{"id":"4510fda9-c20d-4b84-a000-37fffbe16a04","shortId":"u6vkPN","kind":"x402","title":"Crypto token data endpoint (USDT) payable per-request via x402 on Base network.","tagline":"Crypto token data endpoint (USDT) payable per-request via x402 on Base network.","description":"This endpoint at lowpaymentfee.com provides token-related data for USDT, accessible via the x402 payment protocol on the Base network. Each request costs $0.02 (20,000 base units of USDC with 6 decimals), settled on-chain to a specified wallet address. No API keys, rate limits, or subscriptions are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe provider hosts a broader suite of APIs spanning data & analytics, AI/ML inference (sentiment, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints follow the same $0.02-per-request pricing model and x402 payment flow on Base.\n\nDocumentation is extremely sparse — the /docs, /pricing, /api, 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 specific behavior of the `/api/v1/tokens/USDT` endpoint (what fields it returns, what parameters it accepts) is unknown beyond the x402 challenge metadata.","tags":[],"capabilities":["x402-payment","base-network","usdc-settlement","token-data","per-request-pricing","no-api-key","crypto-data"],"categories":["crypto","finance"],"synonyms":["USDT token info","tether data API","crypto token endpoint","x402 paid API","Base network API","USDT price data","stablecoin data"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no technical content.","No OpenAPI or schema definition found; request parameters and response format are unknown.","The specific data returned by /api/v1/tokens/USDT is not documented anywhere in the crawled material.","Provider appears to be a generic x402 API storefront; actual backend data sources and reliability are unclear."],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/USDT","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/tokens/USDT","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual functionality of the /tokens/USDT endpoint is entirely undocumented.","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":"2026-04-19T11:18:03.745Z","embedding":[-0.03579712,-0.033203125,0.04284668,0.009597778,0.023223877,-0.024536133,-0.0006580353,0.04458618,0.0574646,-0.062347412,0.005378723,-0.022079468,-0.034851074,-0.05935669,-0.019561768,-0.0340271,-0.0060653687,0.014724731,-0.018188477,0.032714844,0.02923584,0.0095825195,-0.025268555,0.020141602,-0.002254486,-0.014625549,0.00054979324,-0.007255554,-0.027526855,-0.02470398,0.028717041,-0.033355713,0.007801056,-0.029327393,0.010948181,0.022094727,0.011154175,0.036071777,0.03604126,-0.02229309,-0.0065345764,-0.066467285,0.0008869171,0.005317688,-0.045715332,-0.05130005,-0.0013389587,-0.017120361,-0.001783371,-0.0070266724,-0.028366089,-0.0012273788,-0.02229309,0.024963379,-0.011268616,0.00340271,0.004459381,0.0011053085,0.030212402,-0.019210815,0.016036987,-0.055267334,-0.013572693,-0.005355835,0.018341064,0.029937744,-0.015853882,0.02923584,-0.025970459,0.07336426,0.048797607,0.048187256,0.03253174,0.021957397,0.018417358,-0.022094727