{"id":"f64cfccd-a8a2-448f-90bc-5f7727496695","shortId":"3gTE37","kind":"x402","title":"x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request.","tagline":"x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request.","description":"lowpaymentfee.com is an x402-protocol API platform that gates access to a variety of endpoints behind per-request USDC micropayments on the Base network. The specific endpoint at `/api/v1/orders/36` is labeled \"Premium API Access\" and accepts POST requests, requiring up to 20,000 base units of USDC (i.e., $0.02) per call. Payment is handled via the x402 exact scheme with no API keys or rate limits required — callers simply attach an X-PAYMENT header to each request.\n\nThe broader platform advertises four categories of endpoints: 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 listed endpoints share the same $0.02 per-request pricing.\n\nDocumentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawled material. The endpoint is confirmed live (returning a proper 402 challenge), but the actual behavior and response format of `/api/v1/orders/36` specifically is unknown beyond its description as \"Premium API Access.\"","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","per-request-billing","no-api-key","post-endpoint","json-response"],"categories":["api-gateway","payments"],"synonyms":["x402 API","micropayment API","pay-per-request API","USDC API access","Base network API","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no technical content","The specific endpoint /api/v1/orders/36 is labeled 'Premium API Access' but its actual functionality is undocumented","Cannot verify what data or service this endpoint actually returns"],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/36","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/36","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live with a valid 402 x402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the specific purpose of /api/v1/orders/36 is entirely opaque. This is effectively a stub listing.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-18T21:48:24.144Z","embedding":[-0.03866577,-0.029754639,0.028762817,0.005420685,0.017486572,-0.034118652,-0.033935547,0.035186768,0.05731201,-0.074523926,0.029144287,-0.05319214,-0.032318115,-0.026184082,-0.031921387,0.0018148422,-0.015625,0.001996994,-0.058807373,0.054351807,0.044158936,-0.02003479,-0.020736694,0.025802612,-0.022903442,-0.017822266,0.014717102,-0.011756897,-0.015449524,-0.034057617,0.040496826,-0.028793335,-0.0036697388,0.021499634,-0.0063323975,-0.022506714,0.002450943,0.044769287,0.033355713,0.008796692,0.0042877197,-0.049865723,0.010681152,-0.00907135,-0.04486084,-0.004524231,0.009017944,-0.023544312,-0.02154541,0.0024223328,-0.028869629,-0.008140564,-0.021224976,0.0256958,0.017532349,0.014823914,-0.007972717,-0.013053894,0.018203735,0.010665894,-0.022155762,-0.067993164,-0.010093689,0.005355835,0.0066566467,0.048736572,-0.0079422,0.039367676,0.019897461,0.063964844,0.020843506,0.04321289,0.027999878,-0.0013027191,0.012619019,-0.012649536,-0.003320694,0.05508423,-0.015464783,-0.020126343,-0.036621