{"id":"5f6b96a0-9994-4fbc-9e2b-5271448dfd9b","shortId":"7YnEzB","kind":"x402","title":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific resource `/api/v1/accounts/125` is one of many endpoints offered by the platform, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, rate limits, or commitments required.\n\nThe x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract 0x8335…2913 on Base) to address 0x1A2B…85F3. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per call. The endpoint returns application/json responses with a 300-second payment timeout.\n\nThe specific functionality of `/api/v1/accounts/125` is not documented beyond the label \"Premium API Access.\" The platform's landing page lists other endpoints (metrics, reports, sentiment analysis, summarization, classification, embeddings, price feeds, exchange rates, geocoding, etc.) but does not describe what the accounts endpoint returns. Documentation pages (/docs, /api, /pricing, /README) all rendered only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","json-response","no-api-key","accounts-api"],"categories":["api-marketplace","infrastructure"],"synonyms":["lowpaymentfee","low payment fee API","x402 premium API","pay-per-call API","USDC micropayment API","Base network API"],"warnings":["The exact purpose and response format of /api/v1/accounts/125 is undocumented — the label 'Premium API Access' is generic and uninformative.","All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no usable content.","No OpenAPI spec, request schema, or response schema is available.","The accounts endpoint does not appear in the platform's own listed API catalog on the landing page."],"endpointUrl":"https://lowpaymentfee.com/api/v1/accounts/125","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/125","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for what /api/v1/accounts/125 actually returns, no request/response schema, and all doc pages are empty. The specific functionality is unknown.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-19T01:15:13.917Z","embedding":[-0.014511108,-0.016937256,0.051239014,0.026672363,0.017501831,-0.031402588,-0.010231018,0.03451538,0.07067871,-0.08453369,0.034484863,-0.048431396,-0.023391724,-0.03640747,-0.02885437,0.021194458,-0.0055351257,0.010009766,-0.03363037,0.037261963,0.020050049,-0.022659302,-0.014884949,0.030761719,-0.006916046,-0.02142334,-0.022277832,-0.030807495,-0.00667572,-0.043029785,0.045043945,-0.026306152,0.004486084,0.031280518,-0.0074882507,-0.036743164,0.0013570786,0.041870117,0.03137207,-0.010124207,-0.016296387,-0.038970947,-0.0030174255,0.00086307526,-0.056732178,0.009399414,-0.0012655258,-0.028137207,-0.019500732,0.020874023,-0.041870117,0.007648468,0.0025501251,-0.00844574,0.0025043488,0.002155304,0.0024490356,-0.011634827,0.013427734,0.02029419,-0.00623703,-0.055633545,-0.015625,-0.002067566,0.0046157837,0.06036377,0.0009384155,0.05038452,0.012458801,0.055908203,0.03451538,0.06109619,0.030029297,0.022125244,0.0010643005,-0.0052604675,0.0012273788,0.060791016,0.0012083054,-0.015930176,-0.019927979,-0.011672974,-0.060424805,0.015068054,-0.021484375,-0.0435791,0.0007853508,0.022003174,-0.012283325,0.020080566,-0.06549072,0.0046577454,-0.006942749,0.005836487,0.016830444,-0.0025310516,-0.0104599,0.009292603,-0.027893066,0.023513794,0.011230469,-0.034118652,0.021514893,0.0059776306,0.026885986,0.0625,0.022766113,0.022033691,0.00006711483,-0.012046814,-0.033111572,0.018478394,-0.009132385,-0.034088135,0.006580353,0.011047