{"id":"f9b8bf91-d67f-485e-a6ee-895b415099ad","shortId":"DFbfZL","kind":"x402","title":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.","tagline":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, settled in USDC on the Base network, with no API keys, no rate limits, and no commitments required.\n\nThe specific resource at `/api/v1/generate/resource/133` is labeled \"Premium API Access\" but its exact functionality is not documented beyond that title. The x402 challenge confirms it is live, accepts POST requests, and charges a maximum of 20,000 base units of USDC (i.e., $0.02) per call. Payment is made via the x402 exact scheme to the specified wallet address, with a 300-second timeout window. The response MIME type is application/json.\n\nThe broader platform advertises endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and generation — all at the same $0.02 price point. However, documentation pages (docs, pricing, README) returned only a \"Connect wallet\" prompt with no further technical detail, so the actual request/response schemas for this or any endpoint remain unknown.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-settlement","base-network","json-response","no-api-key","no-rate-limit"],"categories":["infrastructure","general"],"synonyms":["lowpaymentfee","low payment fee API","x402 API","pay-per-call API","micropayment API","USDC API","Base network API","premium API access"],"warnings":["The exact functionality of /api/v1/generate/resource/133 is not documented; 'Premium API Access' is the only description available.","All documentation pages (/docs, /pricing, /README, /api) returned only 'Connect wallet' with no technical content.","No request or response schema is available for this endpoint.","The broader platform lists many endpoints but none have documented schemas or example payloads."],"endpointUrl":"https://lowpaymentfee.com/api/v1/generate/resource/133","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/generate/resource/133","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 402 challenge, confirming pricing and payment details. However, the actual functionality behind \"Premium API Access\" at resource/133 is completely undocumented — no request schema, no response schema, no examples, and all documentation pages return only a wallet-connect prompt. The listing is essentially a stub with confirmed liveness but unknown utility.","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":"2026-04-18T23:19:16.447Z","embedding":[-0.01789856,-0.02960205,0.0519104,0.023971558,0.020812988,-0.035736084,-0.023513794,0.035858154,0.07519531,-0.070617676,0.02949524,-0.03640747,-0.03366089,-0.028076172,-0.025100708,0.0030555725,-0.021408081,-0.001912117,-0.0519104,0.027191162,0.04244995,-0.008239746,-0.032440186,0.03744507,0.012825012,-0.025650024,0.0038661957,-0.0071029663,-0.0038375854,-0.03137207,0.02166748,-0.029922485,0.004337311,0.021820068,-0.008888245,-0.008277893,-0.0035877228,0.041015625,0.03378296,-0.011657715,-0.009437561,-0.06707764,-0.0010566711,0.0023498535,-0.05480957,0.005695343,0.008338928,-0.026367188,-0.02746582,0.004585266