{"id":"edd45df0-ffa4-4acb-ae1b-bce85cfc52f5","shortId":"cRywfP","kind":"x402","title":"x402-gated API endpoint on Base network, pay $0.02 per request in USDC — no API keys required.","tagline":"x402-gated API endpoint on Base network, pay $0.02 per request in USDC — no API keys required.","description":"This endpoint at `/api/v1/trades/156` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The specific `/trades/156` resource is listed under \"Premium API Access\" but its exact functionality is not documented beyond that label — it likely returns trade-related data for a specific resource ID (156).\n\nThe endpoint is live and responds with a valid x402 challenge on Base network. Payment is settled in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The platform advertises flat $0.02/request pricing across all endpoints, no API keys, no rate limits, and instant access. The x402 version is 1, using the \"exact\" payment scheme with a 300-second timeout.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no description of what data the `/trades/156` endpoint actually returns. The platform hosts many other endpoints across categories (analytics, AI, finance, utilities), all at the same $0.02 price point, but none have publicly visible documentation either.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","trade-data"],"categories":["finance","data"],"synonyms":["trade data API","x402 API","pay-per-call API","USDC micropayment API","lowpaymentfee","Base network API","crypto trade endpoint"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content","No OpenAPI or request/response schema provided; impossible to know what this endpoint returns","The specific purpose of /api/v1/trades/156 is unclear — 'Premium API Access' is a generic label","No information on what POST body, if any, is expected"],"endpointUrl":"https://lowpaymentfee.com/api/v1/trades/156","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/trades/156","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 challenge with clear pricing, but there is zero documentation on what the endpoint actually does, what inputs it accepts, or what it returns. No OpenAPI spec, no examples, and all doc pages are empty. The listing is effectively a stub.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-19T11:33:11.368Z","embedding":[-0.03262329,-0.025772095,0.030685425,0.015548706,0.021148682,-0.009590149,-0.0062942505,0.03253174,0.06762695,-0.061676025,0.023773193,-0.03479004,-0.037322998,-0.033447266,-0.017166138,-0.00082302094,-0.024765015,0.008972168,-0.057647705,0.038269043,0.043395996,-0.01977539,-0.019989014,0.018951416,-0.025756836,-0.012176514,-0.0014333725,-0.023529053,-0.048919678,-0.03286743,0.042907715,-0.026870728,-0.0055160522,-0.0067367554,-0.0064735413,-0.002998352,0.02267456,0.042877197,0.028396606,-0.009117126,0.024276733,-0.068359375,-0.0009946823,0.00374794,-0.044433594,-0.026535034,0.007873535,-0.005115509,-0.010475159,-0.014312744,-0.028808594,0.013717651,-0.028442383,-0.0018615723,0.0146102905,0.006214142,-0.011642456,-0.009941101,0.024841309,0.009025574,-0.0039787292,-0.06756592,-0.002571106