{"id":"166832fc-664c-4063-83ed-85900ad5707a","shortId":"q6aDK2","kind":"x402","title":"Pay-per-call lab results endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call lab results endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com serves \"lab results\" data at the path `/api/v1/lab/results/70`. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.\n\nPayment is settled on the Base network using USDC (contract `0x8335…2913`) via the x402 exact-payment scheme. The probe confirmed the endpoint is live, returning a proper 402 challenge with `maxAmountRequired` of 20,000 base units (USDC has 6 decimals, so this equals $0.02). The endpoint accepts HTTP POST requests and returns `application/json` responses.\n\nThe specific resource at `/api/v1/lab/results/70` is labeled \"Premium API Access\" but no further documentation describes the shape of the response payload or what \"lab results\" refers to. The provider's landing page lists this endpoint's category peers but does not include this particular path in its public catalog. Without an OpenAPI spec, response schema, or worked examples, the exact data returned remains unclear. Agents should treat this as an opaque JSON endpoint until the provider publishes more documentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-call","json-response","no-api-key","lab-results"],"categories":["data"],"synonyms":["lab results API","x402 paid endpoint","USDC micropayment API","lowpaymentfee","Base network API","pay-per-request data","402 payment endpoint"],"warnings":["No OpenAPI or response schema available — the shape of the returned data is unknown.","The specific path /api/v1/lab/results/70 is not listed on the provider's public catalog page, making its purpose unclear.","'Lab results' could refer to medical/health data, which may be a regulated category — but there is no evidence either way.","Documentation pages (/api, /pricing, /README) returned no useful content beyond 'Connect wallet'."],"endpointUrl":"https://lowpaymentfee.com/api/v1/lab/results/70","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/lab/results/70","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 via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no response schema, no example payloads, and the meaning of 'lab results/70' is undocumented. The crawled pages beyond the landing page returned only 'Connect wallet' with no useful content. 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":"2026-04-21T22:38:35.286Z","embedding":[-0.0140686035,-0.03503418,0.047332764,0.02330017,0.006046295,-0.020004272,-0.027252197,0.016540527,0.06072998,-0.08099365,0.031036377,-0.041870117,-0.010803223,-0.043060303,-0.02268982,0.0045776367,0.009407043,0.027145386,-0.057403564,0.012763977,0.03604126,-0.035186768,-0.017974854,0.004470825,-0.027740479,-0.04385376,-0.0015115738,-0.011138916,-0.015380859,-0.044158936,0.02330017,-0.023529053,-0.013664246,0.010124207,-0.04559326,0.0075531006,0.011276245,0.040649414,0.0046157837,-0.033081055,-0.018066406,-0.05117798,0.0014019012,0.017425537,-0.045166016,-0.0121536255,-0.004470825,-0.045318604,0.020141602,-0.020477295,-0.035949707,-0.005870819,-0.