{"id":"330bbfc9-5db7-4a9f-8964-7ed45f44e958","shortId":"qecPbx","kind":"x402","title":"Download backup data for January 2026 via x402 micropayment on Base network.","tagline":"Download backup data for January 2026 via x402 micropayment on Base network.","description":"This endpoint at lowpaymentfee.com provides access to a backup file for the period 2026-01 via a simple POST request, gated by an x402 payment challenge. The endpoint accepts USDC payments on the Base network at $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to receive the response.\n\nlowpaymentfee.com hosts a broader suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints on the platform share the same $0.02/request pricing model, settled in USDC on Base. This specific endpoint (/api/v1/backups/2026-01/download) appears to serve downloadable backup data for January 2026.\n\nDocumentation on the site is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual content and format of the backup data are unknown beyond the declared MIME type of application/json.","tags":[],"capabilities":["x402-payment","usdc-base-network","backup-download","pay-per-request","no-api-key","json-response"],"categories":["storage","data"],"synonyms":["backup download API","data export","x402 endpoint","USDC micropayment API","Base network API","pay-per-call backup","lowpaymentfee"],"warnings":["No OpenAPI spec or schema documentation available","Docs, API, pricing, and README pages all render only 'Connect wallet' with no content","The nature and contents of the 'backup' data are completely undocumented","No example request or response payloads available","Backup period '2026-01' is in the future relative to typical current dates, which is unusual"],"endpointUrl":"https://lowpaymentfee.com/api/v1/backups/2026-01/download","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/backups/2026-01/download","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the actual content of the backup is undocumented. This is effectively a stub listing with minimal verifiable detail.","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":"2026-04-19T15:48:13.165Z","embedding":[-0.030700684,-0.020904541,0.024230957,-0.0045928955,0.001490593,-0.021469116,-0.01864624,0.037841797,0.029586792,-0.06719971,0.021972656,-0.03717041,-0.035980225,-0.0546875,-0.000151515,0.05340576,-0.021347046,-0.015457153,-0.06854248,-0.011169434,0.039886475,-0.031799316,-0.0026302338,0.010131836,0.0035877228,-0.019515991,-0.031066895,0.00081014633,0.0036334991,-0.039764404,0.023147583,-0.031677246,-0.013000488,0.005683899,0.008895874,0.02067566,0.011688232,-0.013366699,0.026733398,-0.014701843,0.019714355,-0.0758667,0.021987915,0.02758789,-0.016540527,-0.020568848,0.024032593,-0.036834717,0.026779175,-0.010787964,-0.02319336,-0.008796692,-0.031341553,0.0072135925,0.018585205,-0.007827759,0.025314331,0.00667572,0.0021839142,0.013504028,0.0029239655,-0.04937744,-0.024291992,-0.022384644,0.026824951,0.02633667,0.008972168,0.052734375,-0.00907135,0.06585693,0.017242432,0.049072266,0.012550354,-0.020492554,-0.007423401,0.01927185,0.007129669,0.051513672,-0.0024642944,-0.047