{"id":"45464e2c-393a-482d-b01a-3998c1942614","shortId":"g4tUB8","kind":"x402","title":"x402-gated premium API endpoint on Base, pay-per-call with USDC.","tagline":"x402-gated premium API endpoint on Base, pay-per-call with USDC.","description":"This endpoint at `/api/v1/benefits/63` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. The specific resource at `/benefits/63` is labeled \"Premium API Access\" but its exact functionality is not documented beyond that title. The platform advertises a uniform $0.02-per-request pricing model across all endpoints.\n\nPayment is handled via the x402 protocol on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The probe confirms the endpoint is live, returning a 402 challenge with `maxAmountRequired` of 20000 base units, which equals $0.02 (USDC uses 6 decimals). The payment scheme is \"exact\" with a 300-second timeout. No API keys or rate limits are required — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof.\n\nThe platform offers no detailed documentation for this specific endpoint. The docs, pricing, and API pages all resolve to a minimal \"Connect wallet\" prompt with no additional technical content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint accepts POST requests and returns `application/json`, but the structure of both input and output is unknown.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-settlement","base-network","json-api","no-api-key","premium-access"],"categories":["api","crypto"],"synonyms":["premium API","paid endpoint","x402 API","USDC API","lowpaymentfee","micropayment API","Base network API","pay-per-call"],"warnings":["No documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no technical content","The specific functionality of /api/v1/benefits/63 ('Premium API Access') is completely undocumented","No OpenAPI spec or request/response schema is provided","No example requests or responses are available to verify actual behavior"],"endpointUrl":"https://lowpaymentfee.com/api/v1/benefits/63","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/benefits/63","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response schema, and no description of what 'Premium API Access' at /benefits/63 actually returns. The docs pages are empty stubs. This is effectively a stub listing.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-19T16:36:49.472Z","embedding":[-0.0184021,-0.02758789,0.061035156,0.021011353,0.008895874,-0.027313232,-0.02305603,0.036956787,0.06970215,-0.07513428,0.036895752,-0.05517578,-0.026641846,-0.03189087,-0.023620605,0.0041542053,-0.0085372925,0.01991272,-0.05078125,0.032470703,0.028503418,-0.020111084,-0.0017795563,0.042419434,0.01158905,-0.03137207,-0.020233154,-0.024124146,-0.01802063,-0.033691406,0.02420044,-0.027038574,-0.004562378,0.016525269,-0.030227661,-0.026367188,0.010765076,0.047180176,0.024032593,-0.0050468445,-0.0030231476,-0.056671143,-0.008331299,0.0034675598,-0.049865723,-0.0020427704,-0.00078487396,-0.016921997,-0.014633179,0.0075035095,-0.037628174,-0.008682251,-0.016647339,0.005962372,0.015899658,0.014541626,-0.0057525635,-0.017333984,0.015350342,0.