{"id":"d56a0e0d-8803-4d78-a484-33fed10a29ec","shortId":"ZucWRP","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 collection of endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints are paid per-request using USDC on the Base network at $0.02 per call, with no API keys, no rate limits, and no minimum commitments required.\n\nThe specific endpoint at `/api/v1/accounts/70` is listed as \"Premium API Access\" and accepts POST requests. The x402 challenge confirms it is live, requesting up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is settled on-chain to the specified payTo address.\n\nThe broader platform advertises endpoints across four categories: 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 (geocoding, validation, conversion, generation). However, the crawled documentation pages (docs, pricing, README) all returned only a \"Connect wallet\" prompt with no substantive content, so the actual functionality, request/response schemas, and data sources behind these endpoints remain undocumented and unverifiable.","tags":[],"capabilities":["x402-payment","per-request-billing","usdc-base-network","no-api-key","post-endpoint","pay-per-use"],"categories":["api-platform","data","ai"],"synonyms":["low payment fee","x402 api","micropayment api","pay per call api","usdc api","base network api","lowpaymentfee"],"warnings":["No documentation available — all doc pages return only 'Connect wallet' with no content","No request or response schema provided; unclear what data this endpoint returns","The endpoint path '/api/v1/accounts/70' with description 'Premium API Access' gives no indication of its actual functionality","Cannot verify any of the advertised capabilities (AI, analytics, finance, etc.) due to lack of documentation"],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/70","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/70","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 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no request/response schema, and no explanation of what 'Premium API Access' at /api/v1/accounts/70 actually returns. All doc/pricing/README pages show only 'Connect wallet' with no content. 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":"2026-04-19T00:45:10.248Z","embedding":[-0.02218628,-0.028884888,0.0446167,0.027893066,0.012741089,-0.03756714,-0.022827148,0.021453857,0.07196045,-0.060394287,0.031402588,-0.048553467,-0.037353516,-0.031585693,-0.015640259,0.02029419,-0.010368347,0.009597778,-0.036590576,0.03125,0.025115967,-0.013259888,-0.02078247,0.026992798,-0.0025730133,-0.014350891,-0.013748169,-0.009811401,-0.015945435,-0.041625977,0.04788208,-0.027862549,-0.0060539246,0.023620605,-0.0048294067,-0.009170532,-0.004184723,0.04043579,0.033416748,-0.002248764,-0.0074386597,-0.051605225,0.009239197,-0.0059318542,-0.06677246,0.0014705658,0.003446579,-0.019134521,0.009986877,0.00856781,-0.035339355,-0.0023269653,0.011985779,-0.006504059,0.0017938614,0.012756348,0.0030918121,-0.005367279,0.007144928,0.024154663,-0.016204834,-0.05630493,-0.011016846,-0.002872467,0.0010948181,0.05908203,-0.0012836456,0.039886475,0.010482788,0.06854248,0.027633667,0.057250977