{"id":"34b4491e-98ba-44ba-bf40-fd4e343d6b27","shortId":"JMKfc6","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\" via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities. All endpoints on the platform are gated by x402 challenges and settle payments in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stripe/subscriptions/148` is listed as \"Premium API Access\" and returns a valid x402 challenge with a maximum amount of 20,000 base units of USDC (0.02 USD per request). The payment is made to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, using the USDC contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. The endpoint accepts POST requests and returns `application/json` responses.\n\nThe platform advertises no API keys, no rate limits, and instant access. Documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all appear to require a wallet connection and contain no substantive content in the crawl. As a result, the actual functionality behind this specific \"Premium API Access\" endpoint is unclear — the URL path suggests it may relate to Stripe subscription management, but no schema, request/response examples, or detailed documentation were found. The platform's landing page lists many other endpoints at $0.02 each, but none share this particular path pattern.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-call","json-api","post-method"],"categories":["api-gateway","payments"],"synonyms":["premium API","x402 API","pay-per-call API","USDC API access","Base network API","lowpaymentfee","crypto-paid API"],"warnings":["No documentation available — all doc pages require wallet connection and returned no content","The actual functionality behind 'Premium API Access' at /api/v1/stripe/subscriptions/148 is unknown","No request or response schema provided","No examples of expected input or output"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/148","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/148","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 there is no documentation, no request/response schema, and no explanation of what \"Premium API Access\" actually provides. The docs, pricing, and README pages are all behind a wallet gate and yielded 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":"2026-04-19T10:48:27.574Z","embedding":[-0.009628296,-0.011001587,0.031311035,0.0104522705,0.0030326843,-0.015945435,-0.015609741,0.05419922,0.06604004,-0.07519531,0.036224365,-0.045898438,-0.03665161,-0.055786133,-0.03503418,0.013908386,-0.019226074,0.008232117,-0.059814453,0.055267334,0.042999268,-0.018341064,-0.0041046143,0.035308838,-0.006378174,-0.021026611,-0.020431519,-0.031707764,-0.010826111,-0.018600464,0.029556274,-0.025787354,-0.0036525726,0.019927979,-0.012557983,-0.012893677,0.0024356842,0.04949951,0.02911377,-0.008850098,0.004005432,-0.06896973,-0.007549286,0.0014638901,-0.033325195,0.015007019,0.011451721,-0.0104599,-0.00970459,0.021820068,-0.045654297,-0.018234253,-0.017471313,-0.006275177,0.008964539,0.004283905,0.009254456,-0.014175415,-0.004386902,0.020690918,0.012023926,-0.070495605,-0.012878418,-0.0146484375,0.010902405,0.05960