363,-0.028701782,0.0057907104,-0.018463135,0.0028743744,-0.040008545,0.0637207,0.019348145,-0.011489868,0.021102905,-0.048614502,-0.011505127,0.016983032,-0.031921387,-0.0038032532,0.003255844,0.011245728,0.037322998,-0.022964478,-0.0178833,0.0040359497,-0.01008606,-0.02394104,-0.047821045,-0.023635864,0.047729492,-0.023880005,0.013465881,0.03302002,-0.089538574,-0.015342712,-0.055480957,-0.0013399124,-0.028961182,-0.0006723404,-0.005897522,0.022766113,-0.016540527,0.002784729,-0.030258179,-0.021148682,0.007167816,0.043029785,-0.016601562,0.06213379,0.014167786,0.027252197,0.040893555,0.011856079,0.025054932,0.035949707,-0.0099487305,-0.066223145,-0.08618164,-0.009941101,0.0014772415,-0.00027298927,-0.038330078,-0.007209778,-0.009498596,-0.06262207,-0.025619507,0.0010280609,-0.011360168,-0.028625488,0.0012922287,-0.025131226,0.015670776,-0.0055351257,-0.06298828,-0.0065574646,-0.027694702,0.07098389,0.04058838,0.0077667236,0.03050232,-0.007545471,0.059173584,0.032226562,-0.03314209,-0.036346436,0.020812988,-0.008491516,0.0074501038,0.0031700134,-0.00086069107,-0.032928467,0.030578613,0.058410645,0.016784668,-0.019866943,0.0014162064,-0.04449463,-0.040039062,-0.033416748,0.020751953,0.0046157837,0.010612488,0.037872314,-0.040740967,-0.04107666,-0.003698349,0.0116119385,0.021102905,0.049621582,0.0020961761,-0.0041389465,0.025054932,0.018554688,-0.050933838,0.030593872,0.04598999,0.022140503,-0.019729614,-0.016403198,0.024749756,0.032043457,-0.014312744,0.023147583,-0.023513794,0.028259277,0.004470825,0.040527344,0.015731812,-0.017990112,-0.017059326,-0.022827148,-0.020462036,0.03378296,0.023483276,-0.012535095,-0.0335083,-0.101257324,0.049560547,0.047454834,0.03479004,0.0004954338,0.008331299,-0.034484863,-0.008354187,-0.05999756,0.054870605,0.06726074,-0.016036987,-0.01802063,0.015289307,-0.012756348,-0.037109375,-0.0063323975,-0.002943039,-0.039978027,-0.0184021,0.005138397,-0.05102539,0.0071754456,-0.017440796,0.020431519,0.06286621,0.0008172989,-0.05053711,-0.022476196,0.0032138824,0.005935669,-0.027191162,0.014701843,-0.0034122467,0.011016846,0.038848877,-0.01184082,0.02142334,-0.006549835,0.0028972626,-0.0057296753,-0.0016174316,-0.021820068,-0.040802002,-0.004333496,-0.0057868958,-0.04901123,0.007843018,0.005317688,0.064575195,-0.041503906,0.031341553,-0.017684937,0.00299263,0.057678223,-0.0038890839,-0.054351807,0.017852783,0.020019531,0.02999878,0.051116943,0.010894775,-0.035827637,0.012504578,0.069885254,-0.017715454,-0.014205933,0.026519775,0.011497498,0.034301758,-0.010856628,-0.06188965,-0.020339966,-0.010238647,-0.036895752,-0.0072746277,-0.016662598,0.026046753,-0.012939453,0.0059890747,-0.021362305,0.0009899139,-0.038970947,0.033935547,-0.013885498,0.0070648193,-0.013298035,-0.011856079,0.016921997,0.013206482,-0.010551453,-0.015899658,0.045410156,0.0181427,-0.012718201,-0.040161133,-0.010536194,-0.008636475,-0.0023155212,0.02330017,0.018539429,0.0057144165,0.050201416,-0.034606934,0.008926392,0.034454346,0.023376465,0.04071045,-0.007835388,0.0061149597,-0.068359375,-0.05105591,-0.012954712,-0.053009033,0.021438599,0.02142334,-0.01146698,0.070129395,0.00079774857,-0.015838623,-0.045318604,0.023071289,-0.037597656,-0.002035141,0.04534912,-0.020645142,-0.024627686,-0.020980835,0.0067329407,0.010887146,0.030853271,0.02104187,0.013191223,0.07977295,0.040618896,0.010673523,0.009712219,0.016189575,0.030075073,0.0036239624,-0.02267456,-0.03326416,0.0069084167,0.035339355,-0.00024819374,-0.011505127,-0.08013916,0.06048584,0.031280518,0.08282471,0.024