{"id":"eede1b0d-815a-4f13-ba00-4d9183a58d4f","shortId":"ZLqpGQ","kind":"x402","title":"Premium API subscription access via x402 payment on Base network using USDC.","tagline":"Premium API subscription access via x402 payment on Base network using USDC.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" subscription resource at the path `/api/v1/stripe/subscriptions/199`. It is part of a broader platform offering pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities—all gated behind x402 payment challenges settled in USDC on the Base network.\n\nThe specific subscription endpoint requires a one-time payment of $0.02 (20,000 base units of USDC with 6 decimals) via the x402 protocol. The platform advertises no API keys, no rate limits, and instant access once payment is confirmed. The x402 challenge uses the \"exact\" scheme, meaning the caller pays the precise amount specified.\n\nDocumentation on the site is extremely sparse—most pages beyond the landing page only show a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no detailed request/response schema, and no explanation of what the subscription endpoint actually returns or what \"Premium API Access\" entails beyond the name. The endpoint is live and responding with a valid x402 challenge.","tags":[],"capabilities":["x402-payment-gated","usdc-base-network","subscription-endpoint","pay-per-request","no-api-key-required"],"categories":["payments","infrastructure"],"synonyms":["x402 subscription","USDC API payment","Base network API","pay-per-call API","crypto-gated endpoint","lowpaymentfee"],"warnings":["No documentation available beyond landing page listing","No OpenAPI or schema describing request/response format","Unclear what 'Premium API Access' subscription actually provides or returns","All doc/pricing/API pages show only 'Connect wallet' with no content"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/199","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/199","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live with a valid x402 challenge, but documentation is nearly nonexistent. There is no OpenAPI spec, no request/response schema, and no explanation of what the subscription endpoint actually delivers. Most site pages render only a wallet connect prompt.","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":"2026-04-19T11:05:21.901Z","embedding":[-0.010643005,-0.01889038,0.025299072,0.013717651,0.032836914,-0.016296387,-0.022094727,0.062805176,0.05230713,-0.051757812,0.033721924,-0.04763794,-0.03857422,-0.04714966,-0.016296387,0.015586853,-0.009475708,0.023406982,-0.054473877,0.061584473,0.033813477,-0.019805908,-0.01008606,0.026107788,-0.0005335808,-0.021652222,-0.008384705,-0.018478394,-0.009292603,-0.032684326,0.033569336,-0.019332886,0.00084877014,0.022842407,0.0024299622,-0.014732361,0.01966858,0.064086914,0.027557373,-0.015686035,0.0045280457,-0.07714844,0.013267517,0.02192688,-0.03366089,0.022216797,0.011100769,-0.015151978,-0.0096588135,0.0011548996,-0.04876709,-0.008163452,-0.016983032,-0.012840271,0.0024986267,-0.0009508133,0.016571045,-0.