,0.04046631,0.01687622,-0.0023727417,-0.014663696,-0.006843567,0.05593872,-0.011802673,-0.030548096,-0.005367279,-0.018661499,-0.05734253,-0.008132935,-0.013496399,-0.042022705,-0.023422241,0.020095825,-0.028396606,0.034179688,-0.0619812,0.0031776428,-0.017913818,-0.0015115738,0.01777649,-0.004261017,-0.0036315918,0.012466431,-0.007247925,0.014076233,0.009590149,-0.04067993,0.023895264,-0.005466461,0.03829956,0.057739258,0.028442383,0.015716553,0.0062294006,-0.005706787,-0.027389526,0.012420654,-0.012687683,-0.019363403,0.021835327,-0.0073928833,-0.0046195984,0.009757996,-0.036102295,0.012428284,-0.041534424,0.054473877,0.0060768127,0.012512207,0.015022278,-0.040130615,-0.009307861,0.009010315,-0.029388428,-0.0036563873,-0.0021591187,0.009605408,0.033416748,-0.015037537,-0.027282715,0.012214661,-0.025848389,-0.015365601,-0.048583984,-0.030914307,0.05050659,-0.033447266,0.016418457,0.035827637,-0.09460449,-0.012214661,-0.05041504,0.0027885437,-0.026916504,-0.013969421,-0.0009455681,0.017944336,-0.014076233,-0.012329102,-0.031097412,-0.023162842,0.002664566,0.04083252,-0.012565613,0.05126953,-0.013511658,0.024398804,0.024429321,0.011062622,0.015426636,0.028625488,-0.0047454834,-0.07757568,-0.088012695,-0.022354126,-0.008583069,-0.017166138,-0.01914978,0.0062408447,-0.006137848,-0.0725708,-0.010269165,-0.013389587,-0.0059776306,-0.039978027,0.00090026855,-0.020233154,0.016983032,-0.014602661,-0.06903076,-0.0121154785,-0.023254395,0.060516357,0.02709961,0.032104492,0.01902771,-0.011428833,0.060760498,0.04147339,-0.0067100525,-0.0110321045,0.023025513,-0.01675415,0.016601562,-0.006034851,0.01763916,-0.028396606,0.03527832,0.07495117,0.010421753,-0.02229309,-0.0076942444,-0.053894043,-0.049438477,-0.033233643,0.017059326,0.012611389,0.004257202,0.03692627,-0.03491211,-0.03540039,0.0033397675,0.023406982,0.012382507,0.062072754,0.009719849,-0.011749268,0.035125732,0.01914978,-0.057739258,0.040130615,0.03894043,0.009422302,-0.01727295,-0.030410767,0.035980225,0.033050537,-0.021591187,0.019973755,-0.017105103,0.029891968,-0.009963989,0.0181427,0.015945435,-0.011505127,-0.026519775,-0.023864746,-0.03074646,0.021484375,0.008453369,-0.017578125,-0.028518677,-0.08850098,0.035095215,0.04019165,0.034301758,-0.0062026978,0.014770508,-0.018753052,-0.0048065186,-0.0637207,0.060455322,0.06713867,0.00077056885,-0.016937256,0.025375366,-0.012748718,-0.035095215,-0.00016987324,-0.0115356445,-0.035949707,-0.021057129,0.025161743,-0.054626465,-0.0049438477,0.011016846,0.018005371,0.044891357,-0.020767212,-0.043762207,-0.013542175,-0.0056152344,0.010009766,-0.028213501,0.0061569214,-0.0061950684,0.018859863,0.030075073,0.0048980713,0.008583069,-0.014587402,-0.01134491,-0.0048942566,0.008392334,-0.011329651,-0.033599854,0.007255554,-0.005630493,-0.0524292,-0.0009870529,0.0024604797,0.06719971,-0.04711914,0.031219482,-0.009284973,0.015098572,0.04949951,-0.015701294,-0.051940918,0.012802124,0.025024414,0.020065308,0.050994873,0.022476196,-0.025894165,-0.012588501,0.070495605,-0.0053901672,-0.012191772,0.02444458,0.016799927,0.036315918,-0.015716553,-0.062805176,-0.0390625,-0.0021362305,-0.03137207,0.013153076,-0.026031494,0.031066895,-0.013839722,