083,-0.005420685,0.045318604,0.0087509155,0.050811768,0.04135132,0.05303955,0.035003662,0.013397217,-0.01121521,-0.015609741,0.02798462,0.072021484,-0.004459381,-0.007331848,-0.0031642914,-0.008224487,-0.0513916,-0.0025920868,-0.014831543,-0.046569824,-0.031219482,-0.010437012,-0.030303955,0.024276733,-0.06719971,-0.020187378,-0.021591187,0.015296936,0.006980896,-0.0045051575,-0.029327393,0.004814148,-0.028213501,0.012161255,0.020492554,-0.03286743,0.00881958,0.005897522,0.056915283,0.035369873,0.02104187,0.05215454,-0.0058403015,-0.017120361,-0.026809692,0.016601562,-0.0012369156,-0.021865845,0.023101807,0.0131073,-0.009887695,0.018600464,-0.0005965233,0.021209717,-0.05130005,0.038391113,0.027313232,-0.023010254,0.022705078,-0.030700684,0.003490448,-0.0041770935,-0.036712646,-0.02154541,0.018249512,0.0021648407,0.020935059,-0.028747559,-0.023284912,-0.0014390945,-0.023590088,-0.036834717,-0.040222168,-0.014137268,0.03186035,-0.021713257,0.036499023,0.029403687,-0.09552002,-0.032318115,-0.0491333,0.011062622,-0.047058105,0.0039138794,-0.00058555603,0.029342651,-0.006515503,-0.0048828125,-0.026657104,-0.013710022,-0.0058021545,0.026550293,-0.019180298,0.047180176,-0.008270264,0.020767212,0.027786255,0.025970459,0.030456543,0.0309906,0.00983429,-0.081970215,-0.07476807,-0.0104522705,-0.0014190674,-0.021102905,-0.052978516,0.004650116,-0.0016260147,-0.07397461,-0.042419434,0.00063991547,-0.008911133,-0.051635742,0.0029830933,-0.006652832,-0.0022830963,-0.024414062,-0.06542969,-0.019470215,-0.025512695,0.051574707,0.028060913,0.020263672,0.04071045,-0.017318726,0.03427124,0.027053833,-0.02470398,-0.05166626,0.016952515,-0.0063591003,0.03427124,0.019714355,0.004135132,-0.045776367,0.012039185,0.064941406,0.024414062,-0.011154175,0.0018968582,-0.04095459,-0.031036377,-0.031341553,0.003238678,-0.0021266937,-0.005996704,0.034454346,-0.030883789,-0.026351929,-0.013298035,-0.008934021,0.0335083,0.063964844,-0.0045814514,-0.008331299,-0.0028076172,0.01222229,-0.021774292,0.04171753,0.03857422,0.037109375,-0.019226074,-0.014717102,0.013832092,0.033050537,-0.007232666,-0.010421753,-0.0184021,0.013801575,-0.010536194,0.0008401871,0.037353516,-0.021011353,-0.031463623,-0.02645874,0.0042877197,0.02078247,0.023330688,-0.03161621,-0.044677734,-0.07672119,0.017684937,0.057159424,0.042297363,0.008293152,-0.0093307495,-0.0236969,-0.0140686035,-0.083496094,0.04458618,0.06488037,-0.016494751,-0.011695862,0.0368042,-0.011749268,-0.05038452,-0.016845703,-0.010124207,-0.009803772,-0.012260437,0.008651733,-0.036895752,0.0023841858,0.009033203,0.022277832,0.06311035,-0.020065308,-0.027389526,-0.03781128,0.018569946,0.009460449,-0.018920898,0.0032978058,-0.0010814667,0.0011663437,0.02432251,-0.00052022934,0.024291992,0.006919861,0.022247314,-0.035461426,-0.0132369995,-0.018920898,-0.039031982,0.014030457,-0.0058898926,-0.060760498,0.01725769,-0.012840271,0.062194824,-0.028076172,0.023208618,-0.006626129,0.0000936985,0.045532227,-0.013092041,-0.038146973,-0.0077285767,0.011978149,0.040100098,0.056854248,0.0012235641,-0.0037384033,-0.0070724487,0.048339844,-0.007232666,-0.025863647,0.003665924,0.022598267,0.03161621,0.