{"id":"f1905ec9-f981-4c42-81ca-0cc773806eb2","shortId":"e2qHTg","kind":"x402","title":"x402-gated premium API endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated premium API endpoint on Base, pay-per-request with USDC.","description":"This endpoint at `/api/v1/benefits/87` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities. The specific endpoint is labeled \"Premium API Access\" and is gated behind an x402 payment challenge requiring USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals), settled on-chain to a designated wallet address.\n\nThe platform advertises a simple pricing model: $0.02 per request across all endpoints, with no API keys, no rate limits, no minimums, and instant access. However, the `/api/v1/benefits/87` endpoint does not clearly map to any of the named API categories listed on the homepage (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no additional documentation or schema details.\n\nBecause there is no OpenAPI spec, no request/response schema, and no documentation describing what this specific endpoint actually returns, the exact functionality behind \"Premium API Access\" at this path remains unclear. The endpoint is confirmed live (returns a valid 402 challenge), but prospective callers should be aware that there is essentially no public documentation explaining the input parameters or output format.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response"],"categories":["api","misc"],"synonyms":["premium API","lowpaymentfee","x402 API","pay-per-call API","USDC API","Base network API","micropayment API"],"warnings":["No documentation available — docs, API, pricing, and README pages all return only 'Connect wallet' with no content.","The endpoint path '/api/v1/benefits/87' does not correspond to any named API listed on the homepage; its actual functionality is unknown.","No request or response schema is published; callers cannot know what to send or what to expect back.","No OpenAPI or ai-plugin manifest found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/benefits/87","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/benefits/87","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 OpenAPI spec, no request/response schema, no documentation, and the specific purpose of '/api/v1/benefits/87' is undocumented. The listing is effectively a stub with only pricing and protocol details available.","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":"2026-04-19T17:50:38.876Z","embedding":[-0.019622803,-0.030685425,0.050964355,0.018997192,0.02130127,-0.018035889,-0.02078247,0.041778564,0.07714844,-0.07183838,0.041015625,-0.055999756,-0.026290894,-0.04486084,-0.034332275,0.004825592,-0.018188477,0.013839722,-0.052703857,0.0413208,0.044311523,-0.01184082,-0.015686035,0.041931152,0.004436493,-0.020629883,-0.024124146,-0.013801575,-0.0036373138,-0.024139404,0.025054932,-0.028045654,-0.013504028,0.0065345764,-0.007434845,-0.015274048,0.010818481,0.045898438,0.034210205,-0.0028743744,0.00819397,-0.058532715,-0.02104187,0.0004901886,-0.041503906,-0.008705139,0.012817383,-0.031188965,-0.01928711,0.0062179565,-0.03036499,0.0047035217,-0.010414