094,-0.018936157,-0.05432129,-0.017059326,-0.017288208,-0.0657959,-0.014945984,0.012069702,-0.03439331,0.031707764,-0.07525635,-0.009002686,-0.0038471222,0.008995056,-0.0020446777,-0.002527237,-0.01838684,0.022857666,-0.009681702,0.017120361,0.006790161,-0.054718018,0.008216858,0.009132385,0.045196533,0.038238525,0.004360199,0.03173828,0.006061554,-0.02192688,-0.02532959,0.004951477,-0.013450623,-0.01133728,0.015991211,0.009559631,-0.005050659,0.020339966,-0.035308838,0.02418518,-0.0524292,0.052520752,0.01928711,-0.0119018555,-0.0021896362,-0.037506104,-0.018463135,-0.0063819885,-0.03527832,-0.0077056885,0.03387451,0.013587952,0.037322998,-0.037322998,-0.03201294,0.0036792755,-0.0006098747,-0.01789856,-0.048950195,-0.0146102905,0.040649414,-0.03805542,0.020996094,0.019332886,-0.09991455,0.004085541,-0.05770874,0.01878357,-0.029251099,0.0032691956,0.0053977966,0.018951416,-0.020553589,-0.03225708,-0.018585205,-0.02545166,-0.01197052,0.03100586,-0.009963989,0.03289795,-0.015670776,0.028549194,0.016647339,0.0023784637,0.01222229,0.02456665,-0.008377075,-0.081604004,-0.09259033,-0.03604126,-0.012901306,0.0009756088,-0.035339355,-0.014427185,-0.0032176971,-0.07128906,-0.023452759,-0.016098022,-0.0024776459,-0.043121338,-0.0076675415,-0.022506714,0.010681152,-0.018554688,-0.052581787,-0.020233154,-0.045410156,0.062194824,0.0012321472,0.0047912598,0.010101318,0.0036258698,0.05770874,0.033843994,0.0058631897,-0.037506104,0.00042390823,-0.022247314,0.046813965,0.010772705,0.0129470825,-0.032409668,0.03793335,0.057281494,0.004486084,-0.03579712,0.008071899,-0.04852295,-0.04147339,-0.021530151,0.012252808,0.0021324158,-0.02949524,0.017623901,-0.039093018,-0.047332764,-0.012779236,0.010879517,0.01977539,0.07470703,0.0075531006,0.002691269,0.010185242,0.021072388,-0.03881836,0.053253174,0.045135498,0.013160706,-0.028717041,-0.018341064,0.018875122,0.04257202,-0.028656006,0.011947632,-0.027145386,0.02609253,-0.010536194,0.008087158,0.03604126,-0.025314331,-0.0103302,-0.02670288,-0.020248413,0.02583313,0.011772156,-0.03527832,-0.04043579,-0.075927734,0.03060913,0.05444336,0.03149414,-0.0041236877,-0.00843811,-0.027542114,-0.0007414818,-0.07122803,0.040161133,0.07116699,-0.008155823,-0.016601562,0.02532959,0.012390137,-0.026550293,0.0068206787,0.010444641,-0.02394104,-0.016174316,0.010253906,-0.038269043,0.0024490356,0.015174866,0.030258179,0.049194336,-0.014701843,-0.05114746,-0.023483276,-0.011123657,-0.002910614,-0.023269653,-0.00065517426,0.001411438,0.014503479,0.045196533,-0.0006175041,0.01727295,0.0023441315,0.011009216,-0.0038604736,-0.015731812,-0.03289795,-0.02999878,0.012489319,0.00774765,-0.07647705,0.009468079,-0.009963989,0.07458496,-0.043029785,0.038726807,-0.020004272,0.019195557,0.042633057,-0.015670776,-0.030471802,0.0026283264,0.017730713,0.032470703,0.037902832,0.007003784,-0.01550293,-0.014480591,0.067871094,-0.021957397,0.0047035217,-0.0040779114,0.026031494,0.044555664,0.0070648193,-0.04888916,-0.048217773,-0.0058670044,-0.04421997,0.016952515,-0.02720642,0.032104492,-0.009056091,0.016098022,-0.027038574,-0.00008827448,-0.031555176,0.0042877197,-0.019989014,-0.0035991669,-0.021362