0008158684,-0.07147217,-0.035247803,-0.014434814,-0.010978699,0.022018433,-0.026031494,0.04824829,-0.019744873,0.00041270256,-0.023788452,0.005958557,-0.043640137,0.01928711,-0.03704834,-0.019927979,-0.0038661957,-0.0027999878,0.0073127747,0.026229858,0.0023384094,-0.00047636032,0.0390625,0.014213562,-0.022079468,-0.025894165,-0.012458801,-0.03427124,0.021408081,0.010597229,0.016494751,0.019241333,0.05255127,-0.05557251,0.01713562,0.027008057,0.008659363,0.015068054,-0.011810303,0.01979065,-0.051757812,-0.04611206,-0.019577026,-0.058166504,0.02468872,-0.02659607,0.023773193,0.04852295,0.0029640198,-0.0368042,-0.04006958,0.035247803,-0.04260254,0.017364502,0.021148682,0.00333786,-0.02998352,-0.0011301041,0.013687134,0.014198303,0.03717041,0.005859375,-0.0030708313,0.07659912,0.04638672,0.001531601,0.0013561249,0.0010347366,0.026641846,-0.015777588,-0.027786255,-0.032287598,-0.0105896,0.028182983,-0.011528015,-0.03277588,-0.08459473,0.045166016,0.020812988,0.052734375,0.013313293,0.007965088,0.04876709,0.01008606,0.010520935,-0.0335083,-0.012069702,-0.031799316,-0.032165527,0.019378662,-0.019973755,-0.004310608,-0.029190063,0.020736694,-0.004676819,0.017913818,-0.04034424,0.055786133,0.018829346,-0.005756378,0.009994507,0.014770508,0.060699463,0.05886841,-0.03842163,0.025527954,0.017532349,-0.028686523,0.007019043,0.047943115,-0.004184723,-0.02178955,-0.049713135,-0.014480591,0.00945282,0.0056114197,-0.07458496,0.00024604797,0.0051193237,0.019683838,0.030807495,-0.029144287,-0.0546875,-0.0051193237,-0.03427124,-0.06304932,-0.0151901245,-0.023986816,0.02911377,0.047180176,-0.05215454,-0.012001038,0.0005927086,-0.000426054,-0.006511688,-0.0041885376,-0.0035362244,-0.0049819946,-0.036865234,0.024749756,0.009414673,0.02758789,0.024368286,0.030456543,0.01374054,0.0010852814,0.040893555,0.0011997223,-0.021102905,-0.045166016,-0.00012934208,-0.017791748,0.012886047,0.0058670044,-0.017974854,-0.0023269653,0.0026397705,-0.04147339,-0.034698486,0.0060577393,-0.027313232,0.0046691895,0.023651123,-0.047973633,-0.010429382,-0.045196533,-0.0070724487,-0.0017786026,0.08129883,0.03289795,-0.012710571,-0.08746338,-0.019088745,0.040802002,0.010238647,0.004432678,-0.015151978,-0.023544312,-0.034179688,-0.029342651,-0.019363403,-0.016311646,0.017822266,0.006755829,-0.027313232,0.025146484,-0.004890442,0.023635864,0.0015773773,0.011100769,0.019378662,-0.025405884,-0.011123657,-0.046081543,0.012817383,0.0053482056,-0.016174316,-0.055480957,0.03894043,-0.008262634,0.036712646,-0.025848389,-0.00034093857,0.000055909157,0.0071640015,0.008880615,-0.015304565,-0.01637268,0.013114929,-0.045837402,-0.08648682,0.022994995,-0.014884949,0.0032043457,-0.0037384033,0.019577026,0.023254395,0.004550934,0.007045746,0.02947998,-0.0154418945,-0.0045433044,-0.034301758,-0.04168701,-0.015533447,0.0022773743,-0.0043945312,0.004383087,-0.017044067,0.00079488754,-0.0073776245,-0.019989014,0.036712646,0.0032157898,0.0060043335,0.038391113,0.0048294067,0.032928467,0.042785645,0.0011062622,-0.022903442,0.010101318,0.009231567,-0.008132935,-0.019302368,0.04437256,0.0155181885,-0.0074043274,0.012840271,0.00007367134,-0.007633209,-0.010879517