{"id":"4a2dc083-fad9-401d-85c7-808051d38a38","shortId":"XQMaFd","kind":"x402","title":"x402-gated HR document endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated HR document endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com serves an HR document resource (document ID 4) behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-payment scheme. The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals).\n\nThe provider lowpaymentfee.com hosts a broader suite of pay-per-request APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments. However, the specific endpoint being listed here (/api/v1/hr/documents/4) is not explicitly mentioned on the provider's landing page among the advertised API categories, so its exact content and purpose are unclear beyond the generic \"Premium API Access\" label.\n\nThe x402 challenge was successfully captured (HTTP 402 with a well-formed accepts array), confirming the endpoint is live. No OpenAPI schema, detailed documentation, or example responses were found in the crawl. The endpoint's actual response payload after payment is unknown.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","hr-document","json-response","no-api-key"],"categories":["data","documents"],"synonyms":["HR document API","pay-per-call API","x402 USDC endpoint","Base network API","premium document access","lowpaymentfee"],"warnings":["Endpoint /api/v1/hr/documents/4 is not listed among the provider's advertised API categories — its content and purpose are unclear.","No OpenAPI spec, request schema, or response schema available.","No example responses found; actual payload after payment is unknown.","Provider docs pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no useful content."],"endpointUrl":"https://lowpaymentfee.com/api/v1/hr/documents/4","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/hr/documents/4","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and well-formed, confirming the endpoint exists and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation for this specific endpoint, no example request/response, and the endpoint (/api/v1/hr/documents/4) is not listed among the provider's advertised APIs, making its actual content uncertain.","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":"2026-04-21T21:22:52.453Z","embedding":[-0.03942871,-0.007873535,0.04385376,0.015670776,0.03378296,-0.027862549,-0.004966736,0.010887146,0.081604004,-0.0803833,0.03378296,-0.04284668,-0.02670288,-0.02507019,-0.018722534,0.03314209,0.007106781,0.0058784485,-0.041412354,0.022766113,0.04196167,-0.01776123,-0.028869629,0.024047852,-0.0039024353,-0.0015888214,-0.014724731,-0.006023407,-0.009864807,-0.06161499,0.019012451,-0.023254395,-0.020446777,-0.0032520294,-0.010467529,0.009902954,-0.0028018951,0.07067871,0.0059280396,-0.0073547363,0.0041046143,-0.044921875,0.0038337708,-0.013008118,-0.05178833,-0.0064468384,0.012367249,0.008514404,0.00017738342,-0.019943237,-0.04977417,0.009208679,-0.016494751,0.044189453,0.029312134,0.01953125,0.0059051514,-0.020904541,0.010665894,0.014472961,0.0062675476,-0.069885254,0.0005736351,0.0013189316,0.02444458,0.044006348,-0.037