{"id":"21411cac-5f36-471d-bc58-7d16e37a4b7e","shortId":"eLgEZy","kind":"x402","title":"Pay-per-call API platform on Base network via x402 — $0.02/request in USDC.","tagline":"Pay-per-call API platform on Base network via x402 — $0.02/request in USDC.","description":"lowpaymentfee.com is a pay-per-request API platform that uses the x402 protocol to accept USDC payments on the Base network. The specific endpoint `/api/v1/transfers/92` is listed as \"Premium API Access\" and costs $0.02 per call (20,000 base units of USDC with 6 decimals). No API keys, rate limits, or upfront commitments are required — each request is individually settled on-chain.\n\nThe broader platform advertises multiple API categories including 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.\n\nHowever, the specific functionality of the `/api/v1/transfers/92` endpoint (labeled \"Premium API Access\") is not documented in the crawled material. The docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no further content. Without documentation or an OpenAPI schema, the actual input/output behavior of this endpoint is unknown. The endpoint is confirmed live — it returns a valid x402 402 challenge — but what it returns after payment is unclear.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","no-api-key","post-method"],"categories":["api-platform","crypto"],"synonyms":["lowpaymentfee","low payment fee API","x402 API","USDC pay-per-call","Base network API","micropayment API","premium API access"],"warnings":["The specific functionality of /api/v1/transfers/92 ('Premium API Access') is not documented anywhere in the crawled material.","All documentation pages (docs, pricing, API, README) returned only 'Connect wallet' with no useful content.","No OpenAPI schema or response examples are available — the actual output after payment is unknown.","This endpoint path (/api/v1/transfers/92) does not appear in the site's listed API catalog, making its purpose unclear."],"endpointUrl":"https://lowpaymentfee.com/api/v1/transfers/92","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/transfers/92","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 x402 402 challenge, but there is no documentation, no OpenAPI schema, no example requests or responses, and the actual functionality behind 'Premium API Access' is completely undocumented. The docs/pricing/API pages are all empty beyond a wallet connect prompt.","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":"2026-04-19T14:18:49.965Z","embedding":[-0.022094727,-0.031402588,0.039367676,0.02670288,0.015853882,-0.022659302,-0.022201538,0.02998352,0.07745361,-0.06549072,0.028686523,-0.034118652,-0.0357666,-0.029052734,-0.029876709,0.0043678284,0.0029354095,0.0009756088,-0.046722412,0.031677246,0.032958984,-0.028945923,-0.038970947,0.02494812,0.0127334595,-0.031097412,-0.0037574768,-0.018096924,-0.016937256,-0.03024292,0.03591919,-0.033172607,-0.0041923523,0.0079193115,-0.01335907,-0.013633728,0.004070282,0.039642334,0.024673462,-0.008094788,-0.004085541,-0.054534912,0.0007443428,-0.024490356,-0.051757812,-0.002456665,-0.0074386597,-0.028167725,0.0060806