.010673523,-0.019500732,-0.01763916,-0.0027923584,-0.0050468445,0.0012683868,-0.004535675,0.0129852295,0.0044136047,-0.009231567,0.00052165985,0.035369873,0.0012540817,-0.014694214,-0.0034236908,0.007270813,0.04498291,0.048675537,-0.0038547516,0.03366089,0.020629883,-0.028808594,0.054473877,-0.007522583,0.01838684,-0.028152466,-0.0034332275,-0.025787354,-0.011207581,0.009735107,0.01033783],"createdAt":"2026-04-18T18:41:00.594Z","updatedAt":"2026-04-24T09:03:20.092Z","lastSeenAt":"2026-04-24T09:03:20.092Z","tsv":"'/api/v1/accounts/136':59,183 '0.02':10,29,151,203 '000':142 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':123 '20':141 '6':147 'Base network API' 'USDC micropayment API' 'accept':110 'access':6,25,46,192 'account':236 'addit':222 'ai':82 'amount':136 'analysi':86 'analyt':81 'api':5,24,45,78,156,191,209 'attach':167 'base':8,27,54,126,143 'base-network' 'behind':182 'beyond':187 'broad':71 'call':77,139 'caller':165,239 'catalog':72 'classif':89 'commit':164 'connect':217 'contract':122 'convers':106 'crypto-paid API' 'data':80,233 'decim':148 'detail':227 'doc':207 'document':186,224,246 'embed':90 'endpoint':40,58,109,201,237,247 'equal':150 'estim':100 'exact':132 'exchang':95 'feed':94 'financ':91 'function':181 'gas':99 'gate':3,22 'generat':107 'geocod':104 'header':172 'host':69 'http':111 'http-post' 'infrastructur':102 'json':116 'json-response' 'key':16,35,157 'l2':127 'label':189 'land':196 'learn':84 'limit':19,38,160 'list':198 'lowpaymentfee' 'lowpaymentfee.com':42 'machin':83 'mani':63,199 'maximum':135 'minim':245 'minimum':163 'network':55,128 'no-api-key' 'offer':64 'one':61 'page':197,212 'particular':235 'pay':9,28,75 'pay-per-cal':74 'pay-per-call API' 'pay-per-request' 'payment':50,117,171,177 'per':11,30,76,138 'post':112 'premium':4,23,44,190 'premium API access' 'price':93,208 'prompt':219 'proof':178 'protocol':51 'provid':43,67,194 'quot':98 'rate':18,37,96,159 'readm':211 'render':214 'request':12,31,113 'request/response':229 'requir':137 'return':115,238 'schema':230 'scheme':133 'sentiment':85 'settl':119 'simpli':166 'span':79 'specif':57,180 'summar':88 'technic':223 'text':87 'token':97 'treat':241 'unit':144 'usd':152 'usdc':14,33,121,146 'usdc-settlement' 'use':129 'util':103 'valid':105,175 'via':47 'wallet':218 'web3':92 'without':225 'x':170 'x-payment':169 'x402':2,21,49,131,176 'x402 API' 'x402-gated':1,20 'x402-payment'","prices":[{"id":"9234ebde-b1b9-4268-890c-18973f3c0a5d","listingId":"8fde4b3c-ef14-4d84-a7fc-135cd4b3a507","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/136","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:41:00.594Z"}],"sources":[{"listingId":"8fde4b3c-ef14-4d84-a7fc-135cd4b3a507","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/136","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:41:00.594Z","lastSeenAt":"2026-04-24T09:03:20.092Z"}],"details":{"listingId":"8fde4b3c-ef14-4d84-a7fc-135cd4b3a507","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/136 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network, requiring 20000 base units of USDC","source_url":"https://lowpaymentfee.com/api/v1/accounts/136"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/accounts/136"},{"claim":"Provider advertises $0.02/request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Provider offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to premium data or account information at $0.02 per call","Agent-driven API consumption without pre-registration or API key management","Demonstrating x402 payment protocol integration on Base"],"bestFor":["Developers experimenting with x402 payment-gated APIs","AI agents that need keyless, pay-per-use API access","Low-cost micropayment API consumption on Base L2"],"notFor":["Users who need detailed API documentation or guaranteed SLAs","High-volume batch processing where per-request fees add up without volume discounts","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:34.478Z"},"updatedAt":"2026-04-24T09:03:20.092Z"}}