,-0.04498291,-0.009353638,-0.01007843,-0.008766174,0.0034828186,0.0016365051,-0.0209198,-0.015930176,-0.0011796951,0.0093688965,0.0018987656,-0.061065674,-0.0075416565,0.008270264,0.009788513,0.04949951,-0.0013513565,0.040130615,0.0077667236,0.05508423,0.036987305,0.044403076,0.03970337,0.014801025,0.005607605,0.005203247,0.009475708,0.06951904,-0.018341064,-0.006664276,-0.0031547546,0.00093078613,-0.049224854,0.0025234222,-0.014099121,-0.057403564,-0.015068054,0.017807007,-0.012313843,0.0362854,-0.07562256,-0.010787964,-0.010902405,0.022262573,-0.013206482,0.0155181885,-0.0018053055,0.020233154,-0.007095337,0.021881104,0.017944336,-0.035461426,0.023712158,0.02758789,0.045898438,0.04196167,0.006252289,0.02709961,0.0013303757,-0.01222229,-0.018692017,-0.00026750565,-0.018844604,-0.014976501,0.015350342,-0.0030784607,-0.019134521,0.014549255,-0.019882202,0.023880005,-0.05218506,0.056610107,0.028839111,-0.019104004,0.01576233,-0.048095703,-0.019073486,0.0051498413,-0.030563354,-0.0064735413,0.02470398,0.01638794,0.036987305,-0.022201538,-0.03817749,0.0038795471,-0.015701294,-0.042510986,-0.05380249,-0.02230835,0.0345459,-0.03768921,0.019958496,0.03149414,-0.08850098,-0.022415161,-0.061706543,0.007873535,-0.03955078,0.00043606758,-0.008934021,0.029083252,-0.02418518,-0.008773804,-0.005836487,-0.02923584,-0.015960693,0.03994751,-0.020339966,0.046783447,-0.0035324097,0.043884277,0.011703491,0.0071487427,0.017791748,0.037322998,0.0053863525,-0.08856201,-0.0869751,-0.02243042,0.00806427,-0.012168884,-0.050323486,0.000060856342,0.0014009476,-0.09863281,-0.050109863,-0.0019931793,-0.005214691,-0.031677246,-0.0054092407,-0.01739502,-0.0047950745,-0.01461792,-0.055145264,-0.030899048,-0.0234375,0.060180664,0.033233643,0.0070648193,0.028915405,-0.019439697,0.059692383,0.022766113,-0.010986328,-0.047302246,0.020904541,-0.021133423,0.024673462,0.0044670105,0.008232117,-0.029953003,0.03488159,0.04284668,0.0037975311,-0.0004348755,-0.000083982944,-0.044067383,-0.028152466,-0.035827637,0.0020713806,0.01776123,0.00207901,0.03768921,-0.026443481,-0.030273438,-0.00037574768,0.021957397,0.022354126,0.06854248,-0.009857178,-0.00340271,0.0115356445,0.0121154785,-0.044647217,0.03945923,0.024124146,0.023391724,-0.029052734,-0.022033691,0.032348633,0.041503906,-0.029266357,-0.011352539,-0.025741577,0.019256592,-0.004524231,0.011413574,0.0345459,-0.022598267,-0.0256958,-0.035583496,-0.011772156,0.034179688,0.011886597,-0.020935059,-0.05508423,-0.08605957,0.052612305,0.044189453,0.01940918,-0.011428833,0.008239746,-0.017028809,-0.001156807,-0.06866455,0.053131104,0.08026123,-0.004573822,-0.00856781,0.032409668,-0.01625061,-0.036468506,-0.0025901794,0.0015802383,-0.02027893,-0.03137207,0.014816284,-0.05090332,0.009750366,0.0048446655,0.02532959,0.05142212,-0.015350342,-0.05355835,-0.022491455,0.018539429,0.004776001,-0.033050537,0.009727478,-0.008522034,0.013381958,0.04916382,0.0026550293,0.019241333,-0.0032157898,0.01725769,-0.008369446,-0.01663208,-0.04006958,-0.006996155,0.015464783,-0.002937317,-0.08099365,0.016174316,-0.001958847,0.056762695,-0.03640747,0.031219482,-0.006717682,0.021728516,0.042236