274,-0.008171082,-0.025268555,-0.008140564,-0.015197754,0.0073776245,0.01398468,0.012237549,0.0005083084,-0.003200531,0.008171082,0.020385742,-0.024505615,-0.058563232,-0.010932922,-0.015182495,0.00944519,0.057159424,-0.018127441,0.047851562,0.0069007874,0.061401367,0.043884277,0.0541687,0.029342651,0.011383057,-0.0037193298,0.004322052,-0.017089844,0.05529785,-0.012573242,-0.023330688,-0.006778717,-0.009223938,-0.055877686,0.008171082,-0.0107803345,-0.018463135,-0.018096924,0.018417358,-0.0011587143,0.02746582,-0.07611084,0.0012769699,-0.00084638596,0.00894165,0.005115509,-0.010971069,-0.006362915,0.027679443,-0.00856781,0.016571045,-0.008094788,-0.043548584,0.023727417,0.014823914,0.031341553,0.038482666,0.016571045,0.020080566,0.004749298,-0.013595581,-0.022766113,0.013374329,-0.019561768,-0.0023097992,0.019485474,-0.001499176,-0.0067443848,0.014152527,-0.0362854,0.024093628,-0.061828613,0.032470703,0.004764557,-0.00091409683,-0.00040745735,-0.041625977,-0.007965088,0.02571106,-0.02659607,-0.00995636,0.027191162,0.006149292,0.03213501,-0.014968872,-0.03466797,0.0126571655,-0.023223877,-0.01348114,-0.0463562,-0.037628174,0.03881836,-0.026870728,0.016555786,0.041900635,-0.10345459,-0.0009522438,-0.03656006,0.021957397,-0.03250122,-0.0021533966,-0.0049362183,0.024353027,-0.01109314,-0.02331543,-0.026046753,-0.023101807,0.012840271,0.028900146,-0.013618469,0.049194336,-0.022705078,0.02796936,0.009803772,0.0053215027,0.020248413,0.021713257,-0.005756378,-0.082336426,-0.09118652,-0.016860962,-0.008056641,-0.014472961,-0.03994751,0.008468628,-0.011077881,-0.074279785,-0.019485474,-0.03463745,0.0016441345,-0.03488159,0.001414299,-0.028839111,0.022628784,-0.005554199,-0.0680542,-0.023468018,-0.0236969,0.053863525,0.026977539,0.02734375,0.02949524,-0.016784668,0.060180664,0.015434265,-0.026138306,-0.014694214,0.024841309,-0.021743774,0.016525269,-0.013931274,0.02204895,-0.035064697,0.033447266,0.068847656,0.0029411316,-0.027114868,-0.012802124,-0.05682373,-0.035369873,-0.022460938,0.018218994,0.014755249,-0.008628845,0.04562378,-0.035186768,-0.029464722,0.0048599243,0.022460938,0.016433716,0.05706787,0.014305115,-0.022094727,0.02243042,0.0154800415,-0.055511475,0.033599854,0.028915405,0.017196655,-0.0362854,-0.027908325,0.035247803,0.042144775,-0.03010559,0.0053749084,-0.0011959076,0.028045654,-0.013519287,0.00617218,0.010757446,-0.013519287,-0.022903442,-0.029022217,-0.027297974,0.030944824,0.005332947,-0.030288696,-0.026519775,-0.080322266,0.059906006,0.03717041,0.038482666,0.0017023087,0.008384705,-0.012748718,-0.013839722,-0.06311035,0.056854248,0.06903076,-0.0045280457,-0.013839722,0.022964478,-0.018997192,-0.030059814,0.0057144165,-0.0039901733,-0.04248047,-0.019180298,0.01890564,-0.048919678,0.017333984,0.0118255615,0.02798462,0.046783447,-0.0030651093,-0.054748535,-0.025375366,-0.009536743,0.004573822,-0.026123047,0.0039634705,-0.012214661,0.008049011,0.010543823,0.007282257,0.015434265,0.0013122559,-0.005680084,0.011306763,0.0042877197,-0.025222778,-0.038970947,0.006538391,0.005947113,-0.051849365,0.0019798279,-0.008598328,0.07287598,-0.05343628,0.03744507,-0.012924194,0