,-0.00022232533,-0.0037384033,0.04449463,0.002357483,-0.04147339,0.041107178,0.013397217,-0.022232056,-0.018981934,0.021331787,0.009117126,-0.02027893,0.019424438,0.0284729,0.054626465,-0.02670288,-0.0002784729,0.010238647,0.032684326,0.01626587,0.026748657,-0.0154800415,0.002811432,-0.022872925,0.011993408,0.00844574,-0.013069153,-0.004524231,-0.016067505,0.028030396,0.034484863,0.011306763,-0.02217102,-0.0054397583,-0.006187439,-0.003982544,0.00056123734,0.015357971,0.019561768,0.016448975,-0.015586853,0.025924683,0.016738892,-0.037841797,-0.013893127,-0.007205963,0.03164673,-0.01675415,-0.01651001,0.018447876,-0.0079193115,0.03704834,-0.060058594,-0.0025367737,0.005695343,0.010932922,-0.013160706,-0.029510498,-0.030700684,0.0041503906,0.03933716,0.007713318,0.0011262894,0.028656006,0.012809753,0.003376007,0.017288208,0.0011692047,-0.012336731,-0.019943237,-0.050598145,-0.0017766953,0.000852108,0.007751465,-0.013870239,0.012283325,-0.024856567,-0.020523071,0.01965332,-0.018478394,0.00074863434,0.0058059692,0.016845703,0.024978638,-0.0034275055,0.008293152,-0.012718201,-0.01675415,-0.013412476,0.008224487,0.027023315,-0.028930664,0.020553589,-0.02519226,-0.0010614395,-0.0077056885,0.009056091,0.017913818,0.017242432,0.005847931,0.0070877075,-0.039978027,0.026062012,-0.03125,0.0027484894,0.009063721,-0.017044067,-0.003900528,-0.030303955,-0.027313232,0.039154053,-0.032043457,0.007701874,-0.021148682,-0.023223877,-0.019897461,-0.05923462,0.0154800415,0.031280518,0.039276123,-0.0151901245,0.0073165894,-0.008605957,0.0024108887,-0.006198883,-0.0057907104,-0.006828308,-0.003168106,0.026382446,0.011497498,-0.01838684,-0.016357422,-0.027420044,-0.017303467,-0.066589355,-0.05065918,-0.018066406,0.01802063,-0.00020897388,-0.007801056,-0.029006958,-0.026123047,-0.0016469955,-0.047027588,0.012145996,0.0009651184,0.03213501,0.0146484375,-0.036499023,-0.0021915436,0.012428284,-0.014755249,0.022415161,-0.0070266724,-0.002828598,-0.038879395,0.0026416779,0.038604736,0.030029297,0.023727417,-0.008300781,-0.0019798279,-0.01663208,-0.054016113,-0.00038671494,-0.022705078,0.0014219284,0.0018606186,-0.0047950745,-0.036621094,-0.0013046265,-0.0061187744,-0.01625061,0.012741089,0.019638062,0.02645874,-0.0047073364,-0.00856781,-0.015319824,-0.024856567,-0.030853271,0.022064209,0.010696411,0.014541626,0.011444092,0.053131104,0.0006995201,-0.008422852,-0.008453369,0.0045280457,0.035003662,-0.025222778,0.0016145706,0.0056533813,0.011062622,-0.026321411,-0.0023899078,-0.03729248,0.018661499,0.07330322,0.014251709,0.004055023,-0.013160706,-0.0030326843,0.027709961,0.018722534,-0.043670654,-0.0015277863,-0.034698486,0.030029297,0.0021343231,0.015151978,0.023925781,0.023040771,-0.026397705,-0.0546875,-0.0030937195,0.02444458,-0.020828247,-0.049346924,-0.0062026978,-0.039764404,-0.0079422,-0.018966675,-0.006629944,-0.0059661865,0.010391235,-0.01020813,-0.09240723,0.0044937134,0.04345703,0.01663208,0.027008057,-0.031341553,0.016693115,0.0098724365,-0.022827148,-0.017303467,0.041412354,-0.02305603,-0.015426636,-0.021499634,0.048339844,-0.01927185,-0.033691406,0.01802063,-0.01210022,0.036956787,-0.003665924,0.006843567,-