007972717,-0.0070343018,-0.004119873,0.00774765,0.014022827,-0.007881165,0.014976501,0.012336731,0.010070801,-0.054138184,-0.0019836426,-0.011741638,-0.005180359,0.042419434,-0.023727417,0.039276123,0.019927979,0.037353516,0.04385376,0.06585693,-0.009811401,0.022064209,-0.034698486,-0.013313293,-0.0012865067,0.061706543,-0.029693604,-0.04360962,-0.022857666,-0.02911377,0.0015897751,-0.0070762634,0.00038051605,-0.037200928,-0.010864258,0.0051460266,-0.020874023,0.0236969,-0.07324219,-0.037719727,0.015419006,0.03375244,0.018997192,-0.008010864,-0.024536133,0.013763428,-0.013755798,0.011695862,0.008560181,-0.028625488,0.010147095,0.006225586,0.022079468,0.049804688,-0.0050582886,0.02104187,0.0037574768,-0.029281616,-0.0015096664,0.0146484375,-0.022369385,0.015670776,0.008056641,0.017684937,-0.01965332,0.012298584,-0.029800415,0.014274597,-0.050994873,0.06414795,-0.00075531006,-0.028625488,0.015403748,-0.025848389,0.018447876,-0.00762558,0.0024299622,-0.011978149,0.025466919,0.006340027,0.014419556,-0.007499695,-0.04336548,0.02470398,-0.026184082,-0.029815674,-0.04800415,-0.06549072,0.033966064,-0.00819397,0.06561279,0.029434204,-0.068847656,-0.0071029663,-0.025100708,0.025772095,-0.017547607,0.00642395,-0.0006375313,0.033966064,-0.03503418,0.017440796,-0.020874023,-0.01525116,0.03704834,0.033843994,-0.03845215,0.035736084,0.007385254,0.03503418,0.01864624,0.00381279,0.030761719,0.041534424,0.0005917549,-0.07141113,-0.095214844,-0.01737976,-0.019012451,-0.018722534,-0.029327393,0.0013198853,-0.025039673,-0.035186768,0.015975952,-0.0057868958,0.015197754,-0.04949951,-0.008338928,-0.036010742,0.00932312,-0.003982544,-0.058807373,-0.02859497,-0.027008057,0.064575195,0.022323608,0.0050239563,0.05102539,-0.022109985,0.060302734,0.019592285,-0.03466797,-0.029556274,0.03390503,-0.006500244,-0.00058555603,-0.010017395,-0.012306213,-0.025894165,0.038146973,0.047668457,0.008758545,-0.031921387,-0.02243042,-0.055541992,-0.008003235,-0.036132812,0.025177002,0.022415161,0.015052795,0.06665039,-0.013465881,-0.025634766,-0.008224487,0.020843506,0.020080566,0.037597656,0.021408081,-0.005584717,0.036590576,0.0017309189,-0.05770874,0.03765869,0.035217285,-0.00756073,-0.020401001,-0.048461914,0.019378662,0.016418457,-0.014503479,0.0038146973,-0.007434845,0.03463745,-0.0017986298,0.014549255,0.023529053,-0.027893066,-0.022659302,-0.03845215,-0.006248474,0.03161621,0.0030956268,-0.030838013,-0.027633667,-0.101989746,0.057861328,0.041046143,0.011077881,-0.025390625,0.030288696,-0.056884766,-0.02470398,-0.039215088,0.028747559,0.028335571,-0.02859497,-0.041137695,0.019210815,-0.015853882,-0.037963867,-0.012527466,-0.024002075,-0.020523071,-0.0057373047,0.026748657,-0.0713501,-0.0012950897,0.028884888,0.017044067,0.039245605,-0.030075073,-0.040039062,-0.007320404,-0.009857178,0.030776978,-0.02734375,-0.010147095,-0.023864746,0.040985107,0.0103302,-0.022735596,0.017654419,-0.016799927,-0.0010890961,-0.03036499,0.01637268,-0.0027942657,-0.0075149536,0.021575928,0.023223877,-0.06274414,0.0005812645,-0.0107040405,0.08892822,-0.051361084,0.036346436,-0.005104065,-0.011505127,0.04611206,0.009567261,-0.05505371,0.0138549805,0.040283203,0.024917