{"id":"a930c46a-862a-4ab5-acdb-64d485a0ef13","shortId":"wLc5nt","kind":"x402","title":"Pay-per-call API platform on Base network via x402 — $0.02/request in USDC.","tagline":"Pay-per-call API platform on Base network via x402 — $0.02/request in USDC.","description":"lowpaymentfee.com is an x402-enabled API platform that offers a broad set of endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. Every endpoint is priced at $0.02 per request, paid in USDC on the Base network with no API keys, no rate limits, and no upfront commitments. The specific endpoint at `/api/v1/wire/150` is listed as \"Premium API Access\" and its x402 challenge advertises a max amount of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 given USDC's 6 decimals.\n\nThe platform advertises categories including Data & Analytics (metrics, reports, data export, insights), 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). However, the crawled documentation pages (`/docs`, `/api`, `/pricing`, `/README`) all returned only a \"Connect wallet\" prompt with no actual technical documentation, schemas, or example payloads. As a result, it is unclear what request body this specific `/api/v1/wire/150` endpoint expects or what it returns.\n\nThe endpoint is confirmed live: it returns a proper HTTP 402 x402 challenge with version 1, scheme \"exact\", and a 300-second payment timeout. Payment settles to address `0x1A2B…85F3` on Base. Without documentation or response examples, the actual functionality behind \"Premium API Access\" at this path remains opaque.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","no-api-key","no-rate-limit","json-response"],"categories":["api-platform","finance","ai"],"synonyms":["low payment fee","x402 api","pay per call api","usdc api","base network api","micropayment api","402 payment api"],"warnings":["All documentation pages (/docs, /api, /pricing, /README) returned no useful content — only 'Connect wallet' prompts.","No OpenAPI or schema available; request and response formats for /api/v1/wire/150 are unknown.","The specific functionality behind 'Premium API Access' at /api/v1/wire/150 is not described anywhere in the crawled material.","The broad category claims (AI, analytics, finance, utilities) on the landing page cannot be independently verified."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/150","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/wire/150","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but all documentation pages are empty (showing only 'Connect wallet'). There is no OpenAPI schema, no request/response examples, and the purpose of '/api/v1/wire/150' specifically is undocumented. The listing is effectively a stub with confirmed liveness.","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":"2026-04-19T14:47:39.013Z","embedding":[-0.008560181,-0.046661377,0.01902771,0.0058174133,0.002073288,-0.020629883,-0.017059326,0.027130127,0.064697266,-0.06774902,0.03173828,-0.04324341,-0.036834717,-0.04067993,-0.009651184,0.025863647,0.0038928986,0.016616821,-0.0317688,0.02798462,0.023513794,-0.020355225,-0.015289307,0.02659607,-0.008117676,-0.004764557,-0.009979248,0.0048332214,-0.01537323,-0.040039062,0.049194336,-0.024597168,-0.005378723,0.010910034,-0.031341553,-0.00089