305,-0.029220581,0.013290405,0.02772522,-0.017318726,0.01889038,0.028900146,0.026565552,-0.008964539,-0.033325195,-0.021484375,-0.01852417,-0.010284424,0.0015306473,0.019256592,0.018341064,0.038116455,-0.043884277,-0.004169464,0.028503418,0.00065279007,0.041229248,-0.018661499,0.020568848,-0.068481445,-0.057525635,-0.021484375,-0.037719727,0.022705078,0.009536743,0.0024585724,0.04763794,0.0026626587,-0.02279663,-0.04043579,0.003129959,-0.040893555,0.004585266,0.04486084,-0.022232056,-0.04260254,-0.0049743652,-0.0049819946,0.01625061,0.03829956,0.01638794,0.015670776,0.06817627,0.036071777,0.014343262,0.0345459,0.0060920715,0.029541016,-0.0044288635,-0.012481689,-0.03503418,-0.016662598,0.02519226,-0.031585693,-0.0020065308,-0.061920166,0.044158936,0.031311035,0.09637451,-0.009857178,0.0016641617,0.035858154,-0.010551453,0.0110321045,-0.018859863,-0.018829346,-0.025512695,-0.05090332,0.030471802,-0.00920105,-0.009391785,-0.022766113,0.026748657,0.008026123,0.012786865,-0.028686523,0.049102783,-0.00724411,0.0002939701,-0.0050621033,0.0039787292,0.052642822,0.04067993,-0.048614502,0.007987976,0.032409668,-0.023040771,-0.0071258545,0.028045654,-0.014503479,-0.016067505,-0.060302734,-0.026824951,-0.025497437,-0.012992859,-0.06530762,0.003900528,-0.00017631054,0.034057617,0.0013694763,-0.0054969788,-0.023239136,0.007484436,-0.016494751,-0.05053711,-0.004940033,-0.049316406,0.012748718,0.027832031,-0.030792236,-0.0014371872,-0.00970459,-0.00983429,-0.0018262863,0.022659302,0.0052261353,-0.0004196167,-0.041656494,0.021530151,-0.0034122467,-0.00043582916,0.03274536,0.019485474,0.039245605,0.016662598,0.041503906,0.0010900497,-0.014915466,-0.058502197,0.002336502,-0.047973633,0.0051193237,-0.004585266,-0.011039734,-0.009025574,-0.018234253,-0.02619934,-0.007118225,0.009803772,-0.02507019,0.003622055,0.03866577,-0.041229248,-0.033813477,-0.064086914,-0.020645142,-0.0035686493,0.09161377,0.01828003,-0.013038635,-0.05758667,-0.019485474,0.017471313,-0.0018434525,0.023025513,-0.0154800415,-0.006198883,-0.017745972,-0.03665161,-0.03829956,-0.018508911,0.035247803,-0.0014858246,-0.013008118,0.025314331,-0.008476257,0.015426636,-0.013496399,-0.006629944,0.023223877,-0.015945435,-0.009712219,-0.032928467,0.022598267,0.002286911,-0.00095653534,-0.03692627,0.04800415,0.012962341,0.041778564,-0.04510498,-0.0062332153,-0.01776123,0.02748108,0.022476196,-0.021499634,-0.005290985,0.010292053,-0.03488159,-0.044799805,0.04360962,-0.022903442,0.012756348,0.0049476624,0.0124053955,0.03729248,-0.014640808,0.02078247,0.030792236,-0.03262329,-0.0063056946,-0.014694214,-0.040496826,-0.008178711,0.0035095215,-0.01737976,0.023590088,-0.014305115,0.009498596,-0.017044067,-0.019683838,0.051849365,0.01474762,0.006362915,0.01965332,0.016204834,0.018249512,0.051116943,0.019882202,-0.046936035,0.037322998,0.006843567,0.008163452,-0.0004968643,0.054718018,0.025299072,-0.016342163,-0.0075263977,-0.011131287,-0.016098022,-0.018707275,-0.02268982,0.0077667236,0.027160645,-0.0002989769,-0.03378296,0.015571594,0.02116394,-0.018188477,-0.022613525,0.019592285,0.0069389343,-0.04055786,0.0256958,0.03173828,0.058929443,-0.03213501,0.0025