,-0.014442444,0.043670654,0.0076828003,-0.044036865,0.003791809,-0.0074653625,-0.06829834,-0.006549835,-0.019577026,-0.04534912,-0.010185242,0.008270264,0.0004284382,0.02986145,-0.07659912,-0.0035305023,-0.009353638,-0.020446777,0.005004883,-0.0368042,-0.011146545,-0.0036888123,0.0021247864,-0.0031204224,-0.024932861,-0.02859497,-0.013557434,0.01499176,0.052734375,0.0463562,0.01802063,-0.0037631989,0.010185242,-0.013336182,-0.016281128,0.0289917,0.002614975,-0.0138168335,0.012748718,0.012809753,-0.0440979,0.009101868,-0.0060424805,0.018127441,-0.031982422,0.021591187,0.045806885,0.02217102,0.009918213,-0.03527832,-0.031555176,0.011482239,-0.025390625,-0.0033950806,0.03805542,0.023468018,-0.0022678375,-0.012573242,-0.026321411,-0.00053167343,-0.029678345,0.02217102,-0.040649414,-0.030563354,0.03793335,-0.032287598,0.024398804,0.03805542,-0.10235596,-0.012176514,-0.038909912,0.0362854,-0.029449463,-0.0043640137,-0.014404297,-0.0039749146,0.0069274902,-0.017547607,0.008010864,-0.0435791,-0.028182983,0.050964355,-0.007080078,0.020736694,-0.014343262,0.03866577,0.018463135,-0.004081726,0.0062713623,0.014137268,0.0024261475,-0.08081055,-0.07775879,-0.04837036,0.01146698,-0.022140503,-0.021270752,0.020431519,-0.02684021,-0.06359863,-0.025970459,0.024749756,0.007068634,-0.048614502,0.01386261,-0.03567505,0.004634857,-0.0046691895,-0.023483276,-0.017456055,-0.038848877,0.07800293,0.016220093,0.048614502,-0.017227173,0.033966064,0.05255127,-0.00093984604,-0.033721924,-0.0077667236,-0.015365601,-0.019317627,0.015365601,-0.011894226,0.038391113,-0.03479004,0.024734497,0.051483154,0.015777588,-0.016601562,-0.00043082237,-0.04815674,-0.040222168,-0.023269653,0.017745972,0.0057640076,-0.030410767,0.012260437,-0.04095459,-0.012672424,-0.021942139,-0.0016098022,0.014732361,0.04888916,0.006046295,0.021194458,0.048553467,0.009475708,-0.0619812,0.0357666,-0.012641907,0.006996155,-0.0317688,-0.040039062,-0.0024700165,0.05508423,-0.01512146,0.011062622,-0.016708374,-0.0070343018,-0.02293396,-0.052520752,0.02078247,-0.02230835,-0.035125732,-0.04864502,-0.009246826,0.03555298,-0.008071899,-0.01737976,-0.027313232,-0.049560547,0.06738281,0.044281006,0.039611816,-0.0065231323,-0.0019702911,-0.029205322,0.014297485,-0.06616211,0.05368042,0.06665039,-0.014099121,0.0013856888,0.03652954,-0.0151901245,-0.03488159,-0.03060913,-0.0031166077,-0.017181396,-0.027160645,0.008865356,-0.046936035,-0.0107803345,0.048553467,0.008583069,0.03567505,-0.03201294,-0.064697266,-0.024520874,-0.011222839,-0.01838684,-0.019454956,-0.01109314,0.008201599,-0.0036449432,0.037628174,-0.019866943,-0.00047445297,-0.01701355,0.022583008,0.023010254,0.019378662,-0.003692627,0.0340271,0.022628784,0.02067566,-0.04727173,0.00116539,-0.00674057,0.074157715,-0.050994873,0.026657104,-0.027526855,-0.010025024,0.024398804,-0.026306152,-0.06512451,0.022476196,0.016601562,0.037261963,0.037597656,0.021636963,-0.009391785,-0.034606934,0.061706543,-0.030517578,0.018295288,-0.0057144165,0.03515625,0.05142212,-0.0024223328,-0.050079346,-0.04260254,-0.008956909,-0.046051025,0.043792725,-0.0149002075,0.045318604,-0.01940918,-0.0041046143,-0.020004