740753,0.00071144104,0.034057617,0.018356323,-0.008644104,-0.009269714,-0.059265137,0.0071144104,-0.021575928,-0.04559326,-0.0012254715,-0.011207581,0.0034942627,0.0124435425,-0.0056915283,-0.03253174,-0.0040359497,0.0038261414,0.0036239624,-0.0034599304,0.015716553,0.0045166016,-0.0062217712,0.0028858185,0.007598877,-0.010520935,-0.055114746,-0.015853882,-0.013961792,0.012237549,0.06298828,-0.011138916,0.04296875,0.029067993,0.064331055,0.03881836,0.066589355,0.03717041,-0.0011024475,-0.00038290024,-0.019927979,0.0008659363,0.039001465,-0.01751709,-0.01914978,-0.02760315,-0.020187378,-0.056854248,-0.00042963028,-0.018997192,-0.043640137,-0.028808594,0.0141067505,-0.019729614,0.018249512,-0.07897949,0.0030975342,-0.006916046,-0.004589081,0.0068893433,-0.0077590942,-0.012397766,0.018661499,-0.013305664,0.024627686,0.00034356117,-0.03842163,0.00970459,0.010604858,0.026535034,0.042419434,0.034118652,0.018051147,-0.009506226,-0.005756378,-0.02407837,0.007587433,-0.014404297,-0.0025024414,0.022460938,-0.0027942657,-0.0067634583,0.017852783,-0.0016469955,0.036743164,-0.044311523,0.045684814,0.002878189,-0.014518738,0.0011835098,-0.032928467,-0.014678955,0.011054993,-0.00944519,0.003288269,0.017410278,0.016311646,0.027679443,-0.017974854,-0.029922485,0.024536133,-0.035247803,-0.011657715,-0.039978027,-0.024871826,0.036132812,-0.024475098,0.02053833,0.029541016,-0.070739746,-0.0045280457,-0.032409668,0.004436493,-0.032928467,-0.010009766,-0.0027751923,0.036895752,-0.022537231,-0.012145996,-0.015571594,-0.025283813,-0.0035476685,0.036743164,-0.020996094,0.034729004,-0.014549255,0.019058228,0.0029888153,0.013542175,0.022262573,0.035339355,0.0050354004,-0.08093262,-0.08282471,-0.019348145,0.00024867058,-0.02468872,-0.034088135,0.019714355,0.008049011,-0.06976318,-0.012481689,-0.020126343,-0.00086688995,-0.047790527,0.0031356812,-0.02696228,0.009712219,-0.0016202927,-0.077941895,-0.027740479,-0.02571106,0.06262207,0.029205322,0.009384155,0.03326416,-0.010482788,0.055847168,0.026611328,-0.010894775,-0.01197052,0.021972656,-0.024124146,0.025650024,-0.0020751953,0.01235199,-0.0385437,0.036193848,0.06402588,0.007205963,-0.0033302307,-0.020050049,-0.06854248,-0.04397583,-0.029342651,0.029205322,-0.005607605,0.024093628,0.040374756,-0.029846191,-0.05331421,0.017211914,0.0007996559,0.0087509155,0.0579834,0.00932312,0.00035524368,0.019638062,0.025741577,-0.05126953,0.039367676,0.031173706,0.010986328,-0.020355225,-0.015930176,0.027664185,0.036712646,-0.016708374,0.010215759,-0.0076179504,0.036865234,-0.00970459,0.014961243,0.023452759,-0.019012451,-0.028930664,-0.03475952,-0.014053345,0.033477783,-0.00021588802,-0.02746582,-0.033569336,-0.070129395,0.026123047,0.046875,0.037078857,-0.008293152,0.016403198,-0.018051147,-0.012649536,-0.06939697,0.05557251,0.05899048,0.0062179565,-0.021759033,0.03125,-0.0015134811,-0.032684326,0.009124756,-0.000020623207,-0.037506104,0.0027160645,0.0010147095,-0.038238525,0.0011940002,0.012191772,0.0289917,0.058410645,-0.022033691,-0.054473877,-0.024612427,0.0082473755,0.019897461,-0.027175903,0.006465912,-0.005214691,0.010620117,0.009674072,0.0038070679,0.005306244,0.009101868,-0.009994507,0.0012454987,0.0019760132,-0.02229309,-0.03050232,0.015090942,-0.0061073303,-0.06414795,0.009780884,0.0049362