027588,0.011955261,0.007911682,-0.02734375,0.003665924,-0.008430481,-0.04034424,-0.0075149536,0.028411865,-0.0037574768,0.068359375,-0.053009033,0.016860962,0.0023651123,-0.010971069,0.017929077,-0.011749268,-0.029251099,0.018249512,0.018630981,0.0029468536,-0.004760742,-0.032470703,0.014533997,-0.058380127,0.03744507,0.027923584,0.03942871,-0.006263733,0.009811401,-0.0042037964,-0.051635742,-0.008857727,0.014297485,-0.024093628,0.0059432983,0.017028809,-0.0473938,0.00033807755,-0.010734558,0.025634766,-0.044158936,0.0463562,0.005138397,-0.0059280396,0.022644043,-0.035186768,-0.012268066,0.0050735474,-0.0619812,-0.004360199,0.06536865,0.024353027,0.02330017,-0.059417725,-0.011657715,0.019882202,-0.018875122,-0.015670776,-0.04812622,-0.008148193,0.021713257,-0.034210205,0.024368286,0.018630981,-0.08874512,0.008277893,-0.02734375,0.017105103,-0.015419006,-0.0031661987,0.0070724487,0.022613525,0.021697998,-0.014259338,-0.026779175,-0.023910522,-0.011260986,0.0036296844,-0.01751709,0.02407837,-0.041503906,0.03189087,0.0055351257,-0.013282776,0.019454956,0.033996582,-0.012626648,-0.078063965,-0.09362793,-0.050994873,-0.003982544,-0.0064849854,-0.0011844635,-0.0132369995,-0.019134521,-0.028671265,-0.019088745,-0.0015354156,0.020904541,-0.051513672,0.01928711,-0.049621582,0.033233643,-0.01285553,-0.0647583,-0.01927185,-0.044830322,0.06304932,0.005344391,0.03062439,0.015808105,0.010635376,0.03869629,0.013580322,-0.033996582,-0.021194458,0.03466797,-0.042053223,0.05609131,0.013961792,-0.01423645,-0.0128479,0.010253906,0.03564453,0.008262634,-0.02178955,-0.029953003,-0.04309082,-0.06329346,-0.04373169,0.019348145,0.015052795,-0.026489258,0.04699707,-0.030441284,-0.01966858,0.0063171387,0.026992798,0.015655518,0.034820557,0.018630981,-0.0012340546,0.01727295,0.03286743,-0.0027313232,0.018615723,0.031829834,0.0016298294,0.001748085,-0.027557373,0.020980835,0.028579712,-0.04208374,0.011230469,0.0036945343,0.02104187,-0.0036201477,-0.012878418,-0.011833191,0.01348114,-0.004524231,-0.003063202,-0.016036987,0.011169434,0.010444641,-0.015838623,-0.029144287,-0.062194824,0.02784729,0.0287323,0.035186768,-0.013847351,-0.0037269592,-0.028656006,0.0076446533,-0.052581787,0.021743774,0.06555176,-0.017715454,-0.00040388107,0.014717102,-0.008728027,-0.0552063,0.029663086,0.008796692,-0.014595032,0.0010185242,0.02154541,-0.05117798,0.01600647,0.004562378,0.03955078,0.066223145,-0.010467529,-0.054382324,0.0011758804,-0.011497498,-0.010612488,-0.0018911362,0.017242432,-0.008163452,0.011054993,-0.0085372925,0.0030670166,0.031921387,0.027145386,0.010871887,-0.00667572,0.0034675598,-0.02279663,-0.022903442,0.0072402954,0.0023212433,-0.043823242,0.02607727,-0.007461548,0.048034668,-0.025558472,0.013626099,-0.022598267,0.011909485,0.00844574,-0.04208374,-0.028289795,0.009284973,0.017059326,-0.0008625984,0.061920166,0.014884949,-0.006095886,-0.04058838,0.041992188,-0.034210205,-0.025115967,-0.0051994324,0.004333496,0.03933716,-0.0074806213,-0.040283203,-0.055480957,-0.025512695,-0.037231445,0.031143188,-0.0053863525,0.0043411255,0.007499695,-0.009651184,-0.0057907104,-0.026779175,-0.010688782,-0.025894165,-0.011