{"id":"3ff7324c-5212-476b-b98f-6c1b81b6622a","shortId":"ks5mRt","kind":"x402","title":"x402-gated settings endpoint on a multi-API platform charging $0.02/request via USDC on Base.","tagline":"x402-gated settings endpoint on a multi-API platform charging $0.02/request via USDC on Base.","description":"The `/api/v1/settings` endpoint is part of lowpaymentfee.com, a platform that exposes a broad collection of x402-payable API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. This specific endpoint is labeled \"Premium API Access\" and is gated behind an x402 payment challenge requiring USDC on the Base network.\n\nThe platform advertises a flat $0.02 per request across all its endpoints, with no API keys, no rate limits, and no minimum commitments. Payment is handled via the x402 protocol's `exact` scheme, with the challenge specifying a `maxAmountRequired` of 20000 (in USDC's 6-decimal representation, equating to $0.02). The pay-to address is `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` and the USDC asset contract is `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base.\n\nThe exact purpose of the `/api/v1/settings` endpoint is unclear from available documentation. The crawled docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no usage examples available. The endpoint is confirmed live (returns 402 on POST), but what it actually returns after payment is unknown. The broader platform lists 16 endpoints across four categories, but none of them is `/api/v1/settings`, making this endpoint's function ambiguous — it may return platform configuration or account settings.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","http-post"],"categories":["infrastructure"],"synonyms":["lowpaymentfee","low payment fee API","x402 settings endpoint","premium API access","USDC gated API","Base network API","pay-per-call API"],"warnings":["No documentation available — docs, pricing, API, and README pages all return only 'Connect wallet' with no content.","The /api/v1/settings endpoint is not listed among the platform's 16 advertised APIs; its purpose is unknown.","No request or response schema is provided; integration requires blind experimentation after payment.","No OpenAPI spec or ai-plugin manifest found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/settings","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/settings","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is confirmed live via a 402 challenge, but there is zero documentation on what it does, no request/response schema, and the docs pages are empty. The endpoint name ('settings') does not appear in the platform's own listed APIs, making its purpose unclear. 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":"2026-04-18T19:38:24.373Z","embedding":[-0.03010559,-0.04421997,0.06561279,0.00073194504,-0.017608643,-0.015670776,0.0052261353,0.025512695,0.07684326,-0.046936035,0.030929565,-0.043914795,-0.04257202,-0.007881165,-0.001156807,-0.008216858,-0.009391785,0.035583496,-0.029556274,0.04434204,0.060821533,-0.038970947,-0.02268982,0.04748535,-0.015151978,-0.010757446,0.02230835,-0.0006184578,-0.013572693,-0.008087158,0.014656067,-0.01612854,-0.