{"id":"7bb4040e-c5bc-46f6-ba2e-e71ecb61d020","shortId":"7P3pTX","kind":"x402","title":"Pay-per-request API platform on Base via x402 — $0.02/call for data, AI, finance, and utility endpoints.","tagline":"Pay-per-request API platform on Base via x402 — $0.02/call for data, AI, finance, and utility endpoints.","description":"lowpaymentfee.com is an x402-enabled API platform that offers a broad catalog of pay-per-request endpoints across four categories: 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 priced at $0.02 per request, settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/orders/16` is listed as \"Premium API Access\" and its x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the x402 exact scheme — no API keys, no rate limits, and no upfront commitments are required. The endpoint accepts POST requests and returns application/json.\n\nDocumentation beyond the landing page is extremely sparse; the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available. The actual functionality behind the `/api/v1/orders/16` path is unclear — it does not obviously map to any of the advertised API categories. Agents should treat this endpoint with caution until more documentation surfaces.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-settlement","base-network","data-analytics","ai-inference","sentiment-analysis","text-summarization","embeddings","finance-data","geocoding","json-api"],"categories":["api-platform","llm","finance","geo"],"synonyms":["low payment fee","x402 api","pay per call api","micropayment api","usdc api","base network api","402 payment api","crypto api gateway"],"warnings":["No OpenAPI spec or request/response schema available","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no technical content","The endpoint path /api/v1/orders/16 does not correspond to any of the advertised API categories on the landing page","Actual functionality behind this specific endpoint is unknown — 'Premium API Access' is a generic label","No usage examples or error documentation available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/16","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/orders/16","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and the specific endpoint path (/api/v1/orders/16) doesn't clearly map to any advertised service. 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":"2026-04-18T22:24:08.757Z","embedding":[-0.020004272,-0.028244019,0.027740479,0.0036811829,0.016845703,-0.032592773,-0.038757324,0.033843994,0.05215454,-0.06756592,0.02545166,-0.06060791,-0.0256958,-0.04748535,0.00010919571,0.0209198,0.0028095245,0.0020561218,-0.053619385,0.05026245,0.019897461,-0.011878967,-0.026107788,0.0054016113,-0.026367188,-0.02267456,0.007972717,-0.008552551,-0.004886627,-0.036315918,0.0390625,-0.026626587,-0.000998497,0.016220093,-0.009178162,-0.0019626617,-0.0023479462,0.059173584,0.0287323,0.00004261732,0.0030994415,-0.056762695,0.0061149597,-0.008987427,-0.04296875,0.003232956,0.016693115,-0.031219482,-0.012886047,-0.0055503845,-0.041656494,0.009246826,-0.013870239,0.01159668,0.0065994263,0.018539429,-0.00032114983,-0.00016379356,0.009094238,0.013031006,-0.0057029724,-0.06854248,-0.027023315,-0.0036945343,-0.0005803108