603,0.030654907,-0.0124435425,-0.0309906,-0.020812988,0.07373047,-0.007904053,-0.02519226,0.00390625,-0.0022659302,0.028961182,-0.0008921623,-0.0690918,-0.03704834,-0.013702393,-0.031402588,0.03756714,-0.024017334,-0.005973816,0.01159668,0.00881958,-0.029327393,0.0000062584877,-0.0127334595,0.013923645,-0.014289856,0.01423645,-0.002122879,0.029876709,0.01965332,0.005279541,0.009506226,0.010299683,0.054534912,-0.009994507,-0.01586914,-0.03111267,-0.0061035156,0.0012979507,-0.0072021484,0.04434204,0.013336182,0.0016498566,0.022201538,-0.02218628,0.015182495,0.0284729,0.029067993,0.018859863,-0.0070991516,0.0040779114,-0.07269287,-0.025238037,-0.032806396,-0.064819336,0.031311035,0.026245117,0.01777649,0.045959473,0.00920105,-0.04345703,-0.053466797,0.040985107,-0.053497314,0.008415222,0.024597168,0.0049552917,-0.019897461,-0.010108948,-0.008102417,0.016601562,0.040649414,0.02368164,0.036956787,0.07745361,0.060272217,-0.009239197,0.018936157,0.03186035,0.019561768,-0.01802063,-0.006412506,-0.03491211,-0.009780884,0.0030403137,-0.019317627,-0.016098022,-0.082336426,0.048187256,0.051086426,0.05126953,0.024917603,0.00484848,0.035614014,-0.0028572083,-0.005218506,-0.030410767,0.0024700165,0.0017356873,-0.06732178,0.024246216,-0.003768921,0.020462036,-0.02911377,0.02722168,-0.00667572,0.01638794,-0.03338623,0.045806885,-0.008018494,0.006916046,0.037994385,0.007129669,0.040649414,0.06793213,-0.04373169,0.039215088,0.030258179,-0.026382446,0.003604889,0.048828125,-0.022628784,-0.022079468,-0.046081543,-0.04324341,0.009147644,-0.020767212,-0.05657959,-0.021835327,0.008361816,-0.0004711151,0.021942139,-0.03741455,-0.022857666,0.009391785,0.0046539307,-0.04586792,-0.003921509,-0.037750244,0.022277832,0.007881165,-0.019485474,0.00409317,-0.0107421875,0.008255005,-0.02067566,0.004699707,0.015586853,-0.015655518,-0.04626465,0.012702942,-0.020751953,0.020843506,-0.0066833496,0.04510498,-0.0065345764,0.0385437,0.03326416,-0.0023994446,-0.0018568039,-0.058013916,0.013793945,-0.048706055,-0.0019283295,0.02998352,-0.050476074,-0.009307861,-0.012786865,-0.030914307,-0.00111866,-0.0025978088,-0.051879883,-0.001991272,0.014419556,-0.0072288513,-0.025634766,-0.03353882,-0.02758789,-0.0128479,0.05630493,0.008888245,-0.0063972473,-0.06161499,-0.0146865845,0.04425049,0.0010194778,0.013366699,-0.014373779,-0.0158844,0.0058670044,-0.035125732,0.023864746,-0.0015850067,0.04055786,-0.00016355515,-0.012588501,0.015037537,0.015640259,0.041656494,0.018829346,-0.0014657974,0.062347412,-0.026123047,0.0206604,-0.002784729,0.05316162,0.015350342,-0.03817749,-0.05114746,0.019500732,0.002866745,0.021743774,-0.034088135,0.019012451,-0.012207031,0.0046195984,0.0018196106,-0.008140564,-0.013442993,-0.012748718,-0.055389404,-0.057403564,0.043640137,-0.0036296844,0.018310547,0.009338379,0.009361267,0.020187378,0.011039734,-0.024673462,0.04385376,-0.020843506,-0.02230835,-0.054504395,-0.021514893,-0.020767212,-0.02116394,-0.017623901,0.014595032,-0.018081665,0.029891968,0.012313843,-0.0043640137,0.013725281,0.02268982,-0.0043182373,0.020507812,0.007369995,0.011413574,0.026031494,0.014129639,-0.0446167,0.017654419,0.009651184,-0.0018234253,0.011978149,0.039