030258179,-0.02180481,-0.005756378,0.0009756088,0.017868042,0.038330078,0.027648926,0.00007981062,-0.006225586,-0.047546387,-0.016952515,-0.020309448,-0.02670288,0.010696411,0.018920898,-0.0074653625,-0.021591187,-0.005279541,-0.029449463,-0.0072631836,-0.030838013,0.00674057,0.028015137,-0.0030498505,0.004951477,-0.020645142,0.005634308,0.013442993,-0.010284424,-0.083496094,-0.011741638,-0.008049011,0.038269043,0.04586792,-0.008491516,0.046783447,-0.0075645447,0.052124023,0.0395813,0.058624268,0.018920898,-0.02772522,0.0012426376,-0.0007801056,0.011016846,0.076538086,-0.02432251,-0.023391724,-0.03326416,-0.023117065,-0.048828125,-0.000279665,-0.008178711,-0.035491943,-0.034454346,0.013916016,-0.026733398,0.050048828,-0.0602417,-0.020065308,-0.012649536,0.02268982,0.008361816,-0.037872314,-0.002418518,-0.007499695,0.004699707,0.024810791,0.028015137,-0.042053223,0.02746582,0.051818848,0.028564453,0.03756714,0.011924744,0.037353516,0.0209198,-0.031311035,-0.0368042,0.003293991,-0.015274048,0.005306244,-0.023025513,0.003227234,-0.029266357,0.013793945,-0.005279541,0.025115967,-0.03466797,0.0625,0.029449463,-0.014541626,0.013298035,-0.042510986,-0.040863037,0.0057296753,-0.041503906,-0.0003182888,0.0020523071,0.035888672,0.02986145,-0.049682617,-0.03390503,0.02268982,-0.048461914,-0.010810852,-0.036071777,-0.010040283,0.014503479,-0.010223389,0.008766174,0.033294678,-0.075683594,-0.0073623657,-0.01966858,0.015403748,-0.030838013,0.015914917,0.008583069,0.03643799,0.009727478,-0.017440796,-0.000767231,-0.028823853,0.0009021759,0.03225708,-0.0038108826,0.068115234,-0.02015686,0.010787964,0.051361084,-0.012306213,0.040008545,0.0340271,0.0062789917,-0.07507324,-0.083984375,-0.042022705,-0.012268066,0.011047363,-0.036376953,0.012451172,-0.006526947,-0.054504395,-0.012329102,-0.008735657,0.004535675,-0.02684021,-0.0052337646,-0.021850586,-0.026809692,0.0012140274,-0.047546387,-0.028198242,-0.04748535,0.036132812,0.027755737,-0.019042969,0.028320312,-0.010421753,0.051757812,-0.0045166016,-0.05166626,-0.026779175,-0.010650635,-0.0063171387,0.017364502,0.022888184,0.02720642,-0.041229248,0.049041748,0.0340271,-0.0059814453,-0.03643799,-0.012741089,-0.029785156,-0.047912598,-0.030654907,-0.009132385,-0.019363403,-0.012779236,0.03729248,-0.021606445,-0.0037403107,-0.0052108765,-0.0048065186,0.014762878,0.060424805,0.011604309,0.0007252693,0.004169464,0.032318115,-0.020736694,0.039520264,0.006641388,0.05029297,-0.023406982,-0.020645142,0.01637268,0.054656982,-0.040924072,-0.03677368,-0.008743286,0.016860962,-0.031066895,-0.0058937073,0.02520752,0.016662598,-0.02229309,-0.046569824,-0.037841797,0.03074646,0.019332886,-0.038360596,-0.023666382,-0.05114746,0.015556335,0.045684814,0.01033783,0.03265381,0.00920105,-0.049194336,-0.02067566,-0.060943604,0.033172607,0.06933594,-0.024765015,-0.02897644,0.028060913,-0.016159058,-0.025634766,-0.010063171,0.0028152466,-0.03842163,-0.028930664,0.018310547,-0.05090332,-0.019241333,0.035949707,0.019073486,0.0446167,-0.015129089,-0.05316162,-0.023040771,0.00617218,-0.009963989,-0.02809143,-0.001241684,-0.011520386,0.009925842,0.03656006,0.01171875,0.014877319,0.001868248,0.007827759,0.020126343,0.0013427734,-0.0009