695862,0.03729248,-0.024658203,-0.02330017,0.01789856,0.01436615,-0.02470398,0.019714355,0.02784729,-0.0047683716,-0.005207062,-0.012634277,-0.029632568,-0.003118515,-0.031433105,0.022750854,0.02406311,-0.0013170242,0.03704834,-0.05480957,-0.002538681,0.009468079,0.0038471222,0.029769897,0.0017089844,-0.011100769,-0.07952881,-0.042236328,-0.03062439,-0.043273926,0.018737793,0.029846191,-0.023880005,0.047851562,-0.014831543,-0.04626465,-0.03677368,0.02305603,-0.039398193,0.01574707,0.02406311,-0.03555298,-0.0008831024,-0.03930664,-0.0015525818,0.0079193115,0.026443481,0.017669678,0.033233643,0.052764893,0.03463745,0.0030288696,0.03640747,0.018966675,0.0423584,-0.016525269,0.0060577393,-0.02607727,-0.042663574,-0.0027370453,-0.007801056,-0.025482178,-0.05783081,0.030410767,0.04208374,0.062805176,-0.0021953583,0.014076233,0.0065193176,-0.026367188,0.0055885315,-0.053344727,-0.02659607,-0.0018911362,-0.04107666,0.03955078,0.0035934448,-0.0047187805,-0.044006348,0.009895325,-0.0129470825,0.00015795231,-0.03656006,0.055999756,-0.011474609,0.0051879883,0.050445557,-0.011909485,0.051452637,0.045806885,-0.04055786,0.013137817,0.023223877,-0.021942139,0.012138367,0.037017822,0.0068893433,0.004310608,-0.07104492,-0.016983032,-0.013633728,-0.013946533,-0.009590149,-0.015075684,0.014831543,0.03894043,0.014465332,-0.014335632,-0.01890564,0.035125732,0.02444458,-0.046691895,0.024520874,-0.03564453,-0.005748749,0.02670288,0.011787415,0.009124756,0.004219055,0.008308411,0.0036296844,-0.02168274,0.0013399124,-0.0067214966,-0.069885254,0.021347046,-0.018478394,0.016555786,-0.00605011,0.03414917,0.011146545,0.042022705,0.03616333,0.046539307,-0.030960083,-0.043029785,0.023742676,-0.068115234,0.013504028,0.031555176,-0.028961182,-0.009017944,0.022994995,-0.01927185,-0.028625488,-0.011528015,-0.00008529425,0.0017404556,0.019348145,-0.032440186,-0.048980713,-0.06591797,-0.021896362,0.018447876,0.074645996,0.026031494,0.035491943,-0.020080566,-0.039794922,0.031036377,0.013061523,0.037963867,-0.014923096,-0.020736694,-0.015380859,-0.013130188,-0.015457153,-0.0107040405,0.04434204,-0.0025978088,-0.0033740997,0.035369873,0.03164673,0.040496826,-0.01953125,-0.016159058,0.010116577,-0.02381897,0.0056114197,0.0009741783,0.04537964,0.02267456,-0.04156494,-0.035003662,0.05609131,0.010246277,0.025756836,-0.037475586,-0.00034499168,-0.012969971,0.018478394,0.015548706,-0.037841797,-0.001168251,0.00062322617,-0.035949707,-0.10479736,0.04623413,-0.011360168,0.03555298,0.018661499,-0.0027313232,0.008056641,0.0022830963,0.0234375,0.007183075,-0.017974854,-0.031021118,-0.0055389404,-0.012924194,-0.0024089813,-0.008720398,-0.01222229,0.00554657,-0.022644043,0.037353516,-0.015129089,0.0020828247,0.036590576,0.01979065,0.008834839,-0.0039863586,-0.0077400208,-0.001543045,0.02142334,0.0033607483,-0.040496826,0.031219482,0.0044174194,0.02178955,0.026641846,0.06298828,0.0390625,-0.021820068,-0.003162384,0.0046958923,-0.004219055,-0.01675415,0.0030517578,0.01499176,0.012176514,0.002494812,-0.05886841,0.01197052,0.01966858,-0.04006958,-0.029403687,-0.0037574768,0.021118164,-0.03945923,0.0231781,-0.0023517609,0.060668945,-0.02