124,-0.0020694733,0.013122559,0.0010662079,-0.014305115,-0.0129776,0.0016765594,0.011703491,-0.019195557,-0.07067871,-0.011833191,0.008842468,0.01222229,0.032073975,-0.010002136,0.046447754,0.008728027,0.038848877,0.054229736,0.06274414,0.021728516,0.017227173,0.0023155212,-0.010047913,-0.0015869141,0.054229736,-0.01876831,-0.006752014,-0.024291992,-0.010673523,-0.04458618,-0.016784668,-0.010818481,-0.03652954,-0.025131226,0.0018386841,-0.03137207,0.035858154,-0.060516357,-0.0067214966,-0.0146865845,0.0067367554,-0.00006186962,-0.016830444,-0.011253357,0.020370483,-0.009094238,0.012145996,0.012001038,-0.05114746,0.03491211,0.013946533,0.05429077,0.033416748,0.012786865,0.029266357,-0.005756378,-0.030792236,-0.007575989,0.005142212,-0.010040283,-0.00017523766,0.0075035095,0.012176514,-0.037506104,0.012756348,-0.021591187,0.031066895,-0.050964355,0.050354004,0.019210815,-0.029449463,0.01727295,-0.04107666,0.0027046204,0.017028809,-0.036895752,-0.0033798218,0.01878357,0.008934021,0.03286743,-0.017303467,-0.03564453,0.006919861,-0.029022217,-0.02609253,-0.042999268,-0.02381897,0.038848877,-0.02709961,0.033233643,0.016098022,-0.10632324,-0.006958008,-0.041748047,0.014808655,-0.0446167,0.010734558,-0.014228821,0.026565552,-0.014656067,-0.026489258,-0.020004272,-0.015960693,-0.0067329407,0.051696777,-0.0062828064,0.04171753,0.008880615,0.035614014,0.014923096,0.014633179,0.030975342,0.046081543,-0.00021314621,-0.072021484,-0.08874512,-0.03387451,0.00088500977,-0.008491516,-0.04901123,0.0048713684,-0.00039625168,-0.0715332,-0.017059326,-0.02507019,0.00009441376,-0.039276123,-0.0013914108,-0.020599365,-0.004386902,-0.02142334,-0.08062744,-0.021224976,-0.026916504,0.057403564,0.016586304,-0.0012283325,0.03125,0.0025367737,0.06854248,0.018829346,-0.026763916,-0.036743164,0.015914917,-0.027709961,0.03488159,0.0060691833,-0.0061683655,-0.047332764,0.0473938,0.05126953,0.011550903,-0.008628845,-0.0021076202,-0.0418396,-0.038146973,-0.039489746,0.012619019,0.0039367676,-0.0016746521,0.05206299,-0.013618469,-0.041168213,-0.016601562,0.009391785,0.034973145,0.060821533,0.004501343,0.0027599335,-0.00017619133,0.020187378,-0.02885437,0.040405273,0.029830933,0.02796936,-0.032714844,-0.009628296,0.0039787292,0.027755737,-0.026306152,-0.005886078,-0.01927185,0.018997192,-0.0056877136,0.0084991455,0.04067993,-0.028778076,-0.021560669,-0.030517578,-0.020629883,0.027069092,0.015899658,-0.035308838,-0.034057617,-0.068847656,0.031311035,0.06500244,0.026916504,0.01386261,0.0073165894,-0.013404846,-0.023345947,-0.06088257,0.03857422,0.06652832,-0.019439697,-0.011962891,0.024902344,-0.02407837,-0.014160156,-0.025970459,-0.017822266,-0.026931763,-0.018493652,0.003704071,-0.04425049,-0.0045166016,0.017028809,0.037200928,0.044555664,-0.010009766,-0.04827881,-0.025253296,0.0074768066,0.010040283,-0.02229309,-0.01197052,-0.016021729,0.023254395,0.02456665,-0.014968872,0.033050537,0.0035972595,0.018585205,-0.00093126297,-0.020523071,-0.019256592,-0.03744507,0.009986877,0.00434494,-0.07147217,0.01108551,0.008781433,0.06915283,-0.039398193,0.040374756,-0.005607605,0.019073486,0.06274414,-0.020065308,-0.042266846,0.013313293,0.022857666