,0.06274414,-0.010368347,0.037109375,0.010864258,0.06402588,0.016113281,0.050628662,0.037902832,-0.0006222725,0.021850586,-0.012794495,-0.006954193,0.054351807,-0.0057144165,-0.032409668,-0.043548584,-0.027038574,-0.04437256,-0.021011353,-0.0070762634,-0.06768799,-0.030151367,0.010322571,-0.046020508,0.021835327,-0.06628418,-0.002313614,-0.0042533875,0.0006260872,0.009719849,-0.015113831,-0.008743286,0.023040771,-0.011199951,0.011444092,-0.009391785,-0.05154419,0.00013315678,0.008964539,0.036224365,0.054351807,0.020858765,0.025131226,0.006664276,-0.02368164,-0.03793335,0.011772156,-0.02027893,-0.013931274,0.010276794,0.008506775,-0.022628784,0.018493652,-0.034698486,0.016143799,-0.04638672,0.0440979,0.021331787,0.005706787,-0.0068626404,-0.0513916,-0.016571045,-0.000031888485,-0.017456055,-0.013214111,0.023803711,0.014984131,0.031829834,-0.026763916,-0.03479004,-0.006465912,-0.00283432,0.0034770966,-0.04776001,-0.026657104,0.028518677,-0.035247803,0.02848816,0.03567505,-0.10748291,-0.013999939,-0.04324341,-0.0041999817,-0.03125,-0.0131073,-0.0046691895,0.008529663,-0.017166138,-0.036193848,-0.012916565,-0.031036377,0.0057144165,0.016601562,-0.012039185,0.034942627,-0.020202637,0.017791748,0.013656616,-0.0029182434,0.018096924,0.026123047,-0.0053596497,-0.080078125,-0.07788086,-0.031982422,-0.013435364,-0.016952515,-0.018814087,-0.012420654,0.007926941,-0.059753418,-0.0073280334,-0.008995056,0.0038890839,-0.040649414,0.0060539246,-0.026351929,0.0058021545,-0.014190674,-0.048431396,-0.011047363,-0.0413208,0.06854248,0.009048462,0.032348633,0.026031494,0.0015478134,0.052978516,0.028320312,-0.002779007,-0.024871826,0.017654419,-0.01676941,0.032440186,0.00017023087,0.017669678,-0.034210205,0.03778076,0.06939697,-0.0031833649,-0.04046631,-0.011962891,-0.053649902,-0.045532227,-0.029968262,0.023223877,-0.0007367134,-0.0049095154,0.022964478,-0.036468506,-0.04763794,-0.010444641,0.023345947,0.0020275116,0.060028076,0.017562866,-0.0024280548,0.006011963,0.016448975,-0.04269409,0.045440674,0.048309326,-0.0037879944,-0.03463745,-0.035614014,0.027420044,0.039398193,-0.02079773,0.0127334595,-0.026885986,0.031951904,-0.0048675537,0.025177002,0.011238098,-0.0022697449,-0.002046585,-0.0289917,-0.00868988,0.009269714,0.0074691772,-0.025878906,-0.03378296,-0.072143555,0.04623413,0.039245605,0.036346436,-0.005329132,-0.0066108704,-0.03717041,-0.017562866,-0.07269287,0.047332764,0.07525635,-0.004020691,-0.003604889,0.012916565,0.020812988,-0.025497437,0.015182495,-0.0032901764,-0.031402588,-0.010787964,0.008728027,-0.042541504,0.0068511963,0.018234253,0.027740479,0.048461914,-0.013763428,-0.061706543,-0.016235352,-0.004310608,-0.00058555603,-0.013496399,-0.0011787415,0.005466461,0.00881958,0.043518066,-0.0066490173,0.016189575,0.006286621,0.022369385,-0.010437012,-0.00617218,-0.009719849,-0.023223877,0.0042419434,0.01210022,-0.076293945,0.012825012,-0.011764526,0.06878662,-0.043884277,0.033172607,-0.003232956,0.02217102,0.03515625,0.0032596588,-0.028198242,0.014312744,0.02229309,0.023986816,0.04647827,0.008911133,-0.023742676,-0.00047278404,0.09661865,-0.01473999,-0.0051956177,0.0017490387,0.0054779053,0.046722412,-0.0052490234,-0.040039062,-0.042663574,-0.009086609,-0.026901245,0.02619934