.009933472,0.048187256,0.0008506775,-0.04284668,0.017227173,0.026794434,0.011398315,0.047058105,0.011566162,-0.030944824,-0.017654419,0.07489014,-0.016784668,-0.013092041,0.013954163,0.02381897,0.03491211,0.0048294067,-0.061553955,-0.030014038,0.00011307001,-0.05102539,0.025863647,-0.021194458,0.032684326,-0.0155181885,0.0048446655,-0.02432251,0.0032024384,-0.02746582,0.012916565,-0.0154800415,0.013671875,-0.028198242,-0.014434814,0.026062012,-0.0021648407,-0.014434814,0.006893158,0.034484863,0.03125,-0.007080078,-0.028274536,-0.02293396,-0.0044288635,0.0021095276,0.028945923,0.010871887,0.025375366,0.05682373,-0.034088135,0.012016296,0.027008057,0.03253174,0.023651123,-0.009460449,0.0069847107,-0.07269287,-0.05758667,-0.02708435,-0.03591919,0.029083252,0.010063171,-0.0015478134,0.050567627,0.011924744,-0.018081665,-0.036010742,0.02003479,-0.05682373,-0.0012102127,0.044067383,-0.012634277,-0.017822266,0.0007100105,-0.0018091202,0.00466156,0.03036499,0.008300781,0.035369873,0.081604004,0.04510498,-0.0066566467,0.029006958,-0.0058059692,0.017318726,0.012420654,-0.03186035,-0.02293396,-0.009674072,0.03427124,-0.023452759,-0.022506714,-0.06878662,0.039916992,0.04058838,0.092041016,0.021087646,0.0057678223,0.0256958,-0.005634308,0.0110321045,-0.03704834,-0.01586914,-0.024658203,-0.045013428,0.027450562,-0.006603241,-0.004184723,-0.014587402,0.04534912,0.0014266968,0.02545166,-0.032348633,0.040252686,-0.011985779,-0.012207031,0.023147583,0.0077819824,0.04660034,0.06512451,-0.047302246,0.024154663,0.019210815,-0.023025513,-0.00497818,0.03491211,-0.016723633,-0.011779785,-0.062347412,-0.027038574,-0.01411438,-0.0057792664,-0.048187256,0.01626587,0.020828247,0.022399902,0.01626587,-0.0067977905,-0.022155762,-0.006713867,-0.014213562,-0.057281494,-0.0017690659,-0.026473999,0.004535675,0.04916382,-0.026107788,-0.0048179626,0.009063721,-0.012237549,-0.014511108,0.006088257,0.023117065,-0.00680542,-0.038482666,0.026641846,0.014152527,0.010223389,0.013931274,0.021636963,0.020553589,0.0309906,0.041503906,0.028060913,-0.016540527,-0.066711426,0.013954163,-0.04763794,-0.00003606081,0.018341064,-0.022827148,0.00011277199,-0.0149002075,-0.02619934,-0.023330688,0.016235352,-0.031951904,0.0046806335,0.01927185,-0.009780884,-0.023773193,-0.05215454,-0.026382446,0.004306793,0.053253174,0.022857666,0.019073486,-0.07513428,-0.01612854,0.04147339,0.013031006,0.025665283,-0.014175415,-0.007522583,-0.025054932,-0.037963867,-0.018218994,-0.025543213,0.0309906,-0.002199173,-0.0028305054,0.019927979,0.0064735413,0.021057129,-0.00041294098,0.022140503,0.026626587,-0.036102295,-0.0096206665,-0.003780365,0.03338623,0.0104522705,-0.01826477,-0.049346924,0.041503906,0.020095825,0.035736084,-0.04916382,-0.0036888123,-0.01651001,0.008201599,0.014175415,-0.013015747,-0.0062446594,-0.00434494,-0.041778564,-0.060791016,0.047088623,-0.022735596,0.028411865,0.021057129,0.0149383545,0.022399902,-0.0069389343,-0.016067505,0.013412476,-0.022567749,-0.0069122314,-0.011474609,-0.033172607,-0.022720337,-0.015083313,-0.015029907,0.020431519,-0.022460938,0.02708435,0.004917145,-0.01499176,0.022705078,-0.0043754578,0.00043845