272,0.018157959,-0.017623901,0.011978149,-0.0060539246,0.003479004,-0.024490356,-0.01600647,0.0209198,0.022354126,-0.02053833,0.0031604767,0.036712646,0.035705566,-0.031707764,-0.0135269165,-0.035614014,-0.024276733,-0.015899658,0.013969421,0.018493652,0.0041046143,0.040649414,-0.04083252,-0.0040893555,0.025436401,-0.010803223,0.035003662,0.007965088,-0.0038204193,-0.06604004,-0.036315918,-0.028015137,-0.0042152405,0.047851562,0.030761719,-0.003791809,0.06225586,0.002149582,-0.023483276,-0.010276794,0.014671326,-0.087524414,0.0074272156,0.030563354,-0.008384705,-0.015914917,0.016403198,-0.007537842,0.021850586,0.038391113,0.003578186,0.016601562,0.066345215,0.0060806274,0.010147095,0.014854431,0.020935059,0.026107788,0.023605347,0.004470825,-0.014968872,-0.024795532,0.04650879,-0.02859497,-0.017044067,-0.05239868,0.03363037,0.054901123,0.05706787,0.019699097,0.012702942,0.032440186,-0.008155823,0.0055770874,0.004386902,-0.015235901,-0.03213501,-0.0028266907,0.031677246,-0.013786316,0.0073432922,-0.014228821,0.042877197,-0.013031006,0.0024642944,-0.008026123,0.023590088,0.011688232,0.0029582977,0.016326904,0.013244629,0.049072266,0.017501831,-0.03933716,0.033477783,0.004085541,-0.054534912,-0.014595032,0.024627686,0.027328491,-0.029586792,-0.064697266,0.0020999908,-0.0044517517,0.003211975,-0.051605225,0.0010194778,0.020233154,0.0030727386,0.026794434,-0.03677368,-0.02746582,-0.018585205,-0.016967773,-0.037994385,0.004234314,-0.061645508,-0.010192871,0.038330078,-0.00869751,0.012634277,0.01259613,0.014663696,-0.0027065277,0.023620605,0.029037476,-0.0050468445,-0.034698486,0.015701294,0.0029907227,0.013374329,0.035980225,0.04449463,0.026367188,0.016967773,0.047424316,0.02067566,-0.022033691,-0.036010742,0.030563354,-0.034423828,-0.02015686,0.019699097,-0.030334473,-0.005607605,-0.020843506,-0.019561768,-0.028182983,0.043182373,-0.017684937,0.015075684,0.040740967,-0.01751709,-0.035369873,-0.087646484,-0.015914917,0.012435913,0.07281494,0.031799316,-0.0056266785,-0.0234375,0.002210617,0.013336182,-0.016860962,0.028884888,-0.011123657,0.0005302429,-0.0073890686,-0.03137207,0.004081726,0.0020923615,0.015411377,0.0046577454,-0.012550354,0.03186035,0.0057907104,0.023117065,0.023101807,-0.004360199,0.03527832,-0.021194458,0.021087646,-0.007255554,0.022125244,0.01171875,-0.0039253235,-0.04650879,0.033325195,-0.005973816,0.021011353,-0.041046143,0.008178711,-0.012519836,0.007801056,0.02986145,-0.027404785,0.016464233,-0.012519836,-0.032043457,-0.061798096,0.031311035,-0.0019760132,0.031066895,0.011779785,0.003288269,0.028137207,-0.002658844,0.014213562,0.00868988,-0.0071029663,-0.030685425,-0.026763916,-0.045440674,-0.036071777,-0.01159668,-0.03805542,0.032104492,-0.012565613,0.0053634644,0.00033950806,-0.026672363,0.022064209,0.04510498,-0.0076293945,0.017425537,0.00008749962,0.019500732,0.03302002,0.0022182465,-0.058288574,0.024093628,-0.005027771,0.010375977,-0.009773254,0.03643799,0.03527832,-0.008003235,0.01802063,0.00016081333,-0.026809692,-0.02810669,0.003829956,-0.0015649796,-0.0057525635,0.0072364807,-0.038879395,0.0056877136,0.028015137,-0.016662598,-0.015235901,0.0031795502