,0.041137695,0.030044556,0.0004541874,-0.006793976,-0.007896423,0.04348755,-0.0119018555,-0.0096588135,-0.002035141,0.018814087,0.039001465,0.0030403137,-0.048980713,-0.014228821,-0.0056381226,-0.02923584,0.019607544,-0.022766113,0.024017334,-0.0158844,0.011932373,-0.025619507,0.00077819824,-0.03491211,0.010284424,-0.016799927,-0.021606445,-0.0059890747,-0.01928711,0.028701782,0.019134521,-0.0036888123,-0.018249512,0.020767212,0.017562866,-0.008979797,-0.042663574,-0.028030396,-0.0236969,0.014389038,0.025863647,0.029174805,0.014778137,0.03945923,-0.041748047,0.0131073,0.020492554,0.02204895,0.03479004,-0.01550293,0.014808655,-0.060668945,-0.05114746,-0.022277832,-0.04876709,0.024276733,0.0015707016,0.020736694,0.0440979,0.000279665,-0.018234253,-0.047698975,0.046875,-0.040802002,0.0025501251,0.03060913,-0.0047073364,-0.027496338,-0.0016489029,0.01184845,0.009216309,0.0234375,0.008041382,0.014762878,0.06518555,0.048095703,-0.0051879883,0.016021729,0.011375427,0.022766113,0.00071144104,-0.026016235,-0.031143188,-0.025619507,0.02861023,-0.008483887,-0.02355957,-0.07556152,0.03036499,0.02923584,0.05810547,0.004524231,0.025848389,0.03250122,-0.013168335,0.0020427704,-0.03643799,-0.021362305,-0.023757935,-0.04559326,0.018707275,-0.018081665,0.007080078,-0.021499634,0.039215088,0.0011138916,0.019607544,-0.039215088,0.06768799,0.0017080307,-0.0073013306,0.028320312,0.007671356,0.05105591,0.06500244,-0.055999756,0.025466919,0.032318115,-0.03869629,0.0034599304,0.048095703,-0.014160156,-0.013023376,-0.06951904,-0.0368042,0.010284424,0.005504608,-0.061920166,-0.0018720627,-0.0029945374,0.022827148,0.018478394,-0.030822754,-0.025238037,0.00030899048,-0.019210815,-0.05819702,-0.012031555,-0.03237915,0.03262329,0.054595947,-0.024276733,-0.018508911,-0.0025939941,-0.013755798,0.007080078,0.014022827,-0.011550903,-0.009895325,-0.030975342,0.018554688,0.011276245,0.013801575,0.021194458,0.026672363,0.028396606,0.017303467,0.04916382,0.017150879,-0.03050232,-0.059692383,0.007926941,-0.044830322,-0.00022947788,-0.0027332306,-0.014633179,0.0069389343,-0.013153076,-0.035095215,-0.027618408,0.0033683777,-0.036590576,0.016693115,0.029388428,-0.040008545,-0.020202637,-0.043273926,-0.013877869,0.022094727,0.076049805,0.032043457,-0.0005078316,-0.06964111,-0.012619019,0.032348633,0.0008993149,0.015686035,-0.015586853,-0.015304565,-0.017227173,-0.033447266,-0.027542114,-0.027053833,0.032226562,-0.0014476776,-0.022445679,0.024749756,-0.02104187,0.013656616,0.015686035,0.0071144104,0.044921875,-0.020446777,-0.007068634,-0.03930664,0.027923584,-0.006225586,-0.014160156,-0.042663574,0.048309326,0.014190674,0.032714844,-0.04107666,0.0101623535,-0.0059051514,0.0054092407,0.010238647,-0.02178955,-0.012413025,0.01309967,-0.042907715,-0.08062744,0.038391113,-0.009635925,0.022766113,-0.00333786,0.011962891,0.029724121,0.0004684925,-0.0037555695,0.038482666,-0.030151367,-0.0068511963,-0.027938843,-0.03062439,-0.011917114,-0.00031352043,-0.0021419525,0.018920898,-0.0107421875,0.024230957,-0.0079193115,-0.015930176,0.036376953,0.0045394897,0.003704071,0.040039062,0.01171875,0.015434265,0.041656494,0.0052337646,-0.030395508,0.026977539,0.