,-0.009307861,0.021499634,-0.0149002075,0.009429932,-0.015274048,-0.006008148,-0.02432251,-0.0012273788,-0.013999939,0.013145447,-0.012519836,-0.030685425,0.006198883,0.02128601,-0.0051994324,0.026275635,0.026412964,0.023254395,-0.020553589,-0.028915405,-0.03161621,-0.0234375,-0.0037593842,0.011978149,0.014579773,0.012939453,0.04815674,-0.051239014,-0.0019931793,0.02279663,0.0057525635,0.03201294,-0.006801605,-0.00022637844,-0.06744385,-0.058746338,-0.027420044,-0.03869629,0.037200928,0.02407837,-0.010025024,0.058807373,-0.0052871704,-0.011817932,-0.03692627,0.0063285828,-0.043029785,0.015655518,0.04269409,-0.024383545,-0.040893555,-0.0018177032,-0.014228821,0.0065231323,0.03616333,0.014045715,0.02368164,0.06781006,0.02961731,-0.0015964508,0.035461426,0.02229309,0.018737793,0.0049095154,-0.019943237,-0.024353027,-0.019317627,0.023391724,-0.021560669,-0.0078048706,-0.04827881,0.053527832,0.0289917,0.09362793,-0.0039596558,0.005554199,0.045013428,-0.012939453,0.007167816,-0.017791748,-0.019866943,-0.037231445,-0.048675537,0.031463623,-0.026428223,-0.0070762634,-0.021850586,0.034454346,-0.009017944,0.01876831,-0.031585693,0.03604126,-0.010063171,0.013267517,0.011001587,-0.014389038,0.055725098,0.04953003,-0.047302246,0.0051841736,0.024215698,-0.044006348,-0.0026855469,0.040283203,-0.023422241,-0.01751709,-0.043762207,-0.021560669,-0.011306763,-0.0018291473,-0.063964844,-0.0038032532,-0.00038027763,0.017929077,0.02268982,-0.0099105835,-0.01928711,0.0072898865,-0.03479004,-0.063964844,0.0032901764,-0.03390503,0.011711121,0.051330566,-0.016952515,0.0038852692,-0.005996704,-0.015609741,-0.004627228,0.012817383,0.018035889,-0.0035743713,-0.044647217,0.03161621,-0.0077056885,0.016464233,0.042175293,0.031585693,0.04876709,0.0256958,0.037902832,0.010154724,-0.02128601,-0.057739258,0.005596161,-0.04510498,0.021957397,0.008255005,-0.025238037,-0.004096985,-0.018341064,-0.032470703,-0.024047852,0.0138168335,-0.023239136,0.00076818466,0.030761719,-0.031082153,-0.02470398,-0.046936035,-0.0132751465,0.00040102005,0.08178711,0.018478394,-0.0074653625,-0.059936523,-0.014404297,0.0211792,0.005882263,0.025421143,-0.0154800415,0.0011119843,-0.01776123,-0.032684326,-0.026824951,-0.022369385,0.032165527,-0.00035071373,-0.013580322,0.024993896,-0.003604889,0.011871338,-0.0019397736,-0.002998352,0.032989502,-0.021759033,0.0118637085,-0.024810791,0.03289795,0.0061302185,-0.0022716522,-0.044006348,0.044647217,0.0064430237,0.042633057,-0.028839111,-0.0077934265,-0.01600647,0.021942139,0.024337769,-0.010070801,0.00096416473,-0.006690979,-0.04171753,-0.05606079,0.04309082,-0.018234253,0.023391724,0.014083862,0.001247406,0.03805542,-0.01701355,0.0178833,0.027236938,-0.021835327,-0.012062073,-0.011383057,-0.04562378,-0.01574707,-0.015930176,-0.015701294,0.028320312,-0.008476257,0.020492554,-0.0061416626,-0.025115967,0.040802002,0.014671326,0.010498047,0.010383606,0.010040283,0.020111084,0.057128906,0.024871826,-0.055480957,0.03414917,0.004611969,0.02470398,-0.008232117,0.048583984,0.03265381,-0.014419556,0.0008544922,-0.00308609,-0.015945435,-0.015449524,0.0034179688,-0.0025787354,0.013771057,-0.0030059814,-0.02784729,0.01638794,0.005996704,-0.009132385,-0.03479004,0.012290955,0.006389618,-0.04815674,0.015