041626,0.0033473969,0.011459351,0.026382446,0.020767212,-0.0032806396,-0.008216858,0.023635864,-0.026641846,0.0028324127,0.0061531067,0.016418457,0.024917603,-0.023254395,0.008575439,-0.010307312,-0.015586853,-0.020767212,-0.006832123,0.030136108,0.0087890625,-0.0015716553,0.03338623,0.023605347,0.016357422,0.0045166016,0.02696228,0.017242432,-0.0011873245,-0.023788452,0.027786255,0.041656494,0.0019006729,-0.0064468384,0.016036987,0.008659363,0.033325195,-0.054016113,0.010009766,-0.0073776245,0.016799927,-0.03616333,-0.052612305,-0.03527832,-0.015258789,0.0491333,-0.021072388,0.0007042885,0.02696228,0.0023059845,-0.006378174,0.02848816,0.018081665,-0.0058288574,-0.029296875,-0.0713501,-0.0043029785,-0.0071487427,-0.008758545,-0.036590576,0.012641907,-0.0014133453,-0.039978027,0.0033855438,-0.044281006,0.011802673,-0.012275696,-0.004348755,0.051330566,0.0050811768,0.019439697,-0.019500732,0.005256653,0.015586853,-0.005882263,0.041229248,-0.0435791,0.027008057,0.01713562,-0.0022525787,-0.006198883,0.019073486,0.03878784,0.023223877,0.025985718,0.039764404,-0.048431396,0.027435303,-0.031173706,0.0018606186,-0.022018433,-0.038269043,-0.006214142,-0.018829346,0.00894928,0.021697998,-0.010574341,-0.02357483,-0.053649902,-0.040374756,0.007183075,-0.051849365,0.023086548,0.025482178,0.029174805,-0.024124146,0.0050239563,-0.009971619,0.00080013275,-0.0070343018,0.018249512,0.028518677,0.041992188,0.0262146,0.01398468,-0.016616821,-0.021499634,-0.035308838,-0.0022697449,-0.021759033,-0.036590576,0.0011482239,0.0027751923,-0.006374359,-0.01020813,-0.05279541,-0.014167786,0.0051841736,-0.051635742,-0.009796143,0.009147644,0.004234314,0.0018835068,0.014053345,-0.010635376,-0.010192871,-0.009681702,0.021469116,-0.0042686462,-0.040740967,-0.030059814,0.004917145,0.029190063,0.0027656555,0.0035171509,-0.0637207,-0.004337311,-0.019622803,-0.049621582,0.0062408447,0.0066452026,-0.011947632,-0.030593872,0.01727295,-0.04421997,0.008834839,-0.012001038,-0.03643799,-0.00004863739,0.01574707,0.009315491,-0.019851685,0.032043457,-0.0075263977,-0.016662598,-0.026123047,0.022247314,0.010169983,0.007911682,0.008552551,0.038635254,0.007091522,-0.028915405,-0.0085372925,-0.031829834,0.015129089,0.0066566467,0.009338379,0.007713318,0.016967773,0.006877899,-0.0140686035,-0.04046631,0.018569946,0.06829834,0.004562378,-0.0052337646,-0.0056114197,-0.018356323,-0.0028648376,0.031921387,-0.025527954,0.0054893494,-0.015029907,0.01411438,-0.004261017,0.03564453,0.027664185,0.019088745,0.015342712,-0.024017334,0.0119018555,-0.0016269684,0.002407074,-0.09442139,-0.03970337,-0.057769775,-0.022140503,0.010902405,-0.011039734,0.012084961,0.01449585,-0.009155273,-0.0725708,-0.0077400208,0.043701172,0.00038933754,-0.01008606,-0.00025582314,0.019866943,0.0024490356,-0.009346008,-0.043640137,0.011459351,-0.02810669,-0.026306152,-0.045288086,0.041870117,0.006095886,0.009941101,0.025054932,0.015296936,0.0149383545,-0.031921387,0.014038086,-0.029327393,0.03213501,-0.017333984,-0.017730713,-0.013725281,0.013999939,0.030334473,-0.035339355,0.021987915,0.0077781677,0.01675415,0.007736206,0.02015686,0.045043945,-0.055999756,-0.0013360