109375,0.033996582,0.0079956055,0.046142578,0.042938232,0.06890869,0.04437256,0.023620605,0.024475098,-0.021881104,-0.0041618347,0.03314209,-0.038208008,-0.007926941,-0.013938904,0.002494812,-0.042175293,-0.024780273,-0.035858154,-0.063964844,-0.008155823,0.022583008,-0.03704834,0.011444092,-0.081726074,0.024139404,0.0368042,0.015853882,-0.007270813,-0.044036865,-0.050323486,-0.0020122528,0.012825012,0.009140015,0.0027885437,-0.056396484,0.01763916,0.0023059845,0.03668213,0.048675537,0.015312195,0.022613525,0.0115356445,-0.037261963,-0.029708862,0.012123108,-0.03036499,0.017959595,0.018188477,-0.011245728,-0.036834717,0.0058059692,-0.033813477,0.023864746,-0.04864502,0.039123535,-0.0055885315,-0.010566711,0.00082731247,-0.016738892,-0.01777649,0.015312195,-0.051330566,-0.004245758,0.021972656,0.011383057,0.016815186,-0.050872803,-0.0076446533,-0.0023937225,-0.025375366,-0.03466797,-0.048583984,-0.022979736,0.042999268,-0.047088623,0.0000936389,0.022949219,-0.09661865,0.017654419,-0.04598999,0.0034103394,-0.009803772,-0.008468628,-0.017120361,0.019378662,-0.018508911,-0.0050468445,-0.014801025,-0.027832031,0.015975952,0.017913818,-0.012672424,0.053100586,-0.0039024353,0.021743774,0.030258179,0.022750854,0.04296875,0.025665283,0.015151978,-0.079956055,-0.09057617,-0.021820068,-0.026779175,-0.020996094,-0.044891357,0.018920898,-0.009223938,-0.046569824,-0.0068855286,-0.008102417,-0.002407074,-0.029846191,-0.010528564,-0.031585693,-0.007858276,0.0028266907,-0.04486084,-0.04714966,-0.043762207,0.06378174,0.001086235,0.02458191,0.034423828,0.008148193,0.05340576,-0.03378296,0.0030727386,-0.032073975,0.02923584,-0.04522705,0.027770996,-0.007259369,0.029129028,-0.013160706,0.017120361,0.038726807,-0.021453857,-0.023254395,0.0012969971,-0.025787354,-0.025146484,-0.04748535,0.022583008,0.03491211,0.009002686,0.022216797,-0.024520874,-0.034576416,0.014724731,0.010444641,0.038024902,0.03640747,0.0030441284,0.017959595,0.023010254,0.015235901,-0.056549072,0.026229858,0.01663208,-0.014930725,-0.02394104,-0.024139404,0.017654419,0.046173096,-0.009223938,-0.0047340393,-0.0053749084,0.006137848,-0.017364502,0.010726929,-0.0025463104,-0.023483276,-0.033416748,-0.019577026,0.0066947937,0.004508972,0.015670776,-0.027359009,-0.038024902,-0.0826416,0.07244873,0.037475586,0.01838684,-0.031921387,-0.004634857,-0.0109939575,-0.025131226,-0.043121338,0.013366699,0.047546387,-0.009887695,-0.008529663,0.019561768,-0.0058555603,-0.018676758,-0.0016918182,-0.0059432983,-0.0055618286,-0.0129776,0.010536194,-0.039093018,0.01701355,0.0043296814,0.035186768,0.055236816,-0.037109375,-0.07312012,0.00018465519,0.010177612,0.0079574585,-0.03729248,0.01637268,0.0059127808,0.035125732,0.018157959,0.0072631836,0.02355957,0.01689148,-0.0007033348,0.0026111603,-0.005420685,0.0023899078,-0.023422241,0.013954163,0.014778137,-0.09222412,-0.005050659,0.01928711,0.047973633,-0.05340576,0.06854248,-0.033172607,0.012794495,0.06774902,-0.0058403015,-0.0446167,0.00233078,0.02319336,0.023513794,0.036224365,0.016235352,0.0068740845,-0.022155762,0.05029297,-0.03363037,-0.015945435,0.006591797,0.021636963,0.06304932,0.019195557,-0.0680542,-0.043945312