792847,0.030090332,0.05960083,-0.022232056,0.011428833,0.01876831,0.035339355,0.03314209,0.020309448,-0.0073165894,0.021331787,-0.0032901764,0.0027561188,-0.0047912598,-0.0036907196,0.023910522,-0.0059432983,0.026565552,0.022964478,0.0025348663,-0.030181885,-0.028198242,0.0035114288,-0.025283813,-0.019088745,0.032928467,0.029754639,0.033599854,-0.02243042,0.019714355,-0.0020961761,-0.026855469,-0.027542114,-0.02217102,0.040008545,-0.015586853,-0.010536194,0.0121154785,0.014083862,0.01763916,-0.0446167,-0.007194519,0.020111084,0.011436462,-0.005355835,-0.034973145,-0.03668213,0.0064697266,0.043792725,0.000090777874,0.0067825317,0.025100708,0.0012893677,0.007106781,0.003627777,-0.0029697418,-0.015357971,-0.009277344,-0.0423584,-0.012649536,0.0017347336,0.011291504,-0.03491211,0.015235901,-0.009017944,-0.020385742,0.0031147003,-0.028457642,-0.004600525,-0.014564514,0.0037651062,0.042938232,-0.010734558,0.021636963,-0.015213013,-0.029449463,-0.01838684,0.010658264,0.018051147,-0.051086426,0.015235901,-0.0066604614,-0.0063095093,0.012992859,0.026184082,0.00440979,0.020233154,0.020889282,0.037841797,-0.0317688,0.04714966,-0.021026611,0.023498535,-0.0126571655,-0.046875,-0.012039185,-0.021759033,-0.012382507,0.02897644,-0.023666382,-0.015991211,-0.0066604614,-0.034606934,-0.01701355,-0.058532715,0.02078247,0.03475952,0.036590576,-0.0071029663,-0.0011234283,0.0096588135,0.013130188,-0.01763916,0.0036315918,-0.00447464,0.024765015,0.031188965,-0.011398315,-0.026611328,-0.024765015,-0.0056266785,0.0070152283,-0.05267334,-0.064453125,-0.0062179565,0.0007596016,-0.0017089844,0.0016479492,-0.032714844,-0.036590576,-0.0048103333,-0.036865234,0.022842407,0.0060806274,0.016357422,0.005580902,-0.020370483,-0.0018491745,-0.00036144257,-0.01878357,0.022445679,-0.00008100271,-0.020950317,-0.033203125,0.004436493,0.033996582,0.022140503,0.0052604675,-0.019195557,-0.0010023117,-0.015098572,-0.038879395,-0.0018930435,-0.0118255615,-0.01360321,-0.0036182404,0.012802124,-0.049957275,-0.0034599304,-0.040893555,-0.012832642,0.028244019,0.0184021,0.00040578842,-0.014831543,-0.004512787,0.009147644,-0.0061683655,-0.03729248,0.008392334,0.011444092,0.0050582886,0.019546509,0.049591064,-0.008781433,-0.009239197,-0.011383057,0.0069885254,0.02243042,-0.025741577,0.0056037903,-0.028320312,0.017166138,-0.017120361,-0.0075035095,-0.039733887,-0.0054397583,0.05895996,0.0027370453,0.0127334595,-0.01096344,-0.012863159,0.015686035,0.030929565,-0.035888672,-0.0030879974,-0.0070266724,0.02357483,-0.02029419,0.014099121,-0.0025367737,0.02255249,-0.02507019,-0.048065186,-0.0118255615,0.0058403015,-0.025314331,-0.06695557,-0.031280518,-0.08227539,-0.0005850792,-0.0149383545,-0.024932861,-0.0067443848,0.009529114,-0.027923584,-0.07824707,-0.0036945343,0.058746338,-0.0064582825,0.029586792,-0.017669678,0.018478394,0.03643799,-0.028305054,-0.005340576,0.028808594,-0.029373169,-0.026321411,-0.012756348,0.031219482,-0.010864258,-0.003856659,0.008079529,0.0025978088,0.012008667,-0.011222839,0.012207031,-0.014579773,0.024795532,-0.02520752,0.025314331,-0.005176544,-0.02961731,0.051361084,-0.06286621,0.025131226,0.002029419,-0.012741089,0.011772156,0.03829956,0.03189087,-0.0423584,-0.017227173,0.020950317,0.016983032,0.