100708,0.01260376,0.030670166,0.018066406,0.014961243,-0.016204834,0.0079956055,-0.022369385,0.006385803,0.003540039,-0.009735107,0.022155762,-0.0036735535,0.022018433,0.029815674,0.021652222,-0.033050537,-0.034179688,0.010437012,-0.02357483,-0.021896362,0.0385437,0.02571106,0.02230835,-0.012649536,0.03036499,0.017593384,-0.04019165,-0.017791748,-0.023330688,0.044708252,-0.0075531006,-0.0016841888,0.025131226,0.010055542,0.02432251,-0.05154419,-0.008255005,0.015602112,0.017059326,-0.0143966675,-0.038360596,-0.037261963,-0.0048332214,0.037109375,0.0057296753,0.0065727234,0.01889038,0.009178162,0.008155823,0.015037537,-0.002275467,-0.0055618286,-0.014373779,-0.051116943,-0.016311646,-0.00969696,0.0028381348,-0.02609253,0.02130127,-0.0141067505,-0.01965332,0.0045776367,-0.027862549,0.0022392273,-0.012641907,-0.0066337585,0.028533936,0.0015535355,0.020874023,-0.014251709,-0.02255249,-0.0045547485,0.009765625,0.028213501,-0.036834717,0.016723633,-0.0015182495,-0.00242424,-0.014701843,0.015411377,0.0118255615,0.017532349,0.016998291,0.042419434,-0.02078247,0.0340271,-0.029327393,0.0118255615,-0.0076789856,-0.03668213,-0.013809204,-0.025375366,-0.016845703,0.039367676,-0.027755737,-0.006565094,-0.019317627,-0.026428223,-0.01763916,-0.055786133,0.014427185,0.03111267,0.033935547,-0.026733398,0.0013103485,0.012748718,0.012817383,-0.017486572,0.0045280457,-0.008140564,0.020111084,0.023483276,-0.005264282,-0.021270752,-0.019195557,-0.012107849,-0.0026950836,-0.04901123,-0.047210693,-0.009971619,0.0063095093,-0.0014896393,-0.011108398,-0.028579712,-0.03326416,0.007133484,-0.029327393,0.014465332,0.010826111,0.0093307495,0.004398346,-0.028930664,0.0027828217,0.020065308,-0.021316528,0.02078247,-0.006549835,-0.019134521,-0.051208496,-0.00074863434,0.04345703,0.022262573,0.006072998,-0.026489258,0.0034732819,-0.019165039,-0.046325684,-0.0050697327,-0.0152282715,0.0073051453,0.002664566,0.0071258545,-0.052246094,-0.0013141632,-0.037353516,0.0046157837,0.024780273,0.018829346,0.011001587,-0.007091522,0.004714966,-0.0032997131,-0.01209259,-0.039611816,0.0062065125,0.011192322,-0.006828308,0.021377563,0.043792725,-0.0049705505,-0.005207062,-0.012672424,-0.0038166046,0.029083252,-0.023666382,0.0057525635,-0.019805908,0.01737976,-0.003835678,-0.008369446,-0.040496826,-0.0044670105,0.064331055,-0.0011301041,0.018325806,-0.000893116,-0.00680542,0.028869629,0.03149414,-0.03845215,-0.008781433,-0.01386261,0.022140503,-0.026947021,0.006843567,-0.00667572,0.03137207,-0.023010254,-0.0569458,-0.006904602,0.013877869,-0.0023727417,-0.06878662,-0.02368164,-0.07080078,-0.0012350082,-0.018417358,-0.019714355,-0.0035266876,0.005168915,-0.019760132,-0.07421875,0.0040245056,0.05621338,0.005783081,0.030685425,-0.016311646,0.021316528,0.0345459,-0.024932861,-0.013313293,0.014533997,-0.02180481,-0.022994995,-0.035247803,0.031066895,-0.015213013,-0.017913818,0.016738892,0.01600647,0.02041626,-0.0056991577,0.023651123,-0.01084137,0.016662598,-0.01158905,0.018188477,-0.0023841858,-0.01071167,0.039001465,-0.053863525,0.038360596,0.008110046,-0.002658844,0.0038490295,0.0317688,0.021224976,-0.043029785,-0.012535095,0.037231445,0.018