008598328,-0.0062294006,-0.060913086,-0.011627197,0.013381958,0.013145447,0.03668213,-0.010101318,0.050933838,0.008850098,0.052337646,0.04473877,0.05407715,0.023452759,0.016708374,0.0055999756,-0.012550354,0.0056114197,0.056427002,-0.012130737,-0.013298035,-0.022003174,-0.0051956177,-0.04840088,-0.001616478,-0.011985779,-0.04046631,-0.011054993,0.01158905,-0.029388428,0.039916992,-0.076293945,-0.011062622,-0.01461792,0.0138168335,0.0056991577,-0.015960693,-0.02758789,0.011421204,-0.006290436,0.012512207,0.010406494,-0.034729004,0.01600647,0.015808105,0.05142212,0.03869629,0.031143188,0.033416748,0.0011415482,-0.023117065,-0.009239197,0.01914978,0.005290985,-0.0039367676,0.012229919,0.01876831,-0.019958496,0.020812988,-0.007221222,0.030441284,-0.048675537,0.046722412,0.016036987,-0.023483276,0.013557434,-0.04522705,0.004928589,0.0075569153,-0.036254883,0.0024147034,0.014602661,0.011978149,0.032684326,-0.017929077,-0.042297363,0.0066375732,-0.01259613,-0.021881104,-0.055633545,-0.03366089,0.03717041,-0.035980225,0.02722168,0.027038574,-0.0947876,-0.0055122375,-0.041656494,0.019256592,-0.028335571,0.0029182434,-0.012741089,0.017807007,-0.01838684,0.00573349,-0.015060425,-0.021408081,0.0059432983,0.04208374,-0.009254456,0.04360962,0.010009766,0.03967285,0.003736496,0.00982666,0.01979065,0.0446167,0.00390625,-0.06793213,-0.08929443,-0.036376953,0.007129669,-0.02217102,-0.03439331,0.026016235,-0.0028476715,-0.08300781,-0.028244019,-0.020462036,0.005443573,-0.03845215,0.003232956,-0.035003662,0.004688263,-0.013206482,-0.06713867,-0.03842163,-0.040771484,0.06933594,0.02204895,0.0017538071,0.051208496,-0.005695343,0.054229736,0.0082092285,-0.0259552,-0.033294678,0.018692017,-0.018173218,0.01576233,0.008621216,0.0053215027,-0.04055786,0.038360596,0.073791504,0.009887695,-0.01574707,-0.00459671,-0.031341553,-0.04525757,-0.043518066,0.0036411285,0.004863739,0.008468628,0.045013428,-0.015838623,-0.032073975,0.0058250427,0.007091522,0.022613525,0.057678223,0.008285522,-0.000934124,0.01725769,0.024749756,-0.050323486,0.046173096,0.0340271,0.02810669,-0.037017822,-0.020019531,0.015327454,0.025741577,-0.027816772,0.0025672913,-0.018157959,0.024276733,-0.0019321442,0.0075035095,0.03640747,-0.021896362,-0.01638794,-0.02923584,-0.010147095,0.03152466,0.020065308,-0.033843994,-0.043518066,-0.07141113,0.020523071,0.058685303,0.030151367,0.0030899048,0.01423645,-0.020614624,-0.021972656,-0.07055664,0.05206299,0.062286377,-0.020584106,-0.010116577,0.03074646,-0.031707764,-0.02999878,-0.010810852,-0.005947113,-0.013015747,-0.028320312,0.0032901764,-0.04510498,0.008628845,0.030273438,0.03338623,0.042510986,0.0029945374,-0.040283203,-0.022155762,0.011581421,0.013656616,-0.031066895,-0.021591187,-0.009643555,0.024276733,0.027633667,0.0019464493,0.03314209,-0.012535095,0.015853882,-0.003774643,-0.00248909,-0.01727295,-0.035369873,0.02583313,0.0054779053,-0.072265625,0.014350891,-0.0017547607,0.062683105,-0.049804688,0.046020508,-0.014877319,0.0038051605,0.07678223,-0.004589081,-0.056884766,0.006855011,0.017623901,0.04168701,0.037506104,-0.0067253113,-0.016784668,-0.009887695,0.05038452,-0.013435364,0.0005