177,0.015548706,0.00674057,0.02696228,0.037628174,0.012237549,-0.044006348,0.012741089,-0.0051994324,0.0042915344,-0.0026569366,0.032684326,0.025436401,-0.0062065125,0.0014305115,-0.015586853,-0.012077332,-0.017105103,-0.0067443848,0.013214111,0.017959595,-0.009033203,-0.03729248,0.010925293,0.014457703,-0.027755737,-0.02796936,0.020889282,0.018676758,-0.037994385,0.019058228,0.0259552,0.047790527,-0.021194458,0.0025577545,0.0034217834,0.024871826,0.025543213,0.01184082,-0.014877319,0.0154953,-0.013580322,0.018737793,-0.0071640015,-0.0118255615,0.029754639,0.009346008,0.022399902,0.028060913,0.008995056,-0.026977539,-0.04421997,0.007385254,-0.007965088,-0.019744873,0.026855469,0.012184143,0.024154663,-0.019699097,0.017990112,0.01247406,-0.025344849,-0.021224976,-0.009063721,0.044677734,-0.028427124,-0.010017395,0.01600647,0.015670776,0.026290894,-0.0519104,-0.002204895,-0.0030136108,0.016708374,-0.022903442,-0.044952393,-0.036468506,0.008544922,0.025894165,0.010124207,0.02230835,0.03253174,-0.004890442,0.00818634,0.03744507,0.0013227463,-0.014541626,-0.017745972,-0.037322998,-0.026748657,-0.005168915,-0.003042221,-0.036743164,0.008468628,-0.008468628,-0.031921387,0.004501343,-0.013153076,0.00095558167,-0.014457703,0.0060691833,0.032196045,0.0064353943,0.020004272,-0.00982666,-0.042022705,0.0065689087,-0.0004696846,0.015945435,-0.052368164,0.011734009,-0.018920898,0.006462097,0.003753662,0.01033783,0.02017212,0.025344849,0.009590149,0.027389526,-0.04748535,0.04373169,-0.03591919,0.006275177,0.0019292831,-0.044952393,-0.0070877075,-0.016494751,-0.018569946,0.03363037,-0.03149414,-0.009490967,-0.022476196,-0.030426025,-0.013671875,-0.052124023,0.019729614,0.029434204,0.03302002,-0.02130127,-0.0021877289,0.0047912598,0.00035500526,-0.019332886,0.007736206,-0.021118164,0.019973755,0.030654907,0.00038337708,-0.03930664,-0.024459839,-0.023849487,-0.0138168335,-0.045684814,-0.046325684,-0.018569946,0.005153656,-0.015625,-0.011131287,-0.024810791,-0.023132324,0.0055160522,-0.04272461,0.0025749207,0.006965637,0.022506714,-0.008651733,-0.026306152,0.0038585663,0.008308411,-0.01259613,0.042877197,0.008407593,-0.0037937164,-0.04373169,0.011367798,0.012138367,0.02798462,-0.003227234,-0.020477295,-0.014923096,-0.008140564,-0.060272217,-0.012779236,-0.0015563965,-0.015975952,-0.0064888,-0.0048103333,-0.052764893,-0.004837036,-0.016616821,0.0058555603,0.01676941,0.009819031,0.010131836,-0.004421234,0.018722534,0.0017700195,-0.012611389,-0.022232056,0.014190674,0.0104904175,0.0017166138,0.0231781,0.053131104,0.013580322,-0.017456055,0.0051651,-0.0035114288,0.014541626,-0.027938843,0.007896423,-0.011070251,0.014541626,-0.010108948,-0.015991211,-0.035186768,-0.007675171,0.08746338,-0.0036411285,-0.01197052,-0.013114929,-0.020889282,0.018096924,0.026641846,-0.03643799,-0.0088272095,-0.029724121,0.025360107,-0.024871826,0.015304565,0.012489319,0.01260376,-0.021530151,-0.05722046,-0.016326904,-0.009651184,-0.0062179565,-0.05633545,-0.021133423,-0.064941406,-0.0033168793,-0.0023288727,-0.026397705,0.010719299,0.012336731,-0.015434265,-0.08068848,-0.0008234978,0.052734375,0.01576233,0.032440186,-0