,0.017822266,-0.028945923,0.022735596,0.025268555,0.041992188,-0.026397705,0.0107421875,-0.0025024414,0.041046143,0.0048599243,-0.0007209778,0.008659363,0.029373169,-0.006515503,0.000667572,-0.0058021545,-0.016998291,0.011917114,-0.0029640198,0.0211792,0.02041626,0.019638062,-0.0085372925,-0.027191162,0.0013399124,-0.011512756,-0.01902771,0.040222168,0.019500732,-0.0019454956,0.0052108765,0.027023315,0.011634827,0.0068855286,0.007068634,0.01285553,0.045898438,-0.048095703,-0.002418518,0.004573822,0.03086853,0.030471802,-0.055664062,-0.0085372925,-0.0072364807,0.018966675,-0.011146545,-0.0340271,-0.02746582,-0.017440796,0.02810669,-0.011955261,0.011695862,0.03086853,0.0046463013,0.0033950806,0.03225708,0.015357971,0.011375427,-0.035858154,-0.058685303,-0.017028809,0.007827759,0.009094238,0.00032925606,-0.019958496,-0.013923645,-0.01020813,0.0029067993,-0.001627922,0.0011501312,-0.006500244,-0.002456665,0.047302246,0.0026474,0.015792847,-0.027160645,-0.029724121,0.01586914,0.015319824,0.033355713,-0.021224976,0.024169922,-0.013946533,0.015510559,-0.014671326,0.026260376,0.037384033,0.040924072,-0.0077056885,0.030471802,-0.029541016,0.05621338,-0.038116455,-0.005695343,0.0020713806,-0.036010742,-0.002149582,-0.046936035,-0.000852108,0.053344727,-0.03741455,-0.012062073,-0.025054932,-0.050109863,-0.005607605,-0.056762695,0.011734009,0.027374268,0.038482666,-0.0043525696,0.00072956085,0.005329132,0.023971558,-0.016952515,-0.018585205,0.0016183853,0.011955261,0.024490356,0.022003174,0.005821228,-0.021530151,-0.00069093704,-0.023620605,-0.058807373,-0.03970337,-0.0057640076,0.012336731,-0.018234253,0.00035071373,-0.014793396,-0.018341064,0.013938904,-0.02166748,0.0082092285,-0.0019044876,0.025848389,0.016418457,0.0038585663,-0.0143585205,0.010826111,-0.020843506,0.047729492,0.024841309,0.026153564,-0.02960205,-0.017105103,0.030822754,0.0047416687,-0.0011587143,-0.029418945,-0.028839111,-0.019851685,-0.05505371,-0.0071144104,-0.022567749,-0.003900528,0.0008225441,-0.0034923553,-0.036224365,-0.0054397583,-0.030426025,0.01612854,-0.0048332214,0.01727295,0.042144775,0.0132751465,0.013008118,-0.0070266724,-0.0072135925,-0.019348145,0.027938843,0.006828308,0.015296936,0.021820068,0.039916992,0.002981186,-0.0058288574,0.009399414,-0.013763428,0.029022217,-0.017471313,-0.013092041,-0.020187378,0.035491943,-0.007671356,-0.007396698,-0.07232666,0.006702423,0.053771973,-0.008087158,-0.042999268,0.006515503,-0.02571106,0.0072898865,0.03540039,-0.06762695,-0.0054740906,-0.005268097,0.024398804,-0.03161621,0.0033226013,0.002855301,0.017807007,-0.0059051514,-0.025436401,-0.0035190582,-0.012329102,0.016738892,-0.056732178,-0.016601562,-0.06781006,0.0024719238,-0.00894165,-0.015098572,0.0005245209,0.011985779,-0.016357422,-0.049926758,-0.014976501,0.053955078,0.012191772,0.04144287,-0.006931305,0.039154053,0.037597656,-0.0107421875,-0.016067505,0.018692017,-0.029754639,-0.0061531067,-0.04144287,0.020431519,0.014335632,-0.0022468567,0.0016555786,0.015129089,0.0126953125,-0.010307312,0.0069503784,0.010597229,0.00349617,0.0015544891,0.0138168335,-0.0015659332,-0.0020961761,0.029678345,-0.05316162,0.021