{"id":"37d195c1-a3f5-4095-a9a6-a9e0c82c342f","shortId":"mULCcX","kind":"x402","title":"x402-gated premium API access on Base, paid per-call in USDC.","tagline":"x402-gated premium API access on Base, paid per-call in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 paywall. The endpoint is located at `/api/v1/stripe/subscriptions/29` and accepts POST requests. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 \"exact\" scheme.\n\nThe x402 challenge advertises a maxAmountRequired of 20,000 base units. Since USDC uses 6 decimals, this converts to $0.02 per request, consistent with the site's stated pricing of $0.02/request across all its endpoints. The provider advertises no API keys, no rate limits, and instant access.\n\nThe broader lowpaymentfee.com platform offers multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. However, this specific endpoint's path (`/stripe/subscriptions/29`) suggests it may relate to a subscription or Stripe-integration resource rather than the general-purpose APIs listed on the homepage. The exact response payload and functionality of this particular endpoint are not documented in the crawled material — the description simply reads \"Premium API Access\" with no further detail on what data or service is returned.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","per-call-pricing","post-method"],"categories":["api-gateway","payments"],"synonyms":["x402 API","pay-per-call API","USDC API access","lowpaymentfee","Base network API","crypto-paid API","micropayment API"],"warnings":["No documentation available — all doc pages render only 'Connect wallet' with no content","The endpoint path '/api/v1/stripe/subscriptions/29' is not listed among the advertised APIs on the homepage; its actual functionality is unknown","No request body schema or response schema documented","No OpenAPI spec or AI plugin manifest found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/29","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/stripe/subscriptions/29","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 of what the endpoint actually returns upon successful payment, no request/response schema, and the crawled docs/pricing/API pages are all blank ('Connect wallet'). The endpoint path suggests a Stripe subscription resource but nothing explains the actual functionality.","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":"2026-04-19T10:50:18.965Z","embedding":[-0.018722534,-0.019592285,0.024993896,0.00024604797,0.0096206665,-0.017227173,-0.033081055,0.04397583,0.059661865,-0.07489014,0.046325684,-0.050811768,-0.047607422,-0.036315918,-0.019592285,0.0077056885,-0.0055160522,0.005065918,-0.060455322,0.059783936,0.036712646,-0.02330017,-0.005508423,0.016525269,-0.0071983337,-0.018676758,-0.012023926,-0.03503418,-0.0051841736,-0.019821167,0.024780273,-0.02305603,-0.00088882446,0.0062217712,-0.002948761,-0.023498535,0.00081539154,0.05026245,0.023529053,-0.019638062,-0.009979248,-0.07543945,-0.0037631989,-0.0038318634,-0.03491211,0.008682251,0.008628845,-0.020370483,-0.01184082,0.011199951,-0.04006958,-0.022277832,-0.015289307,-0.0050582886,0.023132324