183,0.06774902,-0.04345703,0.054779053,-0.018203735,0.014709473,0.047790527,-0.0052223206,-0.042419434,0.014297485,0.033111572,0.016189575,0.054107666,0.012275696,-0.0340271,-0.0020980835,0.07342529,-0.012191772,-0.016677856,0.0062065125,0.0071029663,0.04611206,-0.009994507,-0.064941406,-0.035980225,0.0031795502,-0.02760315,0.035736084,-0.03137207,0.025634766,-0.014152527,0.017028809,-0.016921997,-0.00031018257,-0.040893555,0.0005965233,-0.0010519028,0.017227173,-0.01537323,-0.020126343,0.014930725,-0.0158844,-0.0070266724,0.0018148422,0.057922363,0.01612854,0.005180359,-0.04208374,-0.03652954,-0.014839172,-0.0014410019,0.023605347,0.019500732,0.024093628,0.055786133,-0.03604126,0.012046814,0.025100708,0.024368286,0.039001465,-0.0026683807,0.0075531006,-0.068725586,-0.05899048,-0.03225708,-0.053710938,0.028884888,0.0018997192,0.0059013367,0.044830322,0.02810669,-0.021575928,-0.036712646,0.02079773,-0.04324341,-0.008430481,0.049438477,-0.012184143,-0.030532837,0.012367249,0.0073547363,-0.0047416687,0.032287598,0.013870239,0.041503906,0.07952881,0.049102783,0.002029419,0.01826477,-0.0040359497,0.025970459,0.009529114,-0.016784668,-0.027816772,-0.020645142,0.04244995,-0.018630981,-0.018341064,-0.08117676,0.06573486,0.025177002,0.08898926,0.018173218,0.017822266,0.034729004,-0.01890564,-0.007205963,-0.04510498,-0.019042969,-0.008560181,-0.047424316,0.036987305,-0.020324707,-0.0043144226,-0.024734497,0.029342651,-0.011070251,0.020446777,-0.013061523,0.04824829,-0.0211792,-0.0037174225,0.025650024,0.012130737,0.038848877,0.05493164,-0.040802002,0.017028809,0.02760315,-0.01889038,0.0052871704,0.03265381,-0.019302368,0.0116119385,-0.06329346,-0.014732361,-0.011222839,-0.013946533,-0.04776001,0.0055389404,0.002155304,0.016281128,0.032165527,-0.008666992,-0.021896362,-0.011039734,-0.009315491,-0.04220581,0.013221741,-0.031463623,0.009963989,0.034057617,-0.014305115,-0.011657715,0.0061187744,-0.011436462,-0.027053833,0.009681702,0.022094727,-0.001791954,-0.041381836,0.04660034,0.0047340393,0.0036239624,0.0062828064,0.020950317,0.0118255615,0.025421143,0.047698975,0.011650085,-0.033111572,-0.066833496,0.01828003,-0.05255127,0.012931824,0.017440796,-0.021255493,-0.004096985,-0.019866943,-0.02746582,-0.02583313,0.035583496,-0.008605957,0.021026611,0.008857727,-0.035705566,-0.029571533,-0.03741455,-0.018051147,-0.011802673,0.06137085,0.025543213,-0.0048675537,-0.06665039,-0.0068473816,0.010643005,0.013832092,0.028213501,-0.015090942,-0.0036907196,-0.022460938,-0.03579712,-0.0039253235,-0.03186035,0.020111084,-0.003627777,0.0006375313,0.033172607,-0.0038833618,0.026138306,0.008522034,0.0057144165,0.032318115,-0.03918457,-0.016784668,-0.015289307,0.048065186,0.006511688,0.007499695,-0.052368164,0.043701172,0.031433105,0.036895752,-0.034057617,0.0018415451,-0.007843018,0.0041007996,0.0075416565,-0.011444092,-0.006454468,0.0026474,-0.03744507,-0.06329346,0.039245605,0.00040602684,0.026535034,0.018569946,-0.0042686462,0.021408081,0.0003247261,0.0018634796,0.02029419,-0.025131226,0.00045466423,-0.013687134,-0.030029297,-0.0154800415,-0.023391724,-0.022323608,0.018173218,-0.014640808,0.0065956116,-0.0010871887,-0.022094727,0.03265381,0.00737381,-0.010520935,0.020767212,-0.0027923584,0.021743774,0.038604736,0.0030326843,-0.05505371,0.