328,-0.0059661865,-0.05718994,-0.006877899,0.03579712,0.042633057,0.032287598,0.019805908,-0.014221191,-0.012420654,0.057037354,-0.013793945,-0.009300232,0.012420654,0.028335571,0.02796936,-0.0070228577,-0.06359863,-0.04043579,-0.002073288,-0.028625488,0.02897644,-0.03652954,0.03111267,-0.023132324,0.007835388,-0.024337769,0.0021762848,-0.039886475,0.021408081,-0.009262085,0.018234253,-0.0050201416,-0.012992859,0.0004286766,0.020568848,-0.01890564,0.0012483597,0.02960205,0.011146545,-0.012771606,-0.025268555,-0.029312134,-0.008987427,0.0017213821,0.02809143,0.037719727,0.01638794,0.040618896,-0.035491943,0.02619934,0.031341553,0.012550354,0.03805542,-0.011062622,0.023849487,-0.04385376,-0.05255127,-0.01725769,-0.05227661,0.040130615,0.020721436,0.009651184,0.049102783,0.0055007935,-0.015945435,-0.018814087,0.023757935,-0.038238525,-0.00258255,0.04547119,0.00040912628,-0.029312134,0.00008106232,0.005279541,0.008476257,0.050964355,0.00756073,0.009246826,0.07220459,0.051635742,0.005428314,0.009407043,0.010284424,0.033966064,-0.0034885406,-0.037475586,-0.03378296,-0.0069389343,0.018447876,-0.028808594,-0.024414062,-0.06185913,0.053497314,0.029846191,0.0703125,0.012931824,0.008583069,0.02859497,-0.010032654,0.0074882507,-0.020309448,-0.010498047,-0.023071289,-0.03982544,0.01979065,-0.0035381317,0.0035915375,-0.02053833,0.0256958,0.013931274,0.016784668,-0.028015137,0.056030273,0.012229919,-0.009101868,0.01424408,0.006263733,0.046539307,0.037902832,-0.04083252,0.03479004,0.012039185,-0.0309906,-0.008995056,0.031799316,0.007987976,-0.02670288,-0.050933838,-0.031799316,-0.009635925,-0.004524231,-0.057373047,-0.009780884,0.0006814003,0.023773193,0.025222778,-0.005783081,-0.03414917,0.008361816,-0.0041160583,-0.0574646,-0.0124435425,-0.040496826,0.00447464,0.04623413,-0.029632568,0.0029182434,0.0019950867,-0.01373291,0.00274086,0.02583313,-0.007774353,-0.010559082,-0.054534912,0.023239136,0.005203247,0.013519287,0.03074646,0.030212402,0.035980225,0.005142212,0.045440674,0.0036640167,-0.024795532,-0.05709839,0.00038266182,-0.042633057,-0.0033111572,-0.011451721,-0.017990112,-0.015106201,-0.006576538,-0.019515991,-0.024490356,0.015853882,-0.04711914,0.021469116,0.027511597,-0.036071777,-0.030563354,-0.055389404,-0.01939392,-0.0034713745,0.07458496,0.032073975,-0.0052604675,-0.05911255,-0.0309906,0.034606934,0.0047187805,0.008110046,-0.015144348,-0.009269714,-0.009994507,-0.03741455,-0.030715942,-0.030899048,0.027008057,-0.003042221,-0.017150879,0.012176514,-0.0032196045,0.015350342,-0.008010864,0.013076782,0.031341553,-0.019638062,-0.00010293722,-0.018707275,0.020980835,-0.0026130676,-0.004558563,-0.0368042,0.046417236,0.011924744,0.048217773,-0.032348633,0.0062332153,0.0018119812,0.021087646,0.018005371,-0.009094238,-0.023712158,-0.0025196075,-0.050811768,-0.07873535,0.034454346,-0.036376953,0.034576416,0.010559082,0.011276245,0.02973938,-0.006767273,0.0020866394,0.029129028,-0.031219482,-0.016220093,-0.030456543,-0.043945312,0.009094238,-0.0019950867,-0.0107040405,0.0071372986,-0.018829346,-0.0022716522,-0.015304565,-0.02381897,0.02722168,0.008590698,-0.0076141357,0.035980225,0.008979