,0.008293152,0.009086609,-0.010093689,0.018035889,0.0044174194,0.0006341934,-0.06768799,-0.013175964,-0.0181427,0.017425537,0.06378174,-0.006729126,0.050048828,0.0040893555,0.059448242,0.032318115,0.050445557,0.05303955,0.010864258,0.011024475,-0.0077667236,0.011878967,0.06274414,-0.015853882,-0.0064430237,0.0012388229,-0.005722046,-0.049194336,-0.0034255981,-0.0058631897,-0.047607422,-0.019012451,0.003364563,-0.028625488,0.032958984,-0.07281494,-0.014198303,-0.005214691,0.016784668,0.0003836155,-0.008628845,-0.029037476,0.0074653625,-0.008216858,0.012390137,0.010688782,-0.035247803,0.009971619,0.0012550354,0.065979004,0.03945923,0.028121948,0.033843994,-0.005973816,-0.007881165,-0.008132935,0.01889038,0.0007915497,-0.024810791,0.031799316,0.011199951,-0.0070381165,0.034576416,-0.015274048,0.014556885,-0.034362793,0.033325195,0.02633667,-0.028305054,0.029266357,-0.036621094,0.00058221817,0.00001513958,-0.03604126,-0.02684021,0.03012085,0.008544922,0.026611328,-0.033081055,-0.023788452,-0.00075912476,-0.00920105,-0.03704834,-0.05014038,-0.033599854,0.048095703,-0.018112183,0.03302002,0.021240234,-0.08325195,-0.019592285,-0.052490234,0.0026130676,-0.037994385,-0.014305115,-0.0049324036,0.014839172,-0.004310608,-0.0041122437,-0.033081055,-0.0124435425,0.0020275116,0.019943237,-0.01260376,0.047546387,-0.022842407,0.016098022,0.033721924,0.021774292,0.020217896,0.026535034,-0.0029678345,-0.07501221,-0.07879639,-0.0050849915,0.0011796951,-0.016860962,-0.039001465,-0.0022563934,-0.0044898987,-0.078063965,-0.02734375,-0.0121154785,0.0016012192,-0.049713135,-0.0093688965,-0.017044067,-0.0026168823,-0.028411865,-0.049682617,-0.019195557,-0.02961731,0.051818848,0.015914917,0.0284729,0.041656494,-0.0129776,0.04284668,0.015556335,-0.02494812,-0.031311035,0.024246216,-0.029800415,0.029373169,0.004951477,0.008132935,-0.029052734,0.02243042,0.068847656,0.014663696,-0.0084991455,-0.0011835098,-0.047729492,-0.014633179,-0.028366089,0.000078201294,0.0049438477,-0.008613586,0.03781128,-0.028930664,-0.025909424,-0.019622803,-0.010986328,0.02305603,0.0637207,0.0096206665,-0.005970001,0.0034313202,0.0082092285,-0.040740967,0.030426025,0.054870605,0.029800415,-0.026046753,-0.025009155,0.026412964,0.033294678,-0.0042419434,0.0003335476,-0.02015686,0.020767212,-0.017242432,-0.010726929,0.025039673,-0.02166748,-0.038208008,-0.022918701,0.0093307495,0.025009155,0.018035889,-0.031143188,-0.047576904,-0.07128906,0.013969421,0.04849243,0.04107666,-0.00415802,-0.011795044,-0.021209717,-0.009338379,-0.076049805,0.06707764,0.07611084,-0.011520386,-0.0067481995,0.023727417,-0.01374054,-0.041137695,-0.026351929,0.0029830933,-0.013580322,-0.01134491,0.02168274,-0.02758789,0.0034427643,0.005622864,0.015411377,0.06402588,-0.014419556,-0.030960083,-0.035095215,0.017044067,-0.0029354095,-0.021774292,0.006801605,-0.004043579,-0.0008111,0.035003662,0.00040459633,0.023803711,0.0009198189,0.0137786865,-0.02331543,-0.007873535,-0.021331787,-0.025482178,0.011566162,-0.018096924,-0.06665039,0.009063721,-0.011276245,0.045043945,-0.02947998,0.023773193,-0.0047721863,0.0055236816,0.05206299,0.003944397,-0.028625488,-0.008583069,0.