942139,0.008155823,-0.0039596558,0.0357666,0.025482178,0.056671143,-0.032440186,-0.0011014938,0.013656616,0.00730896,0.05847168,-0.03036499,0.038726807,0.013656616,-0.0074501038,-0.02218628,-0.023468018,-0.025878906,-0.046325684,-0.039733887,0.010528564,0.0063285828,0.010871887,-0.008651733,0.00969696,0.008270264,0.008041382,-0.0011339188,-0.028030396,-0.013656616,-0.019332886,0.025390625,-0.00844574,0.0069503784,-0.021148682,0.023239136,0.050994873,0.031158447,-0.0002746582,-0.0026664734,0.01675415,0.025802612,0.0037002563,0.0074005127,0.026153564,0.020645142,0.01725769,0.02104187,0.009628296,-0.060150146,-0.016479492,-0.014213562,-0.00894165,0.013442993,-0.004016876,0.0033569336,-0.00061035156,0.008659363,0.0015382767,-0.028884888,0.005191803,0.0075302124,-0.032836914,-0.006450653,-0.001291275,0.008255005,-0.00434494,-0.012420654,0.00038456917,-0.01725769,0.034973145,-0.018295288,-0.021759033,0.024963379,0.025527954,0.033233643,-0.04815674,-0.008491516,-0.0054779053,-0.013397217,0.0014219284,-0.022750854,0.032165527,0.05029297,0.0040397644,0.016723633,-0.009399414,0.030288696,-0.0019454956,0.009002686,0.0037059784,0.03012085,-0.0010166168,0.020385742,-0.07720947,0.00440979,0.0031356812,0.008300781,-0.016174316,-0.01335144,-0.001461029,0.016860962,0.019088745,-0.01939392,0.040985107,-0.0025367737,0.022354126,-0.00029087067,-0.028060913,0.0062408447,-0.037139893,-0.019973755,0.016708374,-0.014213562,0.010848999,0.013809204,-0.018508911,0.0014038086,-0.012245178,-0.0011148453,0.019866943,0.011962891,-0.01638794,-0.028411865,-0.00025773048,-0.028366089,-0.04437256,-0.0017518997,0.017425537,0.032348633,0.0007791519,0.020980835,0.03213501,0.03086853,0.04473877,-0.060424805,-0.024658203,-0.0032787323,-0.01574707,0.014518738,-0.011680603,0.0423584,0.033569336,0.0044822693,0.053710938,0.026763916,0.01902771,0.01713562,0.03137207,-0.0121154785,0.00504303,-0.02911377,0.013328552,-0.025100708,0.051239014,-0.029403687,0.029159546,0.015670776,0.027145386,-0.010475159,0.03555298,0.054382324,0.015060425,0.008239746,0.012771606,-0.019348145,0.004825592,-0.021072388,-0.017745972,0.04864502,0.032684326,0.056640625,0.04144287,0.011184692,-0.014968872,0.0046310425,-0.02067566,-0.021652222,0.03970337,0.032165527,-0.01763916,0.0043792725,-0.018066406,0.01235199,-0.05596924,-0.015899658,0.030258179,-0.005256653,-0.0074539185,0.0062446594,-0.030380249,-0.01373291,0.02583313,-0.010437012,-0.004425049,-0.024749756,0.03164673,0.02848816,0.014274597,0.013771057,-0.010536194,0.024215698,-0.014122009,-0.0034599304,0.015052795,0.020217896,-0.0053710938,-0.0023078918,0.0046081543,0.008453369,0.028793335,0.028182983,-0.016571045,-0.009407043,0.0118255615,0.017532349,-0.0028018951,0.04824829,0.033691406,0.029205322,0.050964355,0.010948181,0.01701355,-0.027236938,0.024536133,-0.0067100525,0.00970459,0.0060768127,-0.002614975,0.009185791,0.008125305,0.037384033,-0.004020691,0.0042266846,0.015945435,0.008651733,-0.015991211,-0.008781433,-0.010437012,-0.010223389,-0.023101807,0.015960693,0.021499634,0.0058059692,0.023788452,0.026321411,0.039215088,-0.029937744,0.02204895,0.013702393,-0.019454956,-0.016601562,0