,0.019836426,-0.026779175,0.030258179,-0.033569336,0.012283325,-0.033691406,0.017608643,-0.019088745,-0.023956299,-0.037506104,-0.012046814,-0.0034942627,-0.0076026917,-0.002916336,-0.022460938,0.015014648,-0.012741089,0.004234314,0.0010728836,0.013320923,0.021972656,-0.013664246,-0.03201294,-0.026657104,-0.022720337,-0.02507019,0.03491211,0.0158844,0.015602112,0.038757324,-0.043518066,0.023483276,0.011161804,0.034179688,0.018096924,0.0041275024,0.016342163,-0.057495117,-0.03488159,-0.0031414032,-0.053741455,0.033569336,0.024551392,-0.022979736,0.060668945,0.009536743,0.0146865845,-0.0024433136,0.06036377,-0.02494812,-0.017227173,0.0006480217,-0.019378662,-0.0335083,-0.008430481,0.005470276,0.020965576,0.042236328,0.018096924,0.026809692,0.052581787,0.03250122,0.007663727,-0.015289307,0.012168884,0.02532959,-0.025878906,-0.008300781,-0.01524353,-0.037902832,0.022125244,-0.005836487,-0.01928711,-0.07574463,0.032592773,0.009277344,0.054107666,0.024658203,0.008796692,0.030181885,-0.03262329,-0.00020229816,-0.026809692,-0.025543213,-0.018676758,-0.053833008,0.0026454926,-0.00065612793,0.024520874,-0.053741455,0.015129089,0.02357483,0.0074920654,-0.02809143,0.061309814,0.0021514893,-0.0146102905,0.045135498,-0.014541626,0.02999878,0.018600464,-0.040374756,0.03515625,0.025527954,-0.02709961,0.00434494,0.038146973,-0.04156494,0.004146576,-0.02658081,-0.037109375,-0.017715454,0.014701843,-0.06378174,-0.041900635,0.039520264,0.016479492,0.0048675537,-0.0058174133,0.0016183853,0.01878357,0.01272583,-0.054260254,0.00491333,-0.06008911,0.01335144,0.054107666,-0.015716553,-0.009147644,0.02420044,0.008285522,0.010055542,0.056640625,-0.005264282,0.00015723705,-0.03353882,0.035461426,0.0099105835,0.0070343018,0.02684021,0.034118652,0.032409668,0.0181427,0.03164673,0.011505127,-0.027511597,-0.052642822,0.015403748,-0.034301758,-0.01725769,-0.015037537,-0.027282715,0.015052795,-0.020126343,-0.023986816,-0.030303955,0.013092041,-0.045928955,0.024276733,0.02003479,-0.010223389,-0.044647217,-0.054260254,-0.04135132,0.008514404,0.078552246,0.037841797,0.007686615,-0.0041122437,0.0058670044,0.060791016,0.0008087158,0.0030117035,-0.015090942,-0.02104187,-0.015335083,-0.016418457,-0.028564453,-0.0053710938,0.040252686,-0.00995636,-0.05368042,0.016082764,-0.0027942657,0.017578125,0.023666382,-0.032440186,-0.0063323975,-0.033599854,0.004425049,-0.019317627,0.049591064,-0.0033817291,-0.0023212433,-0.05203247,0.024719238,0.023071289,0.053527832,-0.048309326,0.01574707,-0.004787445,0.0021400452,-0.007419586,-0.019378662,-0.009597778,0.022537231,-0.039215088,-0.051879883,0.03540039,0.0019168854,0.016540527,-0.0046844482,0.01902771,0.029678345,-0.0069236755,-0.004425049,0.0016345978,-0.020370483,-0.018844604,-0.039642334,-0.045074463,-0.027572632,0.0048713684,0.00076150894,0.036102295,-0.0055618286,0.010910034,0.011001587,-0.008644104,0.016143799,0.004257202,-0.006099701,0.018432617,0.0016889572,-0.015129089,0.056640625,0.026168823,-0.031677246,0.026397705,-0.0028839111,0.010772705,-0.02067566,0.015792847,0.04397583,-0.034240723,-0.0007019043,-0.0124435425,-0.04284668,-0.03475952,0.008338928,0.03491211,0.026000977,0.01637268,