014503479,0.047454834,0.05102539,-0.0010089874,-0.007270813,-0.015464783,0.045043945,-0.018463135,-0.01939392,0.0009870529,0.027450562,0.036102295,-0.0032463074,-0.080566406,-0.042877197,-0.0042381287,-0.019836426,0.023544312,-0.033294678,0.04928589,-0.018341064,0.00944519,-0.03277588,-0.00699234,-0.04437256,0.015007019,-0.019470215,-0.009780884,0.008163452,-0.014862061,0.016448975,0.021957397,-0.0033245087,0.00630188,0.040405273,0.019195557,-0.029678345,-0.032226562,-0.0052757263,-0.022567749,0.0024795532,0.029266357,0.012924194,0.022354126,0.046539307,-0.05795288,0.010528564,0.02911377,0.0046691895,0.017333984,-0.020309448,0.029037476,-0.057006836,-0.03137207,-0.024032593,-0.048950195,0.03503418,-0.017578125,0.020935059,0.052764893,-0.0015630722,-0.04486084,-0.036621094,0.028289795,-0.04333496,0.009391785,0.019378662,0.00052022934,-0.021621704,-0.0010547638,0.019119263,0.02003479,0.04788208,0.010429382,-0.005367279,0.07897949,0.0362854,0.011054993,0.0026474,0.0031700134,0.036712646,-0.01777649,-0.020843506,-0.044952393,-0.010177612,0.020751953,-0.013221741,-0.031555176,-0.07525635,0.03652954,0.029083252,0.06506348,0.029403687,0.0023021698,0.053131104,-0.0015306473,0.005332947,-0.034973145,-0.01890564,-0.041290283,-0.02406311,0.02394104,-0.024719238,0.01134491,-0.028305054,0.01576233,-0.0017957687,0.020812988,-0.035736084,0.030532837,0.020462036,-0.0048294067,-0.00009906292,0.013595581,0.053833008,0.06774902,-0.043548584,0.0440979,0.01259613,-0.027023315,0.01184845,0.039642334,-0.003189087,-0.030792236,-0.047790527,-0.015182495,0.011192322,-0.0016098022,-0.081604004,-0.0022830963,0.017181396,0.024871826,0.026977539,-0.016860962,-0.05593872,-0.009147644,-0.023483276,-0.06829834,-0.007698059,-0.031463623,0.020233154,0.048583984,-0.035858154,-0.011154175,-0.003648758,0.009284973,-0.003129959,0.006149292,0.006427765,-0.013191223,-0.044281006,0.023284912,-0.0002411604,0.033081055,0.026229858,0.03564453,0.024353027,0.010910034,0.039855957,0.010437012,-0.005844116,-0.044036865,0.003124237,-0.025543213,0.0057525635,0.014633179,-0.0143966675,0.0007920265,0.0034713745,-0.04067993,-0.041015625,-0.0022144318,-0.03781128,0.0010061264,0.031173706,-0.053619385,-0.016799927,-0.04849243,-0.013008118,-0.0109939575,0.06915283,0.02609253,0.0019931793,-0.07727051,-0.026672363,0.035308838,0.007663727,0.010627747,-0.015625,-0.020599365,-0.026657104,-0.028762817,-0.009979248,-0.027236938,0.029403687,0.0054969788,-0.043121338,0.022506714,-0.0054130554,0.025527954,0.0030879974,0.017211914,0.019195557,-0.01928711,0.009315491,-0.039276123,0.02355957,0.010803223,-0.01789856,-0.060302734,0.05206299,-0.007091522,0.03302002,-0.022415161,-0.008590698,-0.0021476746,0.010482788,0.011802673,-0.021453857,-0.014625549,0.00806427,-0.043548584,-0.08758545,0.014663696,-0.014503479,0.012023926,-0.0046958923,0.01576233,0.024429321,-0.00079107285,0.0049591064,0.03050232,-0.01448822,-0.009315491,-0.03479004,-0.041625977,-0.018692017,0.0047035217,-0.002521515,0.000097334385,-0.0073928833,0.0060195923,-0.0050468445,-0.021911621,0.033996582,0.003452301,0.0065231323,0.034240723,-0.008422852,0.024490356,0.03479004,0.007537842,-0.028