019592285,-0.012542725,0.048828125,0.0118637085,-0.011985779,0.0035171509,-0.0028743744,-0.023330688,-0.038513184,-0.050567627,0.030075073,-0.006477356,0.0057144165,-0.020385742,-0.0028820038,0.01701355,-0.001326561,0.005393982,-0.014259338,-0.037231445,-0.021438599,0.0047569275,-0.003376007,0.0033931732,0.00248909,0.02909851,0.02003479,0.040649414,-0.001241684,0.00030374527,0.020477295,0.03173828,-0.022766113,0.0001449585,0.013420105,0.0041542053,0.016494751,0.020263672,0.019302368,-0.05810547,-0.012954712,-0.031173706,0.00024676323,-0.0051116943,-0.015686035,-0.0064201355,-0.020019531,-0.00013291836,-0.0041999817,-0.04650879,0.005088806,-0.028518677,-0.020736694,-0.018249512,0.0002799034,0.021209717,0.018951416,-0.0036506653,0.0054016113,-0.0028362274,0.047424316,-0.0039482117,-0.014915466,0.028274536,0.044647217,0.025726318,-0.038482666,-0.011489868,-0.00044178963,-0.013343811,0.004714966,-0.020339966,0.012130737,0.03829956,-0.006580353,0.003358841,-0.010627747,0.039398193,-0.0072288513,0.010223389,-0.016906738,0.01083374,0.00019264221,0.046936035,-0.04727173,0.0021800995,0.02255249,-0.012939453,-0.015914917,-0.01625061,-0.023254395,0.0340271,-0.006801605,0.0018377304,0.045776367,0.0038585663,0.026977539,-0.038269043,-0.033050537,-0.011550903,-0.020629883,-0.019119263,0.018188477,-0.004627228,0.0028457642,0.013343811,-0.019927979,0.022994995,-0.033050537,0.012390137,0.004058838,0.02545166,-0.008560181,-0.0013523102,-0.015991211,-0.009513855,-0.014793396,-0.0049819946,-0.00076055527,0.033081055,0.02633667,0.028274536,0.03479004,0.0073509216,0.014755249,-0.038085938,-0.0132751465,0.0013523102,-0.016906738,0.005973816,-0.024887085,0.037506104,0.031799316,0.017364502,0.022506714,0.023513794,0.04397583,-0.0020370483,0.017349243,-0.005332947,0.009109497,-0.017486572,0.017807007,-0.0020980835,0.049591064,-0.029556274,0.019577026,0.018814087,0.028808594,-0.014968872,0.02684021,0.05557251,0.025924683,0.006450653,0.04244995,-0.0027427673,-0.0044059753,-0.0036010742,-0.01828003,0.040771484,0.009887695,0.034820557,0.03918457,0.0037250519,-0.0079193115,0.030227661,-0.0423584,-0.020248413,0.039764404,0.028762817,-0.031921387,0.0046539307,-0.011329651,0.008674622,-0.035186768,-0.019836426,0.0075645447,0.012054443,0.004585266,-0.0023765564,-0.02178955,-0.019622803,0.0016431808,0.013267517,0.017105103,-0.007972717,0.016281128,0.023864746,0.004722595,0.029129028,0.0056266785,0.024810791,-0.029449463,-0.026641846,0.01360321,-0.000330925,-0.010177612,-0.009803772,0.033111572,0.004058838,0.03375244,0.033355713,-0.0146865845,-0.0004119873,0.01966858,0.004283905,-0.007282257,0.060302734,0.036468506,0.022018433,0.035949707,0.036621094,0.03137207,-0.034423828,-0.0020561218,-0.0104522705,0.014953613,-0.021270752,-0.027572632,0.0078048706,-0.001250267,0.018508911,0.003206253,-0.010177612,0.016448975,0.03353882,0.0061187744,-0.0075187683,-0.006843567,0.012550354,-0.022354126,-0.014404297,0.016586304,-0.004070282,0.036834717,0.016815186,0.036834717,-0.025436401,0.033721924,-0.011398315,-0.013572693,0.00069475174,0.021469116,-0.045532227,0.015823364,-0.0061950684,-0.012878418,-0.03378296,0.005756378,0.025375366,-0.007167816,0.0021820068,0.022064209,-0.0048980713,-0.018692017,0.020050049,0.021331787