719238,0.0031471252,0.04550171,-0.039398193,0.008613586,-0.045440674,-0.016159058,-0.02545166,-0.041290283,0.02243042,-0.019088745,-0.008262634,-0.012268066,0.028076172,0.0046844482,0.0206604,-0.026779175,0.046203613,0.0029239655,-0.01928711,0.018371582,0.007091522,0.035858154,0.04434204,-0.02911377,0.044158936,0.0137786865,-0.03604126,0.0110321045,0.04949951,-0.026428223,-0.00054740906,-0.051239014,-0.016540527,0.0056533813,-0.009170532,-0.05001831,-0.0018625259,-0.009162903,0.024475098,0.030960083,-0.013496399,-0.019058228,-0.0056419373,-0.009010315,-0.055389404,-0.018951416,-0.033569336,-0.0056037903,0.04309082,-0.038848877,-0.011054993,0.026245117,-0.007965088,-0.020217896,0.007091522,0.0132369995,-0.0068244934,-0.05569458,0.031204224,0.01285553,0.03475952,-0.007675171,0.042755127,0.016860962,0.020950317,0.042114258,0.016723633,-0.020217896,-0.056793213,0.024459839,-0.04248047,-0.0005598068,0.028259277,-0.006290436,-0.0021324158,-0.003932953,-0.038330078,-0.021697998,-0.01285553,-0.029556274,-0.0045433044,0.016021729,-0.031921387,-0.020812988,-0.048614502,-0.011978149,-0.0015287399,0.06488037,0.024124146,0.004261017,-0.048919678,-0.010238647,0.018737793,0.01576233,0.018676758,-0.014625549,-0.0019702911,-0.025421143,-0.013626099,-0.023956299,-0.012786865,0.010169983,-0.009918213,-0.008132935,0.03778076,0.004463196,0.008712769,-0.0069503784,0.024276733,0.02406311,-0.02420044,0.005958557,-0.010002136,0.041381836,-0.00415802,-0.010169983,-0.050628662,0.047424316,0.013793945,0.026916504,-0.039886475,0.0043258667,0.006000519,0.013328552,0.010307312,-0.01260376,-0.01739502,-0.003578186,-0.057159424,-0.08569336,0.047210693,-0.026031494,0.028915405,0.0050315857,0.00047039986,0.021911621,-0.0071372986,0.004135132,0.016708374,-0.030776978,-0.0087890625,-0.012107849,-0.024917603,-0.012611389,-0.011795044,-0.0061798096,0.011138916,-0.017044067,0.0046577454,0.0034675598,-0.009185791,0.022567749,-0.012588501,-0.010231018,0.027618408,-0.008354187,0.020645142,0.04574585,0.010856628,-0.042907715,0.025650024,-0.002954483,-0.0050735474,-0.0048446655,0.036010742,0.022994995,-0.008102417,-0.0061912537,-0.00036859512,-0.009437561,-0.02633667,0.010871887,0.0041275024,0.017410278,-0.00655365,-0.042877197,0.024429321,0.017700195,-0.03881836,-0.019927979,0.013809204,0.0045204163,-0.038269043,0.023834229,0.03036499,0.05303955,-0.023498535,0.003873825,0.002670288,0.027404785,0.032806396,0.008094788,-0.017410278,0.0211792,-0.017410278,0.0020046234,-0.00042700768,-0.01600647,-0.0005745888,0.0061569214,0.023513794,0.03010559,0.0034675598,-0.022705078,-0.027038574,-0.009231567,-0.004219055,-0.02178955,0.02218628,0.030944824,0.019943237,-0.02961731,0.01576233,-0.0036506653,-0.023101807,-0.015731812,-0.013534546,0.03152466,-0.0043563843,-0.03390503,0.020446777,0.0138549805,0.032409668,-0.05947876,-0.0069351196,0.00894165,0.017868042,-0.027297974,-0.03793335,-0.031677246,-0.00044727325,0.034301758,0.0018491745,0.020477295,0.03326416,0.000077068806,-0.0025577545,0.022918701,0.010978699,-0.016525269,-0.0037403107,-0.03527832,0.002380371,-0.0052986145,0.0009498596,-0.031173706,0.012031555,-0.008529663,-0.024932861,0.0059051514,-0.0071372986,-0.006969452,0.0022659302,0.009643555,0.0149383545,-0.007080078,0.00674057,-0.022827148,-0.030151367,-0.011711121,0.005039215,0.010551453,-0.056427002,0.03062439,-0.014961243,-0.023651123,0.0051345825,0.007209778,0.016052246,0.02128601,0.011367798,0.037963867,-0.0635376,0.033569336,-0.036499023,0.012893677,0.013420105,-0.028289795,0.0000295043,-0.022003