797,0.017486572,0.05407715,0.011489868,-0.028686523,0.014381409,0.0011081696,0.000043034554,-0.0038166046,0.042633057,0.017456055,-0.0287323,-0.0075798035,-0.012168884,-0.0007982254,-0.027328491,-0.013092041,-0.00015592575,0.029693604,0.01285553,-0.037506104,0.021896362,0.019836426,-0.021026611,-0.015853882,0.024520874,0.026229858,-0.028808594,0.02166748,0.023986816,0.052124023,-0.031341553,0.006832123,0.007091522,0.023513794,0.01335144,0.01890564,-0.024673462,0.016967773,-0.022018433,0.0007805824,0.0051727295,-0.011108398,0.010383606,-0.0023002625,0.0008111,0.025360107,0.022354126,-0.021072388,-0.0418396,0.012916565,-0.0017557144,-0.009178162,0.023605347,0.022109985,0.0054740906,-0.035736084,0.010055542,0.01878357,-0.037597656,-0.024871826,-0.006340027,0.05480957,-0.008293152,-0.0044136047,0.02243042,0.0056991577,0.02748108,-0.056762695,-0.011138916,0.004245758,0.02432251,-0.02116394,-0.05014038,-0.036193848,-0.0029010773,0.034179688,0.0099105835,0.009857178,0.025848389,-0.0075416565,-0.001584053,0.03074646,0.003047943,-0.0067977905,-0.02229309,-0.05581665,-0.0037117004,-0.011924744,0.0025539398,-0.03173828,0.009521484,-0.011619568,-0.031555176,0.0036735535,-0.007980347,-0.0030384064,-0.016174316,0.009567261,0.033966064,0.005256653,0.020980835,-0.015602112,-0.01272583,-0.0025024414,-0.0031757355,0.018722534,-0.04977417,0.020095825,-0.021255493,-0.0074424744,-0.0066184998,0.023666382,0.019683838,0.018997192,-0.0020160675,0.032592773,-0.046813965,0.031707764,-0.04159546,0.014846802,-0.00088214874,-0.03503418,-0.010688782,-0.03125,-0.015640259,0.03527832,-0.021743774,-0.002292633,-0.03451538,-0.013008118,-0.004627228,-0.042663574,0.014907837,0.03201294,0.039764404,-0.03375244,-0.0057525635,0.0007071495,0.0006432533,-0.007472992,0.014350891,-0.011871338,0.009841919,0.022644043,-0.0026950836,-0.027328491,-0.03652954,-0.004386902,-0.0038032532,-0.041778564,-0.03692627,-0.018157959,0.010810852,-0.014709473,0.00630188,-0.01878357,-0.01651001,-0.008995056,-0.03277588,0.01158905,0.008049011,0.017150879,0.018692017,-0.020874023,0.011871338,0.020431519,-0.017868042,0.034240723,0.0062294006,-0.013404846,-0.05267334,0.0036849976,0.03881836,0.015670776,-0.014671326,-0.010803223,-0.0020694733,-0.020645142,-0.05783081,-0.0115356445,-0.0039978027,-0.00674057,-0.000047504902,0.0017375946,-0.048339844,-0.012542725,-0.022827148,0.002878189,0.015670776,0.031311035,0.020248413,-0.005706787,0.01322937,-0.018188477,-0.0038890839,-0.032226562,0.020492554,0.011116028,0.0030536652,0.013633728,0.044036865,0.0132369995,-0.0029392242,-0.003944397,0.0004339218,0.012374878,-0.01537323,0.007724762,-0.011787415,0.006111145,-0.0043678284,-0.013786316,-0.032043457,0.0033283234,0.06994629,-0.0072746277,-0.00089120865,-0.011199951,-0.004020691,0.01763916,0.0155181885,-0.058166504,-0.0058403015,-0.037353516,0.020568848,-0.011932373,0.01940918,0.0017232895,0.0057296753,-0.017837524,-0.06222534,-0.013771057,0.0053863525,-0.003080368,-0.05984497,-0.02897644,-0.053619385,0.0015306473,-0.010925293,-0.027130127,0.0039978027,0.018188477,-0.018554688,-0.08807373,0.00024044514,0.05114746,-0.005596161,0.018447876,-0.028182