014671326,0.0064926147,0.011306763,-0.005970001,0.041625977,0.02545166,0.0030593872,-0.005569458,-0.006504059,-0.0141067505,-0.01876831,-0.0019378662,0.01651001,0.014053345,0.006248474,-0.041412354,0.021270752,0.002576828,-0.05026245,-0.014404297,0.011199951,0.0053634644,-0.037017822,0.011657715,0.022064209,0.049713135,-0.017745972,-0.0022201538,-0.00060272217,0.022872925,0.03366089,0.013923645,-0.006866455,0.020553589,-0.0071411133,0.014213562,-0.008529663,-0.017547607,0.01953125,0.005191803,0.022064209,0.029144287,0.008972168,-0.034698486,-0.025482178,0.00086021423,-0.017959595,-0.017852783,0.015914917,0.026748657,0.020690918,-0.019561768,0.011528015,0.015960693,-0.02355957,-0.0041007996,-0.007461548,0.04638672,-0.022598267,-0.010803223,0.0112838745,0.009529114,0.020431519,-0.046325684,-0.0118255615,0.012863159,-0.004901886,-0.021987915,-0.04385376,-0.039733887,0.016204834,0.039215088,0.0070228577,0.004802704,0.03265381,0.0028209686,0.0016822815,0.03302002,-0.0020809174,-0.02281189,-0.013961792,-0.03866577,-0.014427185,-0.013832092,-0.013656616,-0.038513184,0.015808105,-0.017074585,-0.035949707,0.0015954971,-0.0017900467,-0.0029125214,-0.00340271,0.016403198,0.04437256,0.010986328,0.018310547,-0.016479492,-0.044311523,-0.009346008,0.0015153885,0.0033054352,-0.041107178,0.019088745,-0.017333984,-0.00598526,0.009742737,0.011505127,0.015571594,0.019241333,0.012786865,0.024673462,-0.048339844,0.048187256,-0.02507019,0.007724762,0.0049362183,-0.05331421,-0.0027046204,-0.011199951,-0.0096206665,0.03717041,-0.028427124,-0.009498596,-0.031173706,-0.038208008,-0.012176514,-0.042022705,0.036956787,0.045806885,0.032714844,-0.02557373,0.006881714,0.0051994324,0.0037136078,-0.021255493,0.000119268894,-0.029022217,0.029571533,0.01525116,0.004207611,-0.042541504,-0.024368286,-0.016998291,0.0059547424,-0.040252686,-0.047332764,-0.014854431,-0.0038070679,-0.009780884,0.0023612976,-0.025054932,-0.031173706,-0.009140015,-0.050109863,0.01197052,0.015609741,0.021530151,0.011528015,-0.02079773,-0.006362915,0.010955811,-0.014266968,0.028213501,-0.0046463013,-0.012283325,-0.052612305,0.0126953125,0.01701355,0.03704834,0.00592041,-0.016311646,-0.008911133,-0.012702942,-0.05316162,-0.004787445,-0.010986328,-0.011184692,-0.016448975,-0.0018339157,-0.053649902,-0.007873535,-0.013320923,0.006187439,0.012039185,0.012702942,0.007949829,-0.008460999,0.0096206665,-0.0025348663,-0.017715454,-0.027786255,0.014511108,0.011421204,0.00039100647,0.026748657,0.04498291,0.006542206,-0.027008057,-0.0013608932,0.010795593,0.0053482056,-0.032928467,0.0064697266,-0.016815186,-0.00076055527,-0.012008667,-0.015777588,-0.033203125,-0.008094788,0.09265137,0.0034866333,-0.027389526,-0.005470276,-0.016860962,0.018844604,0.021987915,-0.034851074,-0.0141067505,-0.020629883,0.027420044,-0.01247406,0.0158844,-0.0001834631,0.013442993,-0.020202637,-0.04522705,-0.020462036,-0.00831604,-0.015586853,-0.0670166,-0.03125,-0.07342529,0.006855011,0.0020980835,-0.012489319,0.011138916,0.010414124,-0.023376465,-0.101379395,0.016403198,0.055419922,0.0063323975,0.016525269,-0.015548706,0.012870789,0.024627686,-0.036956787,0.0068626404,0.037384033,-0.02142334,-0.022277832,-0.019805908,0.023849487,-0.015640259,-0.0071144104,0.010269165,0.009132385,0.024139404,-0.014984131,0.020