,0.00081157684,0.015640259,0.038879395,-0.00033068657,0.04373169,-0.009407043,0.06994629,0.015235901,0.024002075,0.033721924,0.01914978,-0.005722046,0.011657715,-0.02444458,0.044555664,0.0017776489,-0.006996155,-0.012413025,-0.0039482117,-0.05206299,-0.017868042,-0.020401001,-0.071899414,-0.028182983,-0.0007195473,-0.030471802,0.026184082,-0.09082031,-0.015327454,0.02331543,0.012710571,-0.0016098022,-0.022369385,-0.014854431,0.02003479,-0.0057678223,0.021240234,0.0010633469,-0.012031555,0.017562866,0.019729614,0.052825928,0.04220581,0.03378296,0.006210327,0.0027313232,-0.011581421,-0.032958984,-0.0043907166,0.013381958,-0.012565613,0.004371643,-0.00038051605,-0.032592773,0.035461426,-0.017623901,0.041381836,-0.06124878,0.039489746,0.018310547,-0.009765625,-0.009132385,-0.038116455,-0.0038833618,-0.001405716,-0.024536133,-0.01096344,0.031951904,0.00058460236,0.018463135,-0.0015163422,-0.03363037,0.0105896,-0.014427185,0.001493454,-0.05545044,-0.02468872,0.04534912,-0.018005371,0.029754639,0.04107666,-0.11016846,0.011390686,-0.03253174,0.024291992,-0.029388428,-0.0096206665,0.018692017,0.017608643,-0.014442444,-0.026992798,-0.010955811,-0.021255493,-0.016036987,0.05142212,-0.0014915466,0.022369385,-0.0069351196,0.03970337,0.009643555,0.030807495,0.01979065,0.04058838,0.0040397644,-0.08416748,-0.076538086,-0.029418945,0.016983032,-0.003929138,-0.036743164,0.0053215027,-0.013381958,-0.09240723,-0.036834717,-0.004890442,-0.0076179504,-0.03717041,-0.010429382,-0.043518066,0.0048103333,-0.018630981,-0.03692627,-0.03225708,-0.028701782,0.036376953,0.0068473816,0.010803223,0.0178833,0.012779236,0.03604126,0.01789856,-0.0069770813,-0.025909424,0.010154724,-0.019134521,0.037231445,0.0030918121,0.03265381,-0.024459839,0.028182983,0.07196045,-0.017654419,-0.040771484,-0.0037059784,-0.048431396,-0.037994385,-0.028808594,0.0040779114,0.016326904,-0.011329651,0.0055351257,-0.035186768,-0.026657104,-0.00006681681,0.02178955,0.016845703,0.064697266,0.0135269165,0.0054969788,0.018875122,0.029937744,-0.03225708,0.045684814,0.032806396,0.00016891956,-0.023529053,-0.046936035,0.027313232,0.045684814,-0.03050232,0.0048980713,-0.0025959015,-0.00027251244,-0.0049438477,-0.016296387,0.0055007935,-0.00932312,-0.027313232,-0.040924072,0.0055007935,0.008895874,-0.009971619,-0.02619934,-0.044006348,-0.083740234,0.026290894,0.06359863,0.017120361,0.012901306,-0.021728516,-0.038848877,-0.020324707,-0.072753906,0.05307007,0.057800293,-0.020996094,-0.011909485,0.04815674,-0.018951416,-0.02583313,-0.025985718,-0.031433105,-0.019241333,-0.014724731,0.0064849854,-0.03353882,0.008056641,0.0284729,0.03253174,0.03286743,-0.028076172,-0.031677246,-0.046051025,-0.01828003,0.022460938,-0.024124146,-0.023803711,0.014915466,0.041168213,0.023208618,-0.0037059784,0.0070991516,0.00894165,0.0050735474,0.009277344,0.014038086,-0.017532349,-0.043395996,0.028060913,0.024505615,-0.08569336,0.014282227,-0.010566711,0.050598145,-0.039764404,0.03555298,-0.04336548,0.023147583,0.043884277,-0.019378662,-0.057861328,-0.0126953125,0.002527237,0.040740967,0.037506104,0.009353638,-0.011222839,-0.02319336,0.071899414,-0.016189575,-0.019