031982,0.013389587,-0.008300781,0.010665894,-0.0019321442,-0.04058838,-0.043060303,0.015777588,0.01020813,0.020050049,-0.008026123,-0.024887085,0.028839111,0.021194458,-0.03942871,-0.005558014,0.027999878,0.018829346,-0.023529053,-0.0024814606,0.034057617,0.04336548,-0.022125244,0.010475159,0.0064735413,0.031021118,0.03894043,0.014724731,-0.009429932,0.022232056,0.0057411194,0.018310547,-0.0033893585,-0.026107788,0.020584106,-0.0047073364,0.026565552,0.009628296,-0.0043258667,0.007537842,-0.012878418,0.002981186,0.011024475,-0.010040283,0.010009766,0.020553589,0.02973938,-0.022415161,0.020690918,0.0022392273,-0.027328491,-0.017333984,0.02444458,0.040252686,-0.034332275,-0.013702393,0.016403198,0.006137848,0.022338867,-0.03643799,-0.028701782,-0.005340576,0.011352539,-0.02911377,-0.039520264,-0.025115967,-0.010025024,0.029953003,0.0059394836,0.013023376,0.024002075,-0.010444641,0.010643005,0.016052246,0.0012645721,-0.010917664,-0.012664795,-0.040100098,0.025894165,0.020187378,-0.0065345764,-0.036315918,0.003408432,-0.025268555,-0.030029297,-0.009811401,-0.024795532,-0.010498047,-0.011695862,-0.0013408661,0.006164551,-0.0024261475,0.0031852722,-0.019683838,-0.04067993,-0.0051841736,0.030883789,0.01838684,-0.036071777,0.017501831,-0.010726929,0.00052785873,-0.007320404,0.03845215,0.020812988,0.035186768,0.0078125,0.025970459,-0.02168274,0.017364502,-0.02079773,-0.010597229,0.016860962,-0.028289795,-0.021865845,-0.021713257,-0.02748108,0.041168213,0.016540527,-0.01134491,-0.027374268,-0.031677246,-0.0036888123,-0.049835205,0.024505615,0.0625,0.032714844,-0.003704071,0.009780884,0.01133728,-0.010055542,-0.013389587,0.000033795834,-0.017410278,0.024017334,0.009170532,0.0042915344,-0.023345947,-0.006023407,-0.02670288,0.011703491,-0.052490234,-0.04574585,-0.015670776,-0.012802124,-0.017120361,0.019348145,-0.02142334,-0.0051116943,-0.002571106,-0.036224365,0.026824951,0.0011863708,-0.0011749268,-0.00088071823,-0.0259552,-0.0027236938,0.012535095,-0.005760193,0.043670654,-0.0016670227,-0.028656006,-0.024215698,0.003145218,0.031677246,0.02998352,0.00491333,-0.01979065,0.019088745,-0.02760315,-0.06677246,-0.005290985,-0.0077590942,-0.0011253357,-0.011650085,-0.005191803,-0.045196533,0.007045746,-0.033050537,-0.0016736984,0.0055999756,0.02067566,-0.004425049,0.018417358,0.006942749,-0.008529663,-0.016708374,-0.04660034,0.0099105835,0.010597229,0.0028743744,0.013366699,0.059417725,-0.013298035,-0.015930176,-0.01675415,0.008842468,0.020202637,-0.022094727,0.0068626404,0.021606445,0.009506226,-0.0033607483,-0.01927185,-0.017150879,-0.014678955,0.06970215,0.013366699,-0.0032081604,-0.008041382,0.0017681122,0.025238037,0.021636963,-0.026123047,-0.0076026917,-0.03741455,0.01033783,-0.01927185,0.027664185,-0.0059051514,0.029327393,-0.01828003,-0.04156494,-0.0061149597,0.005092621,-0.018127441,-0.073791504,-0.022583008,-0.053863525,-0.00022649765,-0.030776978,-0.0075187683,0.0040397644,0.02330017,-0.0287323,-0.08282471,0.003408432,0.016830444,-0.015052795,0.00907135,-0.028289795,0.012130737,0.013092041,-0.05505371,-0.00074338913,0.034057617,-0.03463745,-0.0046157837,-0.009155273,0.008270264,-0.01322937,-0.014808655,0.00655365,-