009246826,-0.013114929,-0.0000680089,0.0005288124,-0.05697632,-0.019973755,-0.004611969,0.017059326,0.046051025,0.00038075447,0.046783447,0.0033569336,0.044677734,0.046813965,0.050842285,0.03692627,0.0074882507,0.005176544,-0.014923096,-0.01474762,0.07867432,-0.0019836426,-0.002828598,-0.00047445297,0.012756348,-0.04751587,0.00040721893,-0.021514893,-0.043029785,-0.032714844,0.016738892,-0.023849487,0.020339966,-0.045288086,-0.008361816,-0.024169922,0.011787415,0.0049972534,-0.0063934326,-0.030273438,0.010482788,-0.021209717,0.020202637,0.0039634705,-0.03463745,0.010574341,-0.0059890747,0.05215454,0.03945923,0.015335083,0.045898438,-0.009109497,-0.022872925,-0.015586853,0.015655518,-0.0033111572,-0.029663086,0.02571106,0.019927979,-0.012313843,0.011360168,-0.00008678436,0.021987915,-0.05609131,0.041229248,0.02645874,-0.01977539,0.014831543,-0.030517578,0.0005187988,0.008110046,-0.029800415,-0.01159668,0.034606934,0.012504578,0.009506226,-0.01828003,-0.019515991,-0.0015506744,-0.019882202,-0.045318604,-0.04324341,-0.039916992,0.035125732,-0.02116394,0.045959473,0.026931763,-0.08343506,-0.024124146,-0.05307007,0.01828003,-0.042999268,-0.004180908,-0.010292053,0.024032593,-0.015174866,-0.00756073,-0.022628784,-0.012519836,-0.002193451,0.036743164,-0.016281128,0.039916992,-0.00043463707,0.019989014,0.011352539,0.014122009,0.043548584,0.020401001,-0.0058898926,-0.079956055,-0.08380127,-0.009788513,0.0076789856,-0.019363403,-0.039794922,0.0058784485,0.01966858,-0.065979004,-0.021347046,-0.0023002625,0.0028324127,-0.052581787,0.010360718,-0.011932373,-0.0009756088,0.0038528442,-0.032440186,-0.01889038,-0.023834229,0.052215576,0.041992188,0.017425537,0.029968262,-0.019180298,0.04095459,0.009094238,-0.021560669,-0.042633057,0.0053138733,-0.012664795,0.03274536,0.0059051514,-0.0027008057,-0.034973145,0.0028038025,0.0803833,0.036102295,0.0016412735,0.006259918,-0.042266846,-0.033447266,-0.034118652,-0.004219055,0.00025749207,0.0041236877,0.04373169,-0.026382446,-0.0317688,-0.016494751,-0.0064964294,0.03314209,0.05117798,0.0041007996,-0.020111084,0.007511139,0.014572144,-0.03201294,0.03466797,0.038085938,0.03375244,-0.028335571,-0.027389526,0.00793457,0.036346436,-0.010978699,0.0038719177,-0.031402588,0.019851685,0.00037670135,0.010292053,0.026931763,-0.020446777,-0.034851074,-0.023147583,0.023422241,0.0446167,0.032440186,-0.031311035,-0.048339844,-0.064941406,0.033447266,0.041656494,0.048950195,0.006652832,-0.0031700134,-0.02558899,-0.0038661957,-0.06982422,0.044555664,0.062042236,-0.032562256,-0.00422287,0.018569946,-0.009552002,-0.038360596,-0.030929565,0.0039749146,0.00070762634,-0.012298584,0.020492554,-0.037597656,0.0060768127,0.009384155,0.016082764,0.06173706,-0.015098572,-0.030700684,-0.034484863,0.0039978027,0.0041236877,-0.028717041,0.0018806458,0.0040512085,-0.006729126,0.032562256,-0.01826477,0.023849487,-0.0019378662,0.021224976,-0.033935547,-0.018478394,-0.0335083,-0.036010742,0.013519287,-0.0038719177,-0.05126953,0.0023231506,-0.016860962,0.07116699,-0.034698486,0.031341553,-0.012893677,0.020904541,0.03555298,-0.0023498535,-0.034820557