.0158844,0.019821167,0.028579712,-0.035736084,-0.0059776306,0.026397705,-0.019577026,-0.024093628,-0.01966858,0.020812988,-0.0076522827,-0.02279663,0.019836426,0.0149002075,0.018585205,-0.015388489,0.00970459,-0.011177063,0.024841309,-0.017791748,0.021209717,-0.014770508,-0.01424408,0.034942627,-0.043792725,0.02319336,0.015289307,-0.003408432,-0.00040078163,0.0309906,0.028167725,-0.039916992,-0.019760132,0.009361267,0.008560181,0.037475586,-0.022964478,0.045837402,0.0236969,-0.020690918,0.022064209,-0.008407593,-0.024887085,-0.024536133,-0.020462036,0.023971558,-0.005115509,0.021469116,-0.020050049,0.0025100708,0.017074585,0.0073776245,0.013374329,-0.011314392,-0.013267517,-0.014884949,-0.0030975342,0.0057907104,0.0075149536,-0.009132385,0.03086853,0.022857666,0.043304443,0.01864624,-0.01399231,0.00067043304,0.02998352,-0.010391235,0.00223732,0.021575928,0.00051116943,0.023223877,0.018356323,0.022323608,-0.045654297,-0.01838684,-0.0073280334,-0.023483276,-0.0011510849,-0.0049362183,-0.0107040405,-0.016098022,0.0070495605,-0.006088257,-0.027130127,0.0026168823,-0.027893066,-0.022247314,-0.004146576,-0.026473999,0.021469116,0.004486084,0.007843018,-0.0012588501,-0.002822876,0.034301758,-0.002691269,-0.012573242,0.014503479,0.029846191,0.02519226,-0.03286743,-0.006752014,-0.013191223,-0.01033783,-0.003698349,-0.030441284,0.005584717,0.04699707,-0.01373291,-0.0025234222,0.00049829483,0.026229858,-0.0057868958,0.0063934326,-0.015777588,0.022445679,-0.012207031,0.039215088,-0.04345703,0.02609253,0.007911682,0.005542755,-0.0064086914,-0.011444092,-0.034484863,0.018753052,0.010124207,-0.013908386,0.051330566,0.00630188,0.017868042,-0.019226074,-0.015914917,0.010749817,-0.014022827,-0.013557434,0.032104492,-0.00554657,0.0045814514,0.009353638,-0.02861023,0.03741455,-0.030166626,0.015197754,-0.00187397,0.0034694672,-0.012062073,-0.028381348,-0.012023926,-0.010116577,-0.013748169,0.0064926147,-0.00010347366,0.05114746,0.02420044,0.03024292,0.05291748,0.013824463,-0.0064353943,-0.032318115,-0.026824951,0.01109314,-0.0234375,0.016204834,-0.018112183,0.060272217,0.04135132,0.00048708916,0.037628174,0.034088135,0.030288696,0.011909485,0.010810852,-0.020996094,0.01737976,-0.00086402893,0.03338623,-0.005191803,0.035308838,-0.02053833,0.027267456,0.0105896,0.029006958,-0.029846191,0.028945923,0.076171875,0.015350342,-0.008003235,0.03793335,-0.010223389,-0.010185242,-0.01109314,-0.030014038,0.06100464,-0.0006451607,0.055633545,0.051116943,0.017196655,-0.0009889603,0.022003174,-0.017028809,-0.017456055,0.06915283,0.027908325,-0.019317627,-0.0067253113,-0.0063972473,0.013084412,-0.041809082,-0.04119873,0.02180481,-0.016418457,0.012390137,-0.0023097992,-0.005378723,-0.01335144,0.027908325,0.018859863,0.017562866,-0.018951416,0.028167725,0.04135132,0.00086164474,0.027450562,-0.0070228577,0.026397705,-0.02192688,-0.028640747,0.018661499,0.026641846,-0.00079107285,-0.02017212,0.03125,0.0077934265,0.04147339,0.045196533,-0.016342163,0.007347107,0.036193848,0.008010864,-0.0158844,0.05935669,0.04663086,0.017623901,0.031829834,0.027389526,0.022918701,-0.04046631,0.027755737,-0.0059776306,0.0069389343,-0