-0.039031982,0.033843994,0.022216797,-0.031173706,-0.016494751,0.041107178,0.033599854,-0.05117798,-0.00097227097,0.00982666,0.028045654,-0.030670166,-0.0022678375,0.027938843,0.02911377,-0.0019836426,0.02029419,0.006717682,0.016204834,0.0047569275,0.0049057007,0.0041160583,-0.031463623,0.011375427,0.013366699,0.009025574,0.014541626,0.02192688,-0.028869629,-0.034423828,0.0007638931,-0.00064992905,-0.015625,0.03225708,0.0012683868,0.013847351,-0.029190063,0.0012950897,0.009216309,-0.020462036,-0.014450073,0.0019760132,0.04257202,-0.025497437,0.000044882298,0.018356323,0.014579773,0.023208618,-0.042938232,-0.015014648,-0.004547119,0.0025043488,-0.030258179,-0.07305908,-0.016296387,-0.044708252,0.028564453,-0.020233154,-0.007080078,0.018707275,-0.012680054,-0.009223938,0.018936157,-0.017120361,0.015533447,-0.01499939,-0.025802612,-0.0017356873,-0.004386902,0.0020046234,-0.021743774,0.024383545,-0.0154800415,-0.029266357,-0.013404846,-0.02027893,0.0022392273,-0.02041626,-0.0047912598,0.010986328,0.03048706,0.022705078,-0.015586853,-0.045440674,-0.0067481995,0.005268097,0.032806396,-0.046844482,0.018569946,-0.006969452,0.0043945312,-0.0059013367,0.04333496,0.016403198,0.053527832,-0.01285553,0.025619507,-0.03982544,0.0035991669,-0.003955841,-0.010597229,0.018630981,-0.041992188,-0.003080368,-0.019165039,-0.0058059692,0.005958557,-0.00057697296,-0.017059326,-0.011116028,-0.040802002,-0.027328491,-0.05508423,0.03692627,0.016937256,0.04232788,0.0052490234,-0.0018405914,0.00957489,-0.012870789,-0.007904053,-0.00023436546,-0.008071899,0.01386261,0.029037476,0.013145447,-0.030044556,-0.031677246,0.0015153885,-0.0053710938,-0.041107178,-0.04019165,-0.042419434,-0.011047363,-0.005268097,0.026306152,-0.022125244,-0.015274048,-0.013053894,-0.018173218,0.007873535,0.002653122,-0.0051002502,0.012321472,-0.003818512,0.0038089752,-0.0035705566,0.0027332306,0.02079773,0.003396988,-0.03390503,-0.034210205,-0.0027179718,0.035461426,-0.00248909,-0.03186035,-0.024108887,-0.00059890747,-0.019989014,-0.057495117,0.008644104,-0.020431519,-0.0036125183,-0.03540039,0.010810852,-0.055541992,-0.007843018,-0.020187378,0.00121212,0.0051498413,0.0026397705,-0.026885986,-0.0023860931,0.012489319,-0.0037498474,-0.01096344,-0.033111572,0.00019848347,0.010429382,-0.023712158,0.01259613,0.058746338,0.0008664131,-0.016021729,-0.003250122,0.022445679,-0.003850937,-0.009155273,0.028167725,0.010002136,-0.012542725,-0.016052246,-0.0154953,-0.04031372,0.011566162,0.054656982,0.0041007996,0.007171631,-0.012214661,-0.019699097,0.013824463,0.040252686,-0.04449463,-0.0093688965,-0.02243042,0.031066895,-0.0068855286,0.019515991,-0.022079468,0.006061554,-0.015571594,-0.050201416,0.00014054775,0.0025157928,0.005622864,-0.059631348,-0.02305603,-0.058532715,0.020996094,-0.021774292,-0.017364502,0.031585693,0.00053215027,-0.031982422,-0.06738281,-0.011993408,0.05456543,-0.022262573,0.0049552917,0.0013217926,0.02658081,0.023086548,0.002363205,-0.0035514832,0.027328491,-0.03074646,-0.015106201,-0.03829956,0.037139893,-0.009132385,-0.03048706,0.011512756,-0.006965637,0.005996704,-0.0062789917,-0.028167725,0.0021839142,0.0038642883,-0.028274536,0.0046195