,0.006965637,0.02444458,0.037017822,0.046936035,0.011810303,-0.0056266785,-0.0006432533,0.043151855,-0.0067481995,-0.0046043396,0.016448975,0.019882202,0.022903442,-0.0015497208,-0.08673096,-0.04623413,-0.017623901,-0.023651123,0.015602112,-0.028915405,0.057769775,-0.025863647,-0.00056648254,-0.030227661,0.0015325546,-0.045318604,0.036102295,-0.041412354,-0.012557983,-0.013870239,-0.0140686035,0.013404846,0.034210205,-0.007904053,0.011810303,0.041900635,0.024459839,-0.020736694,-0.03302002,-0.0084991455,-0.026855469,0.0054244995,0.0077323914,0.0010700226,0.030441284,0.056671143,-0.064331055,0.006538391,0.039520264,0.0013484955,0.029724121,-0.0060272217,0.03338623,-0.052978516,-0.043060303,-0.031219482,-0.05581665,0.030822754,-0.0073928833,0.015808105,0.041381836,-0.015350342,-0.019989014,-0.033569336,0.028869629,-0.048736572,0.007637024,0.036315918,0.00409317,-0.024383545,-0.009475708,0.018997192,0.016830444,0.027130127,-0.00034713745,0.00034952164,0.07922363,0.047851562,0.0056037903,0.011550903,0.011528015,0.025009155,-0.012252808,-0.02180481,-0.03692627,-0.010055542,0.03074646,-0.032104492,-0.01890564,-0.08093262,0.055023193,0.025421143,0.045806885,0.020904541,0.018051147,0.049621582,0.011192322,0.009803772,-0.017120361,-0.0059127808,-0.02911377,-0.032348633,0.023880005,-0.028839111,-0.014381409,-0.00894928,0.012512207,-0.008285522,0.016494751,-0.028839111,0.0418396,0.033203125,0.0032043457,0.014198303,0.018035889,0.0579834,0.03567505,-0.035339355,0.046142578,0.01146698,-0.03186035,0.014320374,0.033721924,0.007698059,-0.033447266,-0.059387207,-0.022354126,-0.006954193,-0.0011482239,-0.060333252,0.0053215027,0.011878967,0.01071167,0.02494812,-0.031707764,-0.034973145,0.022598267,-0.037841797,-0.062927246,-0.024887085,-0.017990112,0.010353088,0.045318604,-0.03768921,-0.01689148,0.008018494,0.004711151,0.012481689,0.009941101,-0.008018494,0.00069093704,-0.04257202,0.013946533,-0.010223389,0.04019165,0.025115967,0.033569336,0.02708435,-0.002670288,0.048309326,0.018341064,-0.030273438,-0.034729004,0.0025901794,-0.025878906,-0.0027694702,0.0001604557,-0.0032596588,0.0005760193,0.007827759,-0.03353882,-0.041412354,0.00084400177,-0.02079773,0.015472412,0.032592773,-0.06304932,-0.018997192,-0.05053711,-0.004371643,-0.01651001,0.06994629,0.028747559,-0.007041931,-0.079833984,-0.020874023,0.0340271,0.0012741089,0.018615723,-0.013427734,-0.02268982,-0.022766113,-0.017196655,-0.0052604675,-0.019805908,0.028213501,0.013000488,-0.016082764,0.022750854,-0.0021858215,0.018569946,-0.01184082,0.0073661804,0.026565552,-0.015792847,0.000026524067,-0.035736084,0.016952515,0.012237549,-0.008407593,-0.05078125,0.05117798,-0.009506226,0.03189087,-0.023544312,0.010925293,-0.011505127,-0.0052223206,0.014923096,-0.0062561035,-0.009590149,0.011680603,-0.055419922,-0.09844971,0.021118164,-0.0055503845,0.011749268,-0.0026168823,0.021911621,0.026931763,0.008956909,0.003408432,0.020004272,-0.015670776,-0.0062713623,-0.03817749,-0.040985107,-0.015197754,0.005622864,-0.008003235,0.006866455,-0.0048828125,0.0023784637,-0.0082473755,-0.02218628,0.040924072,-0.00242424,-0.0