187988,0.011764526,0.021621704,0.038238525,0.016815186,-0.080322266,-0.019439697,-0.015716553,-0.018356323,0.026687622,-0.035888672,0.02029419,-0.010681152,0.0040512085,-0.041290283,-0.0056991577,-0.033996582,0.017501831,-0.015625,-0.013725281,-0.0009860992,-0.0054893494,0.026138306,0.020904541,-0.008926392,-0.007156372,0.04724121,0.02192688,-0.013221741,-0.04208374,-0.02619934,-0.021392822,0.006412506,0.021606445,0.036834717,0.019744873,0.03765869,-0.043029785,0.016098022,0.026275635,0.0023441315,0.04525757,-0.009361267,0.020217896,-0.062805176,-0.052734375,-0.029937744,-0.05303955,0.029281616,0.009559631,0.010375977,0.054107666,0.0061836243,-0.027008057,-0.028915405,0.044921875,-0.03793335,0.004962921,0.038726807,-0.009567261,-0.022537231,0.0063934326,0.009315491,0.010299683,0.035064697,0.014434814,-0.0017824173,0.06713867,0.035980225,0.0013198853,0.01727295,0.012413025,0.018814087,-0.0070381165,-0.003856659,-0.013137817,-0.030273438,0.02293396,-0.016601562,-0.02734375,-0.08660889,0.035308838,0.04458618,0.06439209,0.021026611,0.0096588135,0.027130127,-0.015388489,0.0051956177,-0.02519226,-0.019805908,-0.02003479,-0.05532837,0.018112183,-0.010383606,0.002090454,-0.026901245,0.03363037,0.012336731,0.017791748,-0.041290283,0.061828613,-0.0023822784,-0.02909851,0.02949524,0.0128479,0.04446411,0.05722046,-0.046203613,0.02420044,0.030548096,-0.040405273,-0.004501343,0.031204224,-0.014343262,-0.009483337,-0.064941406,-0.03567505,0.007347107,0.010635376,-0.04815674,-0.01222229,0.005886078,0.028549194,0.020507812,-0.015037537,-0.01876831,-0.0039901733,-0.012275696,-0.055267334,-0.02279663,-0.031097412,0.022705078,0.04812622,-0.028366089,0.004634857,-0.0023670197,-0.0033340454,0.0056152344,0.016601562,0.0026340485,-0.0077209473,-0.036590576,0.019927979,0.00046992302,0.01828003,0.01259613,0.028366089,0.029678345,0.019485474,0.045318604,0.0053215027,-0.006084442,-0.05517578,0.0018482208,-0.062561035,0.00097322464,0.0028972626,-0.0109939575,0.0021591187,-0.010238647,-0.020385742,-0.024734497,0.0107040405,-0.02897644,0.022247314,0.024597168,-0.028808594,-0.019180298,-0.049591064,-0.019134521,0.0075645447,0.07476807,0.040283203,0.0042648315,-0.057525635,-0.011680603,0.03353882,-0.00082445145,0.014785767,-0.014839172,-0.007888794,-0.011695862,-0.028686523,-0.018508911,-0.025939941,0.025421143,0.004371643,-0.0107421875,0.029205322,-0.0102005005,0.030303955,0.0057754517,0.010726929,0.048736572,-0.013336182,0.009376526,-0.029312134,0.034301758,0.0016145706,-0.009063721,-0.05041504,0.050872803,0.012054443,0.031555176,-0.044647217,0.00957489,0.0009741783,0.017349243,0.013832092,-0.017456055,-0.005016327,0.00039362907,-0.048736572,-0.07446289,0.037017822,-0.0077781677,0.019042969,-0.0047798157,0.0059013367,0.02960205,0.004257202,-0.0020980835,0.021697998,-0.02949524,-0.008728027,-0.029724121,-0.033355713,-0.020477295,0.006412506,-0.013656616,0.026977539,-0.01210022,0.02407837,-0.0027217865,-0.023223877,0.03250122,-0.0043945312,0.0052719116,0.035614014,0.010726929,0.014816284,0.03640747,-0.003376007,-0.015045166,0.024337769,0.0012044907,0.000034213066,-0.017150879,0.03186035,0.021499634,-0.0010261