{"id":"f149a219-28d6-4ea5-8d8f-98d62cf1276a","shortId":"nAYtAD","kind":"x402","title":"x402-gated transaction receipt endpoint on Base, paid per-call in USDC.","tagline":"x402-gated transaction receipt endpoint on Base, paid per-call in USDC.","description":"This endpoint at lowpaymentfee.com provides access to a transaction receipt resource (transaction ID 108) behind an x402 paywall. The broader lowpaymentfee.com platform advertises a suite of pay-per-request APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced at $0.02 per request, settled in USDC on the Base network via the x402 protocol.\n\nThe specific endpoint probed (/api/v1/transactions/108/receipt) returns a valid x402 challenge with a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base). Since USDC uses 6 decimals, this translates to $0.02 per call, consistent with the site's advertised pricing. Payment is made via the x402 \"exact\" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, with a 300-second timeout. No API keys or rate limits are required; access is instant upon payment.\n\nDocumentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no additional technical content. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the receipt payload actually contains. The endpoint is live and responding with a proper 402 challenge, but the lack of documentation makes it difficult to know what data is returned or what input parameters (if any) the POST body expects.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","transaction-receipt","pay-per-request","no-api-key","no-rate-limit"],"categories":["finance","infrastructure"],"synonyms":["transaction receipt API","x402 paid endpoint","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee"],"warnings":["Documentation pages (/docs, /api, /pricing, /README) are all empty — only show 'Connect wallet' with no technical content","No OpenAPI or schema documentation available for any endpoint","No response schema or example payloads documented — unknown what data the receipt endpoint actually returns","The specific endpoint is for transaction ID 108; it is unclear whether this is a demo resource or a production receipt"],"endpointUrl":"https://lowpaymentfee.com/api/v1/transactions/108/receipt","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/transactions/108/receipt","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming it works. However, there is no OpenAPI spec, no documented request/response schema, no examples, and the docs pages are empty stubs. The specific purpose of this receipt endpoint is unclear beyond its URL path. Pricing is clear ($0.02/request in USDC on Base).","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":"2026-04-19T12:07:58.027Z","embedding":[-0.02279663,-0.03616333,0.029785156,0.0073165894,-0.004333496,-0.019851685,-0.0118255615,0.029724121,0.048828125,-0.07244873,0.037750244,-0.043640137,-0.041748047,-0.03012085,-0.01576233,0.015235901,0.008331299,0.024856567,-0.053833008,0.04135132,0.03555298,-0.045166016,-0.01574707,0.012802124,-0.017318726,-0.027633667,-0.018096924,-0.0062065125,-0.038482666,-0.024551392,0.034820557,-0.02607727,-0.028823853,0.0025634766,-0.008590698,0.02696228,-0.0038261414,0.020019531,0.032