{"id":"2094cafe-36c1-49b4-9793-c5f1307d4d9f","shortId":"zxVztj","kind":"x402","title":"x402-gated premium API access on Base, pay-per-request with USDC.","tagline":"x402-gated premium API access on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com is one of many x402-protocol-gated API endpoints offered by the provider. The specific resource `/api/v1/policies/6` is labeled \"Premium API Access\" and accepts POST requests, settling payments in USDC on the Base network. The x402 challenge indicates a maximum amount of 20,000 base units of USDC (6 decimals), which translates to $0.02 per request.\n\nThe broader lowpaymentfee.com platform advertises a suite of endpoints spanning data & analytics (metrics, reports, data export, insights), AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments required. Payments are made via the x402 protocol using USDC on the Base L2 network.\n\nThe specific functionality behind `/api/v1/policies/6` is not documented beyond the label \"Premium API Access.\" There is no OpenAPI schema, no request/response examples, and the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional content. Because of this, the exact input parameters and response format for this particular endpoint remain unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","http-post"],"categories":["api","infrastructure"],"synonyms":["premium API","paid API access","x402 endpoint","USDC API","Base network API","lowpaymentfee","micropayment API"],"warnings":["No OpenAPI or schema documentation available for this endpoint","The exact functionality of /api/v1/policies/6 ('Premium API Access') is not described anywhere","All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no useful content","Request body format and response structure are completely unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/policies/6","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/policies/6","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC per request on Base). However, there is no OpenAPI schema, no request/response examples, and the docs pages are empty beyond a wallet-connect prompt. The specific functionality of /api/v1/policies/6 is undocumented, making this 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":"2026-04-19T08:07:30.200Z","embedding":[-0.013389587,-0.033081055,0.048065186,0.017471313,0.012138367,-0.017105103,-0.04019165,0.029159546,0.07519531,-0.06329346,0.0390625,-0.046325684,-0.041381836,-0.047332764,-0.026153564,0.008811951,-0.013542175,0.015464783,-0.046173096,0.044158936,0.036712646,-0.0057029724,-0.017944336,0.04208374,0.011947632,-0.025466919,0.0059890747,-0.0135650635,-0.0057029724,-0.043426514,0.024642944,-0.027664185,-0.0034217834,0.0025978088,-0.019989014,-0.010787964,-0.011314392,0.058532715,0.026000977,-0.007637024,-0.005847931,-0.069885254,-0.0013198853,-0.00010550022,-0.042938232,0.009681702,0.028366089,-0.042022705,-0.021133423,0.0023765564,-0.031097412,-0.010818481,-0.013580322,-0.004634857,0.026947021,0.014221191,0.01158905,-0.017410278,0.016326904,0.004787445,-0.0016536713,-0.080078125,-0.018234253,0.024169922,0.018692017,0.04815674,-0.002828