0.0017728806,0.001329422,-0.04168701,0.008964539,-0.022766113,0.005519867,-0.0078048706,0.02217102,-0.012268066,-0.011016846,0.052764893,-0.05355835,0.025527954,0.028747559,0.012542725,0.0069999695,0.00944519,0.003545761,-0.033691406,-0.005016327,0.032928467,0.0035419464,0.033721924,-0.013671875,0.022216797,0.01486969,-0.010055542,0.00018966198,-0.01889038,-0.005466461,-0.046020508,-0.023483276,0.010734558,-0.0044174194,0.019104004,-0.014625549,-0.0056762695,-0.0070343018,0.0056877136,-0.0036525726,-0.025405884,-0.013412476,-0.026107788,0.008407593,-0.00819397,-0.0005645752,-0.019821167,0.019256592,-0.003490448,0.05102539,0.0025348663,-0.008407593,0.0009613037,0.02935791,0.004749298,0.004371643,0.015235901,0.0184021,0.03704834,0.00705719,0.0074424744,-0.06109619,-0.029663086,-0.01348114,-0.008018494,0.02180481,-0.014350891,-0.003162384,0.022354126,0.009941101,-0.004184723,-0.040039062,0.015823364,-0.042175293,-0.013893127,0.007247925,-0.028411865,0.020492554,0.025665283,-0.0074806213,0.033203125,0.006416321,0.045898438,0.0032424927,0.016357422,0.03463745,0.034332275,0.017990112,-0.026611328,0.011222839,-0.010513306,-0.007888794,-0.0018634796,-0.0038414001,0.0014886856,0.015090942,-0.02659607,-0.00008523464,0.01109314,0.00052547455,-0.006778717,0.017105103,0.013908386,0.02078247,-0.010101318,0.038970947,-0.04437256,0.036621094,0.023590088,-0.017868042,-0.02154541,0.017715454,-0.01979065,0.007858276,0.0079574585,-0.013130188,0.024215698,-0.017059326,0.032928467,-0.029663086,0.002986908,-0.00089788437,-0.02748108,-0.006526947,0.021636963,-0.0060424805,-0.019332886,0.00598526,-0.037017822,0.028152466,-0.044189453,0.03741455,-0.009712219,-0.0042800903,-0.001452446,-0.0234375,-0.04321289,0.0046539307,-0.009765625,-0.009635925,-0.0034866333,0.026565552,0.018737793,0.032928467,0.040252686,0.0018005371,-0.0069351196,-0.02909851,-0.03488159,0.01576233,-0.020339966,0.03994751,-0.0029029846,0.026275635,0.05355835,-0.0042800903,0.026931763,0.03967285,0.025558472,0.0070648193,0.013725281,-0.00071144104,0.00046515465,-0.00049352646,0.013763428,0.008270264,0.05609131,-0.037750244,0.022781372,0.02243042,0.016342163,-0.010414124,0.035003662,0.071899414,0.011039734,-0.012039185,0.029403687,-0.005138397,-0.020599365,0.0035171509,-0.02180481,0.04638672,-0.009155273,0.046722412,0.040740967,0.018188477,0.01348114,0.021499634,-0.017868042,-0.010192871,0.038269043,0.0037174225,-0.0043792725,-0.024429321,-0.0068588257,-0.010375977,-0.033813477,-0.023834229,0.00092601776,0.0006046295,-0.0066184998,-0.005973816,0.009361267,-0.0016059875,0.011459351,0.03062439,0.019073486,-0.0067253113,0.028701782,0.00018060207,-0.014221191,0.026565552,-0.010421753,0.03265381,-0.011405945,-0.023742676,0.009811401,0.020233154,-0.0057754517,-0.027633667,0.001865387,0.010856628,0.048980713,0.025924683,-0.028625488,0.0015668869,0.027786255,0.027633667,0.026290894,0.049224854,0.013648987,0.015808105,0.023086548,0.024154663,0.024902344,-0.021743774,0.0007195473,-0.0076904297,0.016082764,-0.012527466,0.0052833557,0.00034308434,-0.019058228,0.027526855,-0.005329132,0.00009071827,0.030059814,0.022628784,-0.009048462,-0.01701355,-0.0011167526,-0.0013399124,-0.01398