536,-0.006855011,-0.0020256042,-0.015975952,-0.021591187,-0.00062322617,-0.0064582825,0.027511597,0.0063476562,-0.039123535,0.034851074,0.013153076,-0.037475586,-0.0209198,0.010177612,0.019943237,-0.04522705,0.009590149,0.022338867,0.056732178,-0.029815674,-0.0088272095,0.010513306,0.023040771,0.020401001,0.030593872,-0.017059326,0.007801056,-0.012123108,0.018051147,0.009025574,-0.019973755,-0.0009636879,-0.0065231323,0.020980835,0.031982422,0.021728516,-0.026672363,-0.012229919,0.0014867783,-0.0036773682,-0.018554688,0.015274048,0.02381897,0.008728027,-0.010421753,0.01687622,0.027633667,-0.028625488,-0.008804321,-0.013885498,0.035186768,-0.00440979,-0.008453369,0.022399902,0.0045814514,0.03817749,-0.048858643,-0.005630493,0.007335663,0.016464233,-0.018157959,-0.047210693,-0.026977539,0.0017433167,0.018920898,-0.0032024384,0.015113831,0.029464722,-0.0019035339,0.008682251,0.012771606,0.015838623,-0.018920898,-0.015792847,-0.048034668,-0.005947113,0.0021953583,-0.0044403076,-0.024963379,0.0023345947,-0.020339966,-0.032684326,0.005504608,-0.014442444,-0.006298065,-0.019622803,0.013435364,0.027709961,0.004146576,0.009880066,-0.018798828,-0.02708435,0.010185242,0.02142334,0.016220093,-0.04925537,0.011924744,-0.015426636,-0.0010404587,-0.009727478,0.026947021,0.029418945,0.024642944,-0.0016288757,0.023132324,-0.03225708,0.02268982,-0.028335571,0.012641907,0.019454956,-0.039489746,-0.0013818741,-0.024932861,-0.023376465,0.03326416,-0.024169922,0.0069274902,-0.03778076,-0.03665161,-0.017593384,-0.051879883,0.016418457,0.027313232,0.042633057,-0.029785156,0.010192871,0.00044441223,-0.00050735474,-0.01423645,-0.0066604614,0.0063438416,0.02079773,0.02003479,-0.0015525818,-0.03353882,-0.030090332,-0.0015697479,-0.0064582825,-0.04156494,-0.053253174,-0.021560669,0.000059068203,-0.0067329407,-0.0013055801,-0.027557373,-0.013618469,0.0016040802,-0.037139893,0.012512207,0.0099487305,0.024780273,0.01939392,-0.009590149,0.0010700226,0.026062012,-0.017745972,0.024276733,-0.001572609,0.0010128021,-0.030853271,0.0025939941,0.03778076,0.029968262,0.0012702942,-0.01184845,0.008384705,-0.021591187,-0.066345215,-0.0008921623,0.0013504028,0.013961792,0.00028276443,-0.015670776,-0.038330078,-0.00894165,-0.02468872,0.011177063,0.0065689087,0.014930725,0.025466919,0.0067329407,0.015205383,-0.010620117,-0.018203735,-0.037750244,0.017608643,0.0107421875,-0.0071258545,0.013656616,0.046905518,0.017456055,-0.012138367,-0.0030670166,0.00667572,0.01687622,-0.037994385,0.000020503998,-0.00026535988,0.013435364,-0.011116028,-0.015571594,-0.03967285,0.00497818,0.08459473,-0.00086450577,-0.004272461,-0.023345947,-0.00554657,0.012588501,0.044891357,-0.037109375,-0.013618469,-0.044830322,0.011581421,-0.02166748,0.0357666,0.010421753,0.02949524,-0.024734497,-0.05380249,0.00009649992,0.007499695,-0.004211426,-0.048217773,-0.018432617,-0.054901123,-0.0067443848,-0.021240234,-0.014343262,0.011703491,-0.0027942657,-0.008399963,-0.08477783,0.00004976988,0.058044434,0.0031833649,0.011627197,-0.031204224,0.022888184,0.01612854,-0.034057617,-0.029525757,0.0234375,-0.03012085,-0.0055999756,-0.033477783,0.03161621,-0.027557373,-