.0013151169,-0.009300232,0.000027775764,-0.019439697,0.0071983337,0.010055542,-0.015625,0.029678345,0.033203125,-0.0072288513,-0.0011892319,-0.005218506,0.014213562,-0.016326904,0.0010375977,0.010803223,-0.016357422,0.04171753,0.0077171326,0.028579712,-0.013725281,0.014625549,0.0013256073,-0.016281128,-0.0023517609,0.026473999,-0.03062439,0.008811951,-0.006374359,0.016342163,-0.056640625,0.00749588,0.024353027,-0.02017212,0.028839111,0.007637024,-0.006175995,-0.0087890625,0.027832031,0.01576233,-0.00026273727,-0.011146545,-0.015235901,0.037353516,0.04977417,0.0027561188,0.0043029785,-0.023101807,-0.0026168823,0.009567261,-0.007904053,-0.00086927414,-0.009407043,-0.018371582,-0.023147583,0.022857666,0.036956787,0.022720337,0.054840088,-0.031677246,-0.008514404,0.007926941,0.03326416,0.0037841797,-0.0040626526,0.0021152496,0.013748169,-0.016296387,0.048339844,0.037109375,0.009284973,0.038238525,-0.011146545,-0.019683838,0.0041656494,-0.011436462,0.025619507,-0.016601562,0.0040359497,0.0015621185,0.030761719,-0.013435364,-0.03918457,0.018600464,-0.017105103,-0.020263672,-0.021026611,0.0121154785,0.008033752,0.02166748,0.035064697,0.019882202,-0.024475098,0.061920166,-0.00982666,0.054016113,-0.0075683594,-0.009254456,0.04949951,0.011413574,0.03314209,0.016937256,0.014328003,-0.028457642,0.024887085,0.038726807,0.016433716,0.017318726,0.0073661804,-0.013206482,0.038635254,0.0022125244,0.03112793,-0.016738892,-0.0026741028,0.009849548,-0.0018024445,-0.0075798035,0.001786232,-0.0093688965,0.009407043,0.052734375,-0.029083252,-0.01386261,-0.02418518,-0.009780884,0.020004272,-0.021011353,0.0048599243,-0.0012674332,-0.019515991,0.010879517,-0.025787354,-0.02734375,0.0012512207,0.026672363,-0.040863037,-0.020187378,-0.0040130615,0.017623901,-0.027648926,0.026641846,0.022354126,0.0028495789,0.0038375854,0.04525757,-0.0045661926,0.037872314,-0.008285522,0.027679443,0.027191162,-0.0010719299,-0.028823853,-0.0055389404,0.0055389404,-0.022872925,0.0065841675,0.03604126,-0.011123657,0.004878998,-0.0093688965,-0.008865356,-0.0016784668,0.01322937,-0.007522583,0.008811951,-0.017974854,-0.013908386,-0.004917145,0.008743286,-0.0027446747,0.00076055527,-0.009231567,-0.020019531,0.01259613,0.028823853,0.010147095,-0.039489746,-0.015106201,0.011528015,0.015701294,-0.027648926,-0.023895264,-0.004497528,-0.035186768,0.012680054,0.006706238,0.021865845,0.019302368,-0.021743774,0.00056505203,0.022720337,0.02255249,0.019973755,0.0023975372,-0.0025100708,0.02381897,0.00056123734,-0.0021972656,-0.00011771917,-0.0135650635,0.010543823,0.025863647,-0.004333496,-0.027816772,0.019317627,-0.007896423,0.017059326,0.0048675537,-0.016693115,0.013656616,-0.007419586,0.002576828,0.0058021545,0.01084137,-0.0149002075,-0.017166138,-0.015731812,0.03225708,0.061157227,-0.015144348,-0.0030117035,0.025100708,0.020202637,0.016235352,0.031921387,0.0038375854,0.045898438,0.026794434,-0.013130188,-0.02079773,0.028503418,-0.015029907,-0.01687622,0.009216309,-0.0082473755,-0.013214111,0.024749756,0.013557434,0.0023956299,-0.022232056,-0.02053833,-0.0134887695,-0.0058555603,0.011932373,-0.023590088,0.013198853,-0.027267456,-0.