984,-0.016281128,-0.01612854,0.056610107,-0.047424316,0.0056877136,-0.0013313293,-0.0069122314,0.008232117,0.01737976,0.030075073,-0.038238525,0.00013828278,0.031585693,0.029937744,0.043426514,-0.029815674,0.018707275,0.00003105402,-0.02558899,-0.00045228004,0.00022602081,-0.02154541,-0.051696777,-0.0113220215,0.004005432,-0.009384155,-0.00043535233,-0.0032863617,-0.020217896,-0.00007891655,0.014556885,-0.0031642914,-0.006877899,-0.022079468,-0.032104492,-0.0019054413,0.00005954504,0.00642395,-0.016708374,0.010681152,0.03503418,0.04547119,-0.015548706,0.0010156631,0.025634766,0.025604248,-0.003900528,0.0256958,0.03036499,0.015327454,0.0256958,0.015899658,0.030151367,-0.021820068,0.0001654625,-0.03439331,-0.019012451,0.0063209534,0.0028190613,0.0059051514,0.02658081,0.006072998,-0.009101868,-0.015655518,0.009902954,-0.027252197,-0.019226074,-0.0008444786,-0.017807007,0.011314392,-0.0034332275,-0.009017944,0.03491211,-0.023406982,0.045532227,0.0032215118,-0.012931824,0.043701172,0.024612427,0.006500244,-0.010864258,0.011787415,0.006385803,-0.015037537,0.008361816,0.017318726,0.034423828,0.013916016,-0.027252197,0.00035429,-0.0014801025,0.016586304,0.002298355,0.018081665,-0.016479492,0.014122009,-0.006729126,0.05279541,-0.042938232,0.035736084,0.006134033,0.015151978,-0.0048675537,0.011108398,-0.031143188,0.029037476,0.009918213,0.0038013458,0.051574707,-0.02671814,0.025390625,-0.02772522,-0.035095215,0.008460999,-0.00082826614,-0.024612427,0.00674057,-0.0074920654,-0.0034427643,0.029373169,0.0019187927,0.04135132,-0.037841797,0.0011091232,-0.021514893,0.011230469,-0.01689148,-0.045715332,0.0076026917,0.0058135986,-0.008079529,-0.012710571,-0.017044067,0.047729492,0.04272461,0.010559082,0.03012085,0.036071777,0.02645874,-0.024307251,-0.008926392,0.013786316,-0.0051231384,0.025543213,-0.026489258,0.039093018,0.034118652,0.027404785,0.046203613,0.032714844,0.023986816,0.019744873,0.014701843,0.007820129,-0.0018882751,0.0044822693,0.018585205,-0.011489868,0.024505615,-0.0043258667,-0.008995056,0.011077881,0.049804688,0.004928589,0.027252197,0.07574463,0.044281006,-0.011581421,0.026382446,-0.013092041,0.004886627,-0.029922485,-0.020248413,0.027389526,-0.02609253,0.04824829,0.008850098,0.022903442,0.008102417,0.016921997,-0.03225708,-0.01828003,0.031585693,0.0340271,-0.015716553,0.0046958923,-0.019805908,-0.0013504028,-0.017745972,-0.019927979,0.011138916,-0.001540184,0.009552002,-0.019561768,0.018676758,0.002483368,0.012741089,-0.009300232,-0.0016117096,-0.019683838,0.014213562,0.005405426,0.0067863464,0.027572632,0.0052871704,0.03677368,0.00157547,-0.015022278,0.01838684,0.031036377,0.000028967857,-0.011428833,0.00038003922,0.0112838745,0.038391113,0.05105591,-0.019760132,0.004878998,0.016662598,0.0069847107,-0.006095886,0.04058838,0.037200928,0.014137268,0.051818848,0.026412964,0.020553589,-0.028640747,-0.0024662018,-0.0033168793,0.0155181885,-0.00242424,-0.0077400208,0.013656616,-0.018829346,0.015144348,0.011253357,-0.008956909,0.03161621,0.026687622,-0.002254486,0.013694763,0.008102417,0.012390137,-0.0008597374,-0.0015687943,0.036132812,0.0014333725,0.006061554,0.014213562,0.06072998,-0.0025463104