0.029174805,0.022994995,0.008140564,0.014823914,-0.012641907,0.00554657,-0.016677856,0.0009250641,0.0012273788,0.026260376,-0.00687027,-0.020324707,0.028335571,-0.03942871,0.013412476,0.016036987,-0.006580353,0.018814087,0.024932861,0.028289795,-0.030014038,-0.0031642914,0.039489746,0.017868042,0.040496826,-0.03338623,0.041290283,0.013244629,-0.0030841827,0.01687622,-0.023162842,-0.030014038,-0.05078125,-0.033599854,0.0073394775,0.0132751465,0.010139465,-0.0063285828,0.007583618,0.016601562,-0.0074272156,0.009338379,-0.011985779,-0.020935059,-0.0138549805,0.00598526,0.013542175,0.0007286072,-0.0029201508,0.028427124,0.019989014,0.0368042,0.0034484863,-0.017364502,0.01651001,0.017715454,-0.023086548,0.010719299,0.0138168335,0.00029158592,0.016601562,0.018478394,0.0070152283,-0.036743164,-0.024169922,-0.017333984,-0.013114929,0.012367249,0.0022716522,-0.009223938,0.0022354126,-0.0045051575,0.0052261353,-0.042266846,0.011650085,-0.032592773,-0.03036499,-0.0019330978,-0.018081665,-0.0013666153,0.004589081,-0.0037136078,0.010185242,0.002653122,0.0524292,0.00095033646,0.00092840195,0.028289795,0.028213501,-0.008895874,-0.03048706,0.0017366409,-0.0021800995,-0.011199951,0.0024642944,-0.025344849,0.008811951,0.021560669,-0.023468018,0.002046585,-0.0001039505,0.026245117,-0.009140015,0.015670776,-0.0065994263,0.015899658,-0.01448822,0.038757324,-0.052978516,0.007247925,0.021316528,0.00983429,-0.00995636,-0.007419586,-0.031555176,0.022155762,-0.0021457672,-0.011581421,0.029937744,-0.005592346,0.016418457,-0.024520874,-0.00831604,-0.0077209473,-0.0211792,-0.019714355,0.029418945,0.013885498,-0.0021591187,0.020629883,-0.017944336,0.024215698,-0.03869629,0.025283813,-0.0011501312,-0.002281189,-0.019989014,-0.034179688,-0.018005371,-0.013801575,-0.0076141357,-0.0008816719,0.002084732,0.046325684,0.020736694,0.019195557,0.042236328,0.0047035217,-0.0030231476,-0.040802002,-0.034301758,-0.0038108826,-0.026977539,0.01676941,-0.030151367,0.047973633,0.050842285,-0.0066452026,0.03338623,0.039886475,0.030151367,0.012268066,0.014633179,0.00459671,0.006752014,-0.017181396,0.036254883,-0.0010690689,0.048034668,-0.011459351,0.016448975,0.0093307495,0.023895264,-0.023788452,0.03463745,0.07537842,0.02519226,-0.010314941,0.032043457,-0.002822876,-0.0039253235,-0.017608643,-0.016113281,0.058563232,-0.0039978027,0.052368164,0.03552246,0.0054740906,-0.0032348633,0.026901245,-0.021759033,-0.025466919,0.053863525,0.01927185,-0.018920898,-0.013259888,-0.009407043,0.0038928986,-0.06707764,-0.02909851,0.019088745,-0.0028820038,0.0017337799,0.004257202,0.0010604858,-0.016403198,0.031677246,0.02949524,0.023956299,-0.017990112,0.027893066,0.03427124,0.0019836426,0.025650024,0.009811401,0.028793335,-0.020126343,-0.011428833,0.013893127,0.016036987,0.00011974573,0.00075769424,0.020111084,0.01146698,0.055847168,0.039215088,-0.031799316,-0.0058174133,0.036193848,0.010284424,0.013519287,0.04852295,0.041290283,0.0038890839,0.037750244,0.041656494,0.022003174,-0.042510986,0.016830444,-0.011306763,0.01574707,0.0047950745,-0.018966675,0.007709503,-0.014144897,0.03036499,0.009742737,-0.0068511963,0.028915405,0.033294678,0.0034