468,-0.008743286,0.012176514,-0.017837524,0.0118255615,0.018356323,0.038879395,-0.013946533,0.04562378,0.013504028,-0.018310547,0.003490448,0.023422241,-0.051940918,0.008781433,-0.002084732,-0.018569946,-0.040649414,0.023025513,0.018447876,-0.013015747,0.01499939,0.004398346,0.0011711121,-0.0036716461,0.03564453,0.020843506,0.012046814,0.009147644,-0.0063323975,0.049957275,0.05496216,0.008804321,0.0021743774,-0.011054993,-0.0017080307,-0.022323608,-0.024780273,-0.014717102,0.011169434,-0.0090408325,-0.035705566,0.005050659,0.024261475,0.0018424988,0.029663086,-0.006263733,0.013084412,0.0036716461,0.022079468,0.018188477,-0.0037593842,-0.011367798,-0.005695343,-0.021896362,0.045562744,0.02041626,0.020324707,0.024383545,-0.014465332,-0.0076446533,-0.005092621,-0.0069465637,0.022033691,-0.019622803,0.025314331,-0.002866745,-0.0059051514,-0.020233154,-0.033843994,0.013122559,-0.022750854,-0.021347046,-0.027877808,0.015090942,0.0067253113,0.033721924,0.030029297,0.028259277,-0.008476257,0.06738281,-0.0015697479,0.06378174,-0.008255005,-0.0046310425,0.03289795,0.04324341,0.02822876,0.011741638,0.028701782,-0.017623901,0.028213501,0.030151367,0.020431519,0.0068244934,0.0026893616,-0.0062446594,0.04296875,-0.011054993,0.036712646,-0.012832642,0.0060920715,0.008758545,-0.0026721954,-0.01108551,0.006439209,0.007144928,0.02053833,0.025024414,-0.02758789,-0.010253906,-0.005493164,-0.005672455,0.036132812,-0.01398468,-0.016540527,0.009315491,-0.008621216,0.004585266,-0.04156494,-0.009239197,0.0090789795,0.0067214966,-0.047668457,-0.0023937225,0.012275696,0.0093688965,-0.02571106,0.0132751465,0.015930176,-0.005519867,0.0011091232,0.039123535,-0.01309967,0.032928467,-0.015914917,0.030029297,0.045928955,0.007965088,-0.009887695,-0.007232666,-0.0002501011,-0.029800415,0.010513306,0.029251099,-0.023788452,0.010032654,0.0146102905,-0.015090942,0.010688782,-0.0036621094,-0.009880066,0.0039863586,-0.013908386,-0.006210327,-0.021575928,0.02330017,-0.004085541,0.018295288,-0.014389038,-0.012702942,0.009117126,0.03414917,-0.0016946793,-0.031982422,-0.0046195984,0.004348755,0.017410278,-0.039215088,-0.024398804,-0.0017204285,-0.04272461,0.016708374,0.014945984,0.004119873,0.019973755,-0.0076446533,-0.014129639,0.010055542,0.0041770935,0.018798828,0.0006365776,0.0053215027,0.00705719,-0.016021729,0.0050239563,-0.023086548,-0.009338379,0.013198853,0.022399902,0.01159668,-0.004714966,0.034851074,-0.017211914,0.005016327,-0.002670288,-0.01499176,0.034851074,-0.02784729,-0.0054779053,-0.0085372925,0.025436401,-0.018737793,-0.009567261,-0.007709503,0.03427124,0.041778564,-0.004711151,-0.013519287,0.034088135,0.0063171387,-0.00422287,0.04699707,-0.0024719238,0.044525146,0.027114868,-0.03488159,-0.024475098,0.007583618,0.0027809143,-0.008178711,0.026138306,-0.019348145,-0.021224976,0.014587402,0.028045654,-0.006790161,-0.018463135,-0.025634766,-0.013885498,-0.023803711,0.009391785,-0.0068130493,0.013847351,-0.008590698,-0.016601562,0.004951477,-0.01838684,-0.05038452,-0.017578125,-0.0013790131,-0.020721436,-0.053466797,0.016723633,-0.027709961,0.010948181,-0.02748108,-0.0008401871,-0.004749298,0.03491211,-0.0090789795,0.014808655,0.030151367,