005927086,0.031982422,0.005897522,0.025939941,0.04159546,-0.004371643,-0.03781128,0.008476257,-0.0027198792,-0.0184021,-0.01940918,0.03286743,0.025299072,-0.0010709763,-0.0029659271,0.010604858,-0.02758789,-0.017929077,-0.0017967224,0.0033912659,0.030654907,0.0026798248,-0.046691895,0.033172607,0.026031494,-0.02708435,-0.011627197,0.015686035,0.021575928,-0.017440796,0.028793335,0.0335083,0.061401367,-0.019577026,0.004749298,-0.00068473816,0.023071289,0.012054443,0.04055786,-0.01725769,0.0054740906,-0.021575928,0.011619568,-0.006385803,-0.018203735,0.007686615,-0.018585205,0.035247803,0.037078857,0.015823364,-0.020477295,-0.0033836365,-0.002357483,0.000477314,-0.0022716522,0.01889038,0.021759033,0.011245728,-0.019210815,0.026733398,0.008407593,-0.0368042,-0.0056037903,-0.0063591003,0.045410156,-0.02027893,-0.0075035095,0.013916016,0.014122009,0.032073975,-0.06738281,-0.0013170242,0.0033893585,0.006877899,-0.019989014,-0.03161621,-0.03652954,-0.0062065125,0.02645874,0.012306213,0.005065918,0.037139893,0.024246216,0.0041389465,0.02746582,-0.0015640259,-0.00699234,-0.0146484375,-0.054840088,-0.010726929,0.0058898926,0.0055236816,-0.021331787,0.010932922,-0.020401001,-0.011894226,0.01159668,-0.012321472,-0.006164551,0.0031795502,0.03149414,0.032592773,0.0034618378,0.0078048706,-0.006362915,-0.007598877,-0.0062713623,0.013282776,0.02746582,-0.032440186,0.021148682,-0.02078247,-0.0016994476,-0.013885498,0.0102005005,0.032196045,0.016357422,0.00069379807,0.019989014,-0.02368164,0.030303955,-0.044403076,0.0037956238,0.011009216,-0.035247803,0.004585266,-0.0368042,-0.011436462,0.028015137,-0.036376953,0.004169464,-0.018859863,-0.022491455,-0.01777649,-0.059631348,0.0050086975,0.03817749,0.034423828,-0.015945435,0.011665344,-0.011993408,0.0016336441,-0.01020813,0.007724762,-0.022781372,0.0084991455,0.025405884,0.016036987,-0.012878418,-0.014022827,-0.015533447,-0.015487671,-0.051452637,-0.044555664,-0.021377563,0.0059928894,-0.004020691,-0.0033111572,-0.036010742,-0.02444458,0.0027675629,-0.037322998,0.010246277,0.0035896301,0.032440186,0.01486969,-0.016433716,-0.02015686,0.026763916,-0.010620117,0.016082764,-0.01159668,-0.00021314621,-0.04623413,0.0005364418,0.055633545,0.022155762,0.016708374,-0.004486084,0.000641346,-0.01121521,-0.059448242,-0.010658264,0.00041890144,-0.010063171,-0.00021064281,-0.0030937195,-0.03314209,-0.012840271,-0.028335571,-0.008430481,0.020614624,0.023727417,0.031799316,-0.00080156326,-0.016143799,0.00068569183,-0.012939453,-0.043395996,0.025024414,0.009147644,0.014907837,0.008331299,0.051757812,-0.0021800995,-0.0053215027,0.015098572,-0.019683838,0.029373169,-0.014060974,-0.011878967,0.0069770813,0.015510559,-0.021820068,0.003118515,-0.042297363,0.009155273,0.09472656,-0.0045280457,-0.00046563148,0.0063095093,-0.007217407,0.03265381,0.025405884,-0.049438477,-0.0062065125,-0.02658081,0.02494812,0.0041923523,0.017623901,0.021316528,0.023895264,-0.019042969,-0.05206299,-0.019378662,0.011489868,-0.020202637,-0.059539795,-0.0070648193,-0.041656494,-0.0074806213,-0.016448975,-0.0046157837,0.0028572083,0.014305115,-0.012245178,-