897461,0.022613525,0.027664185,0.045654297,0.0008339882,-0.058166504,-0.031921387,-0.00026154518,-0.012626648,0.03753662,-0.016143799,0.03375244,-0.02746582,-0.006801605,-0.030944824,-0.0006456375,-0.04724121,-0.0006222725,-0.023788452,-0.003704071,-0.012130737,-0.010650635,0.030349731,0.020889282,-0.000310421,0.0011892319,0.035339355,0.014953613,-0.023117065,-0.03201294,-0.026947021,0.0077934265,-0.028259277,0.019256592,0.016052246,0.013923645,0.032592773,-0.031585693,-0.0018758774,0.004096985,-0.0034561157,0.04309082,-0.0054512024,0.00730896,-0.06665039,-0.041107178,-0.014892578,-0.041137695,0.021820068,0.0039138794,-0.004924774,0.04800415,0.004432678,-0.005252838,-0.01966858,0.01777649,-0.04321289,-0.007972717,0.055023193,-0.03451538,-0.03942871,0.014930725,0.0074310303,0.013092041,0.04522705,0.022705078,0.034851074,0.08404541,0.034240723,0.0055618286,0.016738892,-0.008056641,0.018737793,-0.0075683594,-0.002790451,-0.04296875,-0.024841309,0.011512756,-0.036621094,-0.03677368,-0.05130005,0.04486084,0.025146484,0.08581543,0.013977051,0.009819031,0.03741455,-0.010032654,0.013832092,-0.025543213,-0.047607422,-0.022827148,-0.026916504,0.009727478,-0.0021305084,-0.01512146,-0.01864624,0.04144287,0.020706177,0.010826111,-0.043792725,0.0340271,-0.028259277,-0.012184143,0.025299072,0.0012140274,0.055908203,0.057403564,-0.040039062,0.020446777,0.012916565,-0.03439331,0.0033111572,0.038391113,0.012641907,-0.021347046,-0.06011963,-0.03012085,0.0061149597,-0.007858276,-0.049468994,0.0067825317,0.007709503,0.025375366,0.013397217,-0.0063552856,-0.014556885,-0.0049743652,-0.009864807,-0.041259766,-0.00079870224,-0.03086853,0.007774353,0.044036865,0.0017681122,0.0045394897,0.00050497055,0.021972656,-0.0041770935,0.022445679,0.017745972,0.009841919,-0.05645752,0.03793335,-0.001376152,0.0149002075,0.03729248,0.028625488,0.03744507,0.016296387,0.0473938,0.011703491,-0.025543213,-0.07165527,0.026245117,-0.021514893,0.012145996,0.007297516,-0.04724121,-0.008079529,-0.013656616,-0.01939392,-0.0068855286,0.031311035,-0.022125244,0.021087646,0.023162842,-0.010215759,-0.033355713,-0.06561279,-0.019561768,0.018966675,0.06365967,0.024002075,0.0085372925,-0.049346924,-0.017471313,0.03050232,-0.0044403076,0.02444458,-0.014274597,-0.008590698,-0.008880615,-0.030471802,-0.03894043,-0.024917603,0.036590576,-0.0043792725,0.004310608,0.013412476,0.0060691833,-0.003932953,0.0031261444,-0.0093688965,0.030014038,-0.01890564,0.0068206787,-0.012245178,0.026290894,0.0146865845,-0.013015747,-0.05456543,0.033111572,-0.0053253174,0.052124023,-0.037628174,-0.008232117,-0.0026016235,0.013282776,-0.008155823,-0.02508545,-0.00013279915,-0.0048065186,-0.03237915,-0.07623291,0.02418518,-0.014030457,0.026138306,0.02104187,0.008293152,0.03314209,-0.007091522,-0.0053215027,0.013191223,-0.020385742,-0.016906738,-0.02633667,-0.02960205,-0.01600647,-0.0072898865,-0.02029419,0.03161621,-0.009651184,0.03161621,-0.0052375793,-0.015533447,0.029006958,0.027160645,0.0002758503,0.008377075,0.013900757,0.00020849705,0.03137207,-0.0007791519,-0.049591064,0.025009155,-0.008720398,-0.004798889,-0.0066223145,0.039093018,0.0107040405,-0.022