0.024734497,0.027496338,0.0037288666,0.011306763,-0.004306793,-0.041503906,0.022903442,-0.040100098,0.0184021,0.01838684,-0.00086927414,-0.0011034012,0.033691406,0.023620605,-0.032684326,-0.0061683655,0.044006348,0.0016841888,0.053771973,-0.02420044,0.045684814,0.0184021,-0.010231018,0.01586914,-0.008895874,-0.018539429,-0.049316406,-0.029190063,0.03173828,-0.003358841,0.0076293945,-0.012184143,0.0021419525,0.02104187,-0.010848999,0.0027332306,-0.0077285767,-0.0126571655,-0.006629944,0.0037078857,0.01158905,-0.0027370453,0.0015449524,0.031143188,0.0043182373,0.030822754,0.00724411,-0.0178833,0.025360107,0.020721436,-0.010910034,-0.006706238,0.023529053,0.008262634,0.0131073,0.022842407,0.012435913,-0.02368164,-0.002866745,0.0053215027,-0.004383087,0.0035076141,-0.011482239,-0.0043640137,-0.008918762,-0.002407074,0.0064811707,-0.031219482,0.026504517,-0.014518738,-0.029632568,-0.011657715,-0.022628784,0.0020561218,-0.007926941,0.009742737,0.028182983,0.008735657,0.06500244,0.00036549568,-0.0045547485,0.03994751,0.029006958,0.008216858,-0.024780273,0.012573242,0.004436493,0.009300232,0.01309967,-0.020355225,0.005458832,0.034240723,-0.0087509155,0.025878906,-0.020385742,0.010955811,-0.008026123,0.02784729,-0.006690979,-0.0023498535,-0.021621704,0.048736572,-0.030853271,0.011695862,0.027267456,-0.009017944,-0.006214142,-0.009902954,-0.03778076,0.043762207,0.005256653,-0.019042969,0.038879395,-0.0013494492,0.012992859,-0.031143188,-0.020736694,-0.0052375793,-0.036376953,-0.023284912,0.039001465,0.0087890625,0.00856781,0.02230835,-0.024368286,0.02571106,-0.038482666,0.018615723,0.0056762695,0.004070282,-0.031204224,-0.01889038,-0.032287598,-0.016845703,-0.029541016,-0.00057935715,-0.0060310364,0.032958984,0.04257202,0.007297516,0.019577026,0.0022201538,-0.00592041,-0.02494812,-0.013137817,0.0033111572,-0.03289795,-0.0154800415,-0.017410278,0.031463623,0.054840088,-0.003414154,0.018356323,0.0335083,0.015655518,0.00084352493,0.012184143,-0.0105896,0.014343262,-0.016525269,0.037078857,0.020462036,0.03353882,-0.022445679,0.019607544,0.0064353943,0.017974854,-0.02557373,0.025466919,0.07165527,0.031036377,-0.018112183,0.041931152,-0.0021419525,-0.02015686,-0.036834717,-0.021881104,0.06060791,0.02229309,0.04949951,0.035827637,0.0068092346,-0.0048828125,0.028930664,-0.025375366,-0.029037476,0.05239868,0.006099701,-0.010848999,-0.021194458,-0.016998291,0.0023612976,-0.04232788,-0.02319336,0.019577026,-0.023254395,0.010986328,-0.010223389,-0.0074501038,-0.0035934448,0.018844604,0.015914917,0.026504517,-0.023071289,0.016555786,0.019470215,0.01537323,0.026153564,0.017532349,0.028564453,-0.031585693,-0.01977539,-0.004512787,0.016601562,0.004299164,0.013259888,0.03173828,0.023803711,0.05441284,0.042938232,-0.012496948,-0.0038871765,0.03591919,0.0011463165,0.0007748604,0.038146973,0.038757324,0.009361267,0.031036377,0.039520264,0.018203735,-0.040008545,0.0032749176,0.008270264,0.013389587,-0.009132385,-0.03466797,0.0030918121,-0.0007953644,0.023223877,-0.0066833496,-0.010421753,0.030227661,0.036376953,0.00018107891,-0.0041275024,-0.0003015995,0.0090789795,0.002532959,0.0038337708,0.019897461,-0.021636963,0.020