977,0.008712769,0.00945282,0.01777649,-0.041656494,0.059783936,0.008491516,-0.00019681454,0.002609253,-0.019714355,0.012313843,-0.017288208,-0.029815674,0.0003979206,0.01637268,-0.004398346,0.0076942444,-0.009460449,0.0035972595,0.007320404,-0.0047073364,-0.011016846,-0.0007801056,-0.0073623657,0.019012451,-0.009407043,0.0077400208,-0.021057129,0.036376953,0.030319214,0.035736084,0.015930176,-0.026901245,-0.0082092285,0.017059326,-0.018722534,-0.012626648,0.021972656,0.023971558,0.01234436,0.007820129,0.011680603,-0.020721436,-0.0014400482,-0.027770996,0.007232666,0.0028877258,-0.038360596,-0.012481689,0.0284729,0.023132324,-0.0003349781,-0.012428284,-0.002166748,-0.023361206,-0.035003662,-0.03778076,-0.01663208,0.023727417,0.0063285828,-0.014335632,0.017044067,-0.012451172,0.040039062,-0.03387451,-0.012580872,0.031799316,0.03527832,-0.0052261353,-0.03665161,0.006462097,0.00066280365,-0.01335144,0.009811401,-0.022445679,0.01927185,0.054138184,0.019866943,0.026733398,0.025375366,0.017913818,-0.015457153,-0.008010864,0.008956909,0.018859863,-0.003194809,0.03036499,-0.038879395,0.008918762,0.02494812,-0.012748718,-0.022415161,-0.01109314,-0.014373779,0.026473999,0.000497818,0.005256653,0.0390625,-0.00025510788,0.007144928,-0.027664185,-0.0039596558,-0.0025234222,-0.03656006,-0.020446777,0.004295349,0.007369995,0.012001038,0.008079529,-0.018478394,0.034484863,-0.033325195,0.03427124,-0.0008678436,0.013374329,-0.04107666,-0.012870789,0.0015888214,0.009849548,-0.009895325,0.0048065186,-0.0021190643,0.022109985,0.029541016,0.007713318,0.0070266724,0.0074539185,0.03756714,-0.030410767,-0.00881958,0.007019043,-0.04046631,0.031677246,-0.019592285,0.06341553,0.0496521,0.0022697449,0.033477783,0.021087646,0.028259277,0.000005066395,0.028335571,-0.015930176,0.010940552,0.009147644,0.029327393,0.00605011,0.032958984,-0.0018100739,0.0047340393,0.051513672,0.010620117,-0.000995636,0.033569336,0.06274414,0.023223877,-0.0040626526,0.012001038,-0.022659302,-0.053100586,-0.006465912,-0.022476196,0.03869629,0.015640259,0.04135132,0.026473999,0.0031108856,-0.006832123,0.048553467,-0.045440674,-0.008590698,0.054748535,0.03942871,-0.0019187927,-0.0072135925,-0.022125244,0.009384155,-0.028747559,-0.018447876,0.022781372,-0.0029087067,-0.012512207,-0.01651001,0.017242432,-0.0054969788,-0.01638794,0.016235352,-0.010681152,-0.024047852,0.020614624,0.0041160583,0.017211914,0.02067566,-0.006969452,0.016525269,-0.019058228,0.0014677048,-0.007297516,0.017227173,0.0033283234,-0.015670776,-0.0070381165,0.020843506,0.03137207,0.0309906,-0.0028572083,0.009056091,0.021347046,0.010025024,-0.0014686584,0.038757324,0.011978149,0.048706055,0.025497437,0.007499695,0.029220581,-0.01449585,0.012687683,0.009811401,0.017044067,0.0055503845,-0.007286072,0.03186035,-0.017440796,0.029067993,0.00497818,-0.009101868,0.031066895,0.028961182,-0.010467529,0.020935059,-0.022354126,-0.01260376,-0.0012960434,0.019897461,0.004245758,0.002002716,0.014945984,-0.00091409683,0.028915405,-0.018569946,0.005821228,-0.00087833405,-0.017623901,-0.008621216,0.023910522,-0.058563232,-0.004432678,0.034118652,-0.013572693,-0.040649414,0.029449463,0.