003174,-0.0036716461,-0.011550903,-0.017028809,-0.025436401,-0.012420654,-0.005218506,0.012260437,0.006641388,-0.048736572,0.023925781,0.0041160583,-0.032714844,-0.021362305,0.025344849,0.018814087,-0.03970337,0.013626099,0.0030345917,0.06124878,-0.025924683,0.022018433,-0.006641388,0.038513184,0.017105103,0.0066070557,0.0062942505,0.011276245,-0.027389526,0.017700195,0.0029449463,-0.027877808,0.010360718,-0.005176544,0.025680542,0.008094788,0.0059928894,-0.010566711,-0.025253296,-0.012962341,0.006477356,-0.018814087,0.027313232,0.0061912537,0.016311646,-0.014984131,0.018753052,0.024780273,-0.03024292,-0.014335632,-0.015731812,0.032318115,0.00094747543,-0.0067100525,0.015792847,-0.0087509155,0.012527466,-0.04058838,-0.006439209,0.017089844,0.00031876564,0.0043792725,-0.046295166,-0.01260376,-0.0070343018,0.051239014,-0.0135269165,0.017089844,0.020523071,0.0021438599,0.0014972687,0.006706238,0.0025863647,-0.014450073,0.00058460236,-0.050994873,-0.022140503,-0.009643555,-0.005191803,-0.019210815,0.011260986,-0.033294678,-0.012924194,0.017150879,-0.020904541,-0.000089764595,-0.017684937,0.0031871796,0.024139404,-0.001613617,0.020812988,-0.010192871,-0.032043457,-0.0057754517,0.016067505,0.027160645,-0.008232117,0.025421143,-0.008865356,-0.0070724487,0.0008878708,-0.004245758,0.026046753,0.02949524,0.0068588257,0.036193848,-0.03552246,0.046295166,-0.022399902,0.020645142,-0.009529114,-0.023117065,-0.021743774,-0.021957397,-0.010398865,0.034210205,-0.014038086,-0.0063056946,-0.03253174,-0.045166016,-0.020721436,-0.05255127,0.019165039,0.03201294,0.044891357,-0.025421143,0.0021343231,0.006866455,0.00730896,-0.0010375977,-0.003250122,-0.01423645,0.030166626,0.03805542,0.0010290146,-0.03152466,-0.039855957,-0.010864258,-0.0019626617,-0.062683105,-0.042419434,-0.019104004,0.029754639,-0.013641357,0.000323534,-0.026138306,-0.033477783,0.005306244,-0.03125,-0.002796173,-0.007419586,0.020523071,0.0075683594,-0.006313324,-0.0011806488,0.022033691,-0.033294678,0.033294678,-0.014312744,0.004966736,-0.052520752,0.020339966,0.023849487,0.016647339,-0.004802704,-0.014785767,-0.007194519,-0.027023315,-0.046875,0.0024414062,0.01386261,-0.0135650635,-0.0020389557,-0.014205933,-0.04321289,-0.0051574707,-0.024139404,-0.004558563,0.00793457,0.014579773,0.015136719,0.002632141,0.016525269,0.010009766,-0.007987976,-0.026641846,0.014274597,0.010108948,-0.009628296,0.020355225,0.046875,0.0068588257,-0.024963379,-0.014160156,-0.0009698868,-0.006626129,-0.014015198,0.015991211,-0.01940918,0.030319214,-0.008834839,-0.008171082,-0.041229248,0.0036716461,0.06542969,-0.0030498505,-0.0075302124,-0.003458023,-0.009346008,0.0135269165,0.03640747,-0.04800415,0.00046896935,-0.040008545,0.032592773,-0.024429321,0.020370483,-0.0054397583,0.010902405,-0.016738892,-0.042755127,-0.0073051453,-0.0026226044,-0.00831604,-0.062072754,-0.040527344,-0.083618164,-0.0011758804,-0.031555176,-0.013023376,-0.010223389,-0.008308411,-0.026687622,-0.08917236,-0.00073337555,0.050567627,-0.0005531311,0.019226074,-0.029937744,0.011222839,0.04547119,-0.027389526,-0.019699097,0.008331299,-0.03173828,-0.01689148,-0.033325195,0.026306152