313202,0.0026187897,-0.0045051575,0.00484848,-0.007472992,-0.0003604889,0.011451721,-0.017288208,0.019180298,0.00969696,0.036346436,-0.011352539,0.0385437,-0.005596161,-0.016586304,-0.0025367737,0.013435364,-0.035339355,-0.0027828217,-0.011856079,-0.010887146,-0.045959473,0.0082473755,0.02319336,-0.022415161,0.029174805,0.003982544,0.0041542053,0.015281677,0.031173706,0.00844574,-0.0059814453,-0.013702393,-0.023071289,0.03189087,0.043304443,0.003435135,0.010116577,-0.008842468,0.0043296814,0.024169922,-0.005569458,-0.012664795,-0.011070251,-0.020004272,-0.04827881,-0.006412506,0.049224854,0.020111084,0.03781128,-0.003921509,-0.011489868,-0.008361816,0.023803711,0.0059051514,0.0027923584,-0.014350891,0.024993896,-0.016693115,0.041229248,0.035003662,-0.008415222,0.019012451,-0.022232056,-0.030334473,-0.0016021729,-0.0019283295,0.020202637,0.0034999847,0.010757446,-0.016281128,0.019454956,-0.0151901245,-0.04058838,0.0067443848,-0.023864746,-0.01524353,-0.029449463,0.0072631836,-0.0020198822,0.03111267,0.036956787,0.009422302,-0.02810669,0.06561279,-0.011726379,0.044891357,-0.014129639,0.013000488,0.047058105,0.03439331,0.031707764,0.024307251,0.026107788,-0.02748108,0.002122879,0.040863037,0.021224976,0.013847351,0.0032024384,-0.029129028,0.03567505,-0.0016908646,0.03289795,-0.016952515,-0.0119018555,0.018127441,0.000038802624,0.0020866394,0.007247925,0.0008158684,0.01008606,0.035949707,-0.037872314,-0.019241333,-0.015731812,-0.006828308,0.045776367,0.0040893555,0.0078125,-0.002521515,-0.022445679,0.014587402,-0.028182983,-0.018554688,0.00062942505,0.023651123,-0.043273926,0.0014295578,0.0040664673,0.014907837,-0.027450562,0.024871826,0.018081665,-0.0012750626,0.011375427,0.03753662,-0.0049819946,0.046844482,-0.014419556,0.030517578,0.040863037,-0.00064468384,-0.011024475,0.007843018,0.005306244,-0.016708374,0.0023517609,0.03866577,-0.002243042,0.01675415,0.00491333,-0.017501831,0.016448975,0.024032593,-0.00843811,0.008079529,-0.011627197,-0.013191223,0.0030937195,0.007904053,0.0012397766,0.018081665,0.0030097961,-0.019363403,0.008560181,0.038848877,0.01687622,-0.044799805,0.018035889,0.011421204,0.018997192,-0.030731201,-0.010269165,-0.007347107,-0.032684326,0.01020813,0.03225708,-0.0030727386,0.009864807,-0.017059326,-0.01234436,0.0151901245,0.02079773,0.018630981,0.0028686523,0.016036987,0.024642944,-0.016189575,0.0018987656,-0.01121521,-0.007850647,0.012374878,0.01033783,-0.015960693,-0.023101807,0.02015686,-0.0045661926,0.009048462,0.0017547607,-0.0104599,0.030563354,-0.018432617,-0.00920105,0.0019073486,0.012779236,-0.009544373,-0.019317627,-0.016952515,0.027236938,0.060302734,-0.013183594,-0.016571045,0.02067566,0.014434814,0.018936157,0.03189087,0.0007863045,0.039215088,0.03201294,-0.026809692,-0.030075073,0.009223938,-0.008010864,-0.034973145,0.02078247,-0.012367249,-0.00066947937,0.027267456,0.016296387,0.0012044907,-0.018005371,-0.018249512,-0.011108398,-0.022918701,0.015701294,-0.02128601,0.0053482056,-0.014732361,-0.006427765,0.011123657,-0.0126953125,-0.03036499,-0.027236938,-0.008155823,-0.011245728,-0.050689697,0.013320923,-0.025939941,0.0057868958,-0.01309967,0.