431519,-0.003993988,0.024414062,-0.017730713,0.010971069,-0.020874023,-0.016601562,0.043792725,-0.06390381,0.020431519,0.013298035,0.0047416687,0.0053977966,0.03378296,0.032806396,-0.043701172,-0.013465881,0.02319336,0.0028190613,0.025283813,-0.019699097,0.03878784,0.011917114,-0.017608643,0.032165527,-0.015777588,-0.019836426,-0.025054932,-0.029708862,0.019119263,-0.00066947937,0.013671875,-0.024246216,-0.010093689,0.01965332,-0.003063202,0.01537323,-0.004432678,-0.02645874,-0.010726929,0.004333496,0.017242432,-0.006336212,-0.00030064583,0.032989502,0.03491211,0.021850586,0.013374329,-0.016220093,-0.009468079,0.016723633,-0.014518738,0.0052833557,0.031585693,0.0033111572,0.024154663,0.0009417534,0.025466919,-0.037322998,-0.016723633,-0.027496338,-0.028320312,-0.008918762,-0.015899658,-0.018600464,-0.0048599243,0.005645752,-0.0027103424,-0.02909851,0.0025482178,-0.028533936,-0.017974854,-0.013214111,-0.017410278,0.036621094,0.0035572052,0.0060920715,-0.002073288,0.002729416,0.04244995,0.0011425018,-0.008728027,0.0256958,0.02519226,0.018539429,-0.03427124,-0.0013170242,-0.0068740845,0.0017633438,-0.0034637451,-0.0345459,0.0031776428,0.046051025,-0.020584106,0.013893127,-0.0005502701,0.013633728,-0.008903503,0.0014352798,-0.016647339,0.015823364,-0.0055122375,0.02810669,-0.04046631,0.022521973,0.01876831,-0.0138549805,-0.017181396,-0.009971619,-0.024932861,0.023742676,0.00044965744,-0.012466431,0.04888916,-0.0015382767,0.031982422,-0.022827148,-0.023284912,0.0019378662,-0.024291992,-0.024291992,0.029281616,-0.01184845,0.00881958,0.0154418945,-0.025238037,0.031341553,-0.037353516,0.018295288,-0.013832092,0.0028896332,-0.0036296844,-0.022232056,-0.008178711,-0.0077590942,-0.022201538,0.015037537,-0.000647068,0.056274414,0.022781372,0.04067993,0.05038452,0.022323608,-0.010108948,-0.040161133,-0.014823914,-0.0018234253,-0.019302368,0.027557373,-0.022918701,0.061767578,0.02798462,-0.0052948,0.025009155,0.046661377,0.0340271,0.005645752,0.005580902,-0.009475708,0.010292053,-0.008285522,0.025741577,0.0044784546,0.035308838,-0.024658203,0.034179688,0.013801575,0.020004272,-0.027313232,0.022567749,0.074645996,0.022766113,-0.014907837,0.05041504,-0.01449585,-0.009681702,-0.0019130707,-0.021026611,0.04156494,0.0026054382,0.051361084,0.042114258,0.020629883,-0.0030078888,0.029281616,-0.020645142,-0.027420044,0.0524292,0.023498535,-0.008903503,-0.0056877136,-0.0058784485,0.0020370483,-0.05368042,-0.023544312,0.023635864,-0.017333984,0.016662598,-0.01687622,0.0044555664,-0.017669678,0.008201599,0.0048294067,0.015533447,-0.012962341,0.027557373,0.03152466,0.0055236816,0.02848816,0.00756073,0.021759033,-0.027816772,-0.028060913,0.017059326,0.015449524,-0.006248474,-0.003156662,0.021347046,0.019638062,0.03164673,0.043395996,-0.017105103,0.017578125,0.030563354,0.020080566,-0.00868988,0.051208496,0.032409668,0.0022144318,0.033691406,0.033447266,0.021270752,-0.037078857,0.025100708,-0.008239746,0.019897461,-0.0049057007,-0.010116577,-0.0033073425,-0.0129852295,0.013694763,-0.012886047,-0.022445679,0.017562866,0.0289917,-0.0063476562,-0.0074882507,-0.014694214,0.0029773712,-0.010025024,-0.0055770874,0.00932312,-0.0138549805,0.04019165,-0.0022296906,0.019500732,-0.021652222,0.021850586,-0.0066490173,-0.008666992,-0.014205933,0.03579