598,0.04006958,0.021057129,0.061340332,0.043121338,0.054626465,0.02128601,0.013168335,-0.009841919,-0.002204895,0.0088272095,0.048919678,-0.027160645,-0.008781433,-0.0138168335,-0.015731812,-0.03555298,0.0022335052,-0.0151901245,-0.044799805,-0.0137786865,0.006378174,-0.015838623,0.019104004,-0.065979004,-0.0051994324,-0.024108887,0.02470398,-0.0069465637,-0.005355835,-0.015312195,0.018661499,-0.016036987,0.015182495,0.013381958,-0.036956787,0.010887146,0.027450562,0.057617188,0.030929565,0.01914978,0.028213501,0.016448975,-0.025283813,-0.020431519,-0.002462387,-0.0082473755,0.0026187897,0.0121536255,0.010932922,-0.043060303,0.03567505,-0.003435135,0.0234375,-0.05407715,0.051330566,0.030334473,-0.04937744,0.01890564,-0.052093506,-0.026641846,0.0066184998,-0.039367676,-0.0038013458,0.029708862,0.003917694,0.03302002,-0.037322998,-0.030563354,0.024230957,0.008583069,-0.030258179,-0.066101074,-0.019195557,0.030517578,-0.02330017,0.029647827,0.031707764,-0.10876465,-0.0018186569,-0.059814453,0.0018806458,-0.03994751,0.0064849854,0.0018224716,0.029129028,-0.015640259,-0.005153656,-0.023849487,-0.025283813,-0.005672455,0.03277588,-0.002861023,0.05834961,-0.009689331,0.054901123,0.0178833,0.012458801,0.03955078,0.03704834,0.0041923523,-0.058532715,-0.093811035,-0.03778076,-0.016494751,-0.010032654,-0.0385437,0.0038776398,-0.008651733,-0.10687256,-0.037078857,-0.013183594,-0.006511688,-0.026672363,-0.008728027,-0.024780273,-0.016586304,-0.025466919,-0.0635376,-0.033996582,-0.04336548,0.06781006,0.012237549,0.0049095154,0.03616333,-0.017486572,0.045959473,0.017669678,-0.012229919,-0.04824829,0.007183075,-0.021453857,0.027236938,0.008934021,-0.007335663,-0.035247803,0.040405273,0.049468994,-0.0008625984,-0.018737793,-0.006511688,-0.04473877,-0.02999878,-0.047821045,-0.008110046,0.0090789795,-0.002439499,0.034332275,-0.04248047,-0.02949524,-0.010223389,0.0067825317,0.022949219,0.084472656,0.009178162,-0.0033435822,0.017852783,0.0079574585,-0.046051025,0.042633057,0.018692017,0.035614014,-0.0440979,-0.017425537,0.011978149,0.045837402,-0.030776978,-0.011253357,-0.027160645,0.013504028,-0.0029010773,0.017303467,0.034301758,-0.022399902,-0.022125244,-0.029388428,0.00064468384,0.03152466,0.007221222,-0.03036499,-0.041656494,-0.064697266,0.016738892,0.048034668,0.03302002,-0.0018529892,0.0032176971,-0.039031982,0.0031852722,-0.052734375,0.056854248,0.066345215,-0.035003662,-0.016281128,0.026565552,0.007221222,-0.0047454834,-0.03463745,-0.0057640076,-0.038879395,-0.024627686,0.0059776306,-0.023223877,0.021560669,0.013130188,0.026901245,0.045837402,-0.0017747879,-0.05783081,-0.038269043,0.013244629,-0.00869751,-0.03125,0.0024776459,-0.0037956238,-0.011230469,0.014167786,-0.00045681,0.04425049,-0.0009889603,0.002155304,-0.011672974,-0.015388489,-0.031341553,-0.027297974,0.03768921,-0.007709503,-0.07183838,0.018249512,-0.0060691833,0.050354004,-0.056518555,0.041503906,-0.015777588,-0.0023555756,0.062927246,-0.02217102,-0.03591919,0.0074386597,0.03161621,0.04864502,0.009849548,-0.0046653748,-0.008888245,-0.0011758804,0.032440186,-0.013870239,-0.011299133,0.0017929077,0.016281128,0.022781372,0.00001013279,-0.