355225,0.016845703,0.026031494,-0.02973938,0.0178833,-0.0026855469,-0.016845703,-0.008155823,0.008285522,-0.0390625,0.023361206,-0.009147644,-0.00045084953,-0.02748108,0.022537231,0.0007376671,-0.0029258728,0.026321411,0.000344038,0.008514404,0.0154800415,0.019866943,0.011550903,-0.009544373,-0.0069007874,-0.016983032,0.01751709,0.045013428,0.0042037964,0.034851074,-0.015686035,0.002161026,0.02407837,-0.01083374,-0.017974854,-0.007843018,-0.020523071,-0.038848877,0.021697998,0.054840088,0.012428284,0.045135498,0.0042686462,-0.014770508,0.0110321045,0.0049438477,0.010848999,-0.002166748,-0.0075149536,0.011642456,-0.006134033,0.05166626,0.03756714,-0.010108948,0.02029419,-0.020217896,-0.012771606,-0.007701874,-0.028060913,0.016296387,-0.013542175,0.014320374,-0.019866943,0.021728516,-0.017532349,-0.034362793,0.007980347,-0.017211914,-0.018310547,-0.02645874,0.00907135,0.017791748,0.025177002,0.03060913,0.023330688,-0.021743774,0.070373535,-0.00091314316,0.056121826,-0.0043029785,0.0018081665,0.03640747,0.04586792,0.029083252,0.018218994,0.023742676,-0.020065308,0.0050239563,0.042663574,0.022399902,0.012794495,0.0012845993,-0.026245117,0.053619385,0.0026836395,0.01751709,-0.024429321,-0.0017967224,0.014518738,-0.006099701,0.0041618347,-0.0001642704,0.0013875961,0.017654419,0.04156494,-0.043395996,-0.024368286,-0.024261475,-0.01789856,0.037109375,-0.005504608,0.010551453,0.006717682,-0.019165039,0.016738892,-0.027557373,-0.0077209473,0.005191803,0.027023315,-0.02748108,-0.03314209,-0.0030727386,0.005962372,-0.017837524,0.021255493,0.018997192,-0.009986877,0.0019369125,0.052642822,-0.0059661865,0.0546875,-0.007980347,0.02279663,0.02911377,-0.010810852,-0.02532959,0.005203247,0.029830933,-0.007980347,0.011383057,0.044403076,-0.0073127747,-0.0007491112,-0.008216858,-0.033691406,0.012069702,0.004386902,-0.012336731,-0.0034503937,-0.0034046173,-0.014411926,0.0030174255,0.016906738,0.010116577,0.0006132126,-0.009712219,-0.008804321,0.009796143,0.03314209,0.013801575,-0.039245605,0.0069465637,-0.00058174133,-0.00040745735,-0.022949219,-0.013191223,0.005783081,-0.034820557,0.030929565,0.034942627,0.007911682,0.000018894672,-0.027770996,-0.001455307,0.029083252,0.020950317,0.025314331,0.01626587,-0.0035896301,0.020507812,-0.027557373,-0.010719299,-0.013504028,0.007686615,-0.005054474,0.013946533,-0.02268982,-0.018478394,0.03111267,0.005367279,0.007850647,0.01234436,-0.020004272,0.04168701,-0.030532837,-0.0135269165,0.0009007454,0.006828308,-0.0025520325,-0.019546509,-0.029876709,0.0158844,0.04953003,-0.01675415,0.0046539307,0.019866943,0.009147644,0.030807495,0.041534424,0.005722046,0.0413208,0.032928467,-0.01399231,-0.0053710938,0.014808655,-0.0044555664,-0.042816162,0.0184021,-0.011260986,-0.033691406,0.03277588,0.0014457703,-0.009681702,-0.028961182,-0.03414917,0.0011558533,-0.020004272,0.00623703,-0.017318726,0.0033817291,-0.017105103,-0.017837524,-0.010681152,0.0037021637,-0.047424316,-0.028396606,-0.011451721,-0.011642456,-0.04034424,-0.000050485134,-0.029403687,-0.004283905,-0.016174316,-0.013885498,-0.0032901764,0.03878784,-0.014183044,0.0021305084,0.012275696,0.039733887,-0.007904053,0.019989014