0.020111084,-0.022964478,-0.0052948,-0.033966064,0.015548706,-0.0036907196,0.0061073303,-0.016799927,-0.0206604,0.017364502,0.0076408386,-0.011077881,0.0015001297,0.04083252,0.014167786,-0.008163452,-0.029281616,-0.031982422,-0.0047340393,-0.00566864,0.015083313,0.01927185,0.015808105,0.053497314,-0.02998352,-0.0075645447,0.031036377,0.010505676,0.03286743,-0.004928589,-0.0063934326,-0.06768799,-0.05331421,-0.019226074,-0.03869629,0.021865845,0.030960083,-0.008102417,0.05078125,0.00207901,-0.025222778,-0.04321289,0.01889038,-0.032928467,0.009765625,0.0491333,-0.016815186,-0.021331787,-0.00022876263,0.0031204224,0.008964539,0.028778076,0.021499634,0.03363037,0.08093262,0.040130615,0.016296387,0.008300781,0.0039863586,0.038238525,0.0041389465,-0.016571045,-0.034088135,-0.010246277,0.032318115,-0.017456055,-0.015335083,-0.07080078,0.06817627,0.022735596,0.095947266,0.022445679,0.0013246536,0.042114258,-0.03451538,0.015792847,-0.039489746,-0.037017822,-0.025787354,-0.038604736,0.02935791,-0.020462036,-0.0032806396,-0.021469116,0.031555176,-0.005306244,0.016708374,-0.027755737,0.04284668,-0.0077590942,-0.019058228,0.014892578,0.014198303,0.051452637,0.05709839,-0.04928589,0.032470703,0.020462036,-0.02305603,0.0028266907,0.050048828,-0.017944336,-0.008117676,-0.057678223,-0.020874023,-0.00819397,-0.01449585,-0.043884277,-0.005065918,-0.0005850792,0.022094727,0.032440186,-0.006126404,-0.00415802,-0.011512756,-0.008239746,-0.056732178,-0.0037231445,-0.037628174,-0.0067825317,0.03286743,-0.02734375,-0.014526367,0.0019283295,-0.014526367,-0.01209259,0.013763428,0.024642944,-0.01071167,-0.0579834,0.040496826,0.004760742,0.009132385,0.0013465881,0.041259766,0.035186768,0.023956299,0.0440979,0.025314331,-0.004852295,-0.062042236,0.028259277,-0.049682617,0.010520935,0.037475586,-0.018203735,-0.0064697266,-0.007183075,-0.05117798,-0.029281616,0.015731812,-0.026428223,-0.0054397583,0.016860962,-0.019973755,-0.020904541,-0.050628662,-0.016311646,-0.007381439,0.056152344,0.024429321,0.0032176971,-0.05886841,-0.0021190643,0.014183044,0.012649536,0.027450562,-0.014717102,-0.003479004,-0.032928467,-0.028869629,-0.012809753,-0.018310547,0.029327393,-0.0029392242,-0.0018053055,0.018692017,0.013290405,0.025024414,0.005306244,0.004737854,0.02168274,-0.03326416,-0.0021877289,-0.0014476776,0.042510986,0.011581421,-0.004886627,-0.045684814,0.040283203,0.011016846,0.041137695,-0.04208374,0.0004787445,-0.0027046204,0.013305664,0.0178833,-0.008529663,-0.0063209534,-0.011886597,-0.047607422,-0.06213379,0.047180176,-0.024734497,0.024765015,0.021194458,0.00881958,0.02558899,-0.018844604,-0.0012464523,0.0155181885,-0.02998352,-0.0068092346,-0.020431519,-0.02293396,-0.017410278,-0.017349243,-0.020553589,0.011116028,-0.014839172,0.010696411,-0.0045547485,-0.020828247,0.013710022,0.0055389404,-0.00793457,0.019760132,-0.0050201416,0.024993896,0.04788208,0.016647339,-0.040527344,0.02456665,0.0032196045,0.0010843277,-0.0096588135,0.045806885,0.029388428,0.003791809,-0.011810303,-0.007827759,-0.017120361,-0.03277588,0.010688782,0.00554657,0.01158905,-0.006866455,-0.043518066,0.015167236,0.0044822693,-0.034332275,-0.02508545,0.015151978,0.007865906,-0.039489746,0