712,-0.04336548,0.0124435425,-0.0071487427,0.0053482056,-0.04949951,0.004749298,0.032989502,-0.0033111572,0.017547607,0.011962891,-0.0011577606,-0.005706787,0.026855469,0.0063438416,0.0015859604,-0.008300781,-0.03111267,0.02633667,0.050964355,-0.003364563,0.0059165955,-0.028823853,-0.0039024353,-0.003168106,-0.020233154,-0.015388489,0.009010315,-0.023727417,-0.02859497,0.026443481,0.029632568,0.027999878,0.054992676,-0.013183594,-0.005748749,0.012191772,0.0418396,0.0067100525,-0.010505676,-0.012802124,0.01939392,-0.0107040405,0.056762695,0.025100708,0.0075263977,0.03378296,-0.005809784,-0.030136108,-0.0018634796,-0.01966858,0.03375244,-0.012229919,0.009124756,-0.011329651,0.029785156,-0.012512207,-0.034423828,0.018096924,-0.016189575,-0.019348145,-0.017532349,-0.00095415115,0.0040512085,0.03125,0.038146973,0.025817871,-0.024642944,0.0657959,-0.010681152,0.056762695,0.0060195923,-0.0016269684,0.050628662,0.015090942,0.037109375,0.021469116,0.0044555664,-0.040374756,0.017105103,0.031433105,0.024002075,0.01651001,0.008773804,-0.031341553,0.034576416,0.0021018982,0.039154053,-0.011566162,0.0016651154,0.008392334,0.002412796,0.0014648438,0.0011806488,-0.006210327,0.008758545,0.040863037,-0.025390625,-0.009521484,-0.019821167,-0.013015747,0.029144287,-0.009017944,-0.00047826767,-0.0066108704,-0.012664795,0.02305603,-0.020385742,-0.025466919,-0.0020198822,0.025100708,-0.054016113,-0.023269653,0.013938904,0.021575928,-0.020706177,0.038330078,0.02355957,0.0073661804,0.0016450882,0.04309082,-0.013084412,0.03125,-0.022476196,0.014923096,0.027923584,0.0044288635,-0.0178833,0.0025577545,0.006126404,-0.015533447,0.020950317,0.039978027,0.0055770874,-0.00086832047,0.009117126,-0.0053138733,0.0045928955,0.006549835,-0.01739502,0.016220093,-0.008049011,-0.013122559,-0.004875183,0.0012683868,-0.0066986084,0.014678955,-0.01828003,-0.015426636,0.005935669,0.038391113,0.011894226,-0.03652954,0.0035800934,0.010101318,0.012435913,-0.024841309,-0.017227173,0.0036029816,-0.029281616,0.00907135,0.014801025,-0.00019335747,0.0076522827,-0.021621704,-0.009292603,0.019592285,0.0061683655,0.016479492,0.005264282,-0.011787415,0.025787354,-0.014945984,-0.0026187897,-0.012107849,-0.01637268,0.009803772,0.03302002,0.00014829636,-0.028167725,0.025268555,-0.0021247864,0.010292053,-0.0056762695,-0.011146545,0.014625549,-0.0087890625,0.008087158,0.0007624626,0.016143799,-0.0132751465,-0.0124435425,-0.012687683,0.033081055,0.045074463,-0.01713562,-0.013298035,0.0158844,0.028244019,0.014762878,0.044158936,0.0028438568,0.048461914,0.01725769,-0.020507812,-0.02734375,0.027114868,-0.008911133,-0.020950317,0.015083313,-0.017654419,-0.012390137,0.014457703,0.0138168335,0.0028705597,-0.03302002,-0.012527466,-0.0072135925,-0.008857727,0.013885498,-0.02229309,0.011070251,-0.026031494,-0.0057373047,0.013473511,-0.017333984,-0.046875,-0.024551392,-0.0053596497,-0.016906738,-0.047302246,0.0026607513,-0.027893066,0.0102005005,-0.017745972,0.0034866333,-0.0033626556,0.015090942,-0.015838623,0.00356102,0.026153564,0.025787354,0.026550293,0.008674622,0.028564453,-0.027160645,-0.020904541,-0.017593384,0.00308609,-0.0058288574,0.015609741,0.0041007996,0.04147339,0.022918701,-0.0030765533,-0.0014104843,-0.01486969,-0.0015001297,-0.019943237,-0.018096924,-0.03552246,0.023