554688,0.019134521,-0.021728516,0.041778564,0.024658203,-0.009140015,0.009162903,-0.012367249,-0.02796936,-0.03955078,-0.054626465,0.023330688,0.00844574,0.012557983,-0.0040512085,0.0036125183,0.02017212,0.000849247,0.006565094,-0.024093628,-0.025558472,-0.022918701,0.005630493,-0.0012369156,-0.002796173,0.0030097961,0.017181396,0.027679443,0.040924072,0.0023097992,-0.007835388,0.02017212,0.034484863,-0.014877319,0.003660202,0.015571594,0.006126404,0.015777588,0.020996094,0.02545166,-0.049591064,-0.019897461,-0.026947021,-0.00011706352,-0.0035953522,-0.00440979,-0.016326904,-0.0061073303,0.0037269592,0.0032806396,-0.04849243,0.007865906,-0.019851685,-0.022705078,-0.016326904,-0.016052246,0.029891968,0.014755249,-0.005657196,0.012084961,-0.0026950836,0.05404663,-0.009536743,-0.009819031,0.025024414,0.049865723,0.027008057,-0.034729004,-0.0077323914,-0.008758545,-0.007270813,0.007534027,-0.011352539,0.013580322,0.035064697,-0.012580872,0.0017194748,-0.0013008118,0.023544312,-0.005592346,0.012397766,-0.019607544,0.007118225,-0.017944336,0.04119873,-0.049224854,0.008659363,0.025970459,0.0029258728,-0.004760742,-0.018310547,-0.022506714,0.026321411,0.00001257658,-0.0059547424,0.050842285,-0.0104522705,0.020004272,-0.029464722,-0.029251099,0.00066947937,-0.015144348,-0.03265381,0.022659302,-0.012680054,0.008384705,0.0079422,-0.02293396,0.03527832,-0.030044556,0.009811401,0.014854431,0.009223938,-0.02116394,-0.021652222,-0.012466431,-0.020645142,-0.010986328,-0.006965637,-0.00020885468,0.030822754,0.031585693,0.02494812,0.03213501,0.0129852295,0.01109314,-0.035614014,-0.013259888,0.0052757263,-0.021057129,0.014839172,-0.02619934,0.041625977,0.0340271,0.008377075,0.031555176,0.03189087,0.03918457,0.0011129379,0.007904053,-0.015281677,0.023742676,-0.022155762,0.019851685,0.00233078,0.046691895,-0.035491943,0.012481689,0.0030345917,0.027267456,-0.019958496,0.03010559,0.07171631,0.03463745,0.004940033,0.035827637,-0.007911682,-0.0023021698,-0.0104904175,-0.019424438,0.051086426,0.0029888153,0.045074463,0.026687622,-0.0044822693,-0.009185791,0.027435303,-0.033477783,-0.019622803,0.04257202,0.036834717,-0.029754639,0.0045280457,-0.0037136078,0.004333496,-0.04537964,-0.029724121,0.010955811,0.005744934,0.016098022,-0.00018489361,-0.005393982,-0.012878418,0.013641357,0.013931274,0.009475708,-0.0076522827,0.011779785,0.026824951,-0.0026569366,0.029815674,0.009277344,0.024963379,-0.02911377,-0.02368164,0.012512207,0.009796143,-0.0048980713,-0.0032424927,0.02696228,0.012489319,0.035858154,0.033935547,-0.016601562,-0.004550934,0.016494751,0.015991211,-0.00037574768,0.04800415,0.03704834,0.019332886,0.044006348,0.046661377,0.019851685,-0.024917603,0.0076942444,-0.016845703,0.003063202,-0.014518738,-0.022735596,0.010124207,0.0032844543,0.017089844,0.015808105,-0.0010662079,0.02722168,0.025283813,-0.004081726,0.007774353,-0.004722595,0.012710571,-0.010353088,-0.0029029846,0.010215759,-0.011062622,0.029434204,0.015342712,0.036346436,-0.03225708,0.029281616,-0.00017774105,-0.020828247,0.0051193237,0.0095825195,-0.032196045,0.0041542053,0.00069618225,-0.012870789,-0.03475952,0.011909485,0.021759033,-0.0079422