174,-0.01486969,0.03111267,-0.017349243,-0.007835388,-0.02407837,-0.024810791,-0.0027503967,-0.051879883,0.01109314,0.03189087,0.035125732,-0.02458191,-0.009307861,0.0038700104,0.011253357,-0.019714355,0.0026836395,-0.01828003,0.014549255,0.017715454,-0.0013723373,-0.033843994,-0.021347046,-0.0259552,-0.0014801025,-0.038330078,-0.04840088,-0.010269165,0.0057296753,0.0022125244,-0.01285553,-0.029724121,-0.02557373,0.007408142,-0.049804688,0.018325806,-0.003967285,0.02999878,-0.0050621033,-0.023880005,0.009895325,0.011802673,-0.010414124,0.043548584,0.010261536,-0.0002501011,-0.032958984,0.0012464523,0.03945923,0.008728027,0.0058403015,-0.019195557,-0.022232056,-0.011138916,-0.054870605,-0.014259338,-0.0030879974,-0.011238098,-0.019088745,-0.00059890747,-0.036346436,-0.009414673,-0.025741577,0.001619339,0.016067505,0.0070152283,0.0031719208,0.007850647,0.012916565,-0.007736206,-0.019058228,-0.029632568,0.013252258,0.010307312,0.0004749298,0.015426636,0.04626465,0.009796143,-0.021621704,0.013771057,0.008270264,0.020584106,-0.005302429,-0.0026016235,-0.007572174,0.008514404,-0.0206604,-0.01449585,-0.03387451,-0.0061416626,0.08648682,-0.0073509216,-0.016021729,-0.03137207,-0.012260437,0.018844604,0.01689148,-0.032440186,-0.00091409683,-0.022064209,0.024139404,-0.021102905,0.009895325,0.0059013367,0.02810669,-0.01600647,-0.05480957,-0.019424438,0.015350342,-0.030685425,-0.06585693,-0.007537842,-0.059265137,-0.012809753,-0.004108429,-0.028442383,0.0044288635,0.00881958,-0.012527466,-0.0814209,0.001291275,0.03579712,0.0043525696,0.024932861,-0.014556885,0.014015198,0.019302368,-0.036193848,-0.024291992,0.033416748,-0.030471802,0.005722046,-0.018600464,0.01876831,-0.0044441223,-0.017059326,0.022872925,-0.0073394775,0.030807495,-0.0071029663,0.0062789917,-0.012809753,0.0072135925,-0.0107803345,0.013771057,-0.0079422,-0.008636475,0.04248047,-0.055786133,0.020401001,0.026504517,0.00046873093,0.0146484375,0.029220581,0.030654907,-0.048309326,-0.019165039,0.02003479,0.011367798,0.030395508,-0.021224976,0.045288086,0.019424438,-0.017166138,0.029815674,-0.015037537,-0.01878357,-0.04324341,-0.022949219,0.03652954,-0.00932312,0.028625488,-0.006011963,0.0044403076,0.019348145,-0.013328552,0.006462097,-0.0041770935,-0.029174805,-0.0033550262,0.005783081,-0.010383606,0.0064468384,0.0027942657,0.038330078,0.005947113,0.034210205,0.019104004,0.006416321,0.009124756,0.0112838745,-0.038024902,0.00094890594,0.038604736,0.0041122437,0.015510559,0.0038890839,0.01158905,-0.055389404,-0.024017334,-0.019485474,-0.020950317,-0.002210617,-0.021514893,-0.014732361,-0.008453369,0.00409317,-0.0104522705,-0.026367188,0.008415222,-0.035369873,-0.026672363,-0.000027656555,-0.008361816,0.023803711,0.005756378,0.015312195,0.019561768,0.00017797947,0.04611206,0.008995056,-0.009414673,0.031021118,0.027740479,0.008651733,-0.023605347,-0.0007019043,-0.010147095,-0.004966736,-0.0034427643,-0.025512695,0.02142334,0.037506104,-0.018371582,0.013946533,-0.0061836243,0.029693604,-0.018966675,0.008354187,-0.0060539246,0.026351929,-0.00548172,0.038360596,-0.03024292,0.008163452,0.0065689087,-0.0048561096,-0.013946533,-0.01335144,-0.0390625,0.010513306,0.00038790703,-0.021713257,0.047058105,0.008880615,0.025985718,-0.035339355,-0.017242432,0.0046310425,-0.029891968,-0.014816284,0.03161621,0.002067566,-0.0044288635,0.012611389,-0.03829956,0.03125,-0.020217896,0.017349243,-0.0019445419,0.016799927,-0.0041999817,-0.01576233,-0.019317627,-0.0035266876,-0.004463196,-0.008010864,0.00075149536,0.05834961,0.02519226,