366089,0.011955261,0.0051879883,-0.0126571655,-0.027053833,0.04574585,0.030227661,-0.012321472,0.0027217865,-0.0018863678,-0.01612854,-0.014305115,-0.0018930435,0.0026226044,0.04751587,0.009002686,-0.02658081,0.025512695,0.01739502,-0.030639648,-0.020080566,0.02053833,0.019302368,-0.027130127,0.028930664,0.038085938,0.041229248,-0.029937744,0.009788513,0.0016088486,0.039398193,0.014259338,0.018310547,-0.0077056885,0.016067505,-0.024978638,0.017120361,0.008422852,-0.015670776,-0.00028562546,-0.007259369,0.027542114,0.015411377,0.014312744,-0.025024414,-0.007457733,-0.0031814575,0.010154724,-0.010360718,0.025878906,0.026809692,0.012069702,-0.0058288574,0.017807007,0.005218506,-0.029403687,-0.018722534,-0.0033836365,0.028198242,-0.016342163,-0.022720337,0.020812988,-0.0010900497,0.042053223,-0.074279785,0.0029335022,0.0077400208,0.007118225,-0.027832031,-0.027511597,-0.033233643,-0.0006580353,0.031585693,0.00016283989,0.006629944,0.031280518,0.0074043274,-0.0014286041,0.009742737,0.011978149,0.0044021606,-0.013061523,-0.05496216,0.0003516674,-0.005756378,0.0034294128,-0.035461426,0.006038666,-0.026229858,-0.018859863,0.013168335,-0.014076233,0.0042495728,0.004714966,0.0158844,0.026504517,0.0004286766,0.009376526,-0.005794525,-0.01335144,-0.009895325,-0.0009241104,0.021194458,-0.032836914,0.021209717,-0.027069092,-0.0015897751,-0.00548172,0.0033721924,0.02507019,0.027145386,-0.0031909943,0.009880066,-0.02822876,0.04019165,-0.029541016,0.0070991516,0.0035381317,-0.0317688,0.0061416626,-0.026931763,-0.023620605,0.03744507,-0.023132324,0.004886627,-0.02230835,-0.024749756,-0.022201538,-0.06173706,0.010757446,0.025665283,0.04675293,-0.030441284,0.0031261444,-0.008834839,0.008277893,-0.012016296,0.007297516,-0.013298035,0.0028743744,0.02494812,0.0049705505,-0.023925781,-0.022109985,-0.019302368,-0.019042969,-0.06713867,-0.057006836,-0.027450562,0.025405884,0.0046157837,-0.005252838,-0.020095825,-0.010177612,-0.010177612,-0.040283203,0.021957397,-0.00088119507,0.033966064,0.008430481,-0.031341553,0.00121212,0.014152527,-0.015571594,0.016326904,0.0074653625,0.0036563873,-0.027267456,0.016036987,0.03475952,0.01890564,0.024032593,-0.012359619,0.0015497208,-0.021026611,-0.047851562,-0.001698494,-0.017150879,-0.0135269165,-0.0062561035,-0.0018291473,-0.039886475,-0.010757446,-0.01663208,-0.012588501,0.019866943,0.0037326813,0.031066895,-0.0029411316,-0.003917694,-0.019683838,-0.015945435,-0.030014038,0.020706177,0.011070251,0.011909485,0.0065841675,0.0519104,0.00070905685,-0.018569946,-0.0011024475,-0.0010585785,0.036499023,-0.015304565,0.004776001,0.01386261,0.011123657,-0.023666382,-0.01159668,-0.047027588,0.0066490173,0.0657959,0.018157959,-0.005176544,-0.008903503,0.0012569427,0.022583008,0.020004272,-0.039764404,-0.009727478,-0.034210205,0.0075302124,0.0027751923,0.014472961,0.022506714,0.025238037,-0.010101318,-0.054382324,-0.0107803345,0.025299072,-0.025009155,-0.05630493,-0.010360718,-0.042266846,-0.0038967133,-0.021072388,-0.018920898,-0.0030403137,0.011230469,-0.011360168,-0.09094238,0.009254456,0.045715332,0.018722534,0.039154053,-0.02734375,0.027832031,0.014167786,-0.01386261,-0.016799