00085783005,0.005405426,-0.0063667297,0.038848877,0.020202637,-0.0184021,-0.013969421,0.001162529,-0.016494751,-0.012771606,-0.0054855347,-0.0055770874,0.04144287,0.0102005005,-0.041656494,0.046844482,0.010101318,-0.023742676,-0.007396698,0.020004272,0.027709961,-0.049591064,0.013496399,0.0138549805,0.058044434,-0.032928467,0.003818512,0.017333984,0.034057617,0.021072388,0.017486572,-0.018447876,-0.0008583069,-0.018600464,0.021499634,0.0018053055,-0.015960693,0.0101623535,-0.002735138,0.027893066,0.035339355,0.034851074,-0.025909424,-0.010475159,-0.007167816,-0.0044403076,-0.011924744,0.018829346,0.029388428,0.013397217,-0.014640808,0.03756714,0.02519226,-0.035888672,-0.011795044,-0.02029419,0.043273926,-0.029769897,-0.0061531067,0.019561768,-0.0011882782,0.03100586,-0.048461914,-0.0020866394,0.012084961,0.026977539,-0.008308411,-0.04724121,-0.02861023,0.013710022,0.027893066,0.0056037903,0.0030708313,0.032348633,-0.004989624,0.017562866,0.020751953,0.0033302307,-0.016601562,-0.022598267,-0.04586792,-0.012786865,0.004611969,-0.007522583,-0.021133423,0.008331299,-0.03744507,-0.02848816,0.002948761,-0.01828003,-0.0019006729,-0.0050697327,0.014533997,0.020645142,0.0065841675,0.01134491,-0.016464233,-0.020523071,0.023483276,0.010635376,0.026687622,-0.048553467,0.01171875,-0.019897461,-0.00017511845,-0.016799927,0.02027893,0.014076233,0.020370483,0.007751465,0.017715454,-0.04373169,0.035705566,-0.015220642,0.0032043457,0.021850586,-0.043670654,-0.0027332306,-0.022216797,-0.023864746,0.027038574,-0.019546509,-0.0036449432,-0.032043457,-0.041046143,-0.01701355,-0.041046143,0.027862549,0.036468506,0.037139893,-0.024780273,0.0013017654,0.0013580322,-0.0050811768,-0.010864258,0.0027046204,-0.00207901,0.025817871,0.03869629,0.009407043,-0.036010742,-0.024871826,-0.004119873,-0.010116577,-0.045166016,-0.03652954,-0.016281128,0.019088745,-0.010414124,-0.0008406639,-0.020217896,-0.0107421875,0.0032844543,-0.041900635,0.005683899,0.016418457,0.017410278,0.012718201,-0.025054932,0.00623703,0.01576233,-0.021194458,0.023101807,-0.0031776428,-0.0011386871,-0.041412354,0.00819397,0.037078857,0.017837524,-0.011146545,-0.008026123,0.00843811,-0.019729614,-0.051818848,-0.0019702911,-0.0093688965,0.0021076202,0.01171875,-0.013122559,-0.054779053,-0.0063209534,-0.009635925,0.008491516,0.008659363,0.013687134,0.02532959,0.0014791489,0.00831604,-0.010154724,-0.00007778406,-0.04324341,0.016464233,0.011627197,0.0026512146,0.011497498,0.04196167,0.02015686,-0.0070343018,0.006679535,0.0016450882,0.010154724,-0.027359009,0.012313843,-0.015304565,0.009300232,-0.0055732727,-0.01574707,-0.025802612,0.014022827,0.085754395,-0.008148193,0.007423401,-0.019927979,-0.008422852,0.012786865,0.025863647,-0.049743652,-0.00856781,-0.045837402,0.019363403,-0.0065345764,0.02519226,0.013969421,0.024230957,-0.042053223,-0.05407715,-0.0044021606,0.021835327,-0.0027866364,-0.060577393,-0.007896423,-0.044311523,-0.008232117,-0.0090789795,-0.01398468,0.006828308,-0.0016107559,-0.0024414062,-0.095825195,0.006084442,0.05026245,0.012641907,0.015396118,-0.035461426,0.019729614,0.02418518,-0.024734497,-0.025039673,0.024246216,-0.03237915,-0.018859863,-0.028