836914,-0.029464722,-0.0030517578,-0.04220581,0.0026550293,-0.014076233,-0.036346436,0.009048462,0.001335144,-0.008377075,0.006515503,-0.013389587,-0.060272217,-0.0019626617,-0.00157547,0.022766113,0.004245758,0.013000488,-0.0065689087,0.010314941,0.027923584,0.0008735657,-0.013214111,-0.06945801,-0.014129639,-0.026351929,0.010391235,0.047729492,-0.0076141357,0.05718994,0.010292053,0.07879639,0.03265381,0.057739258,0.04827881,0.010765076,0.017364502,-0.008743286,-0.004096985,0.025360107,-0.039123535,-0.016525269,-0.004901886,-0.022476196,-0.08148193,-0.008834839,-0.01675415,-0.048339844,-0.021835327,0.0069236755,-0.015197754,0.031097412,-0.06964111,0.00819397,0.018325806,0.031463623,-0.009094238,-0.039489746,-0.042022705,0.008720398,-0.003168106,0.002199173,-0.010223389,-0.032287598,0.04852295,-0.009124756,0.05630493,0.03677368,-0.008094788,0.023025513,-0.00504303,-0.0033283234,0.00097322464,0.018417358,0.026809692,-0.019256592,0.016937256,-0.004798889,-0.030960083,0.025527954,-0.017684937,0.037506104,-0.040985107,0.06933594,-0.006877899,-0.012527466,0.007095337,-0.047729492,-0.024276733,0.004184723,-0.028305054,0.013664246,0.055847168,0.014877319,0.0028038025,-0.022399902,-0.021942139,0.008918762,-0.009338379,-0.016540527,-0.03869629,-0.024871826,0.02420044,-0.020324707,0.004917145,0.043670654,-0.08239746,0.0040740967,-0.044158936,0.016479492,-0.021957397,-0.0064430237,0.009407043,0.007873535,-0.019454956,-0.025314331,-0.017456055,-0.020080566,-0.003276825,0.052001953,-0.002532959,0.020065308,-0.010681152,0.031311035,0.034332275,0.01864624,0.011749268,0.023483276,0.009017944,-0.064575195,-0.07635498,-0.0010738373,0.010444641,-0.019119263,-0.036834717,0.01625061,-0.02279663,-0.08251953,-0.004562378,0.020385742,0.0030555725,-0.048187256,-0.00012648106,-0.033325195,0.010063171,-0.025115967,-0.035308838,-0.034118652,-0.03768921,0.057891846,0.019927979,0.02986145,0.010223389,0.002784729,0.034973145,0.014968872,-0.010650635,-0.030014038,0.007663727,-0.019622803,0.0385437,-0.0048065186,0.0102005005,-0.014976501,0.02053833,0.07336426,-0.0067596436,-0.057800293,0.0035972595,-0.0463562,-0.038391113,-0.010673523,0.020996094,0.005718231,-0.013511658,0.029266357,-0.042663574,0.0054626465,0.027023315,0.027023315,0.011413574,0.053894043,0.01109314,-0.00969696,0.022415161,0.021316528,-0.032287598,0.05368042,0.026611328,0.033843994,-0.033325195,-0.064086914,0.007419586,0.03277588,-0.028381348,-0.013366699,-0.00705719,0.034851074,0.002002716,-0.013931274,0.025146484,-0.005821228,-0.02696228,-0.018234253,0.018554688,0.029800415,0.015670776,-0.023147583,-0.053985596,-0.073913574,0.06878662,0.05038452,0.014152527,-0.00011605024,-0.0012960434,-0.017837524,-0.032928467,-0.08068848,0.04675293,0.064331055,-0.011062622,-0.03768921,0.047698975,-0.018234253,-0.039916992,-0.0035190582,-0.026260376,-0.030944824,-0.009124756,-0.0035743713,-0.033721924,0.021850586,-0.013214111,0.02355957,0.06213379,0.014518738,-0.061676025,-0.020248413,-0.008460999,0.008834839,-0.03665161,-0.018478394,0.00064611435,0.033172607,0.019256592,0.0211792,-0.0021820068,0.029937744,0.004825592,-0.025909424,0.009941101,-0.006664276,-0.018508911,0.018157959,0.0076560974,-0.056152344,0.0069465637,-0.0052948,0.053741455,-0.06173706