927,0.035827637,-0.02708435,-0.028686523,-0.013496399,0.0423584,-0.018341064,-0.04119873,0.009391785,-0.0005145073,0.026382446,0.0019836426,0.0023822784,-0.039733887,0.02734375,0.0104522705,0.017791748,-0.00095796585,-0.026809692,0.029006958,-0.040283203,0.01663208,0.017745972,-0.005970001,0.007545471,0.026733398,0.030685425,-0.039794922,0.0054855347,0.029907227,0.0013065338,0.059387207,-0.023529053,0.042388916,0.017044067,-0.007896423,0.021240234,-0.015464783,-0.03060913,-0.04864502,-0.026519775,0.023773193,-0.008857727,0.011482239,-0.02406311,0.0033550262,0.00970459,-0.0033302307,0.006362915,-0.0034923553,-0.0074920654,-0.014381409,0.0046081543,-0.00056505203,-0.001203537,-0.0061950684,0.035461426,-0.001657486,0.036834717,0.0134887695,-0.011070251,0.029037476,0.023956299,-0.008560181,-0.011528015,0.021133423,0.003929138,0.0040397644,0.03100586,0.01399231,-0.033996582,-0.014770508,-0.008338928,-0.011207581,0.0005021095,-0.009277344,-0.010757446,-0.004398346,0.004776001,0.0020637512,-0.027908325,0.01890564,-0.025527954,-0.029373169,-0.008201599,-0.024108887,0.014770508,-0.002773285,0.0011987686,0.024276733,0.010261536,0.067871094,0.00097465515,-0.0071105957,0.025054932,0.035003662,0.0074386597,-0.022445679,0.010658264,-0.0022888184,0.007835388,0.003320694,-0.018951416,0.013046265,0.042999268,-0.012870789,0.030014038,-0.014526367,0.021224976,-0.0065956116,0.029190063,-0.012107849,-0.0009088516,-0.012718201,0.04446411,-0.04043579,0.019424438,0.018737793,-0.013702393,-0.003452301,-0.021011353,-0.03881836,0.041503906,0.015571594,-0.0061187744,0.044525146,0.0035991669,0.0181427,-0.036499023,-0.01902771,0.0013103485,-0.029830933,-0.01676941,0.036010742,0.010879517,0.0096206665,0.018249512,-0.014572144,0.017456055,-0.030853271,0.028793335,-0.002691269,-0.0030174255,-0.032836914,-0.023971558,-0.020980835,-0.01133728,-0.028793335,0.007888794,0.0007324219,0.032714844,0.044525146,0.007019043,0.02696228,-0.0008711815,0.00082969666,-0.021362305,-0.015777588,0.0038051605,-0.028503418,-0.006462097,-0.018127441,0.021881104,0.056396484,0.005329132,0.025009155,0.036010742,0.01852417,0.013137817,0.01725769,-0.023162842,0.013702393,-0.02470398,0.03375244,0.020568848,0.035705566,-0.017425537,0.011856079,0.0061683655,0.03111267,-0.022949219,0.016113281,0.07495117,0.020446777,-0.018569946,0.05581665,-0.003250122,-0.021102905,-0.026275635,-0.022903442,0.055664062,0.020080566,0.037078857,0.02684021,0.011772156,-0.00699234,0.025650024,-0.02659607,-0.02609253,0.048706055,0.021942139,-0.021453857,-0.021484375,-0.023925781,-0.00094127655,-0.032470703,-0.015037537,0.02659607,-0.01398468,0.014953613,-0.0032310486,-0.0063552856,0.007926941,0.0181427,0.017318726,0.022659302,-0.022842407,0.015060425,0.024475098,0.021560669,0.016281128,0.014045715,0.042266846,-0.032318115,-0.019195557,-0.0018043518,0.019210815,-0.003435135,0.010673523,0.034698486,0.016906738,0.05178833,0.048706055,-0.0181427,-0.0024909973,0.034729004,0.007751465,-0.0034103394,0.039642334,0.03274536,0.015106201,0.024108887,0.03942871,0.015945435,-0.03137207,-0.00006735325,-0.008766174,0.00409317,-0.011802673,-0.022064209,0.011741638,0.0028018951,0.030