132324,0.015731812,-0.0042800903,-0.021575928,0.047546387,-0.034484863,-0.014266968,0.018814087,0.05206299,0.0043029785,0.027893066,-0.01651001,-0.0020637512,-0.017150879,0.00082731247,-0.008071899,-0.010360718,-0.00090169907,-0.000603199,-0.0075416565,0.0026073456,0.027450562,-0.013885498,-0.013053894,0.021530151,-0.0039711,-0.015670776,0.035888672,0.014083862,0.0010194778,-0.011291504,-0.02154541,0.012313843,0.042022705,0.013641357,0.0033187866,-0.0098724365,0.0059280396,-0.013420105,0.004207611,0.014083862,-0.01838684,-0.043640137,-0.019226074,-0.020355225,0.025360107,0.006954193,0.012550354,-0.0017738342,0.005290985,-0.022369385,-0.017150879,-0.030395508,0.029632568,0.014457703,-0.006210327,-0.0054969788,0.0046195984,0.014404297,-0.041870117,-0.00712204,-0.05984497,-0.031829834,-0.0017538071,-0.032287598,0.03137207,0.00027751923,-0.0052108765,0.0061073303,0.001704216,-0.00007969141,0.0033054352,0.034301758,-0.018463135,-0.00995636,0.033477783,0.016296387,-0.022598267,0.013633728,-0.022476196,-0.00356102,0.012420654,0.000011742115,0.01586914,-0.024642944,0.032928467,-0.0070762634,-0.022277832,0.031280518,-0.008850098,0.012123108,-0.01979065,0.005001068,0.0035972595,-0.004634857,0.035003662,-0.026733398,-0.019561768,-0.0023345947,-0.007381439,-0.026641846,0.009590149,0.019500732,0.01966858,0.013267517,0.03741455,-0.018157959,-0.019073486,0.011451721,0.0047302246,-0.026763916,0.0042037964,0.028884888,-0.0058021545,0.009010315,0.003540039,-0.008598328,-0.027740479,-0.01424408,0.020401001,-0.00504303,-0.0045433044,0.029067993,0.020889282,0.051208496,0.0025234222,0.006664276,0.020812988,-0.006538391,0.032592773,0.0077400208,0.07171631,-0.0045318604,-0.03591919,0.016860962,0.0044822693,-0.02633667,-0.010520935,-0.011138916,0.0031967163,-0.047821045,0.020568848,-0.011299133,0.020889282,-0.008766174,0.01020813,-0.019500732,0.00076293945,-0.03579712,-0.004901886,-0.037109375,0.012962341,0.036834717,0.014572144,0.028320312,0.0017766953,-0.01876831,0.01902771,0.047698975,-0.00068187714,-0.039794922,-0.026855469,0.010688782,-0.004638672,0.021224976,0.015304565,-0.016540527,-0.012107849,0.0045700073,-0.017318726,0.0046958923,-0.014465332,0.0110321045,0.010894775,-0.009231567,-0.013519287,0.027175903,-0.0061187744,0.0045204163,0.00983429,0.010246277,0.028884888,0.025482178,-0.022583008,0.010108948,0.018371582,-0.022262573,0.053131104,0.0065307617,0.025115967,-0.022583008,0.002231598,-0.04977417,-0.024261475,-0.018371582,0.014656067],"createdAt":"2026-04-18T19:28:42.300Z","updatedAt":"2026-04-22T07:01:43.816Z","lastSeenAt":"2026-04-22T07:01:43.816Z","tsv":"'/api':163 '/api/v1/wire/150':86,193 '/docs':162 '/pricing':164 '/readme':165 '/request':13,28 '0.02':12,27,61,113 '000':103 '0x1a2b':228 '0x8335':108 '1':215 '20':102 '300':220 '402':210 '402 payment api' '6':117 '85f3':229 'access':92,243 'actual':175,238 'address':227 'advertis':97,121 'ai':131 'ai/ml':49 'amount':100 'analysi':135 'analyt':48,125 'api':5,20,37,73,91,242 'base':8,23,69,104,110,231 'base network api' 'behind':240 'bodi':190 'broad':42 'call':4,19 'categori':122 'challeng':96,212 'classif':138 'commit':81 'confirm':203 'connect':170 'convers':155 'crawl':159 'data':47,52,124,128 'decim':118 'document':160,177,233 'embed':139 'enabl':36 'endpoint':45,57,84,194,201 