0022068024,-0.018981934,0.0256958,-0.0028381348,-0.00932312,-0.030212402,0.035888672,0.035308838,0.01701355,-0.012031555,-0.03768921,0.0026073456,0.039245605,-0.0072517395,-0.00705719,-0.028701782,-0.028625488,-0.010299683,-0.0021572113,-0.014663696,0.011436462,-0.01222229,0.0040016174,0.0073776245,0.020141602,0.021209717,0.017303467,-0.017944336,-0.0025997162,-0.001830101,0.0067710876,0.011947632,-0.005695343,-0.0004963875,0.01235199,-0.02470398,0.017349243,0.028839111,0.010238647,0.02229309,0.009239197,-0.016204834,0.010063171,-0.042053223,0.019195557,-0.008079529,0.017318726,0.004501343,0.018371582,-0.020996094,-0.04928589,0.006248474,-0.024353027,-0.021331787,0.01751709,-0.0009255409,0.01309967,0.021499634,0.052825928,0.022521973,-0.010017395,0.059692383,-0.003955841,0.04260254,-0.02458191,-0.01625061,0.021026611,0.013389587,0.040985107,-0.007987976,0.01033783,-0.0413208,0.03475952,0.024475098,0.02784729,0.021575928,-0.0011367798,-0.02470398,0.03488159,-0.008010864,0.025527954,0.031585693,0.014297485,0.024124146,-0.031982422,-0.019302368,0.0035381317,-0.0018358231,-0.013832092,0.03250122,0.002325058,-0.016281128,-0.03378296,-0.023147583,0.013290405,0.00018775463,-0.011703491,-0.005657196,-0.016021729,0.009437561,-0.021118164,-0.014831543,0.01096344,-0.0023231506,-0.057037354,0.0017709732,0.0101623535,0.013847351,-0.02822876,0.023529053,0.0345459,0.022903442,0.010276794,0.0289917,-0.012687683,0.027267456,-0.005142212,0.004333496,0.062194824,0.015556335,-0.016189575,0.02166748,0.016586304,-0.006565094,-0.004261017,0.040130615,-0.0022602081,0.021057129,0.000831604,-0.014465332,-0.0052871704,0.013671875,-0.0067329407,-0.010116577,-0.0033988953,0.004940033,0.003370285,0.009933472,0.0051345825,0.01777649,0.0019607544,-0.020248413,0.033355713,0.03765869,0.02557373,-0.045440674,0.0023841858,-0.00020170212,0.00006467104,-0.009063721,-0.019454956,0.005619049,-0.022918701,-0.0022640228,0.02319336,0.007835388,0.011047363,-0.018325806,-0.007507324,0.012969971,0.02494812,0.019622803,0.0019388199,-0.005558014,-0.008361816,-0.0317688,0.006591797,-0.018463135,-0.011741638,0.008560181,0.04663086,-0.0124053955,-0.024093628,0.02166748,0.004169464,0.011726379,-0.022323608,0.021469116,0.010284424,0.004638672,-0.0027427673,0.0031394958,0.037841797,-0.010055542,-0.03918457,-0.01965332,0.019744873,0.03881836,0.007774353,-0.018127441,0.005039215,0.025817871,0.00793457,0.03302002,-0.0052948,0.047454834,0.0047035217,-0.019348145,-0.035095215,0.0031089783,-0.014846802,-0.019180298,0.00021243095,-0.028305054,-0.0058250427,0.008155823,0.01826477,-0.008544922,-0.033355713,-0.014518738,-0.031799316,-0.022842407,0.027999878,-0.0031089783,0.027450562,-0.010719299,-0.017028809,0.038879395,-0.02418518,-0.055908203,-0.021987915,-0.011146545,-0.030395508,-0.060272217,0.01309967,0.0048828125,-0.0023536682,-0.026931763,0.007911682,-0.0032520294,0.002506256,-0.014259338,-0.017745972,0.006881714,0.009391785,0.006198883,0.013504028,-0.009063721,-0.033294678,-0.034179688,-0.025405884,0.011161804,-0.010559082,0.035064697,0.016342163,0.038726807,0.03555298,-0.029449463,-0.0072021484,0.0014324188,-0.011329651,0.011947632,-