07434082,-0.025787354,-0.023086548,-0.039642334,0.021392822,-0.030853271,0.03604126,-0.011802673,0.007381439,-0.022354126,0.0031547546,-0.024398804,0.022521973,-0.029418945,0.0014123917,-0.012542725,0.004547119,-0.0018348694,0.03173828,-0.02507019,-0.0020542145,0.032989502,0.009925842,-0.012084961,-0.027267456,-0.013290405,-0.037597656,0.010696411,0.027526855,0.015686035,0.017456055,0.04336548,-0.028244019,0.01763916,0.019638062,0.021820068,0.033203125,-0.015945435,0.023651123,-0.060150146,-0.07348633,-0.010177612,-0.039001465,0.032806396,0.0033683777,0.012687683,0.02760315,-0.0020923615,-0.0041160583,-0.02999878,0.027923584,-0.027786255,0.0004105568,0.018585205,-0.011695862,-0.024734497,0.0007638931,0.009635925,0.0054740906,0.048919678,0.014892578,0.0025749207,0.068725586,0.051879883,0.01235199,0.012519836,0.008323669,0.029815674,-0.011993408,-0.017807007,-0.012123108,-0.0012903214,0.03289795,-0.012397766,-0.008201599,-0.06222534,0.037200928,0.026062012,0.067993164,0.019241333,0.018951416,0.024337769,-0.011360168,0.0019159317,-0.028808594,-0.011177063,-0.05038452,-0.033569336,0.010910034,-0.014144897,-0.009628296,-0.039520264,0.027267456,-0.007621765,0.004928589,-0.03164673,0.053619385,0.009086609,-0.008140564,0.0135650635,0.00096035004,0.038208008,0.052581787,-0.037597656,0.034851074,0.017913818,-0.015533447,-0.007007599,0.027313232,-0.00084400177,-0.03302002,-0.050720215,-0.032806396,-0.011207581,-0.0012025833,-0.0635376,-0.015670776,0.0049819946,0.014198303,0.022033691,-0.019256592,-0.022903442,-0.0016765594,-0.013191223,-0.047698975,0.0063476562,-0.040985107,0.0022964478,0.05557251,-0.005153656,0.0045547485,0.005569458,0.009468079,0.008995056,0.005657196,0.0074005127,-0.004890442,-0.046325684,0.027633667,0.0061416626,0.019332886,0.0289917,0.032806396,0.03186035,0.025024414,0.036224365,0.022613525,-0.026855469,-0.05606079,0.020339966,-0.04949951,0.01928711,0.0036354065,-0.010261536,-0.011184692,-0.011390686,-0.010612488,-0.029571533,-0.0022335052,-0.035095215,0.02230835,0.01777649,-0.035125732,-0.03111267,-0.05834961,-0.012275696,0.00831604,0.066833496,0.04711914,-0.0075950623,-0.062927246,-0.01977539,0.028335571,0.009086609,0.0076408386,-0.015060425,-0.018325806,-0.02923584,-0.030227661,-0.038238525,-0.03378296,0.037628174,0.00023078918,-0.041900635,0.011054993,-0.019866943,0.014694214,0.0069236755,-0.0024929047,0.019454956,-0.023422241,0.0045661926,-0.026473999,0.023529053,0.00006121397,-0.023864746,-0.05001831,0.04574585,0.020507812,0.030838013,-0.0256958,0.008522034,-0.003376007,0.014785767,0.013130188,-0.0075569153,-0.011054993,0.0059394836,-0.04940796,-0.092041016,0.03451538,-0.020843506,0.032043457,-0.0031261444,0.022735596,0.027404785,0.0021343231,0.01537323,0.03161621,-0.026855469,-0.010032654,-0.01852417,-0.024093628,-0.030090332,0.0075950623,-0.0016460419,0.004798889,-0.011756897,0.017608643,-0.0016498566,-0.017944336,0.037017822,0.015007019,0.0021095276,0.012329102,0.0063591003,0.010284424,0.042266846,0.0069274902,-0.022277832,0.015731812,0.024902344,-0.0062828064,-0.021728516,0.04071045,0.02217102,-0.037994385,-0.0015287399,-0.0008735657,-0.000477314,-0.020751953,-0.015670