,0.04458618,-0.005012512,-0.02357483,-0.00091552734,-0.0033931732,-0.034729004,0.019332886,-0.0044021606,0.0077285767,-0.02911377,0.0036907196,0.027252197,-0.0030879974,0.014785767,0.023239136,0.0044517517,-0.004096985,0.016906738,0.0016698837,-0.0033836365,-0.017044067,-0.0071792603,0.026290894,0.029754639,0.009391785,-0.01876831,-0.0036392212,0.009407043,0.013328552,-0.026504517,-0.021194458,0.02053833,-0.019302368,-0.032318115,-0.0036315918,0.027023315,-0.011672974,0.03173828,-0.015419006,-0.01713562,-0.0056610107,0.015625,-0.019714355,-0.015014648,-0.018341064,0.01739502,0.0032997131,0.050231934,0.02746582,-0.012794495,0.023712158,-0.002571106,-0.023010254,0.0016937256,-0.013771057,0.027908325,-0.023361206,-0.01638794,-0.017150879,0.014556885,-0.013717651,-0.02999878,0.0051879883,-0.012565613,-0.026184082,-0.019821167,0.013160706,0.0036411285,0.009841919,0.0357666,0.0035247803,-0.025512695,0.06414795,-0.007511139,0.04309082,-0.029754639,0.00818634,0.04321289,0.033935547,0.044677734,0.046905518,0.002998352,-0.02229309,0.011932373,0.0049858093,0.039398193,0.008453369,-0.00019073486,-0.022750854,0.028015137,-0.008674622,0.041748047,0.008110046,-0.008918762,0.016433716,-0.0073432922,-0.0021877289,-0.002735138,0.009056091,0.020599365,0.042663574,-0.044555664,-0.004360199,-0.018081665,-0.00013124943,0.022445679,-0.007217407,-0.018325806,0.014984131,-0.011932373,0.013618469,-0.016967773,-0.007774353,0.020858765,0.024520874,-0.04650879,-0.009300232,-0.006996155,0.025939941,-0.016601562,0.01259613,0.028640747,-0.010948181,0.019714355,0.054260254,0.0055007935,0.031021118,-0.0023765564,0.037384033,0.024429321,0.0077590942,0.009552002,0.017074585,0.007133484,-0.011131287,0.006462097,0.030883789,-0.0043640137,0.004459381,0.008079529,0.0096588135,0.0006504059,0.015052795,-0.010269165,0.009292603,-0.007583618,-0.007419586,0.014945984,0.01864624,0.027328491,0.0016288757,0.013343811,-0.033691406,-0.0032615662,0.041534424,0.039886475,-0.04147339,0.040008545,0.008407593,-0.0052261353,-0.027404785,-0.015235901,0.0014028549,-0.016693115,0.021270752,0.042663574,-0.000049352646,0.008918762,-0.021820068,-0.008651733,0.030258179,0.03201294,0.010002136,-0.0024929047,0.01134491,0.020950317,-0.023834229,0.0042800903,-0.00096416473,-0.015960693,-0.011604309,0.015274048,-0.005870819,-0.022384644,0.014724731,-0.015777588,-0.0074806213,0.010566711,0.005306244,0.028121948,0.007003784,0.010406494,-0.006904602,0.01210022,-0.024841309,-0.02015686,-0.008255005,0.0435791,0.031097412,-0.007637024,0.00007200241,0.0032176971,0.031280518,0.023239136,0.022903442,-0.00076007843,0.024414062,0.033416748,-0.016067505,-0.03225708,0.030334473,-0.03704834,-0.03729248,0.004009247,-0.024414062,-0.010681152,0.01473999,0.014343262,-0.0031757355,-0.01386261,0.016815186,-0.0038375854,-0.03152466,0.021896362,-0.02456665,0.011627197,-0.042907715,-0.0043029785,0.014465332,-0.017105103,-0.034942627,-0.017089844,0.011993408,-0.012123108,-0.044647217,0.0107803345,0.008163452,-0.008399963,-0.014266968,0.0039863586,0.006801605,0.025802612,0.0024528503,-0.0010585785,0.008087158,0.042297363,-0.0010795593,0.0064849854,0.008430481,-0.0062217712,-0.02482605,0