,-0.017227173,-0.012649536,-0.015899658,0.023345947,0.03768921,0.0027484894,0.009475708,-0.01966858,0.0033512115,-0.004798889,-0.010894775,0.008338928,0.0020008087,-0.00969696,-0.0066719055,0.02684021,0.028884888,0.027709961,0.04232788,-0.022201538,-0.009880066,0.008560181,0.026229858,0.022369385,0.0047073364,0.0006284714,0.009559631,-0.018447876,0.032836914,0.02897644,0.014579773,0.026229858,0.0026741028,0.0028457642,0.014968872,-0.031677246,0.011993408,-0.016326904,-0.0013475418,-0.005180359,0.020004272,-0.022537231,-0.03741455,0.0027599335,-0.019180298,-0.01828003,-0.02079773,0.023101807,0.007797241,0.028137207,0.05130005,0.019515991,-0.025985718,0.06524658,-0.027526855,0.050872803,-0.0055007935,-0.008674622,0.049316406,0.023544312,0.033721924,0.014053345,0.011001587,-0.029968262,0.027709961,0.03427124,0.026763916,0.010116577,-0.010612488,-0.014015198,0.03591919,-0.00038528442,0.03930664,0.006816864,0.013244629,0.010787964,-0.0040626526,-0.008552551,-0.007522583,-0.0073547363,0.0002259016,0.050354004,-0.008224487,-0.0076522827,-0.022659302,-0.021453857,0.015487671,-0.013710022,-0.004245758,0.006965637,-0.023208618,0.010055542,-0.04373169,-0.013412476,0.015640259,0.020599365,-0.05267334,-0.020889282,0.014709473,0.026641846,-0.030426025,0.034942627,0.01979065,-0.009292603,0.016693115,0.041778564,-0.0093688965,0.026687622,-0.018539429,0.028533936,0.03778076,0.0019741058,-0.007572174,0.002035141,0.013618469,-0.015304565,0.02330017,0.031982422,-0.008560181,-0.0063285828,0.00007945299,-0.001329422,0.0024719238,0.00072574615,-0.005054474,0.00554657,-0.004562378,0.002544403,0.02128601,0.0068473816,-0.0043907166,0.0049858093,-0.0042495728,-0.01789856,0.012138367,0.0385437,0.023071289,-0.03036499,0.0018577576,0.006515503,0.005012512,-0.024765015,-0.012023926,-0.000053226948,-0.015594482,0.009391785,0.005886078,0.02017212,0.009613037,-0.03237915,0.00023937225,0.03414917,0.0206604,0.014953613,0.0004644394,-0.019119263,0.01234436,-0.012435913,-0.0064430237,-0.0011253357,-0.013771057,-0.006801605,0.018051147,-0.009498596,-0.027450562,0.016479492,-0.0020046234,-0.0014123917,-0.0038890839,-0.021316528,0.010322571,-0.013839722,-0.0068206787,0.0018177032,0.0132751465,-0.016708374,-0.01725769,-0.020736694,0.048553467,0.05493164,-0.015411377,-0.017074585,0.017059326,0.014823914,0.024276733,0.044891357,0.010383606,0.045166016,0.024749756,-0.01600647,-0.018463135,0.014755249,-0.017303467,-0.02130127,0.009117126,-0.009284973,-0.0012636185,0.0055351257,0.009811401,-0.0017137527,-0.026992798,-0.013137817,-0.012161255,-0.022033691,0.012214661,-0.0008087158,0.013946533,-0.028381348,-0.011299133,0.018692017,-0.037872314,-0.041503906,-0.01687622,0.0029850006,-0.026428223,-0.060943604,-0.008056641,-0.02645874,0.0055122375,-0.010375977,0.0037460327,-0.010795593,0.022201538,-0.013748169,-0.0026016235,0.0063591003,0.02217102,0.012901306,0.012359619,0.022659302,-0.021652222,-0.015090942,-0.03439331,0.0068130493,-0.010292053,0.017166138,0.0040779114,0.03286743,0.028869629,0.006515503,0.0014572144,-0.022659302,0.010765076,-0.007965088,-0.03579712,-0.015792847,0.013076782,0.017715454,0.00037145615,-0.0011310577,0.034240723,-0.02078247,-0.00806427,0.018493652,0.044189453,0.0056915283,0.02848816,-0.011291504