761719,-0.006614685,-0.0029525757,0.02822876,0.03805542,0.0033359528,-0.002954483,-0.0016078949,0.006904602,0.007091522,0.0051460266,0.011543274,-0.025848389,0.01235199,0.016586304,0.029296875,-0.03036499,0.005744934,-0.008560181,-0.028442383,-0.019943237,0.012519836,-0.040863037,0.02003479,-0.009292603,-0.0038700104,-0.033691406,0.018249512,0.0077590942,0.0054016113,0.023422241,0.007369995,0.0050621033,0.017990112,0.029693604,0.013755798,-0.010246277,-0.0109939575,-0.012557983,0.019882202,0.044006348,0.0031871796,0.037109375,-0.014007568,-0.0020008087,0.013664246,-0.006374359,-0.02078247,-0.002735138,-0.011405945,-0.033233643,0.027664185,0.044769287,0.0077400208,0.042633057,0.010223389,-0.010398865,0.016036987,0.019302368,0.012588501,-0.015625,0.0023880005,0.019805908,0.0036029816,0.0440979,0.040130615,-0.009498596,0.028045654,0.0024223328,-0.0040283203,-0.0068588257,-0.023117065,0.015808105,-0.020599365,0.007003784,-0.011207581,0.023529053,-0.024887085,-0.030212402,0.0066108704,-0.012229919,-0.017593384,-0.02331543,0.004673004,0.009231567,0.021316528,0.035858154,0.020980835,-0.028442383,0.06781006,-0.0051498413,0.05340576,-0.007637024,0.009063721,0.03842163,0.036895752,0.032989502,0.019744873,0.026809692,-0.033081055,0.015914917,0.028198242,0.019210815,0.011764526,0.006454468,-0.012458801,0.043701172,-0.010124207,0.0362854,-0.02444458,-0.0034656525,0.016815186,-0.004627228,0.0053863525,-0.0047187805,-0.0010976791,0.023956299,0.046417236,-0.040130615,-0.015357971,-0.024154663,-0.020492554,0.03262329,-0.007297516,0.013938904,0.016647339,-0.020446777,0.018798828,-0.030258179,-0.015792847,0.018722534,0.029510498,-0.025741577,-0.0345459,-0.00028300285,0.020523071,-0.021820068,0.02911377,0.024887085,-0.0007724762,0.0008864403,0.05517578,-0.008132935,0.05340576,-0.0006375313,0.023208618,0.03475952,-0.018615723,-0.024841309,0.011802673,0.020370483,-0.008125305,0.009376526,0.03866577,-0.0077705383,0.0051879883,-0.01638794,-0.019424438,-0.0057754517,0.007724762,-0.018661499,-0.0067749023,-0.008201599,-0.008705139,-0.005176544,0.018203735,0.0069122314,0.0016050339,-0.011505127,-0.010414124,0.00995636,0.023712158,0.023513794,-0.041412354,0.012191772,0.0024852753,0.0022850037,-0.020599365,-0.014419556,0.0039634705,-0.031173706,0.030075073,0.03149414,0.017471313,0.0029144287,-0.030426025,0.0075569153,0.029006958,0.017074585,0.027511597,0.008377075,-0.01423645,0.016586304,-0.026306152,-0.004749298,-0.012611389,0.0057411194,0.007987976,0.001666069,-0.030227661,-0.021316528,0.03466797,-0.0071029663,0.015899658,0.01423645,-0.015464783,0.033721924,-0.019195557,-0.014526367,0.00044894218,0.012817383,-0.0021915436,-0.019622803,-0.019760132,0.016464233,0.054870605,-0.011787415,0.010498047,0.02659607,0.010688782,0.03012085,0.03869629,0.020507812,0.04260254,0.034454346,-0.020690918,-0.0027217865,0.030044556,-0.0093688965,-0.036712646,0.014434814,-0.0016469955,-0.033966064,0.021316528,0.007499695,-0.01586914,-0.01889038,-0.026748657,-0.006996155,-0.02558899,0.0072517395,-0.018737793,0.0039749146,-0.028076172,-0.015914917,-0.0021953583,-0.011833191,-0.044311523,-0.013626099,-0.010559082,-0.018249512,-0.05050