776,0.0038471222,0.038848877,0.007171631,-0.024765015,0.01625061,0.02659607,-0.028549194,-0.016235352,0.02482605,0.010177612,-0.039489746,0.021499634,0.02532959,0.0463562,-0.030014038,0.0008883476,0.0115356445,0.040618896,-0.0048713684,0.02204895,-0.0051574707,0.020324707,-0.009513855,-0.0025310516,0.008796692,-0.0065956116,0.015182495,-0.0022830963,0.012466431,0.023986816,0.017333984,-0.03515625,-0.029388428,0.009292603,-0.0046958923,-0.0079574585,0.038970947,0.016693115,0.017562866,-0.009681702,0.0234375,0.017608643,-0.024154663,-0.020935059,-0.006290436,0.040649414,-0.024749756,-0.013290405,0.017929077,0.003484726,0.033325195,-0.048553467,0.008720398,-0.0043754578,0.02041626,-0.025436401,-0.044128418,-0.028884888,0.004272461,0.03314209,0.0069465637,0.0013914108,0.03250122,-0.0053977966,0.0044784546,0.017913818,0.013885498,-0.001206398,-0.02986145,-0.043945312,-0.000066936016,0.0009551048,-0.00894165,-0.043182373,0.013595581,-0.033691406,-0.022888184,0.008216858,-0.013473511,-0.009269714,-0.0062065125,-0.0072364807,0.012893677,0.000641346,0.014862061,-0.01058197,-0.023712158,0.007320404,0.013847351,0.031097412,-0.039276123,0.020889282,-0.008453369,0.0030956268,-0.0032691956,0.016708374,0.025436401,0.03555298,0.000056385994,0.03125,-0.041656494,0.027954102,-0.029754639,0.0029754639,-0.0007286072,-0.031341553,-0.0043640137,-0.01927185,-0.011016846,0.029541016,-0.0087509155,-0.0056762695,-0.026229858,-0.019821167,-0.020812988,-0.042236328,0.00843811,0.022567749,0.036346436,-0.018173218,0.003982544,0.008605957,-0.011993408,-0.013938904,0.004611969,-0.0039634705,0.02897644,0.022872925,-0.0021476746,-0.028442383,-0.027664185,0.0012578964,-0.005908966,-0.042114258,-0.04196167,-0.010009766,0.0031833649,-0.0043525696,-0.017608643,-0.035980225,-0.0098724365,-0.004699707,-0.03778076,0.008644104,0.01272583,0.012046814,0.019927979,-0.024429321,0.0138549805,0.023895264,-0.023254395,0.02268982,-0.0010662079,0.003156662,-0.04928589,0.009269714,0.03213501,0.017074585,-0.006137848,-0.021591187,-0.0018577576,-0.023666382,-0.05444336,-0.006778717,-0.003288269,-0.00074338913,0.0087890625,-0.011421204,-0.046875,-0.01852417,-0.01939392,0.0024795532,0.005558014,0.013381958,0.01826477,0.0019254684,0.010658264,-0.0074005127,-0.013381958,-0.051116943,0.024475098,0.010520935,-0.0038547516,0.004760742,0.04336548,0.011993408,-0.015220642,-0.0062561035,0.0028514862,0.007713318,-0.013298035,-0.0016994476,-0.004348755,-0.004055023,-0.017990112,-0.020263672,-0.04220581,0.005634308,0.06756592,-0.0053634644,0.016983032,-0.015296936,-0.009460449,0.01953125,0.038024902,-0.035369873,-0.027786255,-0.02281189,0.016403198,-0.010124207,0.018493652,0.006187439,0.011489868,-0.02104187,-0.054901123,-0.0070648193,0.019470215,-0.016021729,-0.058685303,-0.017333984,-0.0619812,-0.0052757263,-0.00440979,-0.036895752,0.0010547638,0.00056791306,-0.008712769,-0.072509766,0.016799927,0.060546875,0.012550354,0.012527466,-0.01675415,0.030593872,0.028076172,-0.034606934,-0.04144287,0.026412964,-0.033111572,-0.01890564,-0.0289917,0.033843994,-0.024795532,-0.023895264,0.010002136,0.0082092285,0.02279663,-0.005428314,0.014640808,-0.025726318,0