,0.041809082,-0.029708862,0.0010786057,0.06976318,-0.011985779,-0.055023193,0.0024356842,0.02017212,0.01965332,0.017669678,0.025650024,0.022033691,-0.024795532,0.054138184,-0.031585693,-0.00011867285,0.0073432922,0.022354126,0.044281006,-0.00028443336,-0.055847168,-0.05203247,0.019683838,-0.016159058,0.027114868,-0.013519287,0.04437256,-0.008583069,0.0064697266,-0.036010742,-0.0019760132,-0.013572693,0.008735657,-0.021728516,-0.0012693405,-0.028381348,-0.028198242,0.029708862,0.0073661804,-0.017700195,0.016616821,0.074279785,0.013092041,-0.007232666,-0.024551392,-0.029907227,-0.029373169,-0.01272583,0.02305603,0.005340576,0.020309448,0.04119873,-0.02961731,0.018539429,0.019439697,-0.018005371,0.037902832,-0.0008831024,-0.0022201538,-0.06378174,-0.037475586,-0.02192688,-0.046020508,0.031982422,0.016189575,0.01576233,0.05532837,0.016616821,-0.03338623,-0.019760132,0.03353882,-0.03338623,0.01448822,0.039367676,-0.018630981,-0.019119263,-0.0022830963,0.003967285,0.010131836,0.039642334,0.019805908,0.016601562,0.06762695,0.03427124,0.004749298,0.026016235,0.026367188,0.019561768,-0.0070724487,-0.020065308,-0.00856781,-0.035095215,0.033081055,-0.022476196,-0.027282715,-0.057495117,0.035125732,0.03744507,0.05706787,0.0155181885,0.029678345,0.031707764,0.025939941,0.02368164,0.00020086765,-0.023635864,-0.04260254,-0.02217102,0.019866943,-0.013999939,0.0011920929,-0.017501831,0.018844604,0.007675171,0.010429382,-0.03491211,0.042785645,-0.014320374,-0.005252838,0.02355957,0.030044556,0.04815674,0.04699707,-0.028198242,-0.0074043274,0.030532837,-0.03692627,0.020584106,0.024902344,-0.01197052,-0.013511658,-0.051116943,-0.036346436,-0.0063591003,-0.00737381,-0.055023193,-0.00749588,0.007888794,0.02571106,0.031173706,-0.024780273,-0.03869629,0.020492554,-0.022872925,-0.02796936,0.00762558,-0.053375244,0.024887085,0.029342651,-0.034210205,0.033081055,0.0016899109,0.0059776306,-0.015029907,0.012428284,-0.005203247,0.0022354126,-0.029083252,0.03250122,-0.008255005,-0.0043144226,-0.0009937286,0.03265381,0.026275635,0.029190063,0.03463745,0.013572693,-0.011665344,-0.062683105,0.027770996,-0.034362793,0.0033226013,0.022888184,-0.031402588,0.0027103424,0.0009756088,-0.031829834,-0.03213501,-0.0023975372,-0.023025513,-0.0005865097,0.022583008,-0.030212402,-0.016647339,-0.05041504,-0.033294678,-0.011886597,0.055633545,0.01612854,-0.0010271072,-0.057739258,-0.010574341,0.020767212,0.0037555695,-0.0040397644,-0.014282227,-0.020614624,-0.009056091,-0.016036987,-0.031433105,-0.014472961,0.03970337,0.007259369,-0.008087158,0.009422302,0.0063209534,-0.00010043383,0.025466919,-0.011940002,0.033599854,-0.0003015995,-0.0051727295,0.007949829,0.026443481,0.013977051,-0.03567505,-0.048217773,0.044433594,-0.016738892,0.037139893,-0.043945312,-0.008033752,0.00007927418,0.0078048706,0.002620697,-0.00333786,-0.0027599335,0.006587982,-0.030685425,-0.065979004,0.040008545,-0.00592041,0.036590576,0.024978638,0.015213013,0.030426025,-0.008041382,0.015731812,0.008651733,-0.035339355,-0.029907227,-0.04534912,-0.04522705,-0.028564453,-0.004135132,-0.029342651,0.024353027,-0.008079529,0.0143585205,-0.007888794,-0.027557373,0.043304443,-0.0035095215,0.0068588257,0.012557983,0.011131287,0.015510559,0.026000977,0.018066