.023223877,0.028442383,0.049316406,-0.027130127,0.0040359497,-0.00005722046,0.03463745,0.038085938,0.01184845,-0.0070266724,0.019744873,-0.016815186,0.010551453,-0.01247406,-0.02015686,0.01940918,0.010467529,0.023620605,0.018173218,0.0027980804,-0.020828247,-0.025405884,-0.0004930496,-0.016708374,-0.03189087,0.021743774,0.020812988,0.029571533,-0.033081055,0.019104004,0.004722595,-0.019119263,-0.0076293945,-0.007843018,0.041412354,-0.00920105,-0.014732361,0.021118164,0.018478394,0.023529053,-0.062286377,-0.006210327,0.006881714,0.016036987,-0.028366089,-0.049194336,-0.039886475,0.003824234,0.0418396,0.012634277,0.029907227,0.027160645,0.005130768,0.005504608,0.017425537,0.0010242462,-0.010063171,-0.013168335,-0.051940918,-0.013710022,-0.008605957,-0.010696411,-0.036621094,0.020263672,-0.004337311,-0.028839111,0.0031967163,-0.011459351,0.0024547577,-0.0047683716,0.0051498413,0.041625977,0.004901886,0.016860962,-0.021911621,-0.036315918,-0.013877869,0.0039634705,0.017822266,-0.050811768,0.014892578,-0.008590698,-0.012939453,0.005760193,0.010009766,0.01940918,0.022918701,0.021209717,0.043426514,-0.0592041,0.046020508,-0.030593872,0.015457153,0.012588501,-0.03213501,0.00023984909,-0.033111572,-0.0077552795,0.041992188,-0.019088745,-0.007091522,-0.030593872,-0.036193848,-0.013549805,-0.058258057,0.011878967,0.032104492,0.03466797,-0.029525757,-0.007003784,0.00957489,0.011482239,-0.018875122,0.0017776489,-0.022598267,0.01828003,0.02508545,-0.0026111603,-0.0158844,-0.023773193,-0.027572632,-0.0067825317,-0.046691895,-0.052947998,-0.008842468,-0.0028686523,0.004173279,-0.011077881,-0.026489258,-0.029678345,-0.006126404,-0.037841797,0.012382507,0.000916481,0.019744873,-0.0007414818,-0.024597168,0.0055351257,0.0138549805,-0.013687134,0.03036499,0.012840271,-0.0050849915,-0.03829956,0.010093689,0.021438599,0.010284424,-0.0024967194,-0.028152466,-0.0121154785,-0.01953125,-0.059295654,-0.0046157837,-0.004070282,-0.006965637,-0.020065308,0.007091522,-0.05215454,-0.0070648193,-0.027130127,0.00015676022,0.017959595,0.015853882,0.001127243,0.0048942566,0.014717102,0.0013875961,-0.009811401,-0.02734375,0.011512756,0.010787964,0.009933472,0.02532959,0.04360962,0.007003784,-0.02645874,0.0059318542,0.008651733,0.020904541,-0.011955261,0.0077323914,-0.02067566,0.009902954,-0.014259338,-0.013015747,-0.037139893,0.0032100677,0.07696533,-0.0025196075,-0.014930725,-0.021591187,-0.011070251,0.014419556,0.02923584,-0.03805542,-0.0055770874,-0.03387451,0.018661499,-0.018310547,0.012184143,0.0011901855,0.025802612,-0.020492554,-0.044677734,-0.015991211,0.0023975372,-0.017349243,-0.07055664,-0.019836426,-0.07904053,0.012924194,-0.018814087,-0.020385742,0.004009247,0.00894928,-0.017318726,-0.07928467,0.002122879,0.049682617,0.0052375793,0.028945923,0.000044941902,0.010826111,0.026107788,-0.03012085,-0.0042762756,0.024139404,-0.023391724,-0.012390137,-0.018081665,0.021118164,-0.010597229,-0.012565613,0.0057373047,0.0063209534,0.018951416,0.0001437664,0.015777588,-0.00881958,0.025772095,-0.014167786,0.011886597,-0.014152527,-0.012886047,0.03564453,-0.059509277,0.022598267,0.0149002075,-0.0012931824,0.007255554,0.032836914,0.04574585,-0.043395996,-0.011352