.0095825195,-0.008644104,0.026809692,-0.009979248,-0.006298065,0.027160645,-0.034576416,0.018707275,0.020507812,0.006549835,-0.014816284,0.026062012,0.03314209,-0.04562378,-0.008674622,0.03564453,0.018325806,0.0541687,-0.037231445,0.048095703,0.024887085,-0.014564514,0.024108887,-0.015945435,-0.031433105,-0.057739258,-0.030181885,0.012924194,0.00031280518,0.024246216,-0.021743774,0.018966675,0.020690918,-0.003042221,0.004219055,-0.022323608,-0.021697998,-0.022064209,0.017150879,-0.0016794205,-0.009208679,-0.0063819885,0.023162842,0.013175964,0.04827881,0.004386902,-0.017974854,0.02482605,0.01159668,-0.0151901245,0.012969971,0.012290955,0.0059509277,0.0059051514,0.02407837,0.0115737915,-0.04321289,-0.014472961,-0.006717682,-0.0045166016,0.02128601,0.007320404,0.005252838,-0.0034542084,-0.0054244995,0.0067443848,-0.042663574,0.017913818,-0.02279663,-0.03286743,0.0018644333,-0.017425537,-0.00072813034,-0.00021994114,0.002653122,0.0056610107,-0.0064430237,0.05505371,-0.0011997223,0.0013656616,0.011512756,0.05328369,0.006877899,-0.021652222,-0.006587982,-0.003578186,0.0036449432,0.0010089874,-0.023025513,0.023498535,0.044555664,-0.022232056,0.020904541,0.0011291504,0.03552246,0.0003607273,0.010101318,0.007080078,0.02532959,-0.025466919,0.037139893,-0.041778564,0.0022850037,0.010063171,0.0069732666,0.008361816,-0.024627686,-0.022491455,0.014129639,0.002231598,-0.011138916,0.047332764,-0.007865906,0.024749756,-0.018081665,-0.026947021,0.0073280334,-0.026046753,-0.013763428,0.032928467,0.0029621124,-0.005420685,0.020812988,-0.005634308,0.035308838,-0.035003662,0.0057640076,0.016464233,-0.014259338,-0.017974854,-0.013687134,-0.01802063,-0.005996704,-0.001748085,-0.00015580654,-0.0056114197,0.03225708,0.016601562,0.02218628,0.018447876,0.022262573,0.016601562,-0.03945923,-0.020462036,0.00038647652,-0.01890564,0.019180298,-0.026031494,0.024215698,0.045013428,-0.0049972534,0.037475586,0.04248047,0.019577026,0.0023708344,0.004432678,-0.009788513,0.024139404,-0.006580353,0.018539429,0.010261536,0.04663086,-0.021591187,0.020858765,0.0013036728,0.020431519,-0.029678345,0.038391113,0.067871094,0.030883789,0.005710602,0.04208374,-0.007785797,-0.019989014,-0.009925842,-0.00060129166,0.057037354,-0.0030097961,0.04458618,0.022079468,0.014633179,-0.015312195,0.038208008,-0.026168823,-0.044891357,0.052246094,0.03062439,-0.024383545,-0.0071525574,-0.0128479,-0.0024166107,-0.040222168,-0.032714844,0.02078247,0.007499695,0.005241394,0.0026512146,0.0020446777,0.002664566,0.015350342,0.00340271,-0.0052948,-0.018081665,0.027786255,0.030334473,0.009086609,0.029205322,0.020568848,0.03729248,-0.009254456,-0.014656067,0.012306213,0.018707275,0.0013427734,-0.0015144348,0.012107849,0.02407837,0.058776855,0.03845215,-0.028060913,0.0074768066,0.026824951,0.0099487305,0.0016107559,0.017990112,0.031173706,0.009681702,0.031799316,0.04534912,0.030883789,-0.030654907,-0.002117157,-0.019958496,0.010635376,-0.0057907104,-0.016723633,0.009628296,-0.011955261,0.017745972,-0.0009422302,-0.00258255,0.033172607,0.029525757,0.013633728,0.0002965927,-0.005897522,0.013267517,-0.0040016174,0.010093689,0.028244019,-0.01651001,0.011161804,0