,0.02166748,-0.014701843,-0.01977539,0.0010070801,-0.010856628,-0.023956299,0.029800415,-0.025299072,0.03427124,-0.003490448,-0.004070282,0.0012865067,-0.021133423,-0.00021076202,0.005138397,-0.024017334,-0.011047363,0.01725769,0.031555176,-0.01789856,0.0055656433,0.047454834,-0.014137268,-0.022781372,0.01802063,0.043945312,0.021560669,0.03994751,-0.008621216,-0.009086609,-0.021820068,0.0017614365,-0.013618469,0.008201599,0.008171082,0.008110046,-0.007865906,0.0011539459,0.013427734,-0.01007843,-0.0044059753,0.025253296,0.007080078,-0.024002075,0.041870117,0.012428284,0.0075569153,-0.019989014,-0.010749817,0.01889038,0.02696228,0.013580322,0.0074882507,-0.0126571655,0.0154800415,-0.010879517,0.0107421875,0.009056091,-0.018447876,-0.021026611,-0.015945435,-0.02420044,0.0079574585,-0.0011863708,0.021057129,0.0037174225,0.017822266,-0.009178162,-0.017990112,-0.004512787,0.011314392,0.0034599304,-0.003168106,-0.010650635,0.0017604828,0.019500732,-0.016021729,0.008560181,-0.04458618,-0.024673462,-0.012649536,-0.021240234,0.02720642,-0.003118515,-0.0143966675,0.0128479,-0.0028629303,0.00089740753,-0.005126953,0.05114746,-0.013038635,-0.006668091,0.013000488,0.017501831,-0.019302368,0.024383545,-0.025146484,-0.0124053955,0.025360107,-0.002664566,0.01335144,0.004840851,0.03994751,0.014633179,-0.004852295,0.029251099,0.0015211105,0.011688232,-0.00315094,-0.013290405,-0.0022697449,-0.009468079,0.012786865,-0.0158844,-0.025161743,0.0040016174,-0.021820068,-0.03781128,0.011756897,0.023071289,0.047943115,-0.01663208,0.042877197,-0.020904541,-0.025405884,0.0073623657,0.012672424,-0.027526855,-0.002462387,0.04107666,0.016525269,0.00027155876,-0.008399963,-0.020950317,-0.015350342,-0.0057754517,0.007007599,-0.016067505,-0.0023498535,0.0050086975,0.015960693,0.041503906,-0.010314941,0.0020141602,0.028900146,0.0146865845,0.026123047,-0.008125305,0.030090332,0.0022449493,-0.019989014,0.0019464493,0.0035037994,-0.008636475,-0.010253906,-0.008071899,0.010246277,-0.030059814,0.0143585205,-0.006504059,0.054534912,-0.02760315,0.008323669,-0.026138306,0.000582695,-0.034210205,0.0044822693,-0.024887085,0.010093689,0.036834717,0.0011310577,0.009101868,0.0025291443,-0.024749756,0.017700195,0.04736328,0.0057029724,-0.025161743,-0.012527466,0.010421753,0.002948761,0.00018084049,0.010276794,-0.02104187,-0.0131073,-0.0037612915,-0.0062408447,-0.004600525,-0.0012044907,0.0056648254,0.025238037,0.00687027,-0.0017719269,0.03427124,0.002729416,-0.001156807,-0.00084400177,0.005542755,0.027496338,0.037322998,-0.021438599,0.03604126,0.023422241,-0.018844604,0.052612305,-0.019851685,0.011009216,-0.026397705,-0.007896423,-0.024505615,-0.007434845,-0.0021018982,0.0062179565],"createdAt":"2026-04-18T18:56:24.073Z","updatedAt":"2026-04-22T18:32:18.193Z","lastSeenAt":"2026-04-22T18:32:18.193Z","tsv":"'/api':158 '/api/v1/stripe/subscriptions/148':91 '/docs':156 '/pricing':157 '/readme':159 '0.02':115,221 '000':110 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':125 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':132 '20':109 'Base network API' 'USDC API access' 'accept':135 'access':6,20,36,97,153,186 'actual':179 