406,-0.057739258,0.036346436,-0.011444092,0.004951477,-0.0137786865,0.016921997,0.02041626,-0.040161133,0.01361084,-0.019515991,0.00013422966,-0.008094788,-0.0075531006,-0.0031394958,0.023666382,0.026397705,-0.0491333,0.02279663,0.0022201538,-0.027328491,-0.027740479,0.015327454,0.028289795,-0.03353882,0.018600464,0.025375366,0.046020508,-0.010910034,-0.0031528473,0.010932922,0.03967285,0.033599854,0.01675415,-0.0032577515,0.030914307,-0.0056915283,0.034820557,-0.002040863,-0.0071792603,-0.00040268898,0.006122589,0.023513794,0.026657104,0.009254456,-0.0046157837,-0.04458618,-0.010429382,0.0071792603,-0.014152527,0.03604126,0.013084412,0.031707764,-0.015083313,0.013214111,0.029785156,-0.038360596,-0.0084991455,-0.0016794205,0.04937744,-0.010040283,0.004043579,0.009353638,0.023162842,0.027694702,-0.06298828,-0.010719299,-0.008560181,0.009063721,0.0020370483,-0.056884766,-0.026947021,-0.0146865845,0.04171753,-0.0085372925,0.0044784546,0.036499023,0.011756897,0.0027236938,0.018371582,0.009727478,-0.0018291473,-0.0025463104,-0.044677734,-0.011260986,-0.008415222,0.015914917,-0.030288696,0.024276733,-0.004798889,-0.012802124,0.0076065063,-0.03845215,0.0018091202,-0.022964478,0.0066108704,0.04144287,-0.008712769,0.00749588,-0.0018224716,-0.03656006,0.009117126,0.010131836,0.016220093,-0.027114868,0.029785156,-0.0138168335,-0.0154418945,-0.01626587,0.0031375885,0.015159607,0.010108948,0.012359619,0.028198242,-0.027954102,0.048217773,-0.012229919,0.011451721,0.005420685,-0.018188477,-0.023376465,-0.03717041,-0.0143966675,0.029785156,-0.0024051666,-0.0011463165,-0.025405884,-0.05496216,-0.023590088,-0.056152344,0.021530151,0.013366699,0.046020508,-0.015312195,0.009117126,-0.013122559,0.0047302246,0.0022182465,0.0035552979,-0.013305664,0.035369873,0.020339966,0.019485474,-0.019866943,-0.02684021,-0.023269653,0.0077552795,-0.06695557,-0.04296875,-0.0042686462,0.025405884,-0.0016946793,-0.0065193176,-0.02619934,-0.018417358,-0.0047416687,-0.026351929,0.0031147003,-0.0029125214,0.012512207,0.0060691833,0.0068206787,0.0003581047,0.021453857,-0.024856567,0.029724121,0.013023376,-0.000042259693,-0.036865234,0.014015198,0.02394104,0.005710602,-0.024017334,-0.025634766,0.014656067,-0.016494751,-0.044891357,0.014595032,0.0010538101,-0.013595581,-0.02218628,0.01864624,-0.043060303,0.0024738312,-0.05355835,-0.023635864,0.0042266846,0.014564514,0.017227173,5.9604645e-7,0.0051116943,-0.002521515,-0.008094788,-0.047607422,0.011665344,0.010002136,-0.0027008057,0.008758545,0.06402588,0.008377075,-0.016693115,-0.012886047,-0.02796936,0.0027236938,-0.019958496,0.026763916,-0.011489868,0.007385254,-0.0034866333,-0.00894165,-0.043121338,0.012229919,0.04736328,-0.009750366,-0.008110046,-0.014526367,0.0070724487,0.020721436,0.033599854,-0.03768921,0.0055351257,-0.01966858,0.019165039,-0.019577026,0.010253906,-0.00086307526,0.020095825,-0.018676758,-0.052947998,-0.000065386295,-0.017669678,-0.00033783913,-0.05331421,-0.025680542,-0.051696777,0.005542755,0.007637024,-0.023788452,0.009262085,0.01096344,-0.022079468,-0.08660889,0.0009355545,0.052856445,-0.0008211136,0.02079773,-0.0017948151,0.022094727,0.03652954,-0.018249512,-0.020050049,0.00894928,-0.0234375,-0.010681152,-0.026382446,0.021987915,-0.021636