'equal':112 'estim':149 'everi':56 'exact':217 'exampl':180,236 'exchang':144 'expect':195 'export':129 'feed':143 'financ':140 'finance/web3':51 'function':239 'gas':148 'generat':156 'geocod':153 'given':114 'howev':157 'http':209 'includ':123 'infer':50 'infrastructur':151 'insight':130 'json-response' 'key':74 'learn':133 'limit':77 'list':88 'live':204 'low payment fee' 'lowpaymentfee.com':31 'machin':132 'max':99 'metric':126 'micropayment api' 'network':9,24,70 'no-api-key' 'no-rate-limit' 'offer':40 'opaqu':248 'page':161 'paid':64 'path':246 'pay':2,17 'pay per call api' 'pay-per-cal':1,16 'pay-per-request' 'payload':181 'payment':222,224 'per':3,18,62 'platform':6,21,38,120 'premium':90,241 'price':59,142 'prompt':172 'proper':208 'quot':147 'rate':76,145 'remain':247 'report':127 'request':63,189 'respons':235 'result':184 'return':167,199,206 'schema':178 'scheme':216 'second':221 'sentiment':134 'servic':55 'set':43 'settl':225 'span':46 'specif':83,192 'summar':137 'technic':176 'text':136 'timeout':223 'token':146 'unclear':187 'unit':105 'upfront':80 'usdc':15,30,66,107,115 'usdc api' 'usdc-base' 'util':54,152 'valid':154 'version':214 'via':10,25 'wallet':171 'web3':141 'without':232 'x402':11,26,35,95,211 'x402 api' 'x402-enabled':34 'x402-payment'","prices":[{"id":"305ca58d-eacf-47b2-9016-5f81f66455c8","listingId":"a930c46a-862a-4ab5-acdb-64d485a0ef13","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/wire/150","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:42.300Z"}],"sources":[{"listingId":"a930c46a-862a-4ab5-acdb-64d485a0ef13","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/150","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:42.300Z","lastSeenAt":"2026-04-22T07:01:43.816Z"}],"details":{"listingId":"a930c46a-862a-4ab5-acdb-64d485a0ef13","quickStartSnippet":"# The endpoint requires an X-PAYMENT header with a valid x402 payment proof.\n# Using curl (you need an x402-compatible client to generate the header):\ncurl -X POST https://lowpaymentfee.com/api/v1/wire/150 \\\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 HTTP 402 with x402 version 1 challenge, scheme 'exact', on Base network with USDC asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/150"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/wire/150"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Platform lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /api, /pricing, /README) contain only 'Connect wallet' with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Paying per-call for API access without managing API keys or subscriptions","Integrating USDC micropayments into automated agent workflows on Base","Accessing analytics, AI inference, or financial data endpoints on demand"],"bestFor":["Agents or developers wanting zero-commitment, pay-as-you-go API access","x402-compatible wallets and clients on the Base network","Low-volume or bursty workloads where per-request pricing is economical"],"notFor":["Users who need detailed API documentation or guaranteed SLAs before integrating","High-volume production workloads where $0.02/request adds up significantly","Users without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.444Z"},"updatedAt":"2026-04-22T07:01:43.816Z"}}