503418,0.040252686,-0.020019531,-0.03591919,0.019927979,0.007045746,0.013465881,-0.017486572,0.012924194,-0.007843018,0.012718201,-0.008682251,0.024642944,-0.016815186,-0.02192688,0.019165039,-0.05001831,0.01838684,0.015731812,0.0006341934,0.008132935,0.027008057,0.022460938,-0.039855957,-0.022079468,0.043914795,0.012863159,0.0390625,-0.041015625,0.049438477,0.012748718,-0.015075684,0.02684021,-0.013710022,-0.023361206,-0.055023193,-0.02645874,0.0066871643,0.015357971,0.018173218,-0.019180298,-0.0077171326,0.022079468,-0.007881165,0.009490967,-0.012214661,-0.017440796,-0.011886597,0.009498596,0.0076522827,0.0045814514,-0.0046463013,0.027145386,0.026794434,0.042236328,0.007888794,-0.009391785,0.014953613,0.0154800415,-0.022369385,0.009361267,0.0052833557,0.015838623,0.01197052,0.017700195,0.016418457,-0.029586792,-0.0075569153,-0.017745972,-0.01701355,0.011512756,0.0045661926,-0.007583618,-0.0027332306,0.0006246567,0.008720398,-0.042816162,0.011878967,-0.029800415,-0.04043579,0.00055122375,-0.015274048,0.0017175674,0.0079422,0.0012760162,0.009750366,0.0017786026,0.042785645,0.0022392273,-0.006778717,0.017410278,0.024673462,0.00869751,-0.02368164,0.0022392273,-0.006877899,-0.012161255,0.010353088,-0.0181427,0.0048294067,0.031066895,-0.016204834,0.0038661957,-0.00566864,0.021743774,-0.004550934,0.01826477,-0.0015592575,0.004108429,-0.018035889,0.037719727,-0.04736328,0.0058898926,0.025772095,0.01133728,0.0015640259,-0.024139404,-0.037994385,0.018829346,0.005680084,-0.022979736,0.03756714,-0.013542175,0.014297485,-0.01889038,-0.011627197,-0.0016479492,-0.035980225,-0.017807007,0.038238525,-0.002981186,-0.00083875656,0.023406982,-0.03086853,0.03137207,-0.044128418,0.014335632,0.0055160522,-0.00983429,-0.01612854,-0.03451538,-0.010383606,-0.0040664673,-0.012992859,-0.0046081543,0.0076522827,0.049926758,0.038116455,0.017150879,0.030899048,-0.0036449432,-0.0033798218,-0.047302246,-0.021377563,0.0020980835,-0.031341553,0.02027893,-0.04269409,0.042022705,0.052947998,-0.012397766,0.030227661,0.045837402,0.026306152,0.010635376,0.012245178,-0.000100791454,0.014762878,-0.003698349,0.043640137,0.0033512115,0.04510498,-0.018661499,0.023468018,0.004798889,0.026535034,-0.017593384,0.02571106,0.07733154,0.017364502,0.0075569153,0.02670288,0.0008983612,-0.008850098,-0.009552002,-0.02456665,0.059265137,-0.0009112358,0.056854248,0.04019165,0.009803772,-0.016418457,0.019592285,-0.015090942,-0.03842163,0.05722046,0.013465881,-0.017929077,0.0051193237,-0.014862061,0.0016927719,-0.05090332,-0.023162842,0.026947021,0.0008068085,0.013580322,-0.007972717,-0.0038852692,-0.017196655,0.034698486,0.016693115,0.019195557,-0.017150879,0.028701782,0.031082153,0.011238098,0.018203735,0.00020241737,0.021591187,-0.030578613,-0.01222229,0.009857178,0.0158844,-0.00894165,-0.0024528503,0.009681702,0.025421143,0.055999756,0.02947998,-0.025756836,-0.0124053955,0.028320312,0.014457703,-0.0010614395,0.042053223,0.03427124,0.0026626587,0.035888672,0.039398193,0.020187378,-0.036254883,0.012702942,-0.006954193,0.018676758,0.0014944077,-0.019699097,0.0010662079,-0.010513306,0.0054855347,-0.0010156631,-0.0031490326,0.027145386,0.030334473,0.0035133