539,0.010467529,0.007118225,0.025299072,-0.019226074,0.04574585,0.00894928,-0.011650085,0.023620605,-0.017028809,-0.012176514,-0.031677246,-0.024673462,0.03152466,-0.00598526,0.016952515,-0.016296387,0.009857178,0.025466919,0.0011606216,0.0057258606,-0.012870789,-0.019012451,-0.014152527,0.007247925,-0.004245758,0.009468079,0.0022335052,0.03366089,0.024383545,0.040771484,0.015914917,-0.009132385,0.0073928833,0.025817871,-0.01953125,-0.002313614,0.040008545,0.0059280396,0.014602661,0.023132324,0.016326904,-0.050323486,-0.019165039,-0.019134521,-0.02949524,0.0039405823,-0.022460938,-0.015731812,-0.003824234,0.0067634583,-0.012084961,-0.026611328,-0.008918762,-0.03164673,-0.02468872,0.0002322197,-0.009864807,0.02305603,0.00080537796,0.010513306,-0.0039520264,-0.0063285828,0.04309082,0.006755829,-0.015670776,0.031433105,0.03692627,0.019699097,-0.025543213,-0.0036735535,-0.017501831,-0.006702423,0.0019721985,-0.030166626,0.0093307495,0.041656494,-0.022964478,0.011039734,0.0047073364,0.032714844,-0.0099487305,-0.00090265274,-0.0043411255,0.017578125,-0.008773804,0.03527832,-0.03894043,0.013908386,0.013786316,0.00009119511,-0.021255493,-0.01725769,-0.03427124,0.015556335,0.00046277046,0.0008196831,0.043701172,0.021270752,0.022323608,-0.021438599,-0.010520935,0.012260437,-0.030166626,-0.021591187,0.022781372,-0.0057411194,0.004005432,0.010032654,-0.024734497,0.031173706,-0.03604126,0.014785767,0.00982666,0.013183594,-0.0017499924,-0.012290955,-0.013931274,-0.0057792664,-0.013290405,0.0023822784,-0.00005930662,0.05303955,0.025634766,0.033325195,0.041809082,0.019104004,-0.0026512146,-0.04260254,-0.024841309,0.0084991455,-0.014564514,0.021560669,-0.017990112,0.05529785,0.036071777,0.006614685,0.031707764,0.04852295,0.048828125,0.012702942,0.012283325,-0.020019531,0.014770508,-0.0002603531,0.02418518,-0.008285522,0.042999268,-0.03262329,0.027679443,0.010284424,0.024246216,-0.028671265,0.03286743,0.07128906,0.015899658,-0.018569946,0.036102295,-0.004085541,-0.012687683,-0.011497498,-0.025970459,0.041534424,0.002380371,0.046295166,0.051116943,0.015022278,-0.011299133,0.025878906,-0.026901245,-0.028121948,0.059417725,0.03164673,-0.0056266785,-0.0099487305,-0.00094127655,0.012435913,-0.04196167,-0.023620605,0.02128601,-0.012718201,0.0034103394,-0.009552002,-0.008666992,-0.013671875,0.0013027191,0.018859863,0.008903503,-0.012908936,0.019470215,0.017700195,-0.0021743774,0.032348633,-0.0020809174,0.033416748,-0.024795532,-0.024047852,0.015075684,0.018951416,0.000032663345,-0.020584106,0.021774292,0.0064964294,0.042785645,0.036468506,-0.01537323,0.011245728,0.026397705,0.020309448,-0.0053215027,0.051483154,0.035095215,0.014183044,0.034698486,0.034240723,0.030670166,-0.036346436,0.018310547,0.0051994324,0.0069999695,-0.013542175,-0.007881165,0.007881165,-0.0070381165,0.027572632,-0.0004711151,-0.012023926,0.024536133,0.0234375,-0.010002136,-0.005973816,-0.0036411285,0.0069122314,-0.024459839,-0.007926941,0.015319824,-0.0234375,0.030197144,0.010177612,0.02268982,-0.021759033,0.014694214,0.0059928894,-0.021728516,-0.0022525787,0.028121948,-0.037017822,0.0010232925,0.0029945374,-0.00018680096,-0.04763794,0.011672974,0.024505615,-0.012557983,