010169983,0.009109497,-0.03125,-0.046173096,-0.018676758,-0.0045433044,-0.008262634,-0.04876709,0.009796143,-0.035247803,0.0014133453,-0.03555298,0.001209259,-0.013320923,0.016494751,-0.024780273,-0.0019388199,0.012634277,0.031677246,0.02154541,0.011955261,0.024383545,-0.028305054,-0.02998352,-0.022628784,0.008514404,-0.008453369,0.01033783,0.010139465,0.034454346,0.027191162,-0.007545471,-0.0048713684,-0.005607605,-0.0064353943,-0.020462036,-0.020721436,-0.02998352,0.024963379,0.013916016,-0.019012451,-0.020431519,0.051483154,-0.022094727,-0.013084412,0.033966064,0.040802002,0.00617218,0.025390625,-0.02557373,-0.003873825,-0.02293396,-0.0014772415,-0.0126571655,0.008628845,-0.000166893,0.0048103333,-0.009315491,-0.0035476685,0.023147583,-0.017593384,-0.008430481,0.028533936,0.008323669,-0.009765625,0.033111572,0.011787415,0.0043754578,-0.017120361,-0.010643005,0.029724121,0.044036865,0.01361084,0.0062065125,-0.0022888184,0.0058517456,-0.013450623,0.0060806274,0.014678955,-0.02267456,-0.044006348,-0.023590088,-0.022125244,0.013336182,-0.005180359,0.011650085,-0.00724411,0.02394104,-0.011016846,-0.019821167,-0.03363037,0.03152466,0.00566864,-0.013801575,-0.01348114,0.0020751953,0.009025574,-0.032806396,0.003189087,-0.03994751,-0.034576416,-0.0040245056,-0.027862549,0.03353882,0.010681152,-0.0035705566,-0.0060653687,-0.008018494,-0.005317688,0.0055389404,0.03149414,-0.019058228,0.0037212372,0.03894043,0.015403748,-0.02571106,0.017440796,-0.018112183,-0.00712204,0.020355225,-0.0037155151,0.0037345886,-0.02708435,0.040496826,-0.012023926,0.003194809,0.031433105,-0.014579773,0.013183594,-0.037139893,0.0017595291,-0.0029582977,-0.0013504028,0.03010559,-0.026229858,-0.017822266,-0.00029993057,-0.015655518,-0.03744507,-0.0024147034,0.018325806,0.028579712,-0.01411438,0.04397583,-0.009147644,-0.00793457,0.017196655,0.007736206,-0.015777588,0.0017299652,0.034240723,-0.0017156601,-0.0003631115,-0.006504059,-0.017684937,-0.0309906,0.0009288788,0.012489319,-0.00554657,-0.010765076,0.027160645,0.020080566,0.045776367,0.0012931824,0.025817871,0.008934021,0.0069274902,0.026565552,0.008087158,0.051971436,0.0030727386,-0.019363403,0.005065918,0.007774353,-0.023712158,0.0012350082,-0.008483887,0.003944397,-0.03579712,0.022079468,-0.005874634,0.027267456,-0.01777649,0.009429932,-0.024505615,-0.0055656433,-0.040161133,-0.008720398,-0.02305603,0.0016202927,0.02166748,-0.00000846386,0.025772095,0.0037574768,-0.02671814,0.016296387,0.047027588,-0.008926392,-0.032562256,-0.0023918152,0.009292603,0.0063552856,0.011497498,0.011779785,-0.014503479,-0.019302368,0.0050735474,-0.015342712,0.008163452,0.0026931763,0.0118637085,0.0070610046,-0.008926392,-0.016540527,0.027938843,-0.010307312,0.002735138,0.014923096,0.009094238,0.041015625,0.028411865,-0.01146698,0.013412476,0.021774292,-0.035491943,0.062683105,-0.0031795502,0.027053833,-0.026397705,0.00881958,-0.03829956,-0.018127441,-0.015106201,0.016662598],"createdAt":"2026-04-18T19:28:02.664Z","updatedAt":"2026-04-22T21:31:47.382Z","lastSeenAt":"2026-04-22T21:31:47.382Z","tsv":"'/api/v1/transfers/92':56,150 '/request':13,28 '0.02':12,27,65,141 '000':69 '20':68 '402':205 '6':75 'Base network API' 'USDC pay-per-call' 'accept':46 'access':62,155 'actual':187 'advertis':98 'ai':110 'analysi':114 'analyt':104 'api':5,20,38,61,78,100,154,167 'base':8,23,51,70 'behavior':189 'broader':96 'call':4,19,67 'categori':101 'chain':94 'challeng':206 'classif':117 'commit':84 'confirm':198 'connect':173 'content':179 'convers':134 'cost':64 'crawl':161 'data':103,107 'decim':76 'doc':164 'document':158,181 'embed':118 'endpoint':55,137,151,192,196 'estim':128 'exchang':123 'export':108 'feed':122 'financ':119 'function':147 'gas':127 'generat':135 'geocod':132 'howev':144 'includ':102 'individu':90 'infrastructur':130 'input/output':188 'insight':109 'key':79 'label':152 'learn':112 'limit':81 'list':58 'live':199 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':31 'machin':111 'materi':162 'metric':105 'micropayment API' 'multipl':99 'network':9,24,52 'no-api-key' 'on-chain':92 'openapi':184 'page':168 'pay':2,17,35 'pay-per-cal':1,16 'pay-per-request':34 'payment':48,212 'per':3,18,36,66,142 'platform':6,21,39,97 'post-method' 'premium':60,153 'premium API access' 'price':121,139,165 'prompt':175 'protocol':44 'quot':126 'rate':80,124 'report':106 'request':37,88,143 'requir':86 'return':170,201,210 'schema':185 'sentiment':113 'settl':91 'specif':54,146 'summar':116 'text':115 'token':125 'unclear':214 'unit':71 'unknown':194 'upfront':83 'usdc':15,30,47,73 'usdc-base-network' 'use':41 'util':131 'valid':133,203 'via':10,25 'wallet':174 'web3':120 'without':180 'x402':11,26,43,204 'x402 API' 'x402-payment'","prices":[{"id":"78086722-3e10-44b6-97d3-5c17101a535f","listingId":"21411cac-5f36-471d-bc58-7d16e37a4b7e","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/transfers/92","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:02.664Z"}],"sources":[{"listingId":"21411cac-5f36-471d-bc58-7d16e37a4b7e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/transfers/92","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:02.664Z","lastSeenAt":"2026-04-22T21:31:47.382Z"}],"details":{"listingId":"21411cac-5f36-471d-bc58-7d16e37a4b7e","quickStartSnippet":"# The endpoint requires an X-PAYMENT header with a valid x402 payment proof.\n# Using curl (you need an x402-compatible client to generate the payment):\ncurl -X POST https://lowpaymentfee.com/api/v1/transfers/92 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/transfers/92"},{"claim":"All listed endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/transfers/92"}],"useCases":["Paying per-call for API access without needing API keys or subscriptions","Programmatic agent-driven API consumption settled on-chain via USDC on Base","Testing x402 protocol integrations with a low-cost endpoint"],"bestFor":["Developers exploring x402 pay-per-request patterns","AI agents needing keyless, on-demand API access","Users who want to avoid subscription commitments for occasional API calls"],"notFor":["Users who need detailed API documentation before purchasing","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":"2026-02-17T23:13:33.269Z"},"updatedAt":"2026-04-22T21:31:47.382Z"}}