.020324707,0.003030777,-0.009994507,-0.0052375793,0.0055656433,0.035583496,0.020355225,0.00061941147,0.013809204,-0.015731812,-0.0077209473,-0.014930725,-0.0054969788,-0.01386261,0.023361206,0.017456055,0.016555786,-0.0035953522,0.042175293,-0.021499634,-0.029418945,0.013793945,0.040802002,0.004558563,0.026229858,0.004032135,-0.012054443,-0.028457642,-0.0079574585,-0.018447876,-0.00087070465,0.023590088,0.011978149,-0.004081726,0.0231781,-0.0011558533,-0.0025157928,-0.007583618,0.03955078,0.013702393,-0.00932312,0.042022705,0.03488159,0.0027370453,-0.01914978,0.004776001,0.037841797,0.049560547,-0.0054512024,0.010528564,0.00079631805,-0.0023860931,-0.017196655,0.022354126,0.017745972,-0.03225708,-0.045959473,-0.0033683777,-0.00021767616,0.02772522,-0.018295288,0.0063667297,-0.013847351,0.0035305023,0.00920105,-0.0067367554,-0.031707764,0.02658081,-0.009407043,-0.004562378,-0.0052223206,-0.0010137558,0.0259552,-0.008491516,-0.014266968,-0.016525269,-0.020858765,-0.0013713837,-0.022232056,0.009277344,0.009346008,-0.005680084,-0.018493652,-0.007675171,-0.013900757,0.00047445297,0.004928589,-0.00957489,-0.00080394745,0.026229858,0.020629883,0.0132369995,0.00029540062,-0.019134521,-0.009140015,0.008964539,0.007217407,0.014854431,-0.030303955,0.039276123,0.01159668,-0.0008649826,-0.02281189,-0.000007987022,0.038024902,-0.023513794,-0.008056641,-0.0036125183,-0.002494812,0.047058105,-0.03173828,-0.017211914,0.0012893677,-0.012069702,-0.036712646,-0.010765076,0.019012451,0.022537231,-0.017669678,0.023345947,-0.021621704,-0.02885437,0.0032081604,0.004875183,-0.011940002,0.012382507,0.02973938,-0.0022678375,-0.015533447,0.0032291412,-0.021392822,-0.04849243,0.005203247,0.014282227,-0.010261536,-0.0028514862,0.02357483,0.014923096,0.022705078,0.03387451,0.015670776,0.017913818,0.01386261,0.03012085,0.02420044,0.06359863,-0.0026683807,-0.0234375,0.02406311,0.0012559891,-0.015853882,0.012756348,-0.003112793,0.0010948181,-0.015670776,-0.0016040802,0.023651123,0.011657715,-0.00088596344,-0.0051956177,-0.010795593,0.008575439,-0.024261475,-0.00097322464,-0.024108887,0.007205963,0.031204224,0.010940552,-0.0041389465,-0.004966736,-0.02357483,0.026412964,0.03237915,-0.0029087067,-0.041625977,-0.0158844,-0.018081665,0.012817383,0.011299133,0.0128479,-0.016220093,-0.014465332,-0.008262634,-0.009437561,0.010276794,-0.0063552856,0.015602112,0.004333496,0.017745972,0.002506256,0.029159546,-0.017669678,-0.003528595,-0.009292603,0.004196167,0.03125,0.013793945,-0.016555786,0.013191223,0.01727295,-0.023757935,0.04055786,-0.010116577,0.010597229,-0.032348633,0.0021877289,-0.061462402,-0.008148193,-0.007713318,-0.0009794235],"createdAt":"2026-04-21T18:32:19.494Z","updatedAt":"2026-04-23T19:02:14.081Z","lastSeenAt":"2026-04-23T19:02:14.081Z","tsv":"'/api/v1/hr/documents/4':156 '0.02':85,135 '000':78 '0x8335':62 '20':77 '2913':63 '4':40 '402':194 '6':88 'Base network API' 'HR document API' 'accept':46,200 'access':185 'actual':223 'advertis':169 'ai/ml':106 'among':167 'amount':72 'analysi':109 'analyt':105 'api':102,140,170,184 'array':201 'base':8,22,57,79 'behind':41 'beyond':180 'broader':95 'call':75 'captur':192 'categori':171 