.010551453,-0.036376953,0.011650085,-0.019104004,0.008895874,-0.039489746,-0.0017995834,0.035217285,-0.014968872,0.002670288,0.01411438,-0.0027580261,0.00025320053,0.027114868,0.028320312,-0.009811401,-0.020141602,-0.020187378,0.021865845,0.026535034,-0.0073509216,0.0072746277,-0.020614624,0.010856628,0.017211914,0.0074501038,-0.002937317,-0.024520874,-0.00093126297,-0.032409668,0.025619507,0.03579712,0.002653122,0.04663086,-0.010559082,-0.018615723,0.013031006,0.03363037,-0.0062294006,-0.016143799,0.002412796,0.006416321,-0.015945435,0.053253174,0.05697632,-0.007408142,0.026916504,0.0008211136,-0.022445679,-0.0008392334,-0.021453857,0.03668213,-0.018127441,-0.016571045,-0.0016098022,0.013000488,-0.01373291,-0.042877197,0.0029258728,-0.022598267,-0.03326416,-0.008995056,0.018707275,0.0124435425,0.031402588,0.038970947,0.016845703,-0.028808594,0.0491333,-0.013160706,0.025283813,0.0056915283,-0.011932373,0.048461914,-0.0030345917,0.034088135,0.008842468,0.018157959,-0.035827637,-0.002462387,0.002439499,0.016204834,0.003616333,0.014030457,0.009841919,0.04714966,0.009841919,0.015098572,0.017791748,-0.00090265274,0.006259918,0.010757446,-0.010848999,-0.005580902,-0.016937256,0.008392334,0.0357666,-0.037017822,0.0018501282,-0.008522034,-0.018341064,0.019042969,-0.0030441284,0.0027751923,-0.021820068,-0.031082153,-0.000102579594,-0.02229309,-0.010597229,0.0061302185,0.008460999,-0.046691895,-0.008323669,0.021499634,0.03302002,-0.0289917,0.009216309,0.049468994,0.03274536,-0.00019609928,0.041503906,-0.0031700134,0.04559326,0.0012331009,0.013679504,0.014945984,0.009521484,-0.016647339,0.010192871,0.014823914,-0.015449524,0.017913818,0.022018433,-0.011917114,0.018066406,-0.013771057,-0.0018568039,0.007106781,0.025482178,-0.008811951,-0.007484436,-0.017532349,-0.0070495605,0.011695862,0.014945984,0.011116028,-0.0033817291,0.019805908,-0.023284912,0.023269653,0.026626587,0.025222778,-0.061798096,0.017562866,0.021606445,0.018508911,-0.012641907,-0.0073432922,-0.0033187866,-0.043304443,0.011909485,0.014793396,-0.0005350113,0.004524231,-0.015213013,-0.02067566,0.020523071,0.0077171326,0.015457153,0.013046265,0.004219055,0.026809692,-0.009460449,-0.00932312,-0.008399963,0.00073480606,0.024612427,0.012313843,0.008583069,-0.038909912,0.020401001,-0.015014648,0.014709473,0.03137207,0.0028057098,0.008049011,-0.012214661,0.012680054,-0.0051345825,0.00504303,-0.004688263,-0.010131836,0.0041923523,0.022720337,0.047668457,-0.00033903122,-0.018096924,0.00434494,0.041259766,0.011505127,0.025009155,0.00016355515,0.036895752,0.039611816,-0.028533936,-0.016647339,0.016418457,-0.0037212372,-0.008583069,0.015029907,-0.025054932,-0.0013523102,0.030639648,0.004837036,-0.0104904175,-0.035095215,-0.012519836,-0.017410278,-0.016403198,0.022842407,-0.006198883,0.02116394,-0.022247314,-0.013946533,0.02645874,-0.03250122,-0.023910522,0.010620117,0.016952515,-0.0045394897,-0.07659912,0.021224976,-0.017242432,0.0061302185,-0.026626587,0.012367249,0.0006990433,0.008888245,0.006668091,-0.009979248,0.012397766,0.029953003,0.013664246,0.019058228,0.011039734,-0.009529114,-0.011268616,-0.014266968,-0.004737854,-0.025665