983,0.01499939,0.03265381,-0.029876709,-0.020507812,0.028778076,-0.02809143,-0.018508911,-0.026000977,0.025650024,-0.011474609,-0.032440186,0.014671326,0.009117126,0.022735596,-0.007369995,0.012916565,-0.004837036,0.018356323,-0.014038086,0.010925293,-0.003282547,-0.013458252,0.019836426,-0.03793335,0.019226074,0.02178955,0.00774765,-0.002412796,0.015014648,0.03753662,-0.045654297,-0.0034923553,0.053771973,0.013069153,0.042816162,-0.03564453,0.055725098,0.02041626,-0.02355957,0.036895752,-0.0070495605,-0.036468506,-0.03692627,-0.026367188,0.019195557,0.013877869,0.028701782,-0.019622803,-0.0028266907,0.041625977,-0.0012893677,0.002462387,-0.018508911,-0.021957397,-0.018707275,0.012886047,-0.0035381317,-0.0041046143,0.008087158,0.01739502,0.017593384,0.041656494,0.0102005005,-0.012908936,0.019561768,0.02407837,-0.020614624,0.008995056,0.021270752,0.00434494,0.03652954,0.025268555,0.013267517,-0.03567505,-0.023895264,-0.035095215,-0.008232117,0.0069122314,-0.004020691,0.003736496,0.005428314,0.002632141,0.0032043457,-0.025985718,0.019821167,-0.04888916,-0.02357483,-0.000541687,-0.021469116,0.0002822876,0.006767273,0.008811951,0.014778137,-0.004058838,0.052825928,0.007003784,-0.011177063,0.018493652,0.036987305,0.025421143,-0.033172607,-0.010810852,-0.01259613,-0.00919342,0.006011963,-0.023971558,0.020858765,0.04385376,-0.020355225,0.012069702,-0.005168915,0.012168884,-0.00983429,0.021392822,0.00730896,0.01448822,-0.023040771,0.02168274,-0.047058105,0.00086545944,0.020874023,0.0002272129,-0.00043153763,-0.0262146,-0.035247803,0.013877869,-0.0025691986,-0.019851685,0.0435791,-0.0066375732,0.019073486,-0.02154541,-0.02330017,0.017303467,-0.03253174,-0.01499176,0.042877197,-0.010505676,-0.012779236,0.006198883,-0.015106201,0.039123535,-0.033843994,0.007408142,0.0019197464,-0.006713867,-0.02482605,-0.0234375,-0.024795532,0.008026123,-0.010772705,-0.0070381165,-0.003107071,0.03527832,0.035858154,0.034484863,0.031463623,0.024520874,0.0068588257,-0.04324341,-0.027404785,0.005760193,-0.02947998,0.016693115,-0.023361206,0.046142578,0.046203613,-0.006111145,0.033203125,0.0289917,0.027511597,0.007320404,-0.0010414124,-0.01586914,0.014259338,-0.0077209473,0.025009155,0.01083374,0.04144287,-0.024261475,0.008239746,-0.0021953583,0.02545166,-0.030792236,0.027664185,0.07397461,0.022705078,-0.01171875,0.03604126,-0.0027828217,-0.0065307617,-0.0110321045,-0.019866943,0.04751587,0.00035715103,0.04928589,0.022140503,0.00705719,-0.015304565,0.020965576,-0.019943237,-0.026519775,0.05984497,0.034301758,-0.016296387,-0.009246826,-0.006210327,0.008049011,-0.052734375,-0.030090332,0.012962341,0.0016355515,0.012535095,-0.022064209,-0.009407043,-0.014091492,0.03314209,0.015106201,0.0028438568,-0.011260986,0.023651123,0.029876709,0.011123657,0.028259277,-0.0042419434,0.03060913,-0.024032593,-0.010131836,0.015296936,0.01940918,-0.004058838,-0.004699707,0.02848816,0.01499939,0.05947876,0.03741455,-0.007698059,0.0043907166,0.018203735,0.022262573,0.009849548,0.030776978,0.031707764,0.024749756,0.029312134,0.04119873,0.029388428,-0.031341553,0.019729614,-0.007801056,0.00381279,-0.0019721985,-0.0155181885,0.