362,0.00178051,-0.011505127,0.010070801,0.0002989769,0.008743286,0.007045746,-0.013160706,0.01826477,0.0057373047,0.02810669,-0.012229919,0.025924683,-0.008178711,-0.01550293,0.0007677078,0.013137817,-0.03945923,0.0002090931,-0.007434845,0.0025844574,-0.04071045,0.014175415,0.009628296,-0.004486084,0.03137207,0.010597229,0.005001068,0.002960205,0.019805908,0.017608643,0.00028800964,-0.017837524,-0.020370483,0.027114868,0.040100098,-0.0056877136,0.0020046234,0.0023059845,0.0025939941,0.011070251,-0.0017614365,-0.008224487,-0.014137268,-0.015777588,-0.052093506,0.008659363,0.04171753,0.02128601,0.032592773,-0.0017881393,-0.009124756,-0.006832123,0.015792847,0.010612488,0.0020580292,-0.0023765564,0.014724731,-0.0067253113,0.0541687,0.039916992,0.001045227,0.019577026,-0.029159546,-0.025558472,0.0023670197,-0.01322937,0.022338867,-0.0010318756,0.009155273,-0.015060425,0.022766113,-0.023147583,-0.041015625,0.006175995,-0.027572632,-0.007575989,-0.03439331,0.013946533,0.002916336,0.022735596,0.035217285,0.021072388,-0.027297974,0.06958008,-0.007965088,0.055877686,-0.020233154,-0.0003683567,0.048980713,0.039367676,0.034454346,0.02571106,0.011459351,-0.023773193,0.0026073456,0.033599854,0.016723633,0.01651001,0.00045013428,-0.023651123,0.036468506,-0.003479004,0.022155762,-0.018951416,-0.002412796,0.019958496,-0.011123657,-0.0016880035,0.0004017353,0.0012655258,0.020706177,0.040100098,-0.033172607,-0.011299133,-0.017303467,-0.007095337,0.032592773,-0.0013504028,0.008636475,0.0004925728,-0.019104004,0.022659302,-0.028182983,-0.009719849,-0.0009288788,0.028961182,-0.042510986,-0.007896423,0.0030765533,0.011009216,-0.036224365,0.021575928,0.016281128,-0.00730896,0.014335632,0.035369873,-0.0060539246,0.05307007,-0.010543823,0.028778076,0.032928467,0.0048675537,-0.027755737,0.0073623657,0.0055618286,-0.01725769,0.006580353,0.036071777,-0.0077934265,0.013092041,0.0068626404,-0.032348633,0.003955841,0.006252289,-0.00016319752,0.0048332214,-0.004425049,-0.015808105,0.0041542053,0.011077881,0.010070801,0.009422302,0.0046653748,-0.019958496,0.012168884,0.043121338,0.0017147064,-0.040222168,0.008377075,0.011260986,0.015571594,-0.040802002,-0.02017212,-0.018310547,-0.019851685,0.010360718,0.03744507,-0.00036597252,0.009994507,-0.016448975,-0.007926941,0.014251709,0.013305664,0.025421143,0.0035305023,0.0017633438,0.022735596,-0.027938843,0.011352539,-0.005821228,-0.0070114136,0.007949829,0.009407043,-0.0039482117,-0.023544312,0.011146545,-0.0033721924,0.01449585,0.011108398,-0.009178162,0.036346436,-0.024459839,-0.005657196,0.0044670105,0.0090789795,-0.017166138,-0.024169922,-0.02796936,0.02230835,0.054748535,-0.007293701,-0.012046814,0.0034503937,0.018814087,0.016647339,0.039855957,0.0028495789,0.03286743,0.029769897,-0.025421143,-0.032562256,0.01751709,-0.0046691895,-0.03186035,0.024108887,-0.011108398,-0.0062065125,0.022354126,0.019714355,-0.004173279,-0.017791748,-0.024002075,-0.0029582977,-0.017105103,0.021560669,-0.016494751,0.022216797,-0.020614624,-0.008071899,0.017181396,-0.015556335,-0.03942871,-0.03475952,-0.015380859,-0.013427734,-0.051605225,0.0044555664,-0.023361206,0.0066833496,-0.016479492,0.0023479462