659,-0.00052022934,-0.02458191,-0.0065956116,-0.02986145,-0.009590149,-0.0025920868,0.038024902,-0.019088745,-0.0046577454,0.00049209595,0.03491211,0.0038528442,0.01651001,0.019805908,-0.0041046143,-0.01689148,-0.007183075,-0.015449524,-0.02507019,0.03552246,-0.01991272,0.033966064,0.004535675,-0.004310608,0.0027980804,-0.016540527,-0.0013561249,0.004180908,-0.036376953,-0.00944519,0.019973755,0.029830933,-0.028335571,0.000013291836,0.052764893,-0.012573242,-0.02557373,0.028198242,0.050567627,0.009803772,0.046539307,-0.014755249,-0.006252289,-0.007751465,0.0010604858,-0.017791748,0.004886627,0.00005686283,0.012619019,-0.005302429,0.0067329407,0.022583008,-0.020980835,-0.01197052,0.024017334,0.004798889,-0.021316528,0.03982544,0.010665894,0.0016517639,-0.0131073,-0.011764526,0.012176514,0.042053223,0.019134521,0.008842468,-0.014595032,0.014183044,-0.0143966675,0.012702942,0.005771637,-0.020385742,-0.016220093,-0.013336182,-0.02017212,0.020599365,-0.01411438,0.024307251,0.0015239716,0.018417358,-0.0047950745,-0.026489258,-0.012924194,0.015090942,0.0059547424,0.0020809174,-0.011230469,-0.0016012192,0.019317627,-0.020492554,0.004421234,-0.03970337,-0.019210815,-0.0103302,-0.0155181885,0.028930664,0.0029563904,-0.0067977905,0.0115737915,0.0033130646,-0.0044174194,-0.01335907,0.03729248,-0.019241333,0.0028743744,0.015052795,0.012336731,-0.016677856,0.023010254,-0.018234253,-0.009506226,0.030960083,0.0007863045,0.019180298,0.00018012524,0.037902832,0.023010254,-0.0026683807,0.03050232,-0.0037784576,0.0051193237,-0.013282776,-0.010948181,0.00023055077,-0.00248909,0.021835327,-0.008506775,-0.017028809,0.013320923,-0.02583313,-0.037628174,0.009017944,0.016189575,0.049072266,-0.02670288,0.041381836,-0.012825012,-0.021148682,-0.0028247833,0.018997192,-0.020843506,-0.0056114197,0.025848389,0.015838623,-0.00011497736,0.0012168884,-0.017715454,-0.013900757,-0.002445221,0.013938904,-0.006126404,-0.007583618,0.009033203,0.02168274,0.04650879,0.0006284714,0.017608643,0.023498535,0.009597778,0.024917603,-0.0047798157,0.022201538,-0.0005068779,-0.031036377,0.0068588257,0.0014743805,-0.00995636,-0.0016021729,0.007118225,0.008018494,-0.03717041,0.016036987,0.0024967194,0.04647827,-0.028945923,0.0073661804,-0.025924683,0.002084732,-0.02545166,0.0059928894,-0.029800415,0.01473999,0.039764404,0.0038661957,0.00223732,0.011550903,-0.013877869,0.02078247,0.036712646,0.0003979206,-0.026794434,-0.0109939575,0.013183594,0.020080566,-0.002500534,0.020309448,-0.02986145,-0.007598877,-0.0025749207,-0.011489868,0.005897522,0.0053520203,0.0032901764,0.025756836,0.0046920776,-0.015319824,0.037750244,-0.00818634,0.00016844273,-0.003232956,0.006088257,0.03564453,0.032318115,-0.019821167,0.0317688,0.019958496,-0.029678345,0.058380127,-0.023162842,0.0059280396,-0.018493652,0.0032577515,-0.025741577,-0.0071792603,0.004524231,0.005039215],"createdAt":"2026-04-18T18:56:34.936Z","updatedAt":"2026-04-22T15:02:03.501Z","lastSeenAt":"2026-04-22T15:02:03.501Z","tsv":"'/api/v1/stripe/subscriptions/29':46 '/request':99 '/stripe/subscriptions/29':141 '0.02':87,98 '000':76 '0x8335':61 '20':75 '2913':62 '6':82 'Base network API' 'USDC