331703,-0.010467529,0.009918213,0.026397705,-0.06097412,0.03012085,0.01373291,0.066589355,-0.02293396,0.027832031,-0.015731812,0.03125,0.054504395,-0.032165527,-0.03062439,0.003982544,0.02357483,0.05178833,0.026229858,0.015808105,0.00005888939,-0.029296875,0.040222168,0.012420654,-0.019256592,-0.0013122559,0.019638062,0.04019165,0.020217896,-0.05606079,-0.031219482,-0.0054969788,-0.044403076,-0.003736496,-0.0063476562,0.06939697,-0.004928589,0.010887146,-0.0009965897,0.019622803,-0.047210693,0.008361816,-0.04135132,-0.011878967,0.0063552856,-0.014007568,0.017089844,0.015258789,0.013175964,-0.007205963,0.0064811707,0.03945923,-0.014450073,-0.034210205,-0.049621582,-0.032806396,0.021392822,-0.0005836487,0.0065307617,0.023147583,0.056427002,-0.028015137,-0.013549805,-0.0059547424,-0.0051994324,0.007499695,-0.006713867,-0.0070877075,-0.035308838,-0.06585693,-0.001619339,-0.030303955,0.014930725,0.009529114,-0.02053833,0.0413208,-0.0001167655,-0.03479004,-0.056854248,0.0140686035,-0.028121948,0.005619049,0.026367188,-0.0041160583,-0.03503418,0.009292603,-0.0043029785,0.016036987,0.029052734,0.025466919,0.01626587,0.06591797,0.02279663,0.0082473755,0.009117126,0.023361206,0.01776123,-0.02394104,-0.004764557,-0.018966675,-0.038146973,-0.01008606,-0.014724731,-0.012954712,-0.07165527,0.043701172,0.011642456,0.059143066,-0.0031032562,0.028457642,0.0069770813,0.007835388,-0.02041626,-0.05343628,-0.010391235,-0.041290283,-0.050933838,-0.0007662773,-0.012748718,0.0055770874,-0.042022705,0.034423828,0.010284424,0.02545166,-0.022125244,0.05392456,-0.01084137,-0.008110046,0.002527237,0.02684021,0.05493164,0.043395996,-0.039733887,0.01953125,0.016952515,-0.0026626587,-0.0071411133,0.033203125,-0.020492554,-0.013587952,-0.051361084,-0.016311646,0.0069770813,-0.01008606,-0.06488037,0.012535095,0.0075302124,0.006340027,-0.0055236816,-0.0062217712,-0.031707764,-0.013534546,-0.0070610046,-0.07489014,-0.009338379,-0.027801514,0.019317627,0.01486969,-0.012496948,-0.008132935,-0.013389587,-0.01335907,-0.02444458,0.03338623,0.012634277,0.012557983,-0.025863647,0.032165527,-0.0073547363,0.0030670166,-0.00048327446,0.015281677,0.030929565,0.036315918,0.017303467,0.015220642,-0.00064849854,-0.05822754,0.023910522,-0.072143555,0.021499634,-0.0052490234,-0.00018131733,0.019805908,-0.024124146,-0.010047913,-0.0028457642,0.023620605,-0.020614624,0.00869751,0.018127441,-0.02420044,-0.010025024,-0.03967285,-0.005531311,0.024230957,0.053710938,0.025024414,0.01939392,-0.06341553,-0.030914307,0.028121948,0.015556335,0.008079529,-0.014671326,-0.0036182404,-0.047851562,-0.01889038,-0.038879395,-0.046875,0.040802002,0.004310608,-0.01966858,0.0146484375,-0.038146973,0.025482178,0.008995056,-0.00522995,0.017684937,-0.040740967,-0.011497498,-0.029525757,0.0262146,-0.018493652,-0.030212402,-0.023330688,0.021011353,0.018432617,0.030853271,-0.018798828,-0.0018815994,0.0022907257,0.023666382,0.013221741,0.010215759,0.005001068,0.028305054,-0.03125,-0.07104492,0.006587982,-0.037597656,0.03668213,0.015182495,0.0073013306,0.03012085,0.014633179,0.010696411,0.02960205,-0.04916382,-0.0064964294,-0.03778076,-0.015060425,-0.03137207,-0.007030487,-0.0029735565,0.011054993,-0.030151367,