283,0.0062294006,0.030288696,0.028015137,0.0017271042,-0.01272583,-0.0054092407,0.0024700165,-0.024932861,0.0042877197,-0.027664185,-0.033935547,0.008583069,0.026931763,-0.013290405,-0.00349617,0.040008545,-0.019958496,-0.032409668,0.029449463,0.037628174,0.009170532,0.024429321,-0.002122879,0.00007033348,-0.008079529,0.004852295,-0.020019531,0.017684937,0.0076522827,0.028289795,0.008560181,-0.008392334,0.017959595,-0.018356323,0.00020694733,0.020141602,0.023635864,-0.021438599,0.027526855,0.03161621,-0.0023498535,-0.0021076202,-0.005153656,0.022460938,0.031799316,0.0105896,0.010437012,0.008415222,0.0052490234,-0.025878906,0.006580353,0.023101807,-0.006046295,-0.039093018,-0.0033950806,-0.009239197,0.030334473,0.004886627,0.006252289,-0.011909485,0.019470215,-0.0068855286,-0.032470703,-0.0024051666,0.031585693,0.036956787,-0.011390686,-0.018173218,0.0025596619,0.011024475,-0.030731201,-0.008384705,-0.059692383,-0.0011043549,-0.0039901733,0.0079422,0.019485474,0.015357971,0.003293991,-0.0033340454,-0.011627197,-0.01272583,-0.021408081,0.010345459,-0.009880066,-0.0035305023,0.004699707,0.04324341,0.0049209595,0.011398315,0.006340027,-0.005531311,0.016433716,-0.012046814,0.027313232,-0.019119263,0.036743164,-0.012237549,-0.013885498,0.020950317,0.020980835,0.012397766,-0.033447266,-0.012565613,-0.007575989,0.0035095215,0.03640747,-0.015014648,-0.018997192,0.021514893,0.0007677078,-0.020523071,-0.015472412,-0.0031604767,0.025405884,-0.005092621,0.04559326,-0.021942139,-0.031433105,-0.014625549,0.004261017,-0.017471313,0.0020771027,0.00762558,0.008308411,-0.006752014,0.0029449463,-0.0018386841,-0.050476074,-0.004096985,0.0032634735,-0.030471802,-0.0023002625,0.018814087,0.010375977,0.040618896,0.016723633,0.031707764,0.030288696,0.028320312,0.016418457,-0.014297485,0.035827637,-0.008979797,-0.010673523,0.0034275055,0.005004883,-0.0054740906,0.010185242,0.001824379,-0.017623901,-0.03186035,0.019683838,0.0042304993,0.034606934,-0.004623413,0.0059928894,-0.026794434,-0.0069274902,-0.0151901245,0.004371643,-0.026062012,0.00730896,0.03326416,-0.0019016266,0.0049705505,-0.0057907104,0.003780365,0.024871826,0.047607422,0.0015335083,-0.04034424,-0.017807007,0.017440796,0.0032138824,0.00053834915,0.021377563,-0.0357666,0.012763977,0.016220093,-0.015991211,0.005256653,-0.010620117,0.025314331,-0.004306793,-0.026809692,-0.011070251,0.035461426,-0.018569946,-0.0075645447,-0.006790161,0.020721436,0.034301758,0.039367676,-0.00046372414,0.002090454,0.016845703,-0.023468018,0.06323242,-0.01512146,-0.002418518,-0.0027313232,0.013137817,-0.035583496,-0.003610611,-0.01348114,0.00085401535],"createdAt":"2026-04-18T18:57:18.264Z","updatedAt":"2026-04-23T20:33:02.704Z","lastSeenAt":"2026-04-23T20:33:02.704Z","tsv":"'/api':153 '/api/v1/tokens/usdt':192 '/docs':151 '/pricing':152 '/readme':155 '0.02':53,134 '000':55 '20':54 '6':61 'Base network API' 'USDT price data' 'USDT token info' 'accept':201 'access':40 'address':71 'ai/ml':106 'analyt':105 'api':73,102 'attach':83 'avail':182 'base':13,27,48,56,145 'base-network' 'behavior':189 'beyond':204 'broader':99 'caller':81 'chain':66 'challeng':207 