.02558899,0.027130127,-0.022857666,0.032928467,-0.0047035217,-0.03451538,0.0046844482,0.0069885254,-0.044555664,-0.009742737,-0.0029392242,0.0030841827,-0.041137695,0.009613037,0.025100708,-0.004890442,0.030731201,0.014732361,-0.0037269592,-0.01965332,0.023620605,0.015602112,-0.010108948,-0.006122589,-0.015258789,0.027816772,0.026947021,0.003025055,0.0178833,-0.013023376,-0.0028858185,0.013397217,0.007926941,0.008422852,-0.0056495667,-0.00016880035,-0.055267334,0.0051841736,0.044830322,0.025527954,0.030914307,-0.0050239563,-0.0037956238,-0.0036239624,0.025344849,0.010467529,0.0022125244,-0.016235352,0.028396606,-0.011138916,0.040100098,0.052490234,-0.0046081543,0.014915466,-0.018997192,-0.026855469,0.005290985,-0.0029392242,0.009208679,-0.009590149,0.015853882,-0.021072388,0.016143799,-0.016662598,-0.036621094,-0.0029335022,-0.024368286,-0.013038635,-0.028213501,0.005886078,0.008224487,0.014259338,0.027633667,0.004917145,-0.020111084,0.062286377,-0.014251709,0.040771484,-0.014144897,0.008728027,0.051513672,0.04815674,0.03302002,0.012687683,0.020889282,-0.025680542,0.020019531,0.03274536,0.02659607,0.009864807,0.005748749,-0.0067596436,0.033599854,0.014221191,0.026535034,0.006816864,-0.0057640076,0.020446777,-0.013168335,-0.008255005,-0.0022716522,-0.018936157,0.019378662,0.035064697,-0.027557373,-0.005001068,-0.025894165,-0.020935059,0.039916992,0.008239746,-0.0018644333,-0.0037651062,-0.02861023,0.022415161,-0.022735596,-0.0040626526,0.0031642914,0.03225708,-0.034973145,-0.011627197,0.012435913,0.022720337,-0.017684937,0.026290894,0.033569336,0.0140686035,0.0043945312,0.041931152,-0.00023078918,0.050720215,0.0065574646,0.027404785,0.040740967,-0.0042152405,-0.022644043,0.0152282715,0.02381897,-0.0129470825,-0.0049591064,0.047088623,0.0029029846,0.016830444,0.0053482056,-0.009277344,0.016113281,0.02999878,-0.008140564,-0.0015792847,-0.007347107,-0.018936157,0.0050849915,0.009681702,0.004890442,0.0051651,0.0028953552,-0.011688232,0.01247406,0.025039673,0.019927979,-0.030334473,0.007774353,0.021347046,0.01727295,-0.020477295,-0.021453857,-0.016235352,-0.033416748,0.022781372,0.020828247,-0.0012226105,0.021652222,-0.025924683,-0.013328552,0.03778076,0.00894928,0.006969452,0.006626129,-0.012275696,0.01828003,-0.025161743,0.0006804466,-0.019454956,0.0051460266,0.012641907,0.013710022,-0.01953125,-0.025939941,0.033050537,-0.011627197,0.011940002,0.005050659,-0.014823914,0.023712158,-0.019866943,-0.007987976,-0.005722046,0.005622864,-0.014091492,-0.033111572,-0.025924683,0.022521973,0.04537964,-0.0077781677,-0.006778717,0.0066566467,0.010932922,0.02923584,0.03765869,0.009223938,0.028839111,0.029342651,-0.015090942,-0.030181885,0.018722534,-0.024520874,-0.036376953,0.021362305,-0.014862061,-0.01335907,0.017715454,0.00011318922,-0.0036087036,-0.026657104,-0.017333984,-0.012107849,-0.018966675,0.028244019,-0.013977051,0.011070251,-0.018218994,-0.02432251,0.005558014,-0.020477295,-0.033813477,-0.030334473,-0.009857178,-0.020904541,-0.056365967,0.033691406,-0.023910522,0.023483276,-0.025421143,0.00047898293,-0.009269714,0.034057617,-0.004627228,0.008407593,0.018447876,0.02909851,0.0035324097,0.02029