0.047454834,0.00070858,-0.015899658,0.024551392,0.029129028,-0.012451172,0.025268555,0.010383606,0.0039596558,0.035369873,0.030227661,-0.03555298,0.018753052,0.0209198,0.00049591064,-0.01524353,0.04928589,0.02973938,-0.023345947,0.0014848709,-0.013969421,0.020751953,-0.025650024,-0.031829834,0.011306763,0.03488159,0.0039901733,-0.014305115,0.01586914,-0.006462097,-0.025680542,-0.027435303,0.033691406,0.03817749,-0.028503418,-0.0025367737,0.0027866364,0.045684814,-0.039886475,-0.018508911,-0.0035305023,0.04849243,0.029891968,0.020477295,0.009254456,0.006839752,-0.014877319,0.020233154,0.0033798218,0.00869751,0.0060653687,-0.0038967133,0.015548706,0.008293152,0.010604858,-0.026153564,-0.026306152,0.019134521,0.0060539246,0.00016200542,0.0067596436,0.0104599,0.04309082,-0.025466919,0.016921997,0.029785156,-0.012367249,0.003955841,0.02406311,0.02053833,-0.015457153,-0.025665283,0.040985107,-0.00082206726,0.01802063,-0.027145386,-0.003250122,0.0059928894,0.024642944,-0.019622803,-0.04534912,-0.024215698,0.0035171509,0.034423828,0.009513855,0.006412506,0.049072266,0.012878418,-0.006626129,-0.0006866455,0.0056877136,0.00075244904,-0.004020691,-0.034423828,-0.0017585754,-0.0124053955,-0.0065307617,-0.041137695,0.001039505,-0.018997192,-0.04034424,0.013015747,-0.00491333,0.009086609,-0.0030269623,-0.013572693,0.026367188,-0.006629944,0.0284729,-0.015113831,-0.027328491,-0.0052375793,-0.00078868866,0.042419434,-0.049621582,0.027694702,-0.029296875,0.017593384,-0.008110046,0.022903442,-0.0017786026,-0.015052795,0.008781433,0.032806396,-0.025878906,0.039031982,-0.010955811,0.019363403,0.029022217,-0.04446411,0.00674057,-0.021316528,-0.03173828,0.028121948,-0.015731812,-0.008033752,-0.032196045,-0.04763794,-0.00048828125,-0.041748047,0.04522705,0.024230957,0.035949707,-0.03012085,0.009254456,0.011802673,0.014724731,-0.008659363,0.00065135956,0.005580902,0.018112183,0.03378296,0.001502037,-0.02748108,-0.0066452026,-0.015144348,0.014083862,-0.04449463,-0.06329346,-0.0021877289,0.034729004,-0.0065078735,0.0045318604,-0.015991211,-0.03189087,-0.035095215,-0.04623413,0.020126343,0.016921997,0.02645874,0.002658844,-0.02809143,-0.0036354065,0.0132369995,-0.022247314,0.022994995,-0.0043258667,0.015640259,-0.04095459,0.023742676,0.019943237,0.018066406,-0.008903503,-0.028305054,-0.0014104843,-0.0158844,-0.031036377,0.01360321,0.01374054,0.008583069,0.0076942444,-0.023971558,-0.040618896,0.005138397,0.0061912537,0.006263733,-0.009521484,0.025878906,-0.0022392273,0.0073242188,0.0060310364,-0.004009247,-0.006996155,-0.041870117,0.027954102,0.0105896,-0.007827759,0.010421753,0.025787354,0.008026123,-0.02722168,0.0031814575,-0.018753052,0.03366089,-0.027114868,0.013168335,-0.013153076,0.0028762817,-0.014923096,-0.0049819946,-0.037322998,0.0021266937,0.04852295,-0.008049011,0.004878998,-0.015327454,-0.010009766,0.009902954,0.054351807,-0.052886963,-0.00013434887,-0.03768921,0.029006958,-0.0037956238,0.043518066,-0.0073928833,0.016342163,-0.033233643,-0.044403076,-0.00030851364,0.0317688,0.012306213,-0.07562256,0.0012750626,-0.047698975,-0.02029419,-0.011314392,-0.0050239563,0.007701874,0.009216309,-0.0079574585,-0.09490967,0.019577026,0.043029785,0.003944397,0.