0.031143188,0.009841919,-0.0020370483,0.001329422,0.020843506,0.004600525,0.001791954,-0.008415222,-0.019973755,0.024673462,0.0368042,-0.009231567,0.0011806488,-0.032287598,-0.015312195,0.0073547363,-0.016845703,-0.0019817352,-0.007282257,-0.021484375,-0.025894165,0.020858765,0.032104492,0.016845703,0.045654297,-0.019882202,-0.011123657,0.014022827,0.0357666,0.009292603,-0.005065918,-0.005619049,0.020935059,-0.028839111,0.04425049,0.03778076,0.007446289,0.039764404,-0.00116539,-0.014602661,0.00027298927,-0.012458801,0.029312134,-0.025054932,0.0099105835,0.005115509,0.029418945,-0.011955261,-0.02645874,0.012199402,-0.011756897,-0.02243042,-0.02557373,0.014480591,0.0051498413,0.028945923,0.032318115,0.02619934,-0.020736694,0.062805176,-0.0077323914,0.040893555,0.004688263,-0.01864624,0.05154419,0.018722534,0.039001465,0.022567749,0.013908386,-0.038238525,0.020599365,0.030883789,0.020599365,0.010505676,0.0018663406,-0.012840271,0.032470703,-0.0067481995,0.03640747,-0.0034561157,0.002840042,0.015914917,-0.0013885498,-0.0063056946,0.0011253357,-0.0048942566,-0.00050735474,0.045806885,-0.023254395,-0.00028920174,-0.025344849,-0.008155823,0.031021118,-0.016906738,0.0058898926,-0.00095176697,-0.016784668,0.012168884,-0.016983032,-0.026565552,0.005432129,0.030593872,-0.05218506,-0.022964478,0.0017576218,0.026901245,-0.020355225,0.030380249,0.030548096,-0.0017318726,-0.003030777,0.04675293,-0.0109939575,0.017822266,-0.012565613,0.033569336,0.034240723,0.0016231537,-0.028884888,-0.004085541,0.014381409,-0.005706787,0.013877869,0.03161621,-0.011192322,-0.0030765533,-0.005405426,-0.0041999817,-0.0027561188,0.0034370422,-0.015823364,0.010574341,-0.011268616,-0.019729614,-0.003446579,0.0055770874,-0.0013027191,0.0071372986,-0.007835388,-0.018829346,0.010498047,0.030227661,0.02532959,-0.040924072,-0.004234314,0.0074005127,0.017303467,-0.026229858,-0.011665344,0.004398346,-0.038513184,0.017105103,0.024307251,0.013076782,0.012771606,-0.029937744,0.012016296,0.02949524,0.005859375,0.024291992,-0.0024471283,-0.010253906,0.016464233,-0.0052986145,-0.008659363,-0.000808239,-0.01689148,0.014381409,0.021133423,-0.006538391,-0.02407837,0.03149414,0.0044784546,0.026947021,-0.0016860962,-0.01902771,0.02520752,-0.0077552795,-0.0052375793,0.0061683655,0.017349243,-0.021072388,-0.0127334595,-0.0057907104,0.034576416,0.05886841,-0.018112183,-0.010658264,0.012908936,0.023956299,0.024978638,0.041900635,0.0046653748,0.040374756,0.01689148,-0.024398804,-0.020217896,0.023254395,-0.008865356,-0.021377563,0.020324707,-0.018585205,-0.027648926,0.012054443,0.0067481995,0.005077362,-0.027862549,-0.014709473,-0.009010315,-0.011909485,0.01889038,-0.014480591,0.024124146,-0.02709961,-0.0038642883,0.0087890625,-0.019348145,-0.050933838,-0.020187378,-0.0017976761,-0.013969421,-0.05609131,0.0046463013,-0.025497437,0.0003106594,-0.023162842,-0.003408432,-0.019012451,0.011131287,-0.0070533752,-0.008728027,0.00011110306,0.022033691,0.026062012,-0.004676819,0.023620605,-0.02659607,-0.020263672,-0.024627686,0.0027256012,-0.0017776489,0.021209717,0.0031814575,0.04083252,0.022735596,-0.017837524,0.00032663345,-0.017501831,-0.004386902,-0.009750366,-0.019424438,-0.026870728,