0026054382,-0.0033340454,0.035888672,-0.009094238,0.0044059753,0.016204834,0.0259552,0.0070152283,0.012870789,0.02394104,-0.008773804,-0.03781128,-0.01524353,-0.0037384033,-0.0075302124,0.016311646,-0.021392822,0.037628174,0.0073661804,-0.005355835,0.00079393387,-0.008346558,-0.013465881,0.0037593842,-0.021072388,-0.0020618439,0.012825012,0.021759033,-0.0016927719,-0.006954193,0.041137695,-0.025878906,-0.01576233,0.028793335,0.025009155,0.008590698,0.03277588,-0.0067825317,-0.017333984,-0.017990112,0.0022354126,-0.01184082,0.0064315796,0.01448822,0.010902405,-0.011833191,-0.00027513504,0.022003174,0.0069999695,-0.008895874,0.026931763,-0.01084137,-0.006980896,0.02758789,0.010307312,0.0011806488,-0.01876831,-0.03225708,0.023269653,0.0362854,0.019561768,-0.0025405884,-0.01586914,0.016525269,-0.020950317,0.0030708313,0.031463623,-0.022125244,-0.023468018,-0.016174316,-0.041656494,0.014877319,-0.00034713745,0.0066375732,-0.0015611649,0.013885498,-0.027450562,-0.02003479,-0.006389618,0.028656006,0.012084961,0.0017175674,-0.017364502,-0.0075569153,0.013435364,-0.020309448,0.0033245087,-0.033569336,-0.029159546,-0.009315491,-0.020492554,0.020248413,0.009155273,-0.005634308,0.0034046173,-0.011787415,-0.011741638,0.0025138855,0.041778564,-0.014129639,-0.007221222,0.022644043,0.022735596,-0.02168274,0.018997192,-0.021957397,-0.017501831,0.01789856,0.0057678223,0.015060425,-0.021621704,0.02923584,0.011390686,-0.004425049,0.027267456,0.0064353943,0.023468018,-0.015136719,0.011413574,0.0063209534,-0.0065994263,0.017150879,-0.0262146,-0.026153564,0.0053482056,-0.017471313,-0.0413208,0.013031006,0.0413208,0.043426514,-0.014694214,0.039611816,-0.0048980713,-0.014823914,0.012779236,0.0141067505,-0.027191162,0.0030727386,0.03878784,0.004257202,-0.011947632,0.0022449493,-0.018569946,-0.02456665,-0.014213562,0.010696411,-0.0022296906,-0.006298065,0.029159546,0.026763916,0.04147339,0.012992859,0.020507812,0.020553589,0.009635925,0.025375366,0.0020427704,0.053710938,0.017333984,-0.036712646,0.013595581,0.006843567,-0.012397766,-0.01902771,-0.009689331,0.010475159,-0.018463135,0.006149292,0.008071899,0.029205322,-0.0184021,0.008018494,-0.019317627,0.0065307617,-0.033325195,-0.011367798,-0.024383545,0.012237549,0.04168701,0.022125244,0.019851685,0.016357422,-0.021881104,0.023773193,0.040771484,-0.0028190613,-0.04244995,-0.010116577,0.009254456,0.00242424,-0.005630493,0.01146698,-0.021133423,-0.008796692,-0.0015926361,-0.020889282,0.0051994324,0.002166748,0.018981934,0.009605408,0.0020179749,-0.013031006,0.03152466,-0.0054473877,-0.0033454895,0.0078125,0.010681152,0.025360107,0.042022705,-0.0056495667,0.025619507,0.036834717,-0.03137207,0.050689697,-0.010284424,0.022445679,-0.022369385,0.0009069443,-0.034851074,-0.008888245,-0.016448975,0.00907135],"createdAt":"2026-04-18T19:59:45.589Z","updatedAt":"2026-04-22T04:02:19.858Z","lastSeenAt":"2026-04-22T04:02:19.858Z","tsv":"'/api/v1/benefits/63':32 '/benefits/63':64 '0.02':85,128 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':108 '20000':123 '300':140 '402':118 '6':131 'Base network API' 'USDC API' 'accept':209 'access':69 'across':91 'addit':191 