963,-0.015022278,0.014854431,0.015945435,0.009864807,-0.018051147,-0.010910034,-0.02684021,-0.001077652,0.008460999,0.009262085,-0.016494751,-0.017044067,0.03677368,-0.056884766,0.032928467,0.012390137,0.009170532,0.003921509,0.0435791,0.032318115,-0.03564453,-0.00061130524,0.016174316,0.023849487,0.052947998,-0.030456543,0.030914307,0.006793976,0.009819031,0.0030574799,-0.012054443,-0.012649536,-0.02911377,-0.015007019,0.018600464,0.012130737,-0.013496399,-0.020507812,-0.009880066,0.015548706,0.03265381,-0.0036392212,-0.013496399,-0.022766113,-0.039031982,0.0076179504,0.008003235,-0.00806427,-0.0078125,0.016998291,0.0418396,0.044525146,0.011199951,-0.017578125,0.011993408,0.025787354,-0.0069236755,-0.0107421875,0.023651123,0.018295288,0.0181427,0.02532959,0.015342712,-0.030059814,-0.030761719,-0.0070114136,-0.016937256,0.009117126,-0.017166138,0.011299133,0.008636475,0.0020313263,0.0039596558,-0.015777588,0.016433716,-0.033111572,-0.04232788,-0.0075149536,-0.005672455,0.03213501,0.0064964294,-0.011436462,0.021026611,-0.010772705,0.052825928,0.0020828247,-0.024887085,0.01737976,0.045898438,0.011009216,-0.024993896,-0.0005364418,-0.0064048767,-0.021347046,-0.008163452,-0.022460938,0.03616333,0.008102417,-0.007911682,0.002840042,-0.010169983,0.029449463,-0.0126953125,0.01689148,-0.010169983,0.001906395,-0.0118637085,0.05960083,-0.041503906,0.025421143,0.023803711,-0.0110321045,0.010108948,-0.0040664673,-0.020812988,0.028121948,0.017181396,-0.010368347,0.028381348,-0.004699707,0.042785645,-0.0158844,-0.022354126,-0.0026664734,-0.03488159,-0.0309906,-0.0055656433,-0.019515991,-0.015838623,0.012359619,-0.01751709,0.026687622,-0.022125244,0.01348114,-0.0019111633,-0.014297485,-0.024765015,-0.018478394,-0.00818634,-0.017211914,-0.015045166,0.0059432983,-0.00592041,0.060333252,0.03012085,0.017669678,0.037353516,0.018127441,0.015144348,-0.047332764,-0.03475952,-0.0033740997,-0.0027675629,0.0051574707,-0.012054443,0.049713135,0.053466797,-0.0031147003,0.04916382,0.024414062,0.03213501,-0.0076828003,0.01889038,-0.01448822,0.007835388,-0.01637268,0.036499023,-0.0107040405,0.035705566,-0.018569946,0.02168274,0.016189575,0.01914978,-0.015571594,0.021469116,0.07476807,0.01600647,-0.007663727,0.016860962,0.0044898987,-0.026626587,-0.024795532,-0.021606445,0.047058105,0.013015747,0.022583008,0.054229736,0.018554688,0.009544373,0.02394104,-0.004497528,-0.019470215,0.05154419,0.018508911,-0.010604858,-0.021209717,-0.018341064,0.016418457,-0.040740967,-0.0029773712,-0.00045728683,-0.018951416,0.0004813671,0.00064611435,-0.01096344,-0.0013847351,0.01663208,0.012283325,0.03338623,-0.015403748,0.026611328,0.010520935,0.0010900497,0.01663208,0.019104004,0.018463135,-0.028869629,-0.020233154,0.0259552,0.029312134,-0.010070801,-0.022369385,0.04058838,0.02053833,0.04776001,0.03857422,-0.024963379,-0.0039367676,0.02684021,0.006916046,-0.0026855469,0.051727295,0.032348633,0.00730896,0.042785645,0.03062439,0.035888672,-0.03112793,0.01828003,-0.013313293,0.0006303787,-0.015640259,-0.005065918,0.013092041,-0.0053215027,0.039093018,-0.014129639,-0.0067367554,0.020111084,0.027633667,0.00043916702,-0.010665894,-0.008766174,0.0054473877,-0.019042969,-0.012504578,0.02470398,-0.011947632,0.017837524,0.0031