,0.0015525818,-0.017608643,-0.013412476,-0.0049591064,0.012420654,-0.0021572113,-0.0059890747,-0.00085639954,-0.0023841858,0.030960083,-0.02166748,-0.010307312,0.03012085,0.0134887695,-0.0059280396,0.046813965,0.0155181885,0.0070228577,-0.021087646,-0.015960693,0.026031494,0.05456543,0.011329651,0.023208618,0.0029296875,0.014884949,-0.015075684,0.010368347,0.015960693,-0.017028809,-0.050445557,-0.00730896,-0.034576416,0.03640747,0.0030994415,0.015731812,-0.010612488,0.0023212433,-0.006465912,-0.04220581,-0.027038574,0.017227173,0.013374329,-0.008712769,-0.0050582886,0.009567261,0.01184082,-0.033721924,-0.0077171326,-0.045684814,-0.029403687,-0.03152466,-0.012992859,0.025039673,0.0121536255,-0.0053100586,-0.011810303,-0.004398346,0.004009247,-0.007904053,0.019714355,-0.011581421,-0.006626129,0.017700195,0.0126571655,-0.028198242,0.029403687,-0.013664246,0.0005745888,0.009765625,-0.014884949,0.028411865,-0.007965088,0.030181885,-0.005065918,-0.023345947,0.035980225,0.011871338,0.024414062,-0.029663086,0.003019333,-0.01007843,0.004814148,0.036254883,-0.017654419,-0.014083862,0.020446777,-0.014755249,-0.022140503,0.007183075,0.023727417,0.013435364,-0.014030457,0.04425049,-0.013114929,-0.0037727356,0.0033187866,0.02230835,-0.021377563,0.009101868,0.04458618,0.0061073303,0.008903503,-0.0013160706,-0.007698059,-0.029800415,-0.0054016113,0.010124207,-0.0044898987,-0.026794434,0.028060913,0.010223389,0.051208496,-0.01574707,0.017227173,0.023742676,-0.015487671,0.031707764,0.009147644,0.035186768,0.0057029724,-0.034423828,-0.0023727417,-0.0066871643,-0.032684326,0.0044784546,-0.0062942505,0.00894165,-0.029266357,0.0067443848,-0.006038666,0.019332886,-0.022125244,0.014053345,-0.028305054,-0.0061187744,-0.034820557,-0.0061073303,-0.037078857,0.01473999,0.047546387,0.0030841827,0.015541077,-0.0035076141,-0.026260376,0.021957397,0.05960083,-0.0013694763,-0.036224365,-0.018310547,0.014831543,-0.007068634,0.012939453,0.01197052,-0.013305664,-0.037353516,0.0028495789,-0.012413025,-0.007965088,-0.009208679,0.022003174,0.012290955,0.00031542778,-0.0011291504,0.030090332,0.0072746277,0.013015747,0.0010967255,0.005340576,0.03201294,0.031173706,-0.021881104,0.022399902,0.010726929,-0.045318604,0.06304932,-0.0037021637,0.028778076,-0.016021729,0.01689148,-0.031463623,-0.03543091,-0.0073623657,-0.0024318695],"createdAt":"2026-04-18T18:36:05.267Z","updatedAt":"2026-04-23T19:00:40.169Z","lastSeenAt":"2026-04-23T19:00:40.169Z","tsv":"'/api':184 '/api/v1/orders/16':112,219 '/call':12,31 '/docs':182 '/pricing':183 '/readme':186 '0.02':11,30,99,139 '000':128 '0x8335':133 '20':127 '2913':134 '402 payment api' '6':143 'accept':167 'access':118 'across':58 'actual':215 'addit':197 'advertis':123,232 'agent':235 'ai':15,34,68 'ai-inference' 'analysi':72 'analyt':62 'api':5,24,45,117,154,233 'application/json':172 'avail':213 'base':8,27,107,129,136 'base network api' 'base-network' 'behind':217 'beyond':174 'broad':50 'catalog':51 'categori':60,234 'caution':241 'challeng':122 'classif':75 'commit':162 'connect':192 'content':199 'convers':92 'crypto api gateway' 'data':14,33,61,65 'data-analytics' 'decim':144 'document':173,208,244 'embed':76 'embeddings' 'enabl':44 'endpoint':19,38,57,95,111,166,239 