0035419464,-0.018295288,0.027755737,0.011482239,-0.00844574,0.031219482,0.028518677,0.0008211136,0.0015411377,0.0041542053,0.010749817,-0.004852295,0.008399963,0.013633728,-0.01134491,0.02418518,0.012290955,0.04046631,-0.02079773,0.021652222,-0.008041382,-0.028884888,-0.006385803,0.011711121,-0.04083252,0.004917145,-0.014892578,-0.0062675476,-0.032348633,0.018081665,0.01991272,-0.008728027,0.035003662,0.002670288,-0.011054993,-0.007911682,0.02394104,0.0038833618,-0.0035095215,-0.0084991455,-0.021392822,0.037628174,0.04534912,0.009651184,0.010635376,-0.023284912,0.0038890839,0.006702423,-0.013336182,-0.0043792725,-0.008270264,-0.020614624,-0.021118164,0.0062675476,0.043884277,0.023345947,0.043121338,-0.008232117,-0.018829346,0.0044403076,0.02897644,0.004547119,0.006866455,-0.0045051575,0.028045654,-0.01524353,0.044525146,0.033569336,-0.0045318604,0.028335571,-0.012588501,-0.0039787292,0.0035972595,-0.018737793,0.026443481,-0.0052108765,0.013381958,-0.022354126,0.023010254,-0.01977539,-0.030700684,-0.001206398,-0.014671326,-0.011367798,-0.026397705,0.0030822754,0.007209778,0.018188477,0.03817749,0.017990112,-0.017562866,0.063964844,-0.0146865845,0.0463562,-0.011756897,-0.00055360794,0.05581665,0.045654297,0.033203125,0.021118164,0.014884949,-0.02973938,-0.0016527176,0.041900635,0.027267456,0.016174316,0.0040740967,-0.018371582,0.029266357,-0.0012760162,0.02482605,0.0019721985,0.0065078735,0.016738892,-0.010910034,-0.003080368,0.0026016235,-0.0051002502,0.01651001,0.050872803,-0.034057617,-0.005317688,-0.023956299,-0.010650635,0.03048706,-0.0008330345,0.0034255981,0.0007967949,-0.025161743,0.01071167,-0.022918701,-0.00995636,0.0015525818,0.03024292,-0.026123047,-0.011459351,0.005531311,0.02217102,-0.03543091,0.022903442,0.012962341,-0.0060768127,0.016647339,0.04949951,-0.008834839,0.047180176,-0.021514893,0.018676758,0.035583496,0.0029392242,-0.025100708,0.0019607544,0.0024681091,-0.01713562,0.0055389404,0.034179688,-0.018127441,0.012367249,0.0026893616,-0.009437561,0.011795044,0.013084412,-0.013214111,0.0042381287,-0.0098724365,-0.009887695,0.007648468,0.0121536255,0.002166748,-0.003030777,-0.0073165894,-0.014038086,-0.001709938,0.026992798,0.016525269,-0.042663574,0.0014343262,0.011581421,0.019302368,-0.015266418,-0.024093628,-0.019210815,-0.03338623,0.031707764,0.020812988,-0.0038967133,0.0063323975,-0.018859863,0.004295349,0.025024414,-0.0010232925,0.012680054,0.007282257,-0.003484726,0.010322571,-0.020828247,-0.012420654,-0.018066406,-0.00308609,0.007297516,0.017791748,-0.01689148,-0.03390503,0.015464783,-0.004085541,0.012290955,0.0034484863,-0.018753052,0.031433105,-0.015640259,-0.021759033,0.012390137,0.021011353,-0.006904602,-0.00390625,-0.029266357,0.024002075,0.047943115,-0.014846802,0.0025844574,0.0014028549,0.0135650635,0.01979065,0.03161621,0.018630981,0.03302002,0.021469116,-0.023071289,-0.026489258,0.029769897,-0.019241333,-0.037261963,0.019958496,0.001953125,-0.016784668,0.021118164,0.012931824,-0.0023288727,-0.02558899,-0.009468079,-0.013214111,-0.02116394,0.01727295,-0.018096924,0.009277344,-0.032165527,-0.004589081,0.00018846989,-0.018051147,-0.03677368,-0.022