986237,0.032043457,-0.046539307,0.026046753,0.002714157,-0.03390503,-0.018173218,0.008590698,-0.046081543,0.0071411133,-0.0031585693,-0.012329102,-0.042175293,0.006290436,0.013473511,-0.018173218,0.011795044,0.011131287,0.003692627,-0.010955811,0.03967285,0.016998291,-0.007835388,-0.0055656433,-0.02015686,0.00932312,0.040100098,0.012870789,-0.015380859,-0.010360718,-0.0052948,-0.000849247,-0.0146865845,-0.01209259,0.019515991,-0.020507812,-0.022232056,0.020935059,0.045196533,0.004814148,0.052520752,-0.016738892,-0.009750366,0.0025157928,0.04421997,0.0047683716,-0.025238037,-0.018447876,0.013130188,-0.025741577,0.04385376,0.02859497,-0.0018463135,0.028533936,0.0129776,-0.01902771,-0.0015954971,-0.025405884,0.027252197,-0.016723633,-0.00011605024,-0.015602112,0.012176514,-0.023727417,-0.022766113,-0.009460449,-0.022766113,-0.016326904,-0.010719299,0.020965576,0.0007548332,0.025924683,0.0368042,0.008918762,-0.017166138,0.057434082,-0.017532349,0.045013428,0.0006790161,-0.012306213,0.045959473,0.027435303,0.05105591,0.01914978,0.0143585205,-0.032684326,0.028701782,0.033721924,0.01751709,0.008934021,0.004627228,-0.011360168,0.03161621,-0.013496399,0.02897644,0.00091457367,-0.01689148,0.023239136,-0.024658203,-0.01461792,0.0035419464,-0.01058197,0.005016327,0.050323486,-0.029647827,-0.0056762695,-0.023956299,-0.014930725,0.022705078,-0.012969971,-0.0032310486,0.0014076233,-0.0119018555,0.012542725,-0.011932373,-0.0006670952,0.014320374,0.037353516,-0.04385376,0.008804321,0.015960693,0.011299133,-0.015670776,0.01965332,0.043518066,-0.001074791,-0.001156807,0.044891357,-0.014541626,0.04550171,-0.0021095276,0.034973145,0.029754639,0.007083893,-0.008773804,0.017303467,0.014472961,-0.012962341,0.007381439,0.031433105,-0.01398468,0.003458023,0.00030136108,-0.0048561096,-0.0008678436,-0.0063171387,-0.021102905,0.0053596497,-0.0077209473,-0.019760132,0.016082764,0.019226074,-0.0035877228,0.0031375885,0.009727478,-0.00023245811,0.0045661926,0.02268982,0.026992798,-0.036834717,-0.0019741058,0.006980896,0.0043144226,-0.012329102,-0.021102905,-0.0070495605,-0.044769287,0.0061531067,0.01991272,0.007381439,0.0068130493,-0.014518738,-0.017669678,0.017791748,0.0068626404,0.013092041,-0.0064849854,0.007980347,0.018341064,-0.03125,0.0041503906,-0.0077934265,-0.010169983,0.015022278,0.018737793,-0.02432251,-0.016525269,0.0054092407,-0.013053894,0.016677856,-0.015914917,0.013557434,0.027618408,-0.01133728,0.00299263,-0.0022716522,0.020935059,-0.028289795,-0.016815186,-0.004459381,0.017364502,0.05419922,-0.008239746,-0.0061950684,0.01084137,0.030456543,0.025253296,0.03086853,0.026473999,0.047729492,0.027191162,-0.02293396,-0.016921997,0.010246277,-0.014854431,-0.02281189,0.017120361,-0.032562256,-0.0020980835,-0.0050086975,0.018554688,-0.005264282,-0.030807495,-0.0025253296,-0.009292603,-0.007457733,0.020965576,-0.013885498,0.022018433,-0.026885986,-0.006690979,0.029006958,-0.02810669,-0.0181427,-0.028411865,-0.023361206,-0.018249512,-0.05960083,0.008857727,-0.031143188,0.013496399,-0.014579773,0.0049476624,0.0029621124,0.023635864,0.011131287,-0.020217896,0.010223389,0.039398193,0.010284424,0.025604248,0.014450073,-0.032562256,-0.021347046,-0.010803223,0.002878189,-0.0256958,0.036590576,-0.006549835