,-0.014953613,-0.018493652,0.011917114,0.0043296814,0.01701355,-0.018997192,0.040283203,-0.008163452,0.011581421,-0.025848389,0.015945435,-0.017471313,-0.011955261,0.056671143,-0.042236328,0.032165527,0.017150879,0.001531601,0.013809204,0.024032593,0.03152466,-0.036346436,0.008651733,0.015342712,0.024642944,0.031982422,-0.021697998,0.053375244,0.022094727,0.000060141087,-0.005947113,-0.028259277,0.004207611,-0.034576416,-0.029052734,0.03050232,0.01210022,0.009307861,-0.018829346,-0.0024795532,0.012420654,0.012962341,-0.006046295,-0.00055265427,-0.018417358,-0.027175903,0.016357422,-0.00047588348,-0.00015342236,0.015068054,0.012290955,0.02494812,0.0340271,0.0076446533,-0.007259369,0.010749817,0.036712646,-0.013847351,0.0003042221,0.019256592,0.01838684,0.013084412,0.012527466,0.027816772,-0.04284668,-0.030212402,-0.012504578,-0.021026611,0.012237549,-0.0017194748,0.0054893494,-0.021209717,0.0042304993,0.011436462,-0.036895752,0.0004761219,-0.022033691,-0.024276733,0.00058841705,-0.0041007996,0.014389038,0.016403198,0.0016841888,0.011497498,-0.013793945,0.03125,0.005180359,0.0007195473,0.042541504,0.047454834,0.025009155,-0.031585693,0.003616333,-0.010848999,-0.03173828,0.0015630722,-0.02116394,0.033599854,0.04168701,-0.017532349,-0.004501343,-0.00868988,0.011016846,-0.011138916,0.014724731,0.006126404,0.005405426,-0.011383057,0.038635254,-0.034820557,0.0088272095,0.017822266,0.009605408,-0.002122879,-0.01789856,-0.027130127,0.016418457,0.013832092,-0.0077552795,0.0340271,-0.0075149536,0.027954102,-0.022567749,-0.0140686035,0.0021247864,-0.026229858,-0.021621704,-0.002281189,-0.01826477,-0.005832672,0.021759033,-0.031341553,0.02494812,-0.03427124,-0.0010290146,0.0010871887,0.012130737,-0.026824951,-0.026565552,0.00060272217,-0.020843506,-0.03024292,0.0047340393,-0.008163452,0.053222656,0.02166748,0.03378296,0.03265381,0.016403198,0.009780884,-0.035980225,-0.03366089,0.00051784515,-0.010223389,0.011238098,-0.023880005,0.044769287,0.03564453,0.00075626373,0.043945312,0.025314331,0.025161743,-0.005176544,0.012832642,-0.008872986,0.030731201,-0.028213501,0.027175903,-0.010894775,0.02947998,-0.034362793,-0.0016069412,0.0064964294,0.031921387,-0.024841309,0.037139893,0.062561035,0.013473511,-0.0010356903,0.040496826,-0.003271103,-0.021194458,-0.004005432,-0.008132935,0.052734375,0.0084991455,0.024841309,0.032592773,-0.0010251999,-0.002981186,0.011192322,-0.01638794,-0.038330078,0.05368042,0.013435364,-0.024505615,0.0047416687,-0.010475159,0.010009766,-0.02746582,-0.0045776367,0.028411865,-0.0039749146,0.0028305054,-0.0030326843,0.0005135536,-0.025619507,0.030578613,0.00019204617,0.021194458,-0.020065308,0.034606934,0.030731201,0.002494812,0.02508545,-0.000038206577,0.014801025,-0.009773254,-0.013038635,0.013290405,0.021606445,0.0053482056,-0.00097322464,0.023376465,0.021026611,0.047027588,0.03152466,-0.024932861,-0.014221191,0.024505615,0.023712158,-0.0079574585,0.035308838,0.019561768,0.009941101,0.045562744,0.03704834,0.028289795,-0.03012085,0.0087509155,-0.014312744,0.009536743,0.0034999847,0.01260376,0.015312195,-0.0152282715,0.019454956,0.006439209,-0.0023899078,0.028442383,0.02