014923096,-0.013679504,-0.006137848,0.018325806,-0.025024414,-0.0021820068,0.035858154,-0.0041275024,0.0019254684,-0.0095825195,0.008163452,-0.02281189,-0.047546387,0.014099121,0.019714355,0.019805908,-0.028945923,0.006591797,-0.012832642,0.018722534,-0.014419556,0.012825012,0.0050697327,-0.030258179,0.043670654,-0.055603027,0.017745972,0.005847931,0.004875183,-0.014190674,0.024414062,0.04611206,-0.035217285,0.0019207001,0.037872314,0.015823364,0.042053223,-0.030380249,0.060058594,0.024871826,-0.0140686035,0.0035991669,-0.007030487,-0.01360321,-0.048736572,-0.011558533,0.026382446,0.03186035,-0.003320694,-0.030807495,0.006702423,0.027282715,0.005104065,-0.009254456,-0.020523071,-0.017318726,-0.0013923645,0.014282227,0.01638794,-0.00283432,-0.021774292,0.012512207,0.021118164,0.035827637,-0.018310547,-0.0004901886,0.00015580654,0.01612854,-0.0059547424,0.018249512,0.005519867,0.010925293,0.020843506,0.046691895,0.008514404,-0.025009155,-0.014045715,0.010047913,-0.00945282,0.014961243,-0.014709473,-0.002105713,0.010635376,-0.01600647,0.003162384,-0.053985596,-0.011123657,-0.04095459,-0.023147583,-0.021942139,-0.01826477,0.01914978,0.004840851,0.0007004738,0.015602112,-0.009284973,0.02609253,0.0013694763,-0.013282776,0.037017822,0.05606079,0.025741577,0.00868988,-0.010040283,0.016174316,0.0032081604,-0.010284424,-0.016296387,0.032440186,0.043182373,-0.017074585,0.012290955,-0.0047187805,0.039855957,0.006549835,0.012207031,-0.008834839,-0.0069847107,-0.02607727,0.056030273,-0.05065918,-0.0016584396,0.029190063,0.007472992,-0.012992859,0.010154724,-0.01576233,0.023925781,0.01927185,0.005756378,0.03262329,-0.007972717,0.027389526,-0.023956299,0.0047416687,-0.0037326813,-0.024276733,0.0025577545,0.04220581,0.010414124,0.009719849,0.0154418945,-0.025436401,-0.003900528,-0.02558899,0.011108398,0.007282257,-0.0053596497,-0.019546509,-0.023483276,0.0014877319,-0.011367798,-0.043395996,0.0018291473,0.00945282,0.02406311,0.036193848,0.0018062592,0.007896423,0.0078125,0.028427124,-0.030670166,-0.016815186,-0.017791748,-0.005722046,0.00844574,-0.029418945,0.031585693,0.039794922,-0.014434814,0.019500732,0.051330566,0.012168884,-0.0044784546,0.0027618408,-0.022872925,0.002401352,-0.014656067,0.020401001,0.010017395,0.05493164,-0.006916046,0.006931305,-0.0053482056,0.028640747,-0.011154175,0.020568848,0.08605957,0.031921387,-0.01826477,0.012756348,-0.00856781,-0.008651733,-0.008224487,-0.03643799,0.066223145,-0.0070228577,0.035369873,0.024414062,0.02720642,-0.030288696,0.009109497,-0.03643799,-0.020751953,0.03652954,0.020751953,-0.042236328,-0.0095825195,-0.010421753,-0.0047416687,-0.04006958,-0.0018987656,0.008804321,-0.02494812,-0.0026988983,-0.018508911,0.006095886,-0.023513794,0.011421204,-0.003730774,0.02645874,-0.008880615,0.012786865,0.025482178,0.010002136,0.010063171,0.006515503,0.0211792,-0.016708374,-0.013679504,0.0009717941,0.019760132,0.03074646,0.008094788,0.012275696,-0.002128601,0.05947876,0.02949524,-0.019302368,-0.015975952,0.019622803,0.012817383,0.0013484955,0.028945923,0.030700684,0.0018539429,0.016433716,0.04937744,0.011268616,-0.034606934,0.012718201,0.016479492,0.00907135,-0.0041656494,-0.013832092,-0.0043296814,-0.004501343,