0.011268616,-0.016525269,0.018295288,0.03515625,-0.009597778,-0.0074424744,0.047576904,-0.008728027,-0.020141602,0.025878906,0.02482605,-0.0126571655,0.027328491,0.015670776,0.0076179504,-0.0048561096,-0.027694702,-0.0050201416,0.012969971,0.012176514,-0.011917114,-0.007194519,-0.0010023117,0.015586853,-0.017730713,-0.0029792786,0.033477783,0.007434845,-0.02619934,0.017944336,0.0062942505,0.02381897,-0.012878418,-0.045532227,0.015701294,0.07342529,-0.0019435883,0.0023326874,0.010276794,0.005519867,-0.042388916,0.0046424866,-0.006313324,-0.0020599365,-0.028915405,0.004550934,-0.033935547,0.01776123,-0.015350342,0.010627747,-0.015960693,0.038635254,0.000053286552,-0.022750854,0.00041246414,0.021835327,0.0023517609,-0.036346436,0.0042266846,-0.009590149,-0.005428314,-0.008735657,0.005104065,-0.0579834,-0.022399902,-0.015556335,-0.017425537,0.006046295,0.020858765,-0.005012512,-0.007701874,-0.0025539398,-0.018615723,-0.0030708313,0.018356323,-0.00579834,-0.022277832,0.0059318542,0.025497437,-0.005859375,0.014053345,-0.019210815,-0.005607605,0.0074691772,-0.00084352493,0.021133423,-0.007545471,0.015510559,-0.002532959,-0.027328491,0.011917114,0.0047416687,0.03250122,-0.018417358,-0.006000519,-0.005710602,-0.0033302307,0.021224976,0.0051231384,-0.018295288,0.009925842,-0.021697998,-0.019714355,-0.00283432,0.006122589,0.024002075,-0.0056381226,0.030685425,-0.01084137,-0.0056152344,-0.011672974,-0.016296387,-0.01374054,-0.0020713806,0.015548706,-0.010894775,-0.007850647,0.013946533,-0.013336182,-0.02243042,-0.0067214966,0.01927185,0.002626419,0.015975952,0.038146973,0.024124146,0.033447266,0.012397766,0.024276733,-0.01411438,0.0026741028,0.025909424,0.014198303,0.05239868,-0.020446777,-0.010169983,0.0048675537,0.011169434,-0.00932312,-0.0068969727,0.018737793,-0.027160645,-0.066833496,0.019866943,-0.023620605,0.0023212433,-0.0004339218,0.007896423,-0.029922485,0.0043678284,-0.044403076,-0.00047683716,-0.052581787,0.008262634,0.026748657,-0.013389587,0.010856628,-0.001627922,-0.027893066,0.01335144,0.028656006,-0.016296387,-0.026382446,-0.0048294067,0.004901886,-0.010528564,0.01727295,0.016357422,-0.017593384,0.0037174225,0.0132369995,-0.0262146,-0.015090942,-0.010498047,0.020828247,0.01322937,-0.01927185,-0.036071777,0.02053833,0.017532349,-0.01576233,0.0042381287,-0.0035171509,0.02357483,0.03479004,0.004421234,0.008758545,-0.0059280396,-0.044006348,0.039031982,0.017868042,0.027816772,-0.015090942,-0.0067214966,-0.048583984,-0.0039863586,0.013580322,-0.02357483],"createdAt":"2026-04-18T19:59:11.287Z","updatedAt":"2026-04-22T13:32:02.905Z","lastSeenAt":"2026-04-22T13:32:02.905Z","tsv":"'-01':39 '/api/v1/backups/2026-01/download':157 '/request':146 '0.02':61,145 '000':65 '20':64 '2026':6,18,38,166 '402':215 '6':71 'Base network API' 'USDC micropayment API' 'accept':53 'access':30 'actual':219 'ai/ml':113 'analysi':116 'analyt':112 'api':74,109,176 'appear':158 'application/json':235 'attach':83 'avail':206 'backup':2,14,33,162,225 'backup download API' 'backup-download' 'base':11,23,58,66,153 'beyond':229 'broader':102 'call':108 'caller':81 'challeng':50,216 'classif':118 'confirm':210 