671814,-0.0067481995,-0.0025291443,-0.011451721,0.022155762,-0.0107421875,0.009613037,0.0041236877,-0.0045166016,0.027389526,0.019836426,0.027130127,-0.031341553,0.032989502,0.0052261353,-0.011833191,-0.020370483,0.017684937,-0.042663574,-0.0059013367,-0.007858276,-0.0056152344,-0.044036865,0.02508545,0.0119018555,0.00017082691,0.008140564,0.013954163,-0.009765625,-0.015625,0.03479004,0.0052452087,-0.0037670135,-0.005756378,-0.009376526,0.01928711,0.046051025,-0.0051345825,-0.0052604675,-0.016082764,0.0040740967,0.019882202,-0.007774353,-0.0042266846,0.00012564659,-0.00466156,-0.02746582,0.019195557,0.034210205,0.0061454773,0.06048584,-0.025894165,-0.017593384,-0.006969452,0.03338623,0.0126953125,0.00894928,-0.0026111603,0.013664246,-0.011512756,0.052825928,0.03930664,0.0019741058,0.036621094,-0.008674622,-0.0115356445,-0.0019416809,-0.006099701,0.012260437,-0.0005583763,0.012641907,-0.0042266846,0.026428223,-0.021865845,-0.042755127,0.0017547607,-0.036499023,-0.024642944,-0.017959595,0.011116028,-0.015022278,0.029373169,0.03503418,0.022872925,-0.01448822,0.064575195,-0.012008667,0.043670654,-0.0014648438,0.0020828247,0.048828125,0.017410278,0.035827637,0.019927979,0.025665283,-0.03149414,0.011390686,0.03677368,0.021621704,0.015197754,0.0010528564,-0.01474762,0.026245117,-0.0053215027,0.03378296,0.0010957718,-0.0066871643,0.017501831,-0.01146698,-0.017028809,0.0025291443,-0.0054740906,0.016433716,0.052001953,-0.010719299,-0.006793976,-0.027328491,0.006149292,0.01828003,0.0071487427,-0.00029802322,-0.015914917,-0.022369385,0.012741089,-0.033233643,-0.00598526,0.012763977,0.027023315,-0.05493164,-0.018096924,-0.008842468,0.027053833,-0.018371582,0.017150879,0.041900635,-0.015609741,0.0007572174,0.052337646,-0.0029773712,0.041107178,-0.0066070557,0.035461426,0.030838013,0.0032405853,-0.011444092,0.010253906,0.003250122,-0.013999939,0.01146698,0.051635742,-0.012336731,0.01071167,0.003917694,-0.0010967255,0.0040016174,0.014518738,-0.020050049,0.0059013367,-0.0056495667,-0.004638672,0.019958496,-0.0054397583,-0.011894226,-0.010108948,0.008720398,-0.01991272,0.020385742,0.0362854,0.0056114197,-0.060699463,-0.0009627342,0.01777649,0.0045280457,-0.013320923,-0.014823914,0.0013666153,-0.038116455,0.012954712,0.014038086,0.015083313,0.0020332336,-0.014312744,-0.0076179504,0.035186768,0.0043754578,0.009109497,0.028060913,0.0115356445,0.019363403,-0.02684021,-0.0030841827,-0.009361267,0.008682251,0.01727295,0.01889038,-0.02015686,-0.030715942,-0.0031700134,-0.002161026,0.008766174,0.012062073,0.004085541,0.023925781,-0.021102905,0.013679504,0.010765076,0.012527466,-0.010894775,-0.010353088,-0.01499176,0.015213013,0.05456543,-0.01007843,-0.011390686,0.02330017,0.009567261,0.012832642,0.039123535,0.011505127,0.020904541,0.024551392,-0.015701294,-0.01914978,0.01940918,-0.008804321,-0.033050537,0.012626648,-0.0040283203,-0.009819031,0.03201294,0.022338867,0.011909485,-0.03186035,-0.0088272095,-0.022415161,-0.021224976,0.009002686,-0.0124435425,-0.00013160706,-0.03250122,-0.030685425,0.020629883,-0.023773193,-0.011878967,-0.018722534,-0.008178711,-0.021087646,-0.0597229,-0.012870789,-0.0060310