0.078125,0.003540039,0.042419434,0.015220642,0.03704834,-0.028839111,0.021194458,0.008110046,-0.017837524,-0.02217102,0.04284668,-0.029464722,-0.022842407,-0.026382446,0.04977417,-0.018325806,-0.0289917,0.025802612,0.0008535385,0.03326416,-0.001909256,0.0025081635,-0.022628784,0.027069092,-0.0017147064,0.01600647,-0.0047187805,-0.043640137,0.014144897,-0.048675537,0.0124435425,0.020553589,-0.006122589,-0.0046653748,0.037231445,0.029891968,-0.035491943,-0.013870239,0.045532227,0.00447464,0.050231934,-0.023010254,0.054718018,0.009902954,0.0011978149,0.01953125,-0.014030457,-0.028640747,-0.047790527,-0.019729614,0.014411926,0.00010102987,0.016296387,-0.00894928,-0.004360199,0.022491455,0.00038051605,-0.0021133423,-0.023864746,-0.013267517,-0.0016975403,0.006538391,0.0020771027,-0.011352539,-0.007045746,0.042877197,0.02053833,0.033111572,0.020019531,-0.022262573,0.032104492,0.026153564,-0.012954712,-0.004562378,0.023834229,0.0019931793,0.018127441,0.022537231,0.012825012,-0.044006348,-0.0028305054,-0.01751709,0.010749817,0.0038375854,-0.019134521,-0.001906395,-0.0050582886,-0.0032730103,0.017990112,-0.03793335,0.022354126,-0.031021118,-0.03161621,-0.013557434,-0.013793945,-0.0017366409,0.008911133,0.00027108192,0.027816772,-0.0026607513,0.06994629,0.003408432,-0.00026774406,0.028015137,0.028244019,0.006374359,-0.033569336,0.011894226,0.006385803,0.016067505,0.01525116,-0.017364502,0.022201538,0.03475952,-0.009216309,0.022445679,-0.01071167,0.018615723,-0.009742737,0.018692017,-0.01348114,0.008934021,-0.02583313,0.034118652,-0.043151855,0.0048828125,0.022064209,0.00166893,0.00058603287,-0.017166138,-0.026260376,0.032440186,0.005466461,-0.012542725,0.0446167,0.0067977905,0.015098572,-0.045440674,-0.023391724,-0.0073547363,-0.032409668,-0.016784668,0.029846191,0.0062942505,0.0077819824,0.019195557,-0.024307251,0.025939941,-0.04034424,0.020233154,0.013809204,0.014907837,-0.029388428,-0.014656067,-0.027389526,-0.008552551,-0.015571594,-0.002538681,-0.0055770874,0.05142212,0.03604126,0.012107849,0.027908325,-0.0003683567,0.0024909973,-0.030548096,-0.021957397,-0.0014629364,-0.037231445,-0.01878357,-0.012580872,0.046447754,0.046661377,-0.0027236938,0.023162842,0.029174805,0.029693604,0.014343262,0.007785797,-0.015525818,0.015716553,-0.013191223,0.03050232,0.013946533,0.022354126,-0.023620605,0.016860962,0.0055236816,0.021148682,-0.03552246,0.028884888,0.07196045,0.014724731,-0.019485474,0.038085938,0.0025730133,-0.025634766,-0.030700684,-0.016204834,0.068603516,0.01890564,0.04434204,0.033843994,-0.00024533272,0.0021762848,0.024169922,-0.02128601,-0.03427124,0.059143066,0.010620117,-0.010147095,-0.01940918,0.0022411346,-0.006954193,-0.03930664,-0.03086853,0.017501831,-0.0090789795,0.0035934448,0.008285522,0.000854969,-0.010894775,0.015960693,0.013809204,0.015411377,-0.0259552,0.038513184,0.022094727,0.022323608,0.020217896,-0.0004310608,0.032104492,-0.032226562,-0.01651001,-0.006526947,0.018676758,0.001991272,0.0040359497,0.030349731,0.009254456,0.046447754,0.04144287,-0.007598877,-0.0075569153,0.03286743,0.006904602,0.007083893,0.04928589,0.034332275