,0.022109985,0.005458832,-0.036621094,0.000436306,-0.0058631897,-0.024169922,-0.00365448,-0.022613525,-0.0105896,0.011924744,0.020309448,0.022750854,-0.0034122467,0.04373169,-0.026245117,-0.007873535,0.021347046,0.03237915,-0.0030345917,0.048583984,-0.01259613,0.00548172,-0.03515625,0.0017547607,-0.0051116943,0.0066108704,-0.008766174,0.0211792,-0.008590698,0.031402588,0.006904602,-0.011520386,0.012290955,0.034851074,0.017684937,0.013023376,0.02218628,0.009346008,0.01448822,-0.012763977,-0.004714966,0.0025558472,0.05117798,0.021652222,-0.0012016296,-0.013305664,0.014266968,-0.023590088,0.007698059,0.02784729,-0.024810791,-0.029800415,-0.015792847,-0.030838013,0.017852783,-0.007949829,0.01663208,0.0018806458,0.017974854,-0.012878418,-0.019958496,-0.026779175,0.022949219,0.011299133,-0.010032654,-0.002155304,-0.0046195984,0.016464233,-0.021896362,-0.0061950684,-0.043762207,-0.039245605,-0.002790451,-0.023254395,0.033172607,-0.0019760132,-0.008293152,-0.011627197,-0.014930725,-0.019561768,0.024490356,0.011955261,-0.008377075,-0.0021629333,0.011627197,0.031677246,-0.007419586,0.023101807,-0.0025501251,0.014259338,0.008987427,-0.0018930435,0.029083252,-0.008041382,0.02619934,0.007858276,0.010734558,0.029708862,0.0055503845,0.022079468,-0.048980713,-0.00844574,0.0044441223,-0.003686905,0.026885986,-0.008796692,-0.039398193,-0.006843567,-0.02494812,-0.0413208,0.0021247864,0.008308411,0.028289795,-0.009597778,0.044525146,-0.010192871,-0.023010254,0.01939392,0.0143966675,-0.027740479,0.01625061,0.019424438,-0.01890564,0.0045204163,0.0052223206,-0.015571594,-0.0077285767,-0.014953613,-0.003622055,-0.011192322,0.0017681122,-0.00019049644,0.028640747,0.03201294,0.018997192,0.029342651,0.0010614395,0.009468079,0.023834229,0.006000519,0.032287598,-0.007835388,-0.022232056,-0.004951477,0.002313614,-0.028121948,0.020431519,0.0029087067,0.0021648407,-0.0335083,0.008651733,0.0057754517,0.020233154,0.0060539246,0.01008606,-0.008621216,-0.008354187,-0.02293396,-0.0022735596,-0.042541504,0.01637268,0.0234375,0.00945282,0.021881104,-0.0019226074,-0.022338867,0.014762878,0.037139893,-0.0084991455,-0.04071045,-0.0178833,0.003622055,-0.00084733963,-0.001376152,0.016189575,-0.02444458,-0.020401001,0.0033454895,-0.010810852,-0.015266418,-0.0032978058,0.017837524,0.0129852295,-0.012794495,-0.02029419,0.01928711,-0.008399963,-0.011177063,-0.0023384094,0.0016298294,0.021347046,0.033172607,-0.0013113022,-0.007045746,0.03250122,-0.03677368,0.06414795,-0.019500732,0.019042969,-0.017333984,0.01083374,-0.05154419,-0.012672424,-0.0063171387,-0.0072135925],"createdAt":"2026-04-18T18:58:21.958Z","updatedAt":"2026-04-25T01:32:59.720Z","lastSeenAt":"2026-04-25T01:32:59.720Z","tsv":"'/api':183 '/api/v1/transactions/108/receipt':110 '/docs':182 '/pricing':184 '/readme':186 '0.02':92,138 '000':121 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':158 '0x8335':126 '108':42 '20':120 '2913':127 '300':161 '402':228 '6':133 'Base network API' 'USDC micropayment API' 'access':34,172 'actual':217 'addit':197 'address':157 'advertis':51,146 'ai/ml':63 'analysi':66 'analyt':62 'api':59,165 'base':8,22,100,122,129 'base-network' 'behind':43 'bodi':252 'broader':48 'call':12,26,140 'challeng':115,229 'classif':68 