0.040771484,0.054229736,0.023040771,0.0018520355,-0.028396606,-0.020996094,0.0066566467,-0.024856567,0.0048217773,-0.0069236755,0.0637207,0.036224365,-0.0008854866,0.01928711,0.033599854,0.04473877,0.00374794,0.0070152283,-0.0012178421,0.010383606,-0.0047035217,0.023406982,-0.0028305054,0.04272461,-0.022750854,0.027359009,0.022827148,0.023986816,-0.03414917,0.03866577,0.07043457,0.020187378,-0.020812988,0.02319336,-0.005279541,-0.009666443,-0.018920898,-0.022583008,0.058410645,0.0004761219,0.04876709,0.050842285,0.011413574,-0.008148193,0.025054932,-0.031173706,-0.025344849,0.0713501,0.021087646,-0.0076904297,-0.01335144,-0.010826111,0.0058784485,-0.045196533,-0.026931763,0.012939453,-0.005859375,0.008460999,-0.010978699,-0.00957489,-0.008087158,0.009902954,0.023956299,0.008834839,-0.017868042,0.021057129,0.02180481,-0.0010547638,0.01576233,0.0017242432,0.030700684,-0.024093628,-0.015655518,0.015899658,0.02154541,-0.007499695,-0.010902405,0.021697998,0.012069702,0.05407715,0.043273926,-0.015342712,0.011352539,0.039245605,0.017501831,-0.003768921,0.056671143,0.03363037,0.010040283,0.043701172,0.031036377,0.029922485,-0.029800415,0.026168823,0.0016231537,-0.00054597855,-0.007320404,-0.010795593,0.0032196045,-0.027633667,0.028396606,0.0098724365,-0.009307861,0.017196655,0.008895874,-0.0009756088,0.0011062622,-0.0028457642,0.012329102,-0.010978699,-0.00092220306,0.01991272,-0.02128601,0.027038574,0.0047340393,0.016098022,-0.026519775,0.01977539,0.002910614,-0.027297974,0.0026760101,0.017990112,-0.044525146,0.009262085,-0.005542755,-0.011192322,-0.037475586,0.008743286,0.018356323,-0.012817383,0.028579712,0.010826111,0.009063721,0.0069732666,0.012161255,0.00749588,-0.0052833557,-0.009109497,-0.02015686,0.032165527,0.032318115,-0.000954628,0.021514893,-0.03173828,-0.013168335,0.011253357,-0.01171875,-0.01109314,-0.017364502,-0.027954102,-0.032196045,0.0029964447,0.031311035,0.016784668,0.0446167,-0.00945282,-0.018417358,0.006626129,0.04144287,0.011688232,-0.007904053,-0.010643005,0.02267456,-0.03036499,0.054229736,0.051116943,0.00020432472,0.028579712,-0.013290405,-0.013847351,0.0029315948,-0.0075798035,0.026809692,-0.025726318,0.014335632,-0.00349617,0.029922485,-0.008834839,-0.03237915,0.0051193237,-0.018188477,-0.012863159,-0.024734497,0.008934021,0.0087509155,0.02545166,0.03161621,0.013206482,-0.023849487,0.066833496,-0.018051147,0.046081543,-0.010154724,-0.01209259,0.045043945,0.025741577,0.03378296,0.014945984,0.020904541,-0.029693604,0.019332886,0.044006348,0.020187378,0.01158905,-0.00006741285,-0.029251099,0.033996582,0.0014562607,0.028320312,-0.016143799,-0.0027427673,0.021209717,-0.009712219,-0.0071029663,0.007080078,-0.0104522705,0.0010147095,0.038757324,-0.03326416,-0.0036468506,-0.024307251,-0.005378723,0.029586792,-0.014602661,0.0032634735,0.008514404,-0.025817871,0.009643555,-0.035614014,-0.02217102,0.011230469,0.028518677,-0.026290894,-0.02571106,-0.005794525,0.011352539,-0.026855469,0.024993896,0.023834229,-0.0033245087,0.003917694,0.036132812,-0.006362915,0.016311646,-0.017196655,0.024627686,0.028030396,0.004016876,-0.027694702,0.0058403015,0.014091492,-0.011116028,0.007259369,0.039886475,-0.0077667236,-0.00090265274,-0.0023212433,-0.012458801,0.005836487,0.00014567375,-0.00844574,0.00025725365,-0.013626099,-0.012283325,-0.0026493073,0.0113220215,-0.005142212,0.009788513,-0.009147644,-0.015365601,0.004257202,0.03756714,0.02796936,-0.03353882,-0.0077209473,0.01638794,0.025268555,-0.024795532,-0.015052795,0.00868988,-0.028625488,0.020645142,0.02381