419,0.014785767,-0.010543823,-0.039154053,-0.011734009,-0.0039634705,-0.0051078796,0.021209717,-0.008110046,0.023422241,0.0017223358,0.001367569,0.002445221,-0.0053367615,-0.006439209,-0.0026493073,-0.033172607,-0.011772156,0.0056762695,0.02897644,-0.004169464,-0.0040664673,0.049682617,-0.0061531067,-0.021865845,0.03253174,0.050811768,0.015701294,0.045959473,-0.02229309,0.00093889236,-0.014732361,0.0008497238,-0.0096588135,0.0054893494,0.019989014,0.010681152,-0.012641907,0.00064468384,0.0126571655,-0.012245178,0.005844116,0.024658203,-0.0031585693,-0.015037537,0.034057617,0.0077781677,-0.002325058,-0.015312195,-0.020111084,0.025268555,0.044708252,0.023406982,0.004219055,-0.016113281,0.0039787292,-0.013618469,0.010124207,0.0151901245,-0.031173706,-0.017410278,-0.01902771,-0.024032593,0.031677246,-0.0072021484,0.013381958,-0.0000014901161,0.019927979,-0.017288208,-0.007320404,-0.01108551,0.018051147,0.0030117035,-0.023635864,-0.0054359436,-0.003458023,0.030960083,-0.021316528,-0.00020766258,-0.032684326,-0.013404846,-0.017211914,-0.025131226,0.018981934,0.013923645,-0.0030021667,-0.004589081,0.0011529922,-0.009765625,-0.00012218952,0.019744873,-0.016021729,-0.006668091,0.00843811,0.008934021,-0.028244019,0.015098572,-0.0044784546,-0.009742737,0.010772705,-0.007408142,0.016326904,-0.015670776,0.042419434,0.019226074,-0.0014419556,0.0368042,0.0024089813,0.028686523,-0.026367188,0.0107803345,0.0008416176,-0.008666992,0.032470703,-0.016921997,-0.025253296,0.009605408,-0.017608643,-0.044708252,0.010757446,0.037750244,0.03253174,-0.031143188,0.042236328,-0.006252289,-0.021713257,0.0140686035,0.029678345,-0.0056991577,0.0035324097,0.028656006,0.008621216,-0.012458801,-0.0017566681,-0.0055351257,-0.024917603,-0.016067505,0.011856079,-0.013084412,-0.009117126,0.009292603,0.006389618,0.033050537,-0.0013246536,0.0259552,0.026855469,-0.0018186569,0.025848389,0.025909424,0.060028076,-0.011016846,-0.021835327,0.0009069443,0.008041382,-0.01398468,-0.01071167,-0.015586853,-0.0009880066,-0.038513184,0.01574707,0.0028648376,0.023895264,-0.019348145,0.011764526,-0.018310547,-0.0047073364,-0.033172607,-0.012176514,-0.0335083,0.015258789,0.04321289,0.0052375793,0.013893127,0.010009766,-0.018630981,0.030456543,0.048553467,-0.0003721714,-0.03805542,-0.003900528,0.01612854,0.010192871,-0.023727417,0.013214111,-0.024642944,-0.025344849,0.005531311,-0.010765076,0.012458801,-0.006374359,0.023666382,0.012084961,-0.0065956116,-0.0025138855,0.017425537,0.0007967949,0.0005865097,0.009460449,-0.0062179565,0.033996582,0.035583496,-0.011962891,0.016159058,0.027954102,-0.02722168,0.03982544,-0.012619019,0.009780884,-0.021392822,0.011260986,-0.036743164,-0.0009274483,0.010612488,0.0031490326],"createdAt":"2026-04-18T18:52:10.482Z","updatedAt":"2026-04-22T07:31:27.961Z","lastSeenAt":"2026-04-22T07:31:27.961Z","tsv":"'/api/v1/policies/6':50,171 '0.02':87,138 '000':77 '20':76 '6':82 'Base network API' 'USDC API' 'accept':57 'access':6,20,55,180 'addit':205 'advertis':94 'ai':107 'amount':74 'analysi':111 'analyt':101 'api':5,19,41,54,143,179,194 'base':8,22,66,78,164 'base-network' 'behind':170 'beyond':175 'broader':91 