'connect':192 'consist':141 'contain':218 'content':199 'convers':85 'data':61,71,241 'decim':134 'difficult':237 'document':177,208,234 'embed':69 'endpoint':6,20,30,88,108,220 'estim':79 'exact':154 'exampl':211 'exchang':74 'expect':253 'extrem':179 'feed':73 'finance/web3':70 'gas':78 'gate':3,17 'generat':86 'geocod':83 'id':41 'infer':64 'infrastructur':81 'input':246 'instant':174 'key':166 'know':239 'lack':232 'limit':169 'live':222 'lowpaymentfee' 'lowpaymentfee.com':32,49 'made':150 'make':235 'maxamountrequir':118 'network':101 'no-api-key' 'no-rate-limit' 'openapi':203 'page':187 'paid':9,23 'paramet':247 'pay':56 'pay-per-call API' 'pay-per-request':55 'payload':216 'payment':148,176 'paywal':46 'per':11,25,57,93,139 'per-cal':10,24 'platform':50 'post':251 'price':72,90,147 'probe':109 'prompt':194 'proper':227 'protocol':105 'provid':33 'quot':77 'rate':75,168 'receipt':5,19,38,215 'render':189 'request':58,94 'request/response':206 'requir':171 'resourc':39 'respond':224 'return':111,243 'schema':207 'scheme':155 'second':162 'sentiment':65 'settl':95 'sinc':130 'site':144 'span':60 'spars':180 'spec':204 'specif':107 'suit':53 'summar':67 'technic':198 'timeout':163 'token':76 'transact':4,18,37,40 'transaction receipt API' 'transaction-receipt' 'translat':136 'unit':123 'upon':175 'usdc':14,28,97,125,131 'usdc-settlement' 'use':132 'util':82 'valid':84,113 'via':102,151 'wallet':193 'x402':2,16,45,104,114,153 'x402 paid endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"6f70d6fa-bd5b-4bca-bf56-a84c256b1579","listingId":"f149a219-28d6-4ea5-8d8f-98d62cf1276a","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/transactions/108/receipt","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:58:21.958Z"}],"sources":[{"listingId":"f149a219-28d6-4ea5-8d8f-98d62cf1276a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/transactions/108/receipt","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:58:21.958Z","lastSeenAt":"2026-04-25T01:32:59.720Z"}],"details":{"listingId":"f149a219-28d6-4ea5-8d8f-98d62cf1276a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/transactions/108/receipt \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","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, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, which equals $0.02","source_url":"https://lowpaymentfee.com/api/v1/transactions/108/receipt"},{"claim":"Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving transaction receipt data for transaction 108 via a single paid API call","Programmatic access to paid API endpoints without managing API keys or subscriptions","Agent-driven workflows that need to pay-per-request for data retrieval on Base"],"bestFor":["Developers wanting keyless, pay-per-use API access settled in USDC on Base","AI agents that can autonomously pay for API calls via x402","Quick one-off data retrieval without subscription commitments"],"notFor":["Users needing detailed API documentation or response schema guarantees before integrating","High-volume use cases where per-request pricing may be less economical than a subscription","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:44.314Z"},"updatedAt":"2026-04-25T01:32:59.720Z"}}