API access' 'accept':48 'access':6,20,36,115,188 'across':100 'advertis':71,106 'ai':127 'analyt':126 'api':5,19,35,108,122,160,187 'base':8,22,56,77 'base-network' 'behind':37 'broader':117 'call':12,26 'categori':123 'challeng':70 'consist':90 'contract':60 'convert':85 'crawl':180 'crypto-paid API' 'data':125,195 'decim':83 'descript':183 'detail':192 'document':177 'endpoint':30,42,103,138,174 'exact':66,166 'financ':130 'function':170 'gate':3,17 'general':158 'general-purpos':157 'homepag':164 'howev':135 'includ':124 'infrastructur':133 'instant':114 'integr':152 'key':109 'learn':129 'limit':112 'list':161 'locat':44 'lowpaymentfee' 'lowpaymentfee.com':32,118 'machin':128 'materi':181 'maxamountrequir':73 'may':144 'micropayment API' 'multipl':121 'network':57 'offer':120 'paid':9,23 'particular':173 'path':140 'pay-per-call API' 'payload':168 'payment':51 'paywal':40 'per':11,25,88 'per-cal':10,24 'per-call-pricing' 'platform':119 'post':49 'post-method' 'premium':4,18,34,186 'price':96 'provid':33,105 'purpos':159 'rate':111 'rather':154 'read':185 'relat':145 'request':50,89 'resourc':153 'respons':167 'return':199 'scheme':67 'servic':197 'settl':53 'simpli':184 'sinc':79 'site':93 'specif':137 'state':95 'stripe':151 'stripe-integr':150 'subscript':148 'suggest':142 'unit':78 'usdc':14,28,59,80 'usdc-settlement' 'use':58,81 'util':134 'via':63 'web3':131 'x402':2,16,39,65,69 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"5bec7310-4293-4b97-b3e5-79f5494a0d22","listingId":"37d195c1-a3f5-4095-a9a6-a9e0c82c342f","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/stripe/subscriptions/29","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:34.936Z"}],"sources":[{"listingId":"37d195c1-a3f5-4095-a9a6-a9e0c82c342f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/29","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:34.936Z","lastSeenAt":"2026-04-22T15:02:03.501Z"}],"details":{"listingId":"37d195c1-a3f5-4095-a9a6-a9e0c82c342f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/29\n# Returns 402 with x402 challenge; attach X-PAYMENT header with signed USDC payment on Base 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/stripe/subscriptions/29","description":"Premium API Access","maxAmountRequired":"20000","maxTimeoutSeconds":300}],"x402Version":1},"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/29"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/29"}],"useCases":["Programmatic access to a premium API resource with per-call USDC micropayments","Agent-driven workflows that need keyless, pay-as-you-go API consumption on Base","Demonstrating x402 payment protocol integration for subscription-style endpoints"],"bestFor":["Developers experimenting with x402 payment flows on Base","Agents that can settle USDC payments on Base L2","Use cases requiring keyless, no-signup API access"],"notFor":["Users who need detailed documentation or guaranteed SLAs before integrating","Applications requiring fiat-only payment rails with no crypto involvement"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:49.256Z"},"updatedAt":"2026-04-22T15:02:03.501Z"}}