'equal':138 'estim':86 'exact':151 'exampl':212 'exchang':81 'export':66 'extrem':179 'feed':80 'financ':16,35,77 'finance-data' 'four':59 'function':216 'gas':85 'generat':93 'geocod':90 'geocoding' 'given':140 'infrastructur':88 'insight':67 'json-api' 'key':155 'land':176 'learn':70 'limit':158 'list':114 'low payment fee' 'lowpaymentfee.com':39 'machin':69 'made':147 'map':227 'maxamountrequir':125 'metric':63 'micropayment api' 'network':108 'obvious':226 'offer':48 'openapi':203 'page':177,187 'path':220 'pay':2,21,54 'pay per call api' 'pay-per-request':1,20,53 'payment':145 'per':3,22,55,100 'platform':6,25,46 'post':168 'premium':116 'price':79,97 'prompt':194 'quot':84 'rate':82,157 'render':189 'report':64 'request':4,23,56,101,169 'request/response':206 'requir':164 'return':171 'schema':207 'scheme':152 'sentiment':71 'sentiment-analysis' 'settl':102 'spars':180 'spec':204 'specif':110 'summar':74 'surfac':245 'technic':198 'text':73 'text-summarization' 'token':83 'treat':237 'unclear':222 'unit':130 'upfront':161 'usag':211 'usdc':104,132,141 'usdc api' 'usdc-settlement' 'util':18,37,89 'valid':91 'via':9,28,148 'wallet':193 'web3':78 'x402':10,29,43,121,150 'x402 api' 'x402-enabled':42 'x402-payment'","prices":[{"id":"12b41d5b-0352-4d0a-8bfe-2a8ad3883d77","listingId":"7bb4040e-c5bc-46f6-ba2e-e71ecb61d020","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/orders/16","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:36:05.267Z"}],"sources":[{"listingId":"7bb4040e-c5bc-46f6-ba2e-e71ecb61d020","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/16","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:05.267Z","lastSeenAt":"2026-04-23T19:00:40.169Z"}],"details":{"listingId":"7bb4040e-c5bc-46f6-ba2e-e71ecb61d020","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/16 \\\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":"All endpoints priced at $0.02 per request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base","source_url":"https://lowpaymentfee.com/api/v1/orders/16"},{"claim":"Available API categories include Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages /docs, /pricing, /api, /README show only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing AI inference endpoints (sentiment, summarization, classification, embeddings) without API key management","Fetching real-time financial data like token quotes, exchange rates, and gas estimates on a per-call basis","Running data analytics queries and exporting reports with instant crypto-settled micropayments","Using utility services like geocoding, validation, and conversion without subscription commitments"],"bestFor":["Agents and developers who want zero-signup, pay-as-you-go API access","Crypto-native applications that can settle USDC payments on Base","Low-volume or bursty workloads where per-request pricing is more economical than subscriptions"],"notFor":["Users who need detailed API documentation, request/response schemas, or SLA guarantees before integrating","High-volume production workloads where per-request costs at $0.02 would be expensive compared to bulk plans"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.887Z"},"updatedAt":"2026-04-23T19:00:40.169Z"}}