0.005428314,0.019012451,0.008224487,0.034301758,-0.02015686,-0.029586792,-0.004299164,0.008422852,-0.011558533,0.022949219,0.0003502369,0.02104187,0.012382507,-0.0037250519,0.0050354004,0.010292053,-0.024673462,0.012527466,-0.030181885,-0.0041885376,0.025024414,0.007835388,0.024475098,-0.013557434,0.024169922,-0.021118164,-0.010566711,0.03515625,0.04574585,0.0021686554,0.027374268,-0.001627922,-0.0034065247,-0.019073486,-0.004135132,-0.01979065,0.0016403198,-0.006439209,-0.013908386,-0.009521484,-0.00007593632,0.021026611,-0.016159058,-0.025466919,0.021270752,0.0061035156,0.004951477,0.031921387,0.019729614,-0.00072431564,-0.018920898,-0.01637268,0.0020580292,0.031707764,0.02696228,-0.025436401,0.0031204224,0.003435135,-0.0035190582,0.004901886,0.010665894,-0.02418518,-0.02217102,-0.0017957687,-0.018737793,0.013015747,0.004333496,-0.0019702911,-0.017089844,0.015258789,0.008056641,-0.0501709,-0.0018033981,0.015625,0.03543091,0.0020179749,-0.030181885,-0.0118255615,0.009284973,-0.0046081543,-0.020385742,-0.03378296,-0.040863037,0.01197052,-0.019012451,0.010719299,-0.0026435852,-0.009391785,-0.008712769,-0.010528564,0.011917114,0.00705719,0.036956787,-0.011924744,0.008087158,0.022460938,0.021255493,-0.013923645,0.011024475,-0.029327393,-0.005680084,0.013504028,0.018356323,0.010498047,-0.041534424,0.041778564,-0.0049705505,-0.02330017,0.039245605,0.02722168,0.027038574,-0.045837402,0.0048294067,0.009231567,0.00015616417,0.037902832,-0.007408142,-0.037017822,0.0053367615,-0.012680054,-0.018722534,0.016204834,0.015625,0.04977417,-0.018554688,0.01209259,-0.012138367,-0.031707764,0.0003311634,-0.0016784668,-0.015838623,0.0046958923,0.023452759,0.008529663,-0.0066184998,-0.01751709,-0.012619019,-0.018295288,0.0021915436,0.019699097,-0.0013399124,0.005405426,0.022705078,0.026031494,0.03945923,0.02973938,0.013580322,0.017456055,-0.008712769,0.0044670105,0.0003373623,0.06317139,0.020721436,-0.015380859,0.02305603,-0.0018281937,-0.03378296,-0.015144348,-0.01374054,0.0037345886,-0.01576233,0.027740479,0.01020813,0.023147583,-0.010421753,0.008964539,-0.02079773,0.004432678,-0.026306152,-0.0101623535,-0.034301758,-0.005584717,0.023757935,-0.0016050339,0.014289856,0.013465881,-0.005344391,0.024993896,0.05117798,-0.018951416,-0.021591187,-0.011856079,0.009986877,0.005268097,0.020858765,-0.0010480881,-0.010643005,-0.02041626,0.018569946,-0.018203735,0.014053345,-0.021118164,0.012565613,0.027557373,0.0018310547,0.0022525787,0.037078857,-0.0118255615,-0.018859863,-0.012496948,-0.004966736,0.034698486,0.030136108,-0.009140015,0.026306152,0.020217896,-0.042388916,0.05480957,-0.0043907166,0.025466919,-0.025848389,0.0067977905,-0.038970947,-0.017456055,-0.012008667,-0.0036067963],"createdAt":"2026-04-21T18:32:24.645Z","updatedAt":"2026-04-23T02:02:21.429Z","lastSeenAt":"2026-04-23T02:02:21.429Z","tsv":"'/api/v1/lab/results/70':49,153 '/request':17,34 '0.02':16,33,79,138 '000':128 '0x8335':103 '20':127 '2913':104 '402':122 '402 payment endpoint' '6':133 'Base network API' 'USDC micropayment API' 'accept':141 'access':158 'agent':213 'ai/ml':69 'analyt':68 'api':64,84,157 'application/json':147 'base':9,26,98,129 'base-network' 'broader':55 