897,0.004722595,0.006298065,-0.026916504,0.009422302,0.04421997,0.011451721,0.0132751465,0.006587982,-0.0046310425,0.029556274,-0.0045700073,-0.0048332214,0.0006766319,-0.018188477,0.010917664,0.016571045,-0.01184845,-0.027511597,0.03274536,0.009887695,0.027359009,0.0029850006,-0.014457703,0.024520874,-0.015052795,-0.013427734,0.012710571,0.017578125,-0.011817932,-0.016113281,-0.009887695,0.024917603,0.06488037,-0.025939941,-0.0007581711,0.014755249,0.010910034,0.027404785,0.044769287,0.002199173,0.029724121,0.023086548,-0.03289795,-0.016708374,0.023620605,-0.0042648315,-0.030960083,0.014335632,-0.009216309,-0.030776978,-0.002161026,0.004890442,-0.0068511963,-0.01449585,-0.027816772,-0.012306213,-0.019989014,0.005355835,-0.014961243,0.013183594,-0.019958496,-0.001241684,0.0027618408,0.004722595,-0.05319214,-0.036224365,0.0014257431,-0.012283325,-0.047607422,0.012649536,-0.028442383,0.0060424805,-0.014183044,-0.0036792755,-0.014778137,0.032409668,-0.004524231,-0.0023727417,0.014259338,0.03353882,0.015586853,0.0048103333,0.028701782,-0.019363403,-0.030593872,-0.022415161,-0.006580353,-0.00756073,0.024032593,0.0016107559,0.043273926,0.025650024,-0.0021133423,-0.004638672,-0.01966858,0.0065574646,0.0004386902,-0.023223877,-0.020904541,0.016677856,0.015037537,0.0006737709,-0.008468628,0.034423828,-0.019882202,-0.018112183,0.028259277,0.052001953,-0.013870239,0.036376953,-0.031677246,-0.005542755,-0.017669678,0.01108551,-0.022827148,0.015472412,0.011451721,0.008384705,-0.0022068024,0.0038471222,0.02154541,-0.009155273,-0.006832123,0.017822266,-0.0052490234,-0.0211792,0.033416748,0.0075263977,0.0026283264,-0.011207581,-0.00630188,0.017959595,0.037628174,0.019165039,0.00022542477,-0.02204895,0.014602661,-0.025253296,0.0035362244,0.021026611,-0.035217285,-0.044189453,-0.01802063,-0.02418518,0.018325806,0.008049011,0.015472412,-0.012184143,0.008384705,-0.034973145,-0.020965576,-0.02053833,0.031921387,0.012573242,-0.0149383545,-0.006378174,0.012023926,0.022125244,-0.019119263,0.0018625259,-0.03475952,-0.028320312,0.002046585,-0.018371582,0.015571594,0.010498047,-0.0056114197,0.0002348423,0.0077209473,-0.00006711483,0.0032100677,0.035491943,-0.01348114,-0.0044670105,0.017166138,0.0033016205,-0.031799316,0.006729126,0.004119873,0.0015335083,0.024215698,-0.007850647,-0.0043754578,-0.00932312,0.028213501,-0.012260437,0.00075387955,0.026931763,0.0017471313,0.0028324127,-0.0289917,0.0070152283,0.011680603,-0.0050621033,0.046875,-0.032928467,-0.015426636,0.0077209473,-0.034301758,-0.021728516,0.005924225,0.008758545,0.033447266,-0.0073509216,0.045013428,-0.005367279,0.0024738312,0.023544312,-0.0009794235,-0.008003235,-0.00063085556,0.031463623,0.009010315,0.008003235,-0.0041160583,-0.010398865,-0.030685425,-0.0011644363,0.021957397,-0.0012168884,-0.017700195,0.015235901,-0.0055160522,0.04034424,-0.0079193115,0.025146484,0.01966858,0.005470276,0.015403748,0.0107421875,0.045776367,0.011352539,-0.031677246,0.014122009,-0.00409317,-0.02368164,0.0011539459,-0.010688782,0.015899658,-0.05368042,0.014793396,-0.00021028519,0.032592773,-0.020767212,0.011184692,-0.026062012,-0.010299683,-0.041168213,-0.0096588135,-0.038513184,0.009101868,0.032562256,0.014221191,0.024154663,0.0056610107,-0.03302002,0.003780365,0.04220581,-0.002210617,-0.011772156,-0.020965576,0.00756073,0.024993896,0.015037537,0.011329651,-0.017578125,-0.028930664,0.01121521,0.002779007,0.014442444,-0.0057907104,0.011238098,0.014640808,-0.007610321,-0.010696411,0.03692627,-0.0021877289,-0.0037212372,0.0044403076,0.009552002,0.036102295,0.03152466,-0.0063323975,0.036895752,0.017120361,-0.034240723,0.054229736,-0.009773254,0.035858154,-0.022994995,-0.00995636,-0.035339355,-0.022766113,0.005264282,0.00843811],"createdAt":"2026-04-18T18:40:50.388Z","updatedAt":"2026-04-23T07:30:57.633Z","lastSeenAt":"2026-04-23T07:30:57.633Z","tsv":"'/api':196 '/api/v1/accounts/125':47,153 '/docs':195 '/pricing':197 '/readme':198 '/request':13,28 '0.02':12,27,76,135 '000':126 '0x1a2b':118 '0x8335':112 '20':125 '2913':113 '300':145 '6':131 '85f3':119 'Base network API' 'USDC micropayment API' 'accept':103 'access':7,22,38,162 'account':190 'accounts-api' 'address':117 'ai':63 'amount':122 'analysi':174 'analyt':62 'api':6,21,37,88,161 'application/json':141 'base':9,24,84,115,127 'beyond':157 'call':4,19,137 'categori':59 'challeng':97 'classif':176 'commit':93 'confirm':98 'connect':203 'content':209 'contract':111 'data':61 'decim':132 'describ':187 'document':156,193 'embed':177 'endpoint':32,52,72,100,139,170,191 'equal':134 'etc':183 'exchang':180 'feed':179 'financ':66 'function':151 'geocod':182 'includ':60 'infrastructur':69 'json-response' 'key':89 'label':159 'land':166 'learn':65 'limit':91 'list':168 'live':102 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':64 'mani':51 'max':121 'metric':171 'network':85 'no-api-key' 'offer':53 'one':49 'page':167,194 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payabl':79 'payment':42,108,147 'per':3,18,77,136 'platform':56,164 'post':104 'premium':5,20,36,160 'price':74,178 'prompt':205 'protocol':43 'provid':35 'rate':90,181 'render':200 'report':172 'request':78,105 'requir':94,123 'resourc':46 'respons':142 'return':140,192 'second':146 'sentiment':173 'settl':107 'span':58 'specif':45,150 'substant':208 'summar':175 'timeout':148 'unit':128 'usdc':15,30,81,110,130 'usdc-base' 'util':70 'via':10,25,39 'wallet':204 'web3':67 'x402':11,26,41,96 'x402 premium API' 'x402-payment'","prices":[{"id":"87834534-70fb-48fc-92b8-f4e7dd30418f","listingId":"5f6b96a0-9994-4fbc-9e2b-5271448dfd9b","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/125","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:40:50.388Z"}],"sources":[{"listingId":"5f6b96a0-9994-4fbc-9e2b-5271448dfd9b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/accounts/125","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:40:50.388Z","lastSeenAt":"2026-04-23T07:30:57.633Z"}],"details":{"listingId":"5f6b96a0-9994-4fbc-9e2b-5271448dfd9b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/accounts/125 \\\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":"All endpoints priced at $0.02 per request with no API keys, rate limits, or commitments","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/accounts/125"},{"claim":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/accounts/125"},{"claim":"Platform offers endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing account data via a single micropayment without subscription or API key","Agent-driven workflows that need on-demand API access with crypto settlement","Testing x402 payment protocol integrations against a live endpoint"],"bestFor":["Developers wanting zero-commitment, pay-as-you-go API access","AI agents that can settle x402 payments in USDC on Base","Prototyping x402 payment flows at low cost ($0.02/call)"],"notFor":["Users who need detailed documentation or schema definitions before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:34.966Z"},"updatedAt":"2026-04-23T07:30:57.633Z"}}