,0.021057129,0.019424438,-0.0036067963,-0.0027256012,0.02204895,0.026245117,-0.01663208,-0.011779785,-0.017913818,0.026733398,0.04248047,0.016677856,0.003326416,-0.022567749,0.005924225,0.008720398,-0.015335083,0.0020332336,0.010894775,-0.009750366,-0.015792847,0.019104004,0.03326416,0.02078247,0.033325195,-0.0154800415,-0.008918762,0.0058059692,0.02748108,0.019577026,0.0033035278,0.0036354065,0.01727295,-0.020050049,0.032165527,0.023101807,-0.0011987686,0.02470398,-0.00064229965,-0.001868248,0.009124756,-0.023483276,0.006542206,-0.018554688,0.009155273,-0.01133728,0.022705078,-0.020568848,-0.046081543,0.004261017,-0.010810852,-0.018585205,-0.018341064,0.01876831,0.0013341904,0.021560669,0.04058838,0.031280518,-0.02432251,0.062805176,-0.021911621,0.05545044,-0.010292053,-0.01285553,0.059936523,0.033477783,0.03237915,0.006175995,0.006904602,-0.022323608,0.016647339,0.03640747,0.023849487,0.010787964,-0.003042221,-0.012359619,0.03933716,0.0008573532,0.03375244,0.0062561035,0.008346558,0.017974854,-0.0059890747,-0.014251709,-0.012992859,-0.014343262,0.008415222,0.06311035,-0.013656616,-0.012992859,-0.024902344,-0.02532959,0.021194458,-0.015266418,0.0015325546,0.010932922,-0.024230957,0.011352539,-0.032592773,-0.0079574585,0.014595032,0.023727417,-0.055664062,-0.019729614,0.009361267,0.032928467,-0.03616333,0.029281616,0.019058228,-0.010925293,0.022140503,0.045440674,0.0007200241,0.034118652,-0.010131836,0.025054932,0.03781128,0.008110046,-0.011528015,0.0024089813,0.012077332,-0.0154953,0.014595032,0.035736084,-0.0066490173,0.004131317,0.0038261414,-0.0028018951,0.0070724487,0.016845703,-0.0072135925,0.004470825,0.00011885166,-0.0051651,0.010681152,-0.0011463165,0.0028877258,0.0011415482,0.005268097,-0.010658264,0.012420654,0.03543091,0.01637268,-0.033416748,0.010665894,0.021636963,0.0029296875,-0.023803711,-0.019943237,-0.0062675476,-0.021850586,0.0093307495,0.018798828,0.016983032,0.012077332,-0.030578613,0.000011384487,0.032836914,0.0158844,0.018569946,-0.0015220642,-0.015975952,0.01939392,-0.01966858,-0.010627747,-0.0047340393,-0.012718201,-0.0039787292,0.014251709,-0.0113220215,-0.022857666,0.010414124,0.0040397644,0.014022827,-0.0023555756,-0.0102005005,0.0075645447,-0.013839722,-0.010879517,0.014160156,0.010971069,-0.011734009,-0.01335144,-0.027893066,0.043701172,0.059143066,-0.014877319,-0.005470276,0.005104065,0.00831604,0.020584106,0.037475586,0.017486572,0.03805542,0.021530151,-0.011245728,-0.03189087,0.022918701,-0.015640259,-0.023788452,0.021331787,-0.015342712,-0.01474762,0.012382507,0.0037460327,-0.0075645447,-0.016921997,-0.014503479,-0.004005432,-0.02519226,0.024459839,-0.010894775,0.019622803,-0.02772522,-0.010681152,0.01713562,-0.025924683,-0.03967285,-0.022567749,-0.007713318,-0.019424438,-0.05331421,0.0066604614,-0.02911377,-0.0014724731,-0.015670776,-0.0013923645,-0.003900528,0.026626587,-0.007171631,0.0003786087,0.0022563934,0.031280518,0.0039978027,0.00869751,0.018066406,-0.016906738,-0.025177002,-0.026733398,-0.009803772,-0.0019931793,0.02420044,-0.0074005127,0.039855957,0.017105103,-0.0075263977,0.0016765594,-0.016281128,-0.0014486313,-0.012588501,-0.038360596,-0.022