'address':124 'advertis':144 'ai/ml':61 'amount':107 'analyt':60 'api':5,19,35,56,96,146,185 'appear':161 'application/json':140 'base':8,22,86,111,127 'base-network' 'behind':181 'broader':47 'call':12,26,55 'challeng':78,103 'connect':166 'contain':168 'content':171 'contract':131 'crawl':174 'crypto-paid API' 'data':59,65 'detail':207 'document':154,208 'dozen':50 'endpoint':30,57,70,90,134,187,219 'exampl':205 'financ':63 'found':210 'function':180 'gate':3,17,75 'infer':62 'infrastructur':67 'instant':152 'json-api' 'key':147 'land':214 'limit':150 'list':93,216 'lowpaymentfee' 'lowpaymentfee.com':32 'made':122 'manag':200 'mani':217 'maximum':106 'may':195 'network':87 'none':224 'offer':49 'page':155,215 'paid':9,23 'part':44 'particular':227 'path':192,228 'pattern':229 'pay':53 'pay-per-cal':52 'pay-per-call' 'pay-per-call API' 'payment':40,81,120 'per':11,25,54,117 'per-cal':10,24 'platform':48,73,143,212 'post':136 'post-method' 'premium':4,18,34,95,184 'premium API' 'protocol':41 'provid':33 'rate':149 'relat':196 'request':118,137 'request/response':204 'requir':163 'respons':141 'result':177 'return':99,139 'schema':203 'settl':80 'share':225 'span':58 'specif':89,183 'stripe':198 'subscript':199 'substant':170 'suggest':193 'unclear':189 'unit':112 'url':191 'usd':116 'usdc':14,28,83,114,130 'usdc-settlement' 'use':128 'util':68 'valid':101 'via':37 'wallet':165 'web3':64 'x402':2,16,39,77,102 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"1620baf0-ee78-4324-b1c7-d12ea05d3709","listingId":"34b4491e-98ba-44ba-bf40-fd4e343d6b27","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/148","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:24.073Z"}],"sources":[{"listingId":"34b4491e-98ba-44ba-bf40-fd4e343d6b27","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/148","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:24.073Z","lastSeenAt":"2026-04-22T18:32:18.193Z"}],"details":{"listingId":"34b4491e-98ba-44ba-bf40-fd4e343d6b27","quickStartSnippet":"# The endpoint returns a 402 challenge. To access, include an X-PAYMENT header\n# with a valid x402 payment proof settling 0.02 USDC on Base.\ncurl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/148 \\\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":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/148"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/148"},{"claim":"Payment recipient is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/148"}],"useCases":["Accessing premium API functionality with per-call USDC micropayments on Base","Agent-driven API consumption without API keys or account registration","Programmatic access to gated services using x402 payment headers"],"bestFor":["Developers wanting keyless, pay-per-call API access","AI agents that can settle x402 payments in USDC on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users who need detailed API documentation before purchasing","Anyone without a Base-compatible USDC wallet","High-volume consumers who need bulk pricing or rate guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:49.839Z"},"updatedAt":"2026-04-22T18:32:18.193Z"}}