262573,-0.0020751953,-0.009651184,-0.043395996,0.005077362,-0.018539429,-0.0020160675,-0.02053833,0.003282547,-0.00699234,0.03942871,-0.02192688,-0.0029792786,-0.0007991791,0.027359009,0.013389587,0.006122589,0.03161621,-0.012290955,-0.031204224,-0.013664246,-0.0016345978,-0.015319824,0.016174316,-0.01197052,0.04147339,0.012939453,-0.0034923553,-0.00049591064,-0.014381409,-0.0058250427,-0.00983429,-0.04144287,-0.020629883,0.01512146,0.02267456,-0.012168884,-0.00687027,0.041503906,-0.017425537,-0.020202637,0.016296387,0.04748535,0.005771637,0.032562256,-0.016723633,-0.005504608,-0.010795593,-0.0004196167,-0.008613586,0.0000030398369,0.022323608,0.0023288727,0.00038957596,0.00047254562,0.026489258,-0.023040771,0.004951477,0.020568848,-0.0040016174,-0.020111084,0.0368042,0.0184021,-0.0024604797,-0.016357422,-0.01777649,0.0262146,0.038757324,0.019805908,0.00868988,0.002149582,0.0059890747,-0.00579834,0.013069153,0.026062012,-0.025146484,-0.01966858,-0.016601562,-0.027328491,0.022125244,0.0023059845,0.013679504,0.0009021759,0.017486572,-0.01361084,-0.020599365,-0.021621704,0.022262573,0.002111435,-0.014274597,-0.013023376,-0.004119873,0.015350342,-0.0236969,0.0017356873,-0.043426514,-0.019607544,-0.013664246,-0.024871826,0.0069122314,0.008117676,-0.0037899017,0.0055389404,0.011024475,-0.007408142,0.004928589,0.024047852,-0.018585205,-0.004852295,0.022872925,0.01576233,-0.014945984,0.007850647,-0.003458023,-0.0082473755,0.016860962,-0.0018568039,0.010131836,-0.026748657,0.028869629,0.005962372,0.00027751923,0.03604126,-0.0034160614,0.0062294006,-0.018188477,0.0032482147,-0.0040283203,-0.00080156326,0.030166626,-0.016311646,-0.032287598,0.015930176,-0.025741577,-0.034240723,-0.0029792786,0.031555176,0.04095459,-0.01184082,0.045440674,-0.0134887695,-0.003993988,0.007858276,0.008918762,-0.0124053955,-0.006298065,0.043640137,-0.007633209,-0.002714157,0.004634857,-0.009399414,-0.032989502,-0.012825012,0.010627747,-0.00048208237,-0.009857178,0.023895264,0.013122559,0.038726807,-0.00548172,0.01890564,0.008514404,0.003944397,0.02508545,0.009902954,0.04019165,-0.0049209595,-0.02154541,0.00819397,0.0049057007,-0.018188477,0.0006351471,-0.008338928,0.008476257,-0.044281006,0.013252258,-0.007118225,0.034423828,-0.02923584,0.020751953,-0.023971558,-0.01525116,-0.03100586,-0.0076408386,-0.034088135,0.005317688,0.03277588,0.007534027,0.013130188,0.011955261,-0.040039062,0.021514893,0.050689697,0.0055351257,-0.031555176,-0.0047683716,0.007183075,0.0030784607,-0.0037574768,0.015098572,-0.016723633,-0.02609253,0.0054130554,-0.00299263,0.010169983,0.0058555603,0.032836914,0.010948181,-0.0007929802,0.0052604675,0.03152466,-0.0021362305,-0.008049011,0.010368347,-0.00024139881,0.03050232,0.032348633,-0.012275696,0.00920105,0.033325195,-0.039611816,0.044036865,-0.0209198,0.023406982,-0.019241333,0.010635376,-0.046081543,-0.014801025,-0.004722595,0.014778137],"createdAt":"2026-04-18T18:37:47.030Z","updatedAt":"2026-04-22T11:31:08.097Z","lastSeenAt":"2026-04-22T11:31:08.097Z","tsv":"'/api/v1/generate/resource/133':115 '0.02':10,29,90,153,206 '000':147 '20':146 '300':171 'Base network API' 'USDC API' 