'call':4,21,63 'catalog':197 'categori':185 'challeng':123 'commit':91 'confirm':114 'contract':102 'data':45,67,72,209 'decim':134 'describ':163 'document':162,227 'dozen':58 'enabl':38 'endpoint':7,24,39,65,116,140,183,221 'equal':137 'exact':109,208 'exact-pay':108 'exampl':206 'finance/web3':71 'http':142 'includ':190 'infer':70 'infrastructur':74 'json':220 'json-response' 'key':85 'lab':5,22,43,172 'lab results API' 'lab-results' 'label':155 'land':179 'limit':88 'list':181 'live':118 'lowpaymentfee' 'lowpaymentfee.com':41 'maxamountrequir':125 'network':99 'no-api-key' 'offer':57 'opaqu':219 'openapi':200 'page':180 'part':52 'particular':192 'path':48,193 'pay':2,19,61 'pay-per-cal':1,18,60 'pay-per-call' 'pay-per-request data' 'payload':169 'payment':93,110 'peer':186 'per':3,20,62,80 'platform':56 'post':143 'premium':156 'price':77 'probe':113 'proper':121 'provid':177,224 'public':196 'publish':225 'rate':87 'refer':174 'remain':211 'request':81,144 'requir':92 'resourc':151 'respons':148,168,202 'result':6,23,44,173 'return':119,146,210 'schema':203 'scheme':111 'serv':42 'settl':12,29,95 'shape':165 'span':66 'spec':201 'specif':150 'treat':215 'unclear':212 'unit':130 'usdc':14,31,101,131 'usdc-settlement' 'use':100 'util':75 'via':10,27,105 'without':198 'work':205 'x402':11,28,37,107 'x402 paid endpoint' 'x402-enabled':36 'x402-payment'","prices":[{"id":"4e4c2695-c8a2-4061-ab41-c55cd8cc005e","listingId":"166832fc-664c-4063-83ed-85900ad5707a","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/lab/results/70","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:24.645Z"}],"sources":[{"listingId":"166832fc-664c-4063-83ed-85900ad5707a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/lab/results/70","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:24.645Z","lastSeenAt":"2026-04-23T02:02:21.429Z"}],"details":{"listingId":"166832fc-664c-4063-83ed-85900ad5707a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/lab/results/70\n# Returns 402 with x402 challenge. Attach X-PAYMENT header with valid USDC payment on Base to receive the JSON response.","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 maxAmountRequired of 20000 base units in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/lab/results/70"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/lab/results/70"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The provider offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving lab result data (ID 70) on demand with per-call USDC micropayments","Integrating pay-per-use data endpoints into autonomous agent workflows without pre-registration","Demonstrating x402 payment protocol integration on the Base L2 network"],"bestFor":["Agents or developers needing keyless, pay-per-call data access","x402 protocol experimentation and integration testing","Low-friction micropayment API consumption on Base"],"notFor":["Users who need detailed API documentation or response schemas before integrating","High-volume batch processing where per-call pricing is inefficient","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:03.792Z"},"updatedAt":"2026-04-23T02:02:21.429Z"}}