0.032958984,0.014732361,-0.009590149,-0.008628845,0.036499023,-0.021820068,-0.017990112,0.029541016,0.05130005,0.00078487396,0.03189087,-0.022994995,0.0035381317,-0.018997192,0.00818634,-0.0118255615,0.0038375854,0.0129470825,0.006416321,-0.0051841736,0.009162903,0.021194458,-0.009803772,-0.011810303,0.03048706,0.009689331,-0.011367798,0.04360962,0.012580872,0.010276794,-0.015930176,-0.007030487,0.020263672,0.051330566,0.013015747,0.017333984,-0.014854431,0.011207581,-0.014335632,0.008636475,0.01940918,-0.034332275,-0.042388916,-0.014221191,-0.029907227,0.017807007,-0.004776001,0.010879517,-0.013877869,0.023086548,-0.02015686,-0.03277588,-0.02319336,0.033203125,0.018173218,-0.009544373,-0.009048462,0.01033783,0.0110321045,-0.030303955,-0.0040359497,-0.042388916,-0.0357666,-0.004009247,-0.019241333,0.019058228,0.009056091,-0.01209259,0.0043296814,0.0003876686,0.0044784546,0.005470276,0.025314331,-0.011268616,-0.0007209778,0.028045654,0.010826111,-0.021484375,0.018157959,-0.014984131,0.0013980865,0.0154418945,-0.006465912,0.016143799,-0.014198303,0.02720642,-0.013168335,-0.0044403076,0.029708862,-0.011405945,0.0107803345,-0.035095215,0.0047836304,0.004383087,-0.0074653625,0.03656006,-0.024642944,-0.016708374,0.0068359375,-0.0132751465,-0.024673462,0.0033874512,0.0031280518,0.03491211,-0.0051078796,0.055145264,-0.017669678,0.00019598007,0.020217896,0.0078125,-0.009590149,0.008079529,0.032836914,0.00003874302,0.008026123,0.0005016327,-0.007785797,-0.030273438,-0.0033187866,0.013656616,-0.0008635521,-0.010406494,0.024597168,0.011070251,0.046142578,-0.009391785,0.018325806,0.017120361,-0.00014472008,0.019470215,0.010383606,0.053222656,0.009986877,-0.019744873,0.0037841797,0.0034999847,-0.028656006,0.00223732,-0.005844116,0.0048599243,-0.046875,0.010223389,-0.009147644,0.02394104,-0.022323608,0.015670776,-0.019134521,-0.0093307495,-0.046569824,-0.006374359,-0.038635254,0.0072288513,0.032287598,0.0087890625,0.0345459,0.0069007874,-0.026626587,0.017410278,0.04220581,0.0049819946,-0.021011353,-0.026153564,0.007713318,0.009269714,0.010597229,0.0047302246,-0.017227173,-0.011985779,-0.0017824173,-0.003742218,0.011924744,-0.0079193115,0.017944336,0.017822266,-0.005744934,-0.012969971,0.035095215,-0.0029716492,-0.0015687943,0.011909485,0.012702942,0.036895752,0.027633667,-0.013076782,0.031951904,0.011230469,-0.04714966,0.06604004,0.0024738312,0.037017822,-0.016662598,0.0034694672,-0.031951904,-0.023529053,-0.012687683,0.0039596558],"createdAt":"2026-04-18T18:40:01.925Z","updatedAt":"2026-04-22T18:31:07.917Z","lastSeenAt":"2026-04-22T18:31:07.917Z","tsv":"'/api/v1/accounts/70':88 '/request':13,28 '0.02':12,27,69,121 '000':110 '0x8335':115 '20':109 '2913':116 '6':125 'accept':96 'access':94 'across':143 'actual':199 'address':137 'advertis':141 'ai':153 'ai/ml':48 'analysi':157 'analyt':47,147 'api':5,20,37,74,93 'base':8,23,66,111,118 'base network api' 'behind':206 'broader':139 'call':4,19,71 'categori':145 'chain':132 'challeng':101 'classif':160 'collect':42 'commit':82 'confirm':102 'connect':190 'content':196 'convers':176 'crawl':180 'data':46,51,146,150,204 'decim':126 'doc':183 'document':181 'embed':161 'enabl':36 