,0.008911133,0.022705078,0.037078857,0.010253906,-0.04864502,0.00048542023,-0.0023422241,0.0116119385,-0.0075569153,-0.03100586,0.0015468597,-0.016143799,0.031799316,-0.010185242,-0.0034236908,0.02355957,0.028640747,-0.0015869141,0.0035209656,-0.010574341,0.0022735596,-0.009765625,0.00415802,0.013954163,-0.023025513,0.015411377,0.015098572,0.027786255,-0.02720642,0.011810303,-0.012084961,0.0011415482,-0.005180359,0.009849548,-0.035125732,0.006801605,-0.00957489,-0.000202775,-0.035247803,0.010314941,0.010536194,-0.01335144,0.022903442,0.016174316,-0.0056037903,0.011054993,0.024276733,0.0088272095,-0.005191803,-0.025314331,-0.017211914,0.024093628,0.035980225,0.0040893555,0.039611816,-0.015716553,-0.0077667236,0.020645142,-0.019638062,-0.023040771,-0.011482239,-0.016586304,-0.03390503,0.030715942,0.049865723,0.00217247,0.050720215,0.0023269653,-0.015411377,0.010276794,0.013290405,0.007736206,-0.004459381,-0.0003862381,0.017105103,-0.011772156,0.04650879,0.040649414,-0.009666443,0.017608643,-0.015960693,-0.012390137,-0.0072784424,-0.036132812,0.017425537,-0.013328552,0.0014324188,-0.014923096,0.019012451,-0.002401352,-0.024429321,0.002193451,-0.0209198,-0.014060974,-0.028244019,0.013534546,0.0058784485,0.028259277,0.031677246,0.014060974,-0.025939941,0.06335449,-0.009231567,0.04663086,-0.0075569153,0.012245178,0.03668213,0.028640747,0.03894043,0.022644043,0.025650024,-0.028793335,0.019607544,0.052856445,0.028533936,0.009437561,0.011817932,-0.033355713,0.046417236,0.00067567825,0.029663086,-0.02456665,-0.0023975372,0.011169434,-0.0031871796,0.006828308,0.0032444,-0.0044403076,0.022537231,0.04751587,-0.04397583,-0.017425537,-0.02708435,-0.016677856,0.035491943,0.0014820099,0.0009508133,0.003932953,-0.03125,0.017562866,-0.020950317,-0.0018539429,0.01512146,0.0335083,-0.03062439,-0.022277832,0.008087158,0.007286072,-0.032714844,0.01651001,0.025161743,-0.0070724487,0.0062446594,0.05596924,-0.008796692,0.062927246,0.013191223,0.02407837,0.028213501,-0.008155823,-0.025909424,0.008300781,0.025421143,-0.011238098,0.0046653748,0.038604736,-0.004714966,0.005794525,-0.0043182373,-0.035217285,0.009552002,0.018371582,-0.011047363,-0.012809753,-0.008544922,0.0011396408,0.0060806274,0.018035889,0.01184082,0.009269714,-0.002521515,-0.016098022,0.008964539,0.023788452,0.020751953,-0.03161621,0.018356323,-0.00969696,0.0017337799,-0.01638794,-0.0073242188,-0.005794525,-0.022521973,0.03375244,0.027313232,0.0071105957,-0.0028629303,-0.031463623,-0.0017614365,0.029571533,0.024810791,0.013381958,0.012901306,0.0018577576,0.014007568,-0.03387451,0.005657196,-0.012550354,-0.0014286041,-0.0011882782,0.012207031,-0.011482239,-0.025787354,0.034179688,0.0044784546,0.012916565,0.0078125,-0.02168274,0.031982422,-0.0141067505,-0.0036029816,-0.0011224747,0.0067596436,-0.007972717,-0.017028809,-0.025314331,0.01222229,0.049926758,-0.008979797,-0.0006299019,0.011276245,0.012992859,0.02255249,0.024597168,0.0044059753,0.04611206,0.035125732,-0.027282715,0.0009202957,0.014144897,-0.0067481995,-0.04067993,0.0013179779,-0.011184692,-0.019577026,0.025787354,-0.0014791489,-0.017150879,