0.013755798,0.007575989,-0.0029525757,0.04168701,0.036834717,-0.0024356842,0.0024356842,-0.0011663437,0.0045661926,-0.00031852722,-0.01902771,-0.012397766,-0.0039711,0.020843506,0.024856567,0.015838623,-0.03604126,0.03152466,0.0095825195,-0.0016412735,0.00042128563,0.011802673,-0.05545044,0.0041656494,-0.010246277,0.0022201538,-0.05419922,0.017501831,0.01725769,-0.003458023,0.03479004,0.013290405,-0.016098022,-0.023117065,0.028640747,0.041381836,-0.004211426,-0.031036377,-0.017059326,0.023132324,0.027832031,-0.022491455,-0.0013113022,-0.018127441,0.008651733,0.021560669,0.025650024,0.0001436472,0.0065460205,-0.0059509277,-0.028900146,0.015151978,0.029708862,0.033294678,0.022537231,0.0069503784,0.00242424,-0.007080078,0.01979065,0.0073013306,-0.015686035,-0.016586304,0.0045547485,0.004875183,0.040771484,0.033416748,0.00012046099,0.014633179,-0.026306152,-0.013755798,0.004360199,-0.014434814,0.019897461,-0.020431519,0.024169922,-0.020004272,0.00969696,-0.024505615,-0.049072266,0.005832672,-0.025817871,0.006603241,-0.0093307495,0.022125244,0.008293152,0.017318726,0.03149414,0.034851074,-0.015037537,0.06915283,-0.009559631,0.041229248,-0.006893158,0.0059661865,0.028503418,0.03643799,0.011146545,0.008377075,0.0143585205,-0.02772522,0.015464783,0.03387451,0.008422852,0.01675415,-0.0039024353,-0.017425537,0.014328003,-0.012046814,0.012260437,-0.0065994263,-0.006313324,0.026657104,-0.024246216,-0.014305115,-0.0024032593,0.0070991516,0.012138367,0.036712646,-0.026443481,-0.02973938,-0.014060974,-0.015426636,0.030029297,-0.0034389496,0.025390625,0.018737793,-0.013427734,0.01637268,-0.00022184849,-0.014633179,0.008621216,0.039031982,-0.0501709,-0.020858765,0.005256653,0.0059432983,-0.011528015,0.029266357,0.023925781,-0.0010290146,0.027511597,0.053131104,-0.008804321,0.026062012,-0.04269409,0.019943237,0.025024414,0.004020691,-0.00774765,-0.00026583672,0.008407593,-0.017547607,0.010559082,0.02784729,-0.006866455,0.024932861,0.01586914,-0.028137207,-0.0052719116,0.0058174133,-0.013641357,0.017715454,-0.0004954338,-0.002243042,-0.014602661,0.011680603,0.017059326,0.00554657,-0.005554199,-0.008842468,-0.002822876,0.039886475,-0.023483276,-0.035064697,0.035186768,0.031021118,0.0067214966,-0.025360107,-0.00248909,0.017166138,-0.03591919,0.02293396,0.03527832,0.026306152,0.005168915,-0.022659302,0.0021858215,0.026565552,-0.00021123886,0.012321472,0.0063934326,0.005050659,0.019195557,-0.026748657,-0.0004017353,-0.010650635,0.0085372925,0.017120361,0.03717041,0.0155181885,-0.019226074,0.00774765,-0.01725769,-0.012702942,-0.0027160645,-0.011726379,0.043304443,-0.01260376,0.006755829,0.011878967,0.0009784698,-0.020065308,-0.060821533,-0.02684021,0.02154541,0.050567627,-0.010101318,0.0004413128,0.029418945,0.014160156,0.041412354,0.015052795,0.0047187805,0.030807495,0.012916565,0.010467529,-0.016921997,0.0049438477,-0.012969971,-0.021865845,0.020568848,-0.023666382,-0.028533936,0.01689148,-0.000036001205,-0.0040664673,-0.023666382,-0.026123047,-0.0049209595,-0.046081543,0.008422852,-0.008155823,0.023071289,-0.024978638,-0.017318726,0.0023994446,-0.00040078163,-0.009536743,-0.04095459,-0.012924194,-0.007537842,-0.04638672,0.0013494492,-0.025024414,0.010978