'challeng':70 'classif':114 'commit':151 'connect':200 'content':206 'convers':131 'data':100,104 'decim':83 'doc':191 'document':174 'embed':115 'endpoint':30,42,98,134,220 'estim':125 'exact':211 'exampl':188 'exchang':120 'export':105 'feed':119 'financ':116 'format':216 'function':169 'gas':124 'gate':3,17,40 'generat':132 'geocod':129 'http-post' 'indic':71 'infrastructur':127 'input':212 'insight':106 'key':144 'l2':165 'label':52,177 'learn':109 'limit':147 'list':136 'lowpaymentfee' 'lowpaymentfee.com':32,92 'machin':108 'made':155 'mani':36 'maximum':73 'metric':102 'micropayment API' 'minimum':150 'network':67,166 'no-api-key' 'offer':43 'one':34 'openapi':184 'page':195 'paid API access' 'paramet':213 'particular':219 'pay':10,24 'pay-per-request':9,23 'payment':61,153 'per':11,25,88,139 'platform':93 'post':58 'premium':4,18,53,178 'premium API' 'price':118,192 'prompt':202 'protocol':39,159 'provid':46 'quot':123 'rate':121,146 'remain':221 'render':197 'report':103 'request':12,26,59,89,140 'request/response':187 'requir':152 'resourc':49 'respons':215 'schema':185 'sentiment':110 'settl':60 'span':99 'specif':48,168 'suit':96 'summar':113 'text':112 'token':122 'translat':85 'unit':79 'unknown':222 'usdc':14,28,63,81,161 'usdc-settlement' 'use':160 'util':128 'valid':130 'via':156 'wallet':201 'web3':117 'x402':2,16,38,69,158 'x402 endpoint' 'x402-gated':1,15 'x402-payment' 'x402-protocol-gated':37","prices":[{"id":"56db59ed-bf59-41f0-9551-8ef3447166c7","listingId":"2094cafe-36c1-49b4-9793-c5f1307d4d9f","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/policies/6","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:52:10.482Z"}],"sources":[{"listingId":"2094cafe-36c1-49b4-9793-c5f1307d4d9f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/policies/6","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:52:10.482Z","lastSeenAt":"2026-04-22T07:31:27.961Z"}],"details":{"listingId":"2094cafe-36c1-49b4-9793-c5f1307d4d9f","quickStartSnippet":"# The endpoint requires an X-PAYMENT header with a valid x402 payment proof.\n# Using curl as an example (you need an x402-compatible client to generate the header):\ncurl -X POST https://lowpaymentfee.com/api/v1/policies/6 \\\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 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/policies/6"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/policies/6"},{"claim":"Documentation pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing a gated premium API resource via x402 micropayment","Programmatic pay-per-call API consumption without API key management","Agent-driven API access settled in USDC on Base"],"bestFor":["Developers or agents wanting keyless, pay-per-request API access","x402-compatible clients on the Base network","Low-friction micropayment API consumption"],"notFor":["Users who need detailed documentation or schema before integrating","Anyone requiring free or subscription-based access models","Use cases needing high-throughput with predictable flat-rate pricing"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:02.007Z"},"updatedAt":"2026-04-22T07:31:27.961Z"}}