'endpoint':44,56,86,142,208 'equal':120 'estim':171 'exchang':166 'export':151 'feed':165 'financ':162 'finance/web3':50 'four':144 'function':200 'gas':170 'generat':177 'geocod':174 'given':122 'howev':178 'infer':49 'infrastructur':173 'insight':152 'key':75 'learn':155 'limit':78 'list':90 'live':105 'low payment fee' 'lowpaymentfee' 'lowpaymentfee.com':31 'machin':154 'metric':148 'micropayment api' 'minimum':81 'network':9,24,67 'no-api-key' 'offer':40 'on-chain':130 'page':182 'paid':58 'pay':2,17 'pay per call api' 'pay-per-cal':1,16 'pay-per-use' 'payment':127 'payto':136 'per':3,18,60,70 'per-request':59 'per-request-billing' 'platform':6,21,38,140 'post':97 'post-endpoint' 'premium':92 'price':164,184 'prompt':192 'quot':169 'rate':77,167 'readm':185 'remain':209 'report':149 'request':61,98,106 'request/response':201 'requir':83 'return':187 'schema':202 'sentiment':156 'servic':54 'settl':129 'sourc':205 'span':45 'specif':85 'specifi':135 'substant':195 'summar':159 'text':158 'token':168 'undocu':210 'unit':112 'unverifi':212 'usdc':15,30,63,114,123 'usdc api' 'usdc-base-network' 'use':62 'util':53 'valid':175 'via':10,25 'wallet':191 'web3':163 'x402':11,26,35,100 'x402 api' 'x402-enabled':34 'x402-payment'","prices":[{"id":"7d66c3d7-8ced-4f92-a0d2-f2aabc07d055","listingId":"d56a0e0d-8803-4d78-a484-33fed10a29ec","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/70","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:01.925Z"}],"sources":[{"listingId":"d56a0e0d-8803-4d78-a484-33fed10a29ec","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/70","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:01.925Z","lastSeenAt":"2026-04-22T18:31:07.917Z"}],"details":{"listingId":"d56a0e0d-8803-4d78-a484-33fed10a29ec","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/70 \\\n  -H \"Content-Type: application/json\"\n# Returns 402 with x402 challenge; attach X-PAYMENT header with USDC payment proof to access.","exampleRequest":null,"exampleResponse":{"error":"X-PAYMENT header is required","accepts":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/accounts/70","description":"Premium API Access","maxAmountRequired":"20000","maxTimeoutSeconds":300}],"x402Version":1},"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, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/70"},{"claim":"Platform advertises endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation, pricing, and README pages all returned only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing premium API data without managing API keys or subscriptions","Making one-off paid API calls settled in USDC on Base","Agent-driven workflows that need low-friction, per-call payment endpoints"],"bestFor":["Developers wanting zero-commitment, pay-as-you-go API access","AI agents that can settle x402 payments autonomously on Base","Projects needing low-cost per-request pricing without rate limits"],"notFor":["Users who need detailed API documentation or guaranteed SLAs before purchasing","Anyone without a Base-compatible USDC wallet or x402 client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:37.287Z"},"updatedAt":"2026-04-22T18:31:07.917Z"}}