'accept':138 'access':6,25,46,120 'actual':228 'address':168 'advertis':184 'ai':77 'analysi':188 'analyt':76 'api':5,24,45,73,102,119 'application/json':180 'base':8,27,98,148 'base-network' 'beyond':128 'broad':66 'broader':182 'call':72,155 'catalog':67 'challeng':133 'charg':142 'classif':191 'commit':109 'confirm':134 'connect':218 'convers':199 'data':75 'detail':225 'doc':212 'document':127,210 'embed':192 'endpoint':40,57,86,185,235 'exact':123,162 'exchang':195 'feed':194 'financ':80 'function':124 'gate':3,22 'generat':201 'geocod':197 'host':64 'howev':209 'i.e':152 'infrastructur':83 'json-response' 'key':16,35,103 'label':117 'learn':79 'limit':19,38,106 'live':137 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':42,61 'machin':78 'made':158 'mani':56 'maximum':144 'micropayment API' 'mime':177 'network':99 'no-api-key' 'no-rate-limit' 'offer':58 'one':54 'page':211 'pay':9,28,70 'pay-per-cal':69 'pay-per-call API' 'pay-per-request' 'payment':50,156 'per':11,30,71,91,154 'platform':62,183 'point':208 'post':139 'premium':4,23,44,118 'premium API access' 'price':88,193,207,213 'prompt':220 'protocol':51 'provid':43 'rate':18,37,105,196 'readm':214 'remain':236 'request':12,31,92,140 'request/response':229 'requir':110 'resourc':113 'respons':176 'return':215 'schema':230 'scheme':163 'second':172 'sentiment':187 'settl':93 'span':74 'specif':112 'specifi':166 'summar':190 'technic':224 'text':189 'timeout':173 'titl':130 'type':178 'unit':149 'unknown':237 'usdc':14,33,95,151 'usdc-settlement' 'util':84 'valid':198 'via':47,159 'wallet':167,219 'web3':81 'window':174 'x402':2,21,49,132,161 'x402 API' 'x402-gated':1,20 'x402-payment'","prices":[{"id":"55402c92-c16e-4195-8bd3-2bcfa3ec1081","listingId":"f9b8bf91-d67f-485e-a6ee-895b415099ad","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/generate/resource/133","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:37:47.030Z"}],"sources":[{"listingId":"f9b8bf91-d67f-485e-a6ee-895b415099ad","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/generate/resource/133","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:37:47.030Z","lastSeenAt":"2026-04-22T11:31:08.097Z"}],"details":{"listingId":"f9b8bf91-d67f-485e-a6ee-895b415099ad","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/133 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/133"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/133"}],"useCases":["Programmatic access to a pay-per-call API without managing API keys or subscriptions","Agent-driven workflows that need on-demand API calls settled in USDC on Base","Testing x402 payment protocol integrations with a low-cost endpoint"],"bestFor":["Developers or agents wanting zero-friction, keyless API access","Micropayment-based API consumption without rate limits","x402 protocol experimentation at low cost ($0.02/call)"],"notFor":["Users needing well-documented request/response schemas before integration","High-volume use cases where per-call pricing may add up versus flat-rate plans"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:43.945Z"},"updatedAt":"2026-04-22T11:31:08.097Z"}}