'advertis':82 'ai/ml':53 'analyt':52 'api':5,19,49,68,144,179 'application/json':214 'attach':153 'avail':206 'base':8,22,103,124 'base-network' 'beyond':77 'call':12,26 'caller':151 'challeng':119 'collect':40 'confirm':111 'connect':186 'content':193 'contract':107 'data':51,56 'decim':132 'detail':169 'doc':176 'document':76,170 'endpoint':6,20,30,93,113,174,208 'equal':127 'exact':72,137 'exampl':204 'finance/web3':55 'function':73 'gate':3,17 'handl':96 'header':158 'infer':54 'infrastructur':58 'input':220 'json-api' 'key':145 'label':66 'limit':148 'live':115 'lowpaymentfee' 'lowpaymentfee.com':37 'maxamountrequir':121 'micropayment API' 'minim':185 'model':90 'network':104 'no-api-key' 'offer':167 'openapi':197 'output':222 'page':180 'paid endpoint' 'part':34 'pay':10,24,46 'pay-per-cal':9,23 'pay-per-call' 'pay-per-request':45 'payload':205 'payment':94,134,157,163 'per':11,25,47,87 'per-request':86 'platform':38,81,166 'post':210 'premium':4,18,67 'premium API' 'premium-access' 'price':89,177 'probe':110 'prompt':188 'proof':164 'protocol':44,100 'rate':147 'request':48,88,211 'request/response':200 'requir':150 'resolv':182 'resourc':62 'return':116,213 'schema':201 'scheme':135 'second':141 'simpli':152 'span':50 'spec':198 'specif':61,173 'structur':217 'technic':192 'timeout':142 'titl':79 'uniform':84 'unit':125 'unknown':224 'usdc':14,28,106,129 'usdc-settlement' 'use':105,130 'util':59 'valid':161 'via':97 'wallet':187 'x':156 'x-payment':155 'x402':2,16,43,99,162 'x402 API' 'x402-gated':1,15 'x402-payment' 'x402-protocol':42","prices":[{"id":"28197124-173c-4d2f-93df-1adf39fc643d","listingId":"45464e2c-393a-482d-b01a-3998c1942614","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/benefits/63","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:59:45.589Z"}],"sources":[{"listingId":"45464e2c-393a-482d-b01a-3998c1942614","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/benefits/63","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:59:45.589Z","lastSeenAt":"2026-04-22T04:02:19.858Z"}],"details":{"listingId":"45464e2c-393a-482d-b01a-3998c1942614","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/benefits/63 \\\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 maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/benefits/63"},{"claim":"Platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/benefits/63"},{"claim":"Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium data or services behind a per-request paywall","Programmatic pay-per-use API consumption without subscription or API keys","Agent-driven workflows that need on-demand paid API access via x402"],"bestFor":["Developers wanting zero-commitment pay-per-call API access","AI agents that can settle x402 payments autonomously on Base","Users who prefer crypto micropayments over traditional API key subscriptions"],"notFor":["Anyone needing detailed documentation or guaranteed SLAs before integrating","Use cases requiring free or high-volume bulk access at discounted rates"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:25.997Z"},"updatedAt":"2026-04-22T04:02:19.858Z"}}