364,0.022033691,-0.016052246,0.014221191,0.010635376,0.03640747,0.009346008,-0.0033683777,0.018966675,0.019561768,-0.0019702911,0.0054244995,0.038330078,-0.020370483,-0.029296875,-0.02520752,0.0078125,-0.017608643,0.027282715,-0.010696411,0.015136719,0.008232117,-0.005344391,0.0015830994,0.00006365776,0.0009832382,-0.0052490234,-0.028411865,-0.027282715,0.016082764,0.035888672,-0.0047416687,-0.009391785,0.046325684,-0.02947998,-0.027618408,0.027908325,0.041229248,0.006828308,0.040863037,-0.01852417,0.0044898987,-0.022705078,0.0014123917,-0.017608643,0.0046577454,0.00046658516,0.0055999756,0.00756073,-0.0034809113,0.005809784,-0.016799927,0.0057792664,0.028625488,0.009887695,-0.0026855469,0.035827637,0.00084114075,-0.006389618,-0.016311646,0.00046133995,0.011924744,0.045959473,0.011642456,-0.008575439,-0.014480591,0.0146484375,-0.013458252,0.0010929108,0.030807495,-0.018096924,-0.051605225,-0.0027046204,-0.04336548,0.015945435,0.011978149,0.01096344,-0.017456055,-0.0032691956,-0.0070381165,-0.029937744,-0.00919342,0.02319336,0.017990112,-0.006214142,-0.01940918,0.0033359528,0.021408081,-0.039886475,0.00040102005,-0.042755127,-0.029525757,-0.025665283,-0.01852417,0.016235352,0.004760742,-0.0028934479,0.0158844,-0.0070533752,0.001282692,0.009788513,0.0287323,-0.009490967,-0.010658264,0.029708862,0.035705566,-0.008422852,0.01600647,0.0028533936,0.005344391,-0.004261017,-0.011703491,0.016494751,-0.010101318,0.023757935,0.0008511543,-0.008163452,0.028320312,0.0057678223,0.019836426,-0.033355713,-0.019226074,-0.015357971,-0.0022392273,0.029800415,-0.010192871,-0.033813477,0.014038086,-0.016738892,-0.03552246,-0.0033111572,0.013885498,0.025680542,-0.002670288,0.05267334,-0.024047852,-0.008369446,0.011016846,0.0066223145,-0.026489258,0.003419876,0.035308838,-0.000013053417,0.0047187805,-0.0025081635,-0.008392334,-0.023391724,-0.004020691,0.0047035217,-0.02784729,-0.009490967,0.009742737,0.031341553,0.04244995,-0.020950317,0.031021118,0.02508545,0.02420044,0.031066895,0.0068855286,0.03552246,-0.012664795,-0.017425537,0.010551453,0.010940552,-0.011787415,0.0073432922,-0.00005877018,0.0043640137,-0.024810791,0.01574707,-0.0082473755,0.03338623,0.0017499924,0.011421204,-0.015060425,-0.00094747543,-0.031433105,0.0067481995,-0.042755127,0.0041999817,0.03552246,0.021621704,0.03137207,-0.0015478134,-0.034423828,0.032836914,0.03741455,-0.0012426376,-0.040374756,-0.012191772,0.006916046,-0.003835678,0.0060043335,0.006439209,-0.02658081,-0.020355225,0.005393982,-0.005908966,0.003873825,-0.017028809,0.02684021,0.026916504,-0.005054474,-0.012420654,0.03491211,0.019058228,-0.012794495,-0.00365448,-0.004398346,0.049591064,0.034942627,-0.0005917549,0.016204834,0.02368164,-0.044006348,0.047027588,0.00045919418,0.012939453,-0.0075302124,0.005744934,-0.046051025,-0.003622055,-0.024368286,0.0050582886],"createdAt":"2026-04-18T18:57:35.230Z","updatedAt":"2026-04-26T08:03:30.663Z","lastSeenAt":"2026-04-26T08:03:30.663Z","tsv":"'/api/v1/trades/156':40 '/request':142 '/trades/156':69,208 '0.02':10,28,132,141,228 '000':127 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':120 '1':160 '156':99 '20':126 '300':168 '6':135 'Base network API' 'USDC micropayment API' 'access':76,155 'across':144,218 'actual':210 'advertis':139 'ai':221 'ai/ml':61 'amount':124 'analyt':60,220 'api':4,16,22,34,57,75,148,177 'base':7,25,112,128 'base-network' 'beyond':84 'call':56 'categori':219 'challeng':110 'collect':48 'connect':186 'content':192 'contract':119 'crypto trade endpoint' 'data':59,93,206 'decim':136 'descript':203 'doc':176 'document':83,171,236 'either':237 'endpoint':5,23,38,101,146,209,217 'equal':131 'exact':79,163 'extrem':173 'financ':222 'finance/web3':63 'flat':140 'function':80 'gate':3,21 'host':214 'id':98 'infer':62 'infrastructur':65 'instant':154 'key':17,35,149 'label':86 'like':88 'limit':152 'list':72 'live':103 'lowpaymentfee' 'lowpaymentfee.com':45 'mani':215 'maximum':123 'network':8,26,113 'no-api-key' 'none':232 'openapi':196 'page':181 'part':42 'pay':9,27,54 'pay-per-cal':53 'pay-per-call API' 'pay-per-request' 'payment':114,164 'per':11,29,55 'platform':46,138,213 'point':230 'premium':74 'price':143,178,229 'prompt':188 'protocol':52 'public':234 'rate':151 'readm':180 'relat':92 'render':183 'request':12,30 'request/response':199 'requir':18,36 'resourc':70,97 'respond':105 'return':89,211 'schema':200 'scheme':165 'second':169 'settl':116 'span':58 'spars':174 'spec':197 'specif':68,96 'substant':191 'timeout':170 'trade':91 'trade data API' 'trade-data' 'trade-rel':90 'unit':129 'usdc':14,32,118,133 'usdc-settlement' 'use':134,161 'util':66,223 'valid':108 'version':158 'visibl':235 'wallet':187 'x402':2,20,51,109,157 'x402 API' 'x402-gated':1,19 'x402-payment' 'x402-protocol':50","prices":[{"id":"05203543-e0ba-49ea-82fd-23a8b2631fed","listingId":"edd45df0-ffa4-4acb-ae1b-bce85cfc52f5","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/trades/156","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:35.230Z"}],"sources":[{"listingId":"edd45df0-ffa4-4acb-ae1b-bce85cfc52f5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/trades/156","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:35.230Z","lastSeenAt":"2026-04-26T08:03:30.663Z"}],"details":{"listingId":"edd45df0-ffa4-4acb-ae1b-bce85cfc52f5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/trades/156 \\\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":"Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/trades/156"},{"claim":"Platform advertises $0.02/request flat pricing, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/trades/156"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching trade-related data for resource ID 156 via a single paid API call","Integrating pay-per-request trade data into agent workflows without managing API keys","Demonstrating x402 protocol payment flows on Base network"],"bestFor":["Agents or developers wanting keyless, pay-per-call API access","x402 protocol experimentation and integration testing","Low-friction access to trade data without subscription commitments"],"notFor":["Users needing detailed API documentation or guaranteed SLAs before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:46.41Z"},"updatedAt":"2026-04-26T08:03:30.663Z"}}