'connect':185 'content':220 'convers':135 'data':3,15,111,121,163,226 'data export' 'decim':72 'declar':231 'detail':192 'doc':175 'document':167,201 'download':1,13,161 'embed':119 'endpoint':26,52,138,156,208 'estim':129 'exampl':204 'exchang':124 'extrem':172 'feed':123 'file':34 'finance/web3':120 'format':222 'gas':128 'gate':45 'generat':136 'geocod':133 'header':88 'host':100 'infer':114 'infrastructur':131 'januari':5,17,165 'json-response' 'key':75 'limit':78 'live':211 'lowpaymentfee' 'lowpaymentfee.com':28,99 'micropay':9,21 'mime':232 'model':148 'network':12,24,59 'no-api-key' 'openapi':196 'page':180 'pay':106 'pay-per-cal':105 'pay-per-call backup' 'pay-per-request' 'payload':205 'payment':49,55,87,93 'per':62,107 'period':37 'platform':141 'post':43 'price':122,147,177 'prompt':187 'proof':94 'proper':214 'provid':29 'quot':127 'rate':77,125 'readm':179 'receiv':96 'render':182 'request':44,63 'request/response':199 'requir':80 'respons':98 'return':212 'schema':200 'sentiment':115 'serv':160 'settl':149 'share':142 'simpl':42 'simpli':82 'site':170 'span':110 'spars':173 'spec':197 'specif':155 'suit':103 'summar':117 'technic':191 'token':126 'type':233 'unit':67 'unknown':228 'usdc':54,69,151 'usdc-base-network' 'util':132 'valid':91,134 'via':7,19,40 'wallet':186 'x':86 'x-payment':85 'x402':8,20,48,92 'x402 endpoint' 'x402-payment'","prices":[{"id":"2fbcae72-0c67-4e39-8333-5fbb64ca473d","listingId":"330bbfc9-5db7-4a9f-8964-7ed45f44e958","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/backups/2026-01/download","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:59:11.287Z"}],"sources":[{"listingId":"330bbfc9-5db7-4a9f-8964-7ed45f44e958","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/backups/2026-01/download","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:59:11.287Z","lastSeenAt":"2026-04-22T13:32:02.905Z"}],"details":{"listingId":"330bbfc9-5db7-4a9f-8964-7ed45f44e958","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/backups/2026-01/download \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 402 challenge with USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/backups/2026-01/download"},{"claim":"maxAmountRequired is 20000 base units of USDC (USD Coin, 6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/backups/2026-01/download"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages show only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Downloading archived backup data for January 2026","Programmatic retrieval of backup snapshots via micropayment","Agent-driven data acquisition without API key management"],"bestFor":["Agents needing on-demand backup data without subscription commitments","Developers who want keyless, pay-per-use data access on Base","Automated workflows requiring archived data retrieval"],"notFor":["Users needing detailed API documentation or schema guarantees before purchasing","Bulk or high-volume backup retrieval where per-request pricing adds up","Anyone looking for non-JSON backup formats"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:27.765Z"},"updatedAt":"2026-04-22T13:32:02.905Z"}}