699,-0.003534317,0.015075684,-0.009513855,0.018554688,0.012489319,0.00843811,0.022384644,0.018081665,0.0016384125,0.01348114,0.019317627,-0.01625061,-0.036315918,0.001159668,-0.006000519,-0.014892578,0.0015277863,-0.025390625,0.028396606,0.014411926,-0.013885498,-0.0049209595,0.008483887,-0.028305054,-0.017486572,-0.05606079,-0.0110321045,0.004295349,0.012840271,-0.016784668,-0.023925781,0.03778076,-0.03579712,-0.014633179,0.012229919,0.025253296,0.012275696,0.008979797,-0.005466461,0.0049934387,-0.038970947,-0.0154800415,-0.025787354,-0.0004184246,0.007335663,0.0115356445,-0.012664795,0.011482239,0.009887695,-0.005973816,-0.0005354881,0.034118652,0.010650635,-0.020431519,0.03933716,-0.011642456,0.010612488,-0.020523071,-0.008735657,0.012924194,0.048919678,0.003276825,0.00484848,0.0023899078,0.0065841675,0.0012197495,0.011520386,0.002122879,-0.024841309,-0.041137695,-0.0013885498,-0.0024967194,0.0011987686,0.0050315857,0.015914917,-0.016799927,-0.0077285767,-0.007446289,-0.03640747,-0.009300232,0.021316528,0.008529663,-0.004299164,0.010871887,0.0016260147,0.019180298,-0.018539429,-0.0073890686,-0.04800415,-0.011772156,-0.01473999,-0.022659302,0.0052337646,0.011306763,-0.022567749,-0.004863739,0.007888794,-0.020187378,-0.012481689,0.029052734,0.00068473816,-0.022872925,0.0070762634,0.016036987,-0.0011796951,0.008087158,-0.035888672,0.012878418,0.025787354,0.007865906,0.032684326,-0.022994995,0.043762207,0.030380249,-0.0046043396,0.037902832,-0.0037193298,0.036865234,-0.029006958,-0.010169983,-0.019134521,-0.00045108795,0.042236328,-0.030258179,-0.02470398,-0.006877899,-0.0082473755,-0.03933716,0.012924194,0.040802002,0.01158905,-0.015388489,0.039794922,-0.017547607,0.006313324,0.0014848709,0.010192871,0.007801056,-0.006290436,0.017440796,0.008171082,-0.015113831,0.0072250366,-0.002811432,-0.027282715,-0.021347046,-0.015274048,-0.018371582,-0.007511139,-0.0036354065,0.012145996,0.040130615,-0.029525757,0.0003862381,0.013290405,-0.013053894,0.0209198,-0.0077285767,0.0791626,0.010246277,-0.021530151,0.0021400452,0.013786316,0.002445221,0.003479004,-0.0014505386,0.0014381409,-0.04562378,0.009635925,-0.015151978,0.03149414,0.00945282,-0.0050621033,-0.015930176,-0.00069475174,-0.05114746,-0.010978699,-0.030776978,0.014762878,0.017684937,0.023406982,0.027175903,-0.012313843,-0.013641357,0.017822266,0.04031372,-0.009414673,-0.0390625,-0.031707764,0.022033691,-0.017852783,0.012672424,0.015640259,-0.02482605,-0.002439499,0.0023937225,-0.006591797,-0.0012674332,-0.021774292,0.04373169,0.031219482,-0.008613586,0.0107421875,0.014282227,0.014305115,0.02003479,0.025222778,-0.0016736984,0.0262146,0.056243896,-0.0018892288,0.026779175,0.0076560974,-0.038604736,0.03265381,-0.020935059,0.01638794,-0.02619934,0.0050735474,-0.020004272,-0.020584106,-0.026916504,0.023162842],"createdAt":"2026-04-18T18:31:51.243Z","updatedAt":"2026-04-29T01:04:47.088Z","lastSeenAt":"2026-04-29T01:04:47.088Z","tsv":"'/api/v1/settings':38,160,230 '/request':14,32 '0.02':13,31,94,138 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':145 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':152 '16':220 '20000':129 '402':204 '6':133 'Base network API' 'USDC gated API' 