,-0.016525269,0.038146973,-0.00088500977,0.0054893494,0.017623901,0.03543091,0.007843018,0.021743774,0.022521973,-0.013809204,-0.02796936,-0.011886597,-0.01701355,-0.0088272095,0.011909485,-0.01108551,0.03152466,0.0018444061,-0.0038585663,0.010505676,-0.0059127808,-0.013183594,-0.00157547,-0.03744507,-0.012458801,0.016830444,0.03387451,-0.0074691772,-0.019134521,0.049194336,-0.020248413,-0.019836426,0.021850586,0.037322998,0.013206482,0.0340271,-0.01398468,-0.012962341,-0.01838684,0.0061950684,-0.01133728,0.015808105,0.01878357,0.008682251,-0.009681702,-0.002840042,0.006336212,-0.001045227,-0.013771057,0.019348145,0.0051879883,-0.01361084,0.03515625,0.019241333,0.0052108765,-0.02229309,-0.010269165,0.019454956,0.04248047,0.012107849,0.005744934,0.00078105927,0.0149383545,-0.015037537,0.008628845,0.021224976,-0.02267456,-0.025238037,-0.0181427,-0.022033691,0.021743774,-0.0011892319,0.014526367,0.0034923553,0.017059326,-0.02810669,-0.014266968,-0.015197754,0.03086853,-0.0033874512,-0.022369385,0.0021343231,-0.0051460266,0.017105103,-0.028427124,-0.0065231323,-0.04751587,-0.01789856,-0.013664246,-0.03286743,0.0063209534,0.005493164,-0.016479492,0.006958008,-0.010253906,-0.008705139,0.0028457642,0.03302002,-0.01134491,-0.01209259,0.024780273,0.014404297,-0.023208618,0.010635376,-0.013191223,-0.014122009,0.02029419,0.0042915344,0.009811401,-0.024642944,0.034973145,0.013008118,-0.009300232,0.026870728,0.005191803,0.026657104,-0.01864624,-0.009223938,-0.0031642914,-0.010818481,0.018920898,-0.020462036,-0.034973145,0.008346558,-0.013114929,-0.043762207,0.012550354,0.03375244,0.027404785,-0.014533997,0.041900635,-0.011497498,-0.01374054,0.012763977,0.0071144104,-0.020812988,0.0030593872,0.04171753,0.0044822693,-0.013008118,0.005771637,-0.010467529,-0.016921997,-0.010597229,0.016616821,-0.019958496,-0.00970459,0.021072388,0.012672424,0.043945312,0.01675415,0.017913818,0.022766113,0.013038635,0.027755737,0.0033798218,0.049835205,0.016677856,-0.04046631,0.0107803345,0.004005432,-0.00970459,-0.016708374,-0.0071487427,-0.0012674332,-0.021270752,0.012451172,0.005218506,0.032196045,-0.010002136,0.003522873,-0.018249512,0.0012702942,-0.029632568,-0.009292603,-0.019821167,0.002653122,0.042175293,0.018829346,0.006790161,0.005771637,-0.01838684,0.017990112,0.041381836,-0.013465881,-0.030929565,-0.0033874512,-0.0018806458,0.00095033646,-0.0024108887,0.010932922,-0.021408081,-0.014602661,-0.009338379,-0.020233154,0.0046958923,-0.00021016598,0.017623901,0.0020370483,-0.0052986145,-0.007484436,0.026626587,0.0045928955,0.012496948,0.006843567,0.011253357,0.028701782,0.033569336,-0.013916016,0.016220093,0.02458191,-0.03225708,0.04660034,-0.015075684,0.023239136,-0.025512695,0.0042800903,-0.03540039,0.006252289,-0.010856628,0.011482239],"createdAt":"2026-04-18T20:29:38.931Z","updatedAt":"2026-04-22T01:01:59.360Z","lastSeenAt":"2026-04-22T01:01:59.360Z","tsv":"'/api/v1/benefits/87':32,136 '0.02':90,116 '000':92 '20':91 '402':221 '6':98 'Base network API' 'USDC API' 'access':70,133,207 'across':119 'actual':199 'addit':177 'address':108 'advertis':111 'ai':155 'ai/ml':55 'analyt':54,154 'api':5,19,51,69,124,147,163,206 'awar':228 