-0.032226562,-0.026931763,0.0006418228,-0.01651001,0.01008606,-0.022735596,0.0019292831,-0.012023926,-0.027633667,-0.0005645752,0.0017290115,-0.042999268,-0.025436401,-0.008506775,-0.012840271,-0.044433594,0.00096321106,-0.031219482,0.0062217712,-0.020202637,-0.01914978,0.0031318665,0.03375244,-0.027130127,0.009468079,0.013076782,0.028915405,0.00046515465,0.018722534,0.014091492,-0.024276733,-0.020050049,-0.0005893707,-0.018936157,-0.025436401,0.040740967,-0.01550293,0.036590576,0.0021591187,-0.008811951,-0.0047187805,-0.018676758,0.008041382,0.002073288,-0.01889038,-0.011581421,0.029022217,0.026779175,-0.023284912,0.007675171,0.046295166,-0.022064209,-0.027618408,0.02017212,0.042297363,0.013580322,0.034301758,-0.018051147,-0.013580322,-0.017318726,0.0043258667,-0.01586914,-0.0032081604,-0.0037250519,0.005126953,-0.014122009,-0.0138549805,0.015151978,-0.010955811,-0.0013084412,0.023925781,0.0059394836,-0.020111084,0.03652954,0.026184082,0.008636475,-0.019989014,-0.0129776,0.016174316,0.03665161,0.009429932,-0.007736206,-0.0143966675,0.0037250519,-0.0022392273,0.007083893,0.012931824,-0.012168884,-0.027816772,-0.025756836,-0.030273438,0.0211792,0.00042796135,0.023742676,-0.0075798035,0.015533447,-0.0062332153,-0.021469116,-0.005619049,0.01121521,-0.0011138916,-0.012710571,-0.00034189224,0.0010290146,0.024505615,-0.014785767,0.0178833,-0.04650879,-0.016433716,-0.014625549,-0.0075912476,0.03274536,0.01689148,-0.0064888,0.008018494,-0.0014257431,0.0039634705,-0.009239197,0.050872803,-0.006286621,-0.008651733,0.00793457,0.012214661,-0.023345947,0.021347046,-0.0069770813,-0.01071167,0.012397766,-0.01184845,0.017349243,-0.00043940544,0.038085938,0.018875122,-0.009811401,0.029693604,0.0040130615,0.018127441,-0.010856628,0.0036716461,0.002035141,-0.0041618347,0.01234436,-0.015838623,-0.01939392,0.0107803345,-0.027557373,-0.0368042,0.01424408,0.017822266,0.04244995,-0.016143799,0.027069092,-0.013931274,-0.022644043,0.011123657,0.004371643,-0.021743774,-0.008148193,0.041229248,0.0057907104,-0.0126571655,0.0031528473,-0.022262573,-0.01687622,-0.01687622,0.011985779,-0.018081665,-0.0006017685,0.012687683,0.021057129,0.035705566,0.0005784035,0.012046814,0.028564453,0.015655518,0.027633667,0.0049819946,0.038360596,0.005809784,-0.013595581,0.0055656433,0.004501343,-0.0045280457,-0.00034809113,0.012458801,0.011810303,-0.026489258,0.018676758,-0.0011262894,0.047424316,-0.032440186,0.00541687,-0.027313232,0.004863739,-0.025619507,0.008743286,-0.029251099,0.013771057,0.037628174,0.003856659,0.00548172,0.01499939,-0.024917603,0.02192688,0.05114746,-0.011924744,-0.018051147,-0.009796143,0.0070648193,-0.005592346,-0.004058838,0.014694214,-0.010185242,-0.017501831,-0.0006761551,-0.009414673,-0.0035152435,0.004497528,0.0073051453,0.011550903,0.00017440319,-0.010467529,0.021438599,0.0005354881,0.0010137558,-0.0038089752,0.00623703,0.029266357,0.035827637,-0.0209198,0.044525146,0.029449463,-0.023788452,0.047729492,-0.022277832,0.01725769,-0.025238037,-0.0032691956,-0.029220581,-0.00078868866,-0.0064849854,-0.004634857],"createdAt":"2026-04-18T18:56:44.035Z","updatedAt":"2026-04-22T13:31:38.510Z","lastSeenAt":"2026-04-22T13:31:38.510Z","tsv":"'/api/v1/stripe/subscriptions/199':39 '0.02':87 '000':89 '20':88 '6':95 'Base network API' 'USDC API payment' 'access':4,16,33,112,178 'actual':172 'advertis':103 'ai/ml':56 'amount':130 'analyt':55 'api':2,14,32,52,105,177 'base':9,21,74,90 'behind':65 'beyond':141,180 'broader':45 'caller':126 'challeng':68,119,193 'confirm':116 'connect':148 'content':154 'crypto-gated endpoint' 'data':54,59 'decim':96 'detail':161 'document':132 'endpoint':26,79,171,184 'entail':179 'exact':122 'explan':166 'extrem':137 'finance/web3':58 'gate':64 'infer':57 'infrastructur':61 'instant':111 'key':106 'land':143 'limit':109 'live':186 'lowpaymentfee' 'lowpaymentfee.com':28 'mean':124 'name':182 'network':10,22,75 'no-api-key-required' 'offer':47 'one':83 'one-tim':82 'openapi':158 'page':140,144 'part':42 'path':38 'pay':49,127 'pay-per-call API' 'pay-per-request':48 'payment':7,19,67,85,114 'per':50 'platform':46,102 'precis':129 'premium':1,13,31,176 'prompt':150 'protocol':100 'provid':29 'rate':108 'request':51 'request/response':162 'requir':80 'resourc':35 'respond':188 'return':173 'schema':163 'scheme':123 'settl':69 'show':146 'site':135 'span':53 'spars':138 'spec':159 'specif':77 'specifi':131 'subscript':3,15,34,78,170 'subscription-endpoint' 'time':84 'unit':91 'usdc':12,24,71,93 'usdc-base-network' 'use':11,23,120 'util':62 'valid':191 'via':5,17,97 'wallet':149 'x402':6,18,66,99,118,192 'x402 subscription' 'x402-payment-gated'","prices":[{"id":"6adb1eaa-5d29-4c52-a6cc-780aab8fed06","listingId":"eede1b0d-815a-4f13-ba00-4d9183a58d4f","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/199","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:56:44.035Z"}],"sources":[{"listingId":"eede1b0d-815a-4f13-ba00-4d9183a58d4f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/199","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:56:44.035Z","lastSeenAt":"2026-04-22T13:31:38.510Z"}],"details":{"listingId":"eede1b0d-815a-4f13-ba00-4d9183a58d4f","quickStartSnippet":"# Send a POST with x402 payment header to access the subscription endpoint\ncurl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/199 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <your-x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/199"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/subscriptions/199"}],"useCases":["Purchasing premium API access without traditional API key registration","Programmatic subscription activation via crypto payment","Agent-driven access to gated resources using x402 protocol"],"bestFor":["Developers wanting keyless API access via crypto micropayments","AI agents that can settle x402 challenges on Base","Users who prefer pay-as-you-go without accounts or commitments"],"notFor":["Users needing detailed documentation or OpenAPI specs before integrating","Those without USDC on Base network","Applications requiring guaranteed SLAs or support contracts"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:48.917Z"},"updatedAt":"2026-04-22T13:31:38.510Z"}}