'access':74 'account':243 'across':97,222 'actual':210 'address':143 'advertis':91 'ai/ml':60 'ambigu':236 'analyt':59 'api':10,28,55,73,103,172 'asset':149 'avail':165,197 'base':18,36,87,154 'behind':78 'broad':49 'broader':217 'categori':224 'challeng':82,124 'charg':12,30 'collect':50 'commit':111 'configur':241 'confirm':201 'connect':178 'content':184 'contract':150 'crawl':168 'data':58,63 'decim':134 'doc':169 'document':166 'endpoint':5,23,39,56,69,100,161,199,221,233 'equat':136 'exact':120,156 'exampl':196 'expos':47 'finance/web3':62 'flat':93 'four':223 'function':235 'gate':3,21,77 'handl':114 'http-post' 'infer':61 'infrastructur':65 'key':104 'label':71 'limit':107 'list':219 'live':202 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':43 'make':231 'maxamountrequir':127 'may':238 'minimum':110 'multi':9,27 'multi-api':8,26 'network':88 'none':226 'openapi':188 'page':173 'part':41 'pay':141 'pay-per-call API' 'pay-per-request' 'pay-to':140 'payabl':54 'payment':81,112,213 'per':95 'platform':11,29,45,90,218,240 'post':206 'premium':72 'premium API access' 'price':170 'prompt':180 'protocol':118 'purpos':157 'rate':106 'represent':135 'request':96 'request/response':191 'requir':83 'return':175,203,211,239 'schema':192 'scheme':121 'set':4,22,244 'span':57 'spec':189 'specif':68 'specifi':125 'unclear':163 'unknown':215 'usag':195 'usdc':16,34,84,131,148 'usdc-base' 'util':66 'via':15,33,115 'wallet':179 'x402':2,20,53,80,117 'x402 settings endpoint' 'x402-gated':1,19 'x402-payable':52 'x402-payment'","prices":[{"id":"7a83e3e6-16cc-4d10-b151-ec3d1437d07e","listingId":"3ff7324c-5212-476b-b98f-6c1b81b6622a","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/settings","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:31:51.243Z"}],"sources":[{"listingId":"3ff7324c-5212-476b-b98f-6c1b81b6622a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/settings","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:31:51.243Z","lastSeenAt":"2026-04-29T01:04:47.088Z"}],"details":{"listingId":"3ff7324c-5212-476b-b98f-6c1b81b6622a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/settings \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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, USDC on Base, maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/settings"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The platform lists 16 endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/settings"}],"useCases":["Retrieving platform or account settings behind a micropayment wall","Programmatic access to configuration data via x402 payment","Agent-driven API discovery on a multi-endpoint pay-per-request platform"],"bestFor":["Developers exploring x402 protocol integrations","Agents needing low-cost, keyless API access on Base","Testing x402 payment flows with a live endpoint"],"notFor":["Users who need documented request/response schemas before integrating","High-volume use cases where $0.02/request adds up without clear value","Anyone needing a specific, well-documented settings or configuration API"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:01.727Z"},"updatedAt":"2026-04-29T01:04:47.088Z"}}