'challeng':189 'classif':111 'commit':148 'confirm':202 'content':175 'contract':61 'convers':128 'crawl':219 'data':104 'decim':89 'detail':210 'document':5,19,36,38,211 'embed':112 'endpoint':6,20,30,131,152,204,221 'equal':84 'estim':122 'exact':67,174 'exact-pay':66 'exampl':213 'exchang':117 'explicit':159 'feed':116 'financ':113 'form':199 'found':216 'gas':121 'gate':3,17 'generat':129 'generic':182 'geocod':126 'host':93 'howev':149 'hr':4,18,35 'hr-document' 'http':193 'id':39 'infer':107 'infrastructur':124 'json':51 'json-response' 'key':141 'label':186 'land':165 'limit':144 'list':133,154 'live':206 'lowpaymentfee' 'lowpaymentfee.com':32,92 'maximum':71 'mention':160 'minimum':147 'network':58 'no-api-key' 'openapi':208 'page':166 'pay':10,24,99 'pay-per-call API' 'pay-per-request':9,23,98 'payload':225 'payment':52,68,227 'paywal':44 'per':11,25,74,100,136 'post':47 'premium':183 'premium document access' 'price':115 'provid':91,163 'purpos':177 'quot':120 'rate':118,143 'request':12,26,48,101,137 'requir':73 'resourc':37 'respons':214,224 'return':50 'schema':209 'scheme':69 'sentiment':108 'serv':33 'settl':54 'span':103 'specif':151 'success':191 'suit':96 'summar':110 'token':119 'unclear':179 'unit':80 'unknown':229 'usdc':14,28,60,82,86 'usdc-base' 'use':59,87 'util':125 'valid':127 'web3':114 'well':198 'well-form':197 'x402':2,16,43,188 'x402 USDC endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"7747e336-1ce2-4e8c-9e99-ecf969b0570a","listingId":"4a2dc083-fad9-401d-85c7-808051d38a38","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/hr/documents/4","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:19.494Z"}],"sources":[{"listingId":"4a2dc083-fad9-401d-85c7-808051d38a38","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/hr/documents/4","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:19.494Z","lastSeenAt":"2026-04-23T19:02:14.081Z"}],"details":{"listingId":"4a2dc083-fad9-401d-85c7-808051d38a38","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/4 \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge returns HTTP 402 with maxAmountRequired 20000 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/4"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/hr/documents/4"},{"claim":"All listed APIs 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":"Provider advertises Data & Analytics, AI & ML, Finance & Web3, and Infrastructure API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving HR document data on-demand with micropayment","Agent-driven document fetching without API key management","Programmatic access to gated document resources via x402 protocol"],"bestFor":["Agents needing keyless, pay-per-request document access","Developers experimenting with x402 payment protocol on Base","Low-friction access to gated content without subscriptions"],"notFor":["Bulk document retrieval at scale (no batch endpoint documented)","Users who need detailed schema or documentation before integrating","Non-crypto users who cannot pay with USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:10.441Z"},"updatedAt":"2026-04-23T19:02:14.081Z"}}