'classif':110 'connect':161 'convers':127 'cost':52 'crawl':185 'crypto':1,15 'crypto token endpoint' 'crypto-data' 'data':3,17,37,104 'decim':62 'detail':168 'document':146,177 'embed':111 'endpoint':4,18,30,130,193 'estim':121 'exampl':181 'exchang':116 'extrem':148 'feed':115 'field':195 'financ':112 'flow':143 'follow':131 'gas':120 'generat':128 'geocod':125 'header':88 'host':97 'infer':107 'infrastructur':123 'key':74 'limit':76 'lowpaymentfee.com':32 'materi':186 'metadata':208 'model':139 'network':14,28,49 'no-api-key' 'on-chain':64 'openapi':172 'page':156 'paramet':199 'payabl':6,20 'payment':44,87,93,142 'per':8,22,136 'per-request':7,21,135 'per-request-pricing' 'price':114,138 'prompt':163 'proof':94 'protocol':45 'provid':33,96 'quot':119 'rate':75,117 'relat':36 'render':158 'request':9,23,51,137 'request/response':175 'requir':80 'return':197 'schema':176 'sentiment':108 'settl':63 'simpli':82 'span':103 'spars':149 'spec':173 'specif':188 'specifi':69 'stablecoin data' 'subscript':78 'suit':100 'summar':109 'technic':167 'tether data API' 'token':2,16,35,118 'token-data' 'token-rel':34 'unit':57 'unknown':203 'usag':180 'usdc':59 'usdc-settlement' 'usdt':5,19,39 'util':124 'valid':91,126 'via':10,24,41 'wallet':70,162 'web3':113 'x':86 'x-payment':85 'x402':11,25,43,92,141,206 'x402 paid API' 'x402-payment'","prices":[{"id":"77ad8b5f-e71a-4bfa-a324-2892f7c430d4","listingId":"4510fda9-c20d-4b84-a000-37fffbe16a04","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/tokens/USDT","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:18.264Z"}],"sources":[{"listingId":"4510fda9-c20d-4b84-a000-37fffbe16a04","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/USDT","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:18.264Z","lastSeenAt":"2026-04-23T20:33:02.704Z"}],"details":{"listingId":"4510fda9-c20d-4b84-a000-37fffbe16a04","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/USDT \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","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, accepting USDC on Base network with maxAmountRequired of 20000 base units.","source_url":"https://lowpaymentfee.com/api/v1/tokens/USDT"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset address used is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.","source_url":"https://lowpaymentfee.com/api/v1/tokens/USDT"}],"useCases":["Fetching USDT token data or metadata on demand with per-call crypto payment","Agent-driven workflows that need token information without managing API keys","Programmatic access to token data settled via on-chain micropayments"],"bestFor":["Developers or agents wanting keyless, pay-per-call token data","x402-compatible agent wallets on the Base network","Low-volume or sporadic queries where subscription pricing is wasteful"],"notFor":["High-volume production use cases requiring documented SLAs and schemas","Users who need detailed API documentation or client libraries before integrating","Non-crypto users who cannot settle payments on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:47.214Z"},"updatedAt":"2026-04-23T20:33:02.704Z"}}