'base':8,22,83,93 'base-network' 'behind':74,204 'call':50 'caller':225 'categori':148 'chain':103 'challeng':78,222 'clear':140 'collect':42 'confirm':216 'connect':172 'crawl':161 'data':53,59,153 'decim':99 'describ':194 'design':106 'detail':181 'doc':162 'document':178,193,235 'endpoint':6,20,30,65,121,137,198,214 'essenti':232 'exact':202 'explain':236 'financ':57,157 'format':242 'function':203 'gate':3,17,73 'homepag':152 'howev':134 'infer':56 'infrastructur':61,159 'input':238 'instant':132 'json-response' 'key':125 'label':67 'limit':128 'list':149 'live':217 'lowpaymentfee' 'lowpaymentfee.com':37 'map':141 'micropayment API' 'minimum':130 'ml':156 'model':115 'name':146 'network':84 'offer':40 'on-chain':101 'openapi':186 'output':241 'page':167 'paramet':239 'part':34 'path':210 'pay':10,24,48 'pay-per-cal':47 'pay-per-call API' 'pay-per-request':9,23 'payment':77 'per':11,25,49,87,117 'platform':38,110 'premium':4,18,68,205 'premium API' 'price':86,114,164 'prompt':174 'prospect':224 'protocol':46 'public':234 'rate':127 'readm':166 'remain':211 'request':12,26,88,118 'request/response':189 'requir':79 'return':169,200,218 'schema':180,190 'settl':100 'simpl':113 'span':52 'spec':187 'specif':64,197 'unclear':212 'unit':94 'usdc':14,28,80,96 'usdc-settlement' 'util':62 'valid':220 'wallet':107,173 'web3':58,158 'x402':2,16,45,76 'x402 API' 'x402-gated':1,15 'x402-payment' 'x402-protocol':44","prices":[{"id":"43bef7ac-bb5a-41b7-a52d-4032e52d9379","listingId":"f1905ec9-f981-4c42-81ca-0cc773806eb2","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/benefits/87","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T20:29:38.931Z"}],"sources":[{"listingId":"f1905ec9-f981-4c42-81ca-0cc773806eb2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/benefits/87","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T20:29:38.931Z","lastSeenAt":"2026-04-22T01:01:59.360Z"}],"details":{"listingId":"f1905ec9-f981-4c42-81ca-0cc773806eb2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/benefits/87 \\\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 402 challenge requiring USDC on Base network with maxAmountRequired of 20000 base units (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/benefits/87"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, no minimums","source_url":"https://lowpaymentfee.com"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com"},{"claim":"Available API categories include Data & Analytics, AI & ML, Finance & Web3, and Infrastructure","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing a gated premium API resource via x402 micropayment on Base","Programmatic pay-per-request API consumption without API keys","Agent-driven API calls settled in USDC on-chain"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that can settle USDC payments on Base L2","Users who want keyless, pay-as-you-go API access"],"notFor":["Users who need detailed API documentation before calling","Applications requiring guaranteed SLAs or support contracts","Users without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:25.406Z"},"updatedAt":"2026-04-22T01:01:59.360Z"}}