018433,0.009643555,0.022598267,-0.009376526,-0.0011758804,0.039123535,-0.012504578,-0.01889038,0.010108948,0.03149414,0.010795593,0.0418396,-0.010986328,-0.0005030632,-0.014907837,0.002922058,0.002450943,0.01651001,0.0031604767,-0.0118637085,0.0009522438,-0.010925293,0.034332275,-0.021636963,-0.018875122,0.026000977,0.0132751465,-0.011123657,0.055725098,0.020050049,0.007080078,-0.015022278,-0.022399902,0.030258179,0.055145264,0.013259888,0.018936157,-0.00083875656,0.004360199,-0.014625549,0.005382538,0.010360718,-0.016601562,-0.048919678,-0.012886047,-0.030578613,0.030715942,0.0027065277,0.018615723,-0.008773804,0.008056641,-0.007896423,-0.03189087,-0.02885437,0.03375244,0.004638672,-0.02067566,-0.009407043,0.0078125,0.006713867,-0.02772522,-0.0033874512,-0.041900635,-0.022644043,-0.023880005,-0.018112183,0.03010559,0.0066986084,-0.0036888123,0.0039138794,-0.007850647,-0.008140564,0.002916336,0.02684021,-0.012535095,0.0016307831,0.021713257,0.023956299,-0.024246216,0.020690918,-0.0052719116,-0.0056495667,0.010643005,-0.014251709,0.02494812,-0.014717102,0.02709961,0.012054443,-0.012306213,0.025878906,0.0069770813,0.021575928,-0.030044556,-0.0054740906,-0.0029697418,0.007659912,0.032409668,-0.015144348,-0.021316528,0.016616821,-0.019195557,-0.025650024,0.009864807,0.029296875,0.014541626,-0.03475952,0.0473938,-0.014480591,0.0017442703,0.006412506,0.013008118,-0.019195557,0.0064811707,0.049591064,-0.006454468,0.0071372986,0.0018548965,-0.013648987,-0.029968262,-0.0084991455,0.010070801,-0.0018444061,-0.012649536,0.020187378,0.008659363,0.04928589,-0.010276794,0.017059326,0.022445679,-0.007259369,0.036895752,0.005306244,0.035583496,0.017211914,-0.030181885,0.0016565323,0.005592346,-0.024749756,0.0042495728,0.0016393661,0.009155273,-0.01713562,0.0044441223,-0.014251709,0.025772095,-0.030319214,0.00687027,-0.019699097,-0.012809753,-0.040649414,0.0033092499,-0.033477783,0.00724411,0.049835205,0.013183594,0.0143966675,-0.0045928955,-0.029510498,0.03074646,0.05657959,0.0057792664,-0.034210205,-0.010284424,0.005268097,-0.0033493042,-0.012954712,0.011367798,-0.01914978,-0.019943237,0.0015716553,-0.010696411,-0.004573822,-0.011779785,0.03137207,0.007858276,-0.007106781,-0.007865906,0.024124146,0.0077323914,0.0018367767,-0.0020256042,0.0016231537,0.026947021,0.040771484,-0.014266968,0.02067566,0.027908325,-0.035125732,0.05215454,-0.012649536,0.016235352,-0.016860962,0.009887695,-0.034332275,-0.022781372,-0.00459671,0.0009551048],"createdAt":"2026-04-18T18:35:21.615Z","updatedAt":"2026-04-24T13:31:34.242Z","lastSeenAt":"2026-04-24T13:31:34.242Z","tsv":"'/api':173 '/api/v1/orders/36':65,226 '/docs':172 '/pricing':174 '/readme':176 '/request':17,34 '0.02':16,33,85,162 '000':79 '20':78 '402':216 'Base network API' 'USDC API access' 'accept':72 'access':45,70,236 'actual':220 'advertis':118 'ai':10,27,130 'analysi':134 'analyt':124 'api':4,21,41,69,98,235 'attach':106 'avail':203 'base':7,24,59,80 'base-network' 'behavior':221 'behind':51 'beyond':230 'broader':116 'call':87 'caller':104 'categori':120 'challeng':217 'classif':137 'confirm':211 'connect':182 'convers':154 'crawl':206 'data':9,26,123,127 'descript':232 'detail':189 'document':167,198 'embed':138 'endpoint':14,31,50,63,122,158,209 'estim':148 'exact':94 'exampl':202 'exchang':143 'export':128 'extrem':169 'feed':142 'financ':11,28,139 'format':224 'four':119 'gas':147 'gate':3,20,44 'generat':155 'geocod':152 'handl':90 'header':111 'i.e':84 'infrastructur':150 'insight':129 'json-response' 'key':99 'label':67 'learn':132 'limit':102 'list':157 'live':212 'lowpaymentfee' 'lowpaymentfee.com':35 'machin':131 'materi':207 'metric':125 'micropay':56 'micropayment API' 'network':60 'no-api-key' 'offer':8,25 'openapi':193 'page':177 'pay-per-request API' 'payment':88,110 'per':53,86,164 'per-request':52,163 'per-request-billing' 'platform':5,22,42,117 'post':73 'post-endpoint' 'premium':68,234 'price':141,166 'prompt':184 'proper':215 'protocol':40 'quot':146 'rate':101,144 'render':179 'report':126 'request':54,74,114,165 'request/response':196 'requir':75,103 'respons':223 'return':213 'schema':197 'scheme':95 'sentiment':133 'share':159 'simpli':105 'spars':170 'spec':194 'specif':62,227 'summar':136 'technic':188 'text':135 'token':145 'unit':81 'unknown':229 'usag':201 'usdc':55,83 'usdc-micropayment' 'util':13,30,151 'valid':153 'varieti':48 'via':91 'wallet':183 'web3':140 'x':109 'x-payment':108 'x402':2,19,39,93 'x402 API' 'x402-gated':1,18 'x402-payment' 'x402-protocol':38","prices":[{"id":"8aea2f38-4971-4637-b1ea-594f5046085d","listingId":"f64cfccd-a8a2-448f-90bc-5f7727496695","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/36","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:35:21.615Z"}],"sources":[{"listingId":"f64cfccd-a8a2-448f-90bc-5f7727496695","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/36","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:21.615Z","lastSeenAt":"2026-04-24T13:31:34.242Z"}],"details":{"listingId":"f64cfccd-a8a2-448f-90bc-5f7727496695","quickStartSnippet":"# The endpoint returns 402 with an x402 challenge.\n# Attach an X-PAYMENT header with a signed USDC payment on Base.\ncurl -X POST https://lowpaymentfee.com/api/v1/orders/36 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network, requiring up to 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)","source_url":"https://lowpaymentfee.com/api/v1/orders/36"},{"claim":"All listed 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 platform offers endpoints across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only a 'Connect wallet' prompt with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing premium API data with per-call USDC micropayments on Base","Integrating pay-as-you-go API calls into agent workflows without API key management","Programmatic access to data, AI